Foil for pipe insulation how to insulate it. Brilliant thermal insulation: foil insulation

20.06.2020

Infrared radiation passes unhindered through most heaters. Thermal insulation for pipes with foil is highly reflective and retains heat much more effectively than materials without a protective layer.

According to average statistics, a building loses from 40% to 70% of heat energy in winter. Heat loss occurs for three reasons: due to the high thermal conductivity of the pipe material, due to convection and due to infrared radiation. Heat transfer can be stopped by reflection.

You can buy foil insulation for pipes, or you can wrap the heat-insulating layer with foil yourself. Such insulation is sold either in rolls or in the form of hollow tubes. The foil is placed face down. It is important to provide a gap of 1-2 cm between the foil and the pipeline. The disadvantages of the foil are its fragility and susceptibility to the influence of aggressive substances. The top protective layer transmits about 10% of the energy.

The choice of insulation

Insulation (polyurethane foam, fiberglass, polystyrene foam, mineral wool, polyethylene foam) can be covered with a metallized film or aluminum foil on one or both sides.

Mineral wool covered with a layer of foil is the easiest option. The thickness of the reflective surface is from 10 to 30 microns, the thickness of the wool is up to 5 cm. The foil with foam plastic has increased strength. Polyethylene foam foil is more brittle and can be deformed under the action of external forces. The advantage of such a heater is vapor permeability. Basalt thermal insulation is similar to mineral wool, but heavier, as it has a higher density. Undeniable ease of use gives thermal insulation with a self-adhesive base. If the foil is damaged in some place, you can use aluminum tape. It will also be needed when joining parts of the material.

Foil insulation. Aluminum surface reflects heat waves like a mirror

Lavsan film and polyethylene foam with foil can transmit infrared radiation. Therefore, you should choose a film with a thick foil layer. Poriflex NPE-LF, penofol 2000, BestIzol, Ecofol are the most popular brands of foil pipe insulation. The air layer inside the polyethylene foam and the upper polished layer allow the materials to be used not only in industry, but also in private homes. The thickness of such insulation usually does not exceed 1 cm. Quality assurance applies only to materials that have been certified.

Why foil insulation is the right choice?

The material can be used at an ambient temperature of -60°..+150°.
Vapor permeability: 0.001% (the foil almost does not let steam through). Water absorption: 0.74% per day.
Ease of installation, low cost, environmental friendliness, good waterproofing properties, the ability to absorb noise and dampen vibrations in ventilation systems.
Creating the effect of "thermos".
Ease of installation and environmental friendliness of the material.

Disadvantage of foil: high thermal conductivity. That is why it is used not separately, but together with traditional heaters.

Foamed polyethylene reliably retains heat

Thermal insulation for pipes with foil

Heating and sewerage

Rockwool cylinders – the best solution for heating pipes ventilation ducts, air conditioners and sewer pipes. This flexible foil pipe insulation is resistant to chemical irritants and easy to install. Covered with a protective layer casings are strong and durable.

Mounting method:

First, cut the desired length of the segment. Segments are joined close to each other.
Then, 2 fasteners are installed on each segment with a distance of 500 mm between them.
For vertical sections, retainer rings are used that prevent the cylinders from slipping over time.
For curved pipes, the cylinder is trimmed by trying on a hole along the pipe.

Technical thermal insulation - hollow cylinders made of stone wool and covered with aluminum foil. It is intended for isolation of thermal networks, industrial pipelines. Have a longitudinal cut for the most simple installation.

The seams between the components are glued with aluminum tape

chimney

Chimney insulation is necessary to create good traction. The heat barrier prevents the formation of condensate, which means it protects the chimney from destruction.

Learn how to make a foil chimney cover for an iron chimney. You will need mineral wool (wire-stitched Rockwool mats work), foil, and fasteners.

Unwind the roll, separate the desired segment with a pruner.
Using fasteners and wire, wrap the pipe with insulation.
Wrap the top with aluminum foil and secure with zip ties. Instead of mineral wool, any other non-combustible material can be used.

It is enough to put the casing on the pipe and fix it - reliable protection heat guaranteed

Pipe insulation Energoflex

Has its strengths and weaknesses. The advantages include strength, moisture resistance, immunity to temperature extremes. The material does not cause difficulties during installation, has light weight. The layer thickness can be from 9 to 13 mm, length - up to two meters. Suitable for pipelines with a diameter of 18 to 160 mm. Flexible material can be laid on areas with complex geometries.

Energoflex does not need additional wrapping with roofing material. The disadvantages are the high cost and the inability to install it where the temperature of the working medium of the pipeline exceeds 100°.

Important points:

If you buy rolled insulation, make sure that it is designed specifically for pipes before buying.
Rigid material in the form of semicircles has a size that allows you to put it on a pipe of a specific diameter.
A distance of 2.5 cm must be maintained between the wall and the aluminum foil.
The price of insulation is affected by both the thickness of the reflective layer and the base material.
There is a significant difference between aluminum spraying and aluminum foil. In the first case, the heat insulator will work less efficiently, its reflectivity is low.

Video: installation of Rockwool thermal insulation

Insulation with a layer of foil retains heat better due to its reflectivity, does not cause difficulties during installation and is environmentally friendly.

Why is foil pipe insulation so good? Foil insulation for heating pipes

Advantages of foil thermal insulation (insulation) of pipes

Pipe insulation performs very important functions. Without it, we would have to lay pipes exclusively in rooms with a normal temperature level, or deep underground.

Otherwise, the cavity of the pipes cannot be protected from freezing in the cold season, and hence from paralysis of the entire water supply system.

However, now the thermal insulation needed to protect pipes is in abundance on the market. We will pay attention to its interesting subspecies - foil insulation for pipes. What are its features and advantages?

Article content

Features and purpose of heaters

As we noted above, pipe insulation is used almost everywhere. Its main task is to protect pipes from freezing in the winter. If the pipes are not treated properly, then at best the water supply system will partially freeze. At worst, it is completely blocked.

Thaw water systems, and even in winter time- an expensive pleasure. Not to mention the fact that in such situations the risk of damage or breakthrough of one of the sections increases significantly.

Also, the insulation protects the surface of the pipes from heat loss, which means it increases the overall efficiency. heating system.

Thermal insulation is used to protect chimneys and sewers. In the first case, the insulation plays the role of a limiter, so to speak, a protective layer that prevents drains from freezing and clogging the pipe. In the second, insulation is necessary to prevent steam condensation and improve draft inside the chimney.

Foil as insulation

Foil insulation is often used in construction. However, don't be fooled into thinking that foil is the standard material for thermal insulation.

On the contrary, the foil performs those functions that ordinary heaters, such as mineral wool or polystyrene, are simply unable to cope with.

It's all about the special properties of the foil. You probably already know about the types of thermal radiation. If not, we will now briefly recall.

There are three types of radiation:

convection;
heat transfer due to thermal conductivity;
ultraviolet or thermal.

The first option does not interest us, it is limited by special means. The second option is the main item of heat consumption. It consists in the fact that any structure or equipment quickly gains or releases heat from the atmosphere.

To reduce the rate of interaction with the thermal environment, standard thermal insulation is used. Its thermal conductivity is too low for heat transfer, which means that a structure protected by such a casing will not encounter low-temperature zones at all.

But the third type of radiation is not able to level the usual insulation. For such tasks, a material is needed that is capable of reflecting heat waves that are not visible to the eye. Just for such purposes, foil is used.

It reflects heat radiation, preventing unnecessary energy consumption. At the same time, for effective interaction it is enough to have a layer of foil with a thickness of only 1 mm, or even less.

The need for combination

So why not use foil alone, you might ask. Surely you can do there, if not for one of its serious shortcomings. The foil is very fragile. Even building samples with a fairly serious thickness can be damaged with bare hands.

Yes, and it is really difficult to mount such a delicate material as thermal insulation.

Manufacturers immediately understood the essence of the problem, and offered an elegant, but at the same time extremely effective solution. They began to produce foil insulation. That is, combine standard materials for insulation with the foil itself.

In terms of effectiveness, the material received exceeded all our expectations. A man managed to create a heater that is able to cope with two main articles of heat loss at once.

Losses due to different levels of thermal conductivity are eliminated by the base thermal insulation material (mineral wool, polystyrene, etc.). And the foil shell reflects heat radiation.

At the same time, the risk of destruction of the foil no longer threatens us, and if the shell breaks somewhere, then it's okay. It is specially glued to the body of the insulation so that serious damage to even a large area does not affect the overall protection of the structure.

It is quite obvious that similar schemes began to be used for pipe insulation with the same enthusiasm. Even more than that, foil thermal insulation for pipes has become the most popular solution. recent years.

Types of foil insulation

Foil thermal insulation is combined with several materials at once. You need to choose one or another sample carefully, weighing all their properties, and also taking into account the characteristics of a particular insulation.

There is foil thermal insulation:

Mineral wool.
Styrofoam.
With polyethylene foam.
With foam base.

We have listed only the main samples. There are also less popular, specialized options, so to speak, but they are either too expensive or used in a narrow direction.

Mineral wool insulation

Mineral wool insulation with Rockwool foil is deservedly considered one of the most versatile options.

Pipes finished with such material do not need additional protection. Mineral wool eliminates the main article of heat loss. It has an extremely low thermal conductivity, that is, the pipe does not contact the external environment at all, and also does not give up its heat.

The foil reflects inward all the heat waves of radiation, which cotton wool is simply not able to isolate.

The foil is glued directly onto the mineral wool layer. Its thickness is determined by the diameter of the pipe and the approximate temperature level. As a rule, a thickness of 3-6 cm is also enough for domestic needs. If large main pipelines are considered, then here the working thickness will already increase to 10 cm or more.

Sold mineral wool insulation for pipes in the form of cut half blanks. You only need to fasten them around the pipe and blind them together. Then glue the joints with foil tape. That's the whole working procedure. It takes a few minutes at the most.

Foam insulation

Foam has always competed with mineral wool. And pipe insulation is no exception.

If the mineral wool is quite expensive and has excellent performance, then the foam is similar in its parameters to it, only it is several times cheaper. It would seem, why then buy wool insulation at all, if you can take polystyrene.

The answer is simple - foam material is an artificial material, mineral wool is natural. Plus, Styrofoam burns in fire and is completely vapor-tight.

However, here it is necessary to understand the specifics of the insulation of pipelines. In the case of interaction with pipes, we are not interested in vapor permeability or the structure of the insulation. Therefore, foam can be used without fear.

The only drawback that should still be taken into account is flammability. Try to either not use Styrofoam at all in areas with a high risk of fire, or use it in appropriate protection.

In part, the foil just forms this very protection, but only in part. Upon contact with high temperatures, the foam will quickly catch fire, becoming essentially one of the sources of fire.

As for the design of the insulation, the foam is produced in the same way as the minuvata - in specially cast half-forms, around which foil is glued.

Polyethylene foam foil

Foamed polyethylene with foil is a more modern insulation. It cannot boast the same thermal conductivity as mineral wool, or the cheapness of polystyrene, but it is light and easy to handle.

Foamed polyethylene is probably the easiest to install. After all, the blanks are very plastic, made in the form of ready-made shells for pipes, cut along the axis.

You just need to put the insulation on the pipe like a peel, and then blind the seams with special glue for polyethylene. It is sold at any hardware store.

Foamed polyethylene has a soft structure, does not corrode, does not react to moisture. It is produced in blanks with wall thicknesses from 1 cm to 5 cm. There are also larger samples, but there is no use for them in domestic construction.

Foil polyethylene is so easy to use that it is even placed on those systems that, by and large, do not need insulation. In this case, thermal insulation performs protective and aesthetic functions.

Features of pipe insulation (video)

The use of penofol

The last sample under consideration is a penofol insulation. Penofol is a material that consists of two components: foil and a thin layer of hardened foam. It cannot be called a traditional solution.

The thickness of the material rarely exceeds a few millimeters. Penofol cannot boast of high thermal insulation properties. In fact, it is just a protective wrapper with a reflective effect. However, for basic protection of pipes, it is sometimes used.

Penofol is very cheap. Square meter sells for $1 or even less. It is also easy to cut and glue. That is, a pipe of any diameter can be quickly wrapped as you need.

The quality of the result, of course, cannot be compared with the use of the same foam or polyethylene foam, but if there are no other options, then this one will be a joy.

Moreover, you can work with it with your own hands, practically without spending additional funds.

tubepro.ru

Foil insulation for walls and pipes

The technical characteristics of foil insulation make it possible to use it for insulating pipelines, roofs, walls inside and outside the premises. Installation behind a heating radiator is also possible, which will increase heat transfer. In fact, such material has found wide application in the arrangement of the attic, roofing, for sound insulation, and insulation of entrance doors. Let us consider in more detail the types and features of heaters with foil, because they can be called differently.

Types of foil insulators

By the name it is clear that this is not just a foil, but a material with heat-insulating properties, on which it is glued. The following can be used as a basis:

mineral wool;
expanded polystyrene;
foam polyethylene.

Regardless of the name, foil insulation works on the same principle. The insulator consists of two layers, one of which reflects IR rays, and the second is endowed with thermal insulation properties. When infrared radiation hits the heat reflector, the main part of the rays is reflected. Heat transfer occurs by convection, i.e. through the air. Since the foil has no resistance, when heated, it passes all the heat through itself. After that, the main material, which is a heat-insulating layer, which has a very high resistance to heat transfer, comes into operation.

The name of the insulator used as a base will determine the overall resistance of the insulation with foil to heat transfer. It is important to understand that the use of the material indoors implies the presence of a finish, and in order for the IR rays to be reflected, the distance between the foil and the insulated surface should be no more than 20 mm. Heat will be transferred to the foil layer through the trim.

Scopes of foil heaters

A material such as polyethylene foam has another name - teplofol. The scope of its application is wide: insulation of walls, floors, roofs, pipelines, systems warm floors, baths, saunas.

Can be used for indoor and outdoor installation. Such an insulator is a rolled material 1 m wide, 1 to 20 mm thick. Due to the porous structure, it does not allow moisture to penetrate, which eliminates the accumulation of condensate. This gives the material good vapor barrier properties. It can be ceiling, wall or floor. But experts recommend using thermal insulation of the same thickness. In addition, such material is environmentally friendly, safe, characterized by a high level of thermal insulation. In addition, it is offered not only as a regular, but also as a self-adhesive insulation.

There are several varieties of the considered insulator on the market. The differences lie in the technical characteristics and areas of application. Walls and ventilation ducts are insulated with polyethylene foam. The floors are insulated with foil polystyrene foam, which is a thick slab.

For rooms with a high level of humidity, foil mineral wool has proven itself well. Such material can be used to insulate roofs and chimneys. Basalt-based heat insulator is used at very low and high
temperatures.

The considered type of insulation is characterized by good flexibility, which allows thermal insulation of non-standard structures. The material can also be used to protect metal structures from corrosion. Insulation with foil appeared on the market not so long ago, but at the same time it already has numerous positive reviews. This is due to significant savings during the heating season. But before making a choice in favor of this material, in addition to the positive qualities, you need to know about one significant disadvantage: the foil may be subject to corrosion after a while. We will figure out with what and how to fix this insulation.

How to insulate walls with foil material?

To work with foil insulation, you will need the following kit:

heat insulator;
stapler;
small nails;
hammer;
dowels;
wooden slats;
foil tape.

Warming has found application both in country houses and in apartments. In a private house, for thermal insulation of walls from the inside, you will need to fill the slats, which will make the installation of insulation more convenient. In this case, a space for ventilation will be formed between the wall and the heat-insulating layer. The rails are mounted to the wall with dowels in increments of 1 m. The material is overlapped, then it is attached to the rails, for which it is better to use building brackets or self-tapping screws. Dowels provide more secure fastening. For gluing the joints use double-sided foil tape. Thermal insulation is laid with the foil side inside the room, after which drywall is mounted. To eliminate the gap between the wall and the insulation, before installing the thermal insulation, additional rails are mounted, to which drywall is fastened.

Foil insulation for walls is also used for thermal insulation of apartments. In particular, this applies to high-rise premises, which are problematic to insulate from the outside. In addition, it will be relevant to use this kind of thermal insulation from the inside if there is an elevator shaft, a corridor and other unheated premises behind the wall. Before starting work, it is necessary to inspect the walls: if there are cracks and cracks, they will need to be eliminated. On the walls, the material can be glued with a special adhesive after surface preparation.

Thermal insulation for pipes

Foil insulation for pipes is used when installing communications underground or by air. In addition, this material can be used to reduce heat losses by the coolant in unheated rooms. These include, for example, a boiler room in country house, which in most cases is located on the ground floor. In addition to foil, a metallized film can be used to cover the insulation. The simplest insulators for such tasks include foil mineral wool. In addition to mineral wool, foam plastic, penofol, teplofol can be used as the basis of insulation.

For domestic needs, a material thickness of 3-6 cm is quite enough.

There are no special difficulties when installing insulation under the pipeline. To do this, the shell is put on the required length, and, depending on the case, the protective film is removed from the adhesive layer. The film is applied along the end of the longitudinal section. When using a material with a foil coating only from the outside, the communication is protected from solar exposure. The foil, if present on the inside, reflects heat back into the pipe.

How to insulate the ceiling with foil insulation?

If you follow the recommendations of experts, then the thickness of the insulation with foil for both the ceiling and the walls and floor should be at least 50 mm. The ceiling of a brick or wooden building should be given special attention, because through it the largest number heat. When using mineral wool as insulation, it is important to know that this material absorbs moisture well and, when wet, all of it positive traits are lost. At the same time, it gives off moisture very poorly. To protect the insulation with foil for the ceiling, walls and floor, special films are used. In this case, mineral wool is considered, since it has such positive characteristics as fire resistance, environmental friendliness, good sound insulation and resistance to decay.

Ceiling insulation should be carried out in the following sequence (installation begins from inside the room):

Decoration Materials. For a wooden house, lining is often used.
Steam protection. A film that prevents the ingress of moisture. Installation is carried out tightly to the finish.
Ventilated gap. It is created during the assembly of the crate for the ceiling and is an air gap.
Insulation. Installation is carried out in such a way that heat is reflected inside the room.
waterproofing layer. It is necessary in order to prevent the ingress of moisture, but at the same time the material passes steam. Installation is carried out close to the heater.

The material is laid between the crate, for which wooden bars are used. Their thickness should be slightly larger than that of the insulation to ensure the ventilation gap. Waterproofing must be attached to the ends of the crate with brackets. In order for the insulation to hold tightly in the cells of the crate, the distance between the bars must be made 3 cm less than the dimensions of the heat insulator. A vapor barrier is mounted on top of the crate, and after that - finishing.

It was considered how to lay heat-insulating foil material, what types of it exist and in what areas they have found application. It is impossible to say unequivocally that this or that isolation has undeniable advantages. After all, much depends on the specific tasks in which each of the materials exhibits inherent positive properties. Nevertheless, it is worth highlighting teplofol, because this material has practicality and versatility.

uteplix.com

The use of insulation with foil - the solution of several problems at the same time!

Dealing with the problems of insulation during the repair of an apartment, the construction of a house, a bathhouse, other utility or utility buildings, any owner always faces the problem of choosing the optimal thermal insulation materials. It is good that in our time the range of them on sale is quite wide. But this variety of choice can play a "cruel joke" with an ignorant person - it is not surprising to get confused in such an abundance and make a mistake. Therefore, when going to the store for a purchase or about to place an online order, the consumer should already have an idea about the characteristics of the material, its features, applications and basic installation techniques.

This article will review thermal insulation materials, which, despite the fact that they may have a different basic base, are still united by one common important feature - a foil surface. So, we consider the varieties, advantages and disadvantages, price levels and practical use foil insulation.

Advantages and disadvantages of foil insulation

Any of the insulating materials has its own insulating qualities for the light foam, porous, fluffy, fibrous or other base, which allows you to create and hold a layer of air. Well, the air itself has an extremely low thermal conductivity, and in total a thermal insulation layer is obtained, the transfer of thermal energy through which, if not completely excluded, is significantly reduced. It is clear that any material has its own thermal resistance indicators, and the general capabilities of the insulation also depend on its thickness.

1 - mineral wool

2 - foamed polyethylene

3 - expanded polystyrene.

4 - foamed concrete.

But this, so to speak, is a passive role of a heater. Is it possible to make sure that the thermal insulator not only does not let heat pass through its structure, but also participates more actively, reflecting thermal energy in the right direction? It turns out that it is possible - and for this it is used by foiling.

The wavelength of infrared radiation is close to visible light, and the heat flux, just like a light beam, can be reflected from a mirror surface and redirected back. It is on this principle that any thermos works - a thin glass or metal flask for liquid with an internal mirror or polished surface, and an air (or vacuum) layer around.

Heat in such a simple design is stored for a very long time. Exactly the same principle is used for the insulation of residential premises, baths, industrial buildings and technological lines, agricultural facilities, etc. For this, foil insulation is used.

Modern technologies make it possible to apply a layer of aluminum foil on almost any thermal insulation materials, so that the strength of the resulting multilayer structure is maintained, without delamination. As a result, new heaters acquire whole line wonderful qualities:

The created "thermos effect" in the room allows much better to keep warm in winter, and vice versa - cool in summer.
Increasing the efficiency of thermal insulation entails a reduction in energy consumption for heating needs.
The foil surface itself is a good barrier against the penetration of moisture and water vapor, which in some cases makes it possible to do without an additional waterproofing layer.
Foiling does not in any way reduce the thermal insulation qualities of the material, on the contrary, it enhances them and allows the use of heaters of much smaller thickness, which sometimes has extremely importance.
Any type of foil insulation is also a good sound insulator.
Applying foil to the thermal insulator does not pose any threat from an environmental point of view. On the contrary, it often becomes a reinforcing barrier against the penetration of the smallest particles of material into the space of the room.
The material is easy to install, which does not require any special professional skills. Moreover, it can, if necessary, be dismantled and then installed in the same or another place.
The form of release of the material - rolls or panels, is very convenient for installation work.

Among the shortcomings, the following can be noted:

Aluminum is still subject to gradual corrosion, which is why it begins to become cloudy, and over time its reflective qualities weaken somewhat.
The metal layer can become very hot, and therefore, during installation, it is necessary to provide a small air gap between the insulation and finishing surfaces. By the way, the same air gap will contribute to the ventilation of the aluminum coating, and the absence of moisture on the surface of the foil will greatly reduce the aggressiveness of corrosion processes and thereby increase the service life of the material.

The main types of insulation with foil

Now it is worth considering in more detail the main varieties of foil heaters, their characteristics and areas of application. In private construction, materials made of foamed polyethylene, mineral wool or expanded polystyrene are widely used. There are other materials, for example, basalt-fiber-based plates with foil, but this material is expensive and has a specific purpose - for thermal insulation of technological lines, power plants, special industrial facilities, etc.

Foil insulation based on polyethylene foam

This is one of the most common and easy-to-use types of foil insulation. It is a layer of polyethylene foamed using a special technology, covered with one or two layers of foil 10 ÷ 15 microns thick.

The thickness of the insulation layer can be different - from 2 to 15 mm. The release form is usually rolls, but there may also be sheets of a standardized size, which is especially typical for the thickest (15 mm) types.

Three types of material are produced:

type A - one-sided foiling;
type B - the foil is applied on both sides, which is sometimes required to enhance the thermal insulation properties;
type C - foil on one side, covered on the other protective film self-adhesive layer, which facilitates, if necessary, the process of mounting on the ceiling or on vertical surfaces.

By type of application source material There may also be differences:

In inexpensive grades, ordinary NPE polyethylene is used, which is subjected to repeated foaming during the production process to create a closed gas-filled porous structure. The disadvantage of this material is its low resistance to deformation loads, the property of gradual shrinkage.
The best performance has a heater based on specially processed, "cross-linked" polyethylene (PPE). Its density is somewhat higher, but due to the transverse intermolecular bonds, it not only withstands mechanical stress better, but also seeks to recreate its original shape after removing the dynamic load. When purchasing material, this nuance must be taken into account.

Some types of such heaters may additionally have a fiberglass reinforcing mesh in their structure.

You can find many types of heaters based on polyethylene foam. Certified products of the brands Penofol, Ecofol, Isoflex, Izolon, Germaflex, Folgoizol enjoy well-deserved popularity. Some characteristics of these materials are given in the table:

Name of materialPenofolIzolonEcofolIsoflex

Miniature
	0,049	0.04	0,049	0,035
Density, kg/m³	35	26 ÷ 33	33	35 ÷ 45
Heat reflectivity	at least 90%	up to 95 ÷ 97%	at least 80%	at least 90%
Operating temperature range	from -60° to +100°С	from -80° to +80°С	from -60° to +90°С	from -60° to +80°С
Vapor permeability of the material, mg/m×h×Pa	0,001	0,001	0,001	0,001
Release form	Thickness 2, 4, 5 mm with foil layer 14 µm, rolls 1.2 × 30 m; thickness 8 and 10 mm - rolls 1.2 × 15 m	Web width - 1.5 m, thickness 2, 3, 4, 5, 8 and 10 mm, length per roll, respectively, 200, 170, 130, 100, 80 and 50 m. Individual sheets 15 mm thick, dimensions 1500 × 2000 mm	Rolls 1200 mm wide, insulation thickness 2, 3, 5, 8 and 10 mm, length 25 and 15 m.	Rolls 1200 mm wide, insulation thickness 2, 3, 5, 8 or 10 mm, length 25 and 15 m. Foiling thickness - 10 microns.

Foil polyethylene foam finds the widest application in repair and construction work. Sheets or strips of insulation are attached to the surface in any convenient way, but in such a way as to prevent a strong violation of the integrity of the foil (for example, it is permissible to fasten it with staples of a construction stapler). As a rule, the sheets are laid end-to-end, which is then glued with foil tape to provide a single integral reflective and insulating surface.

Floor insulation. It is used as an additional or even main (for example, in multi-storey buildings) thermal insulation layer, which can also play the role of a waterproofing layer. It is laid with the foil part up before laying the floor finish.

Thermal insulation and additional sound insulation of walls and ceilings, especially in conditions where the size of the room does not allow the use of thicker types of insulation (a classic example is a narrow balcony or loggia). Fastened with the foil side towards the room. Be sure to provide a gap between the foil and the finish coating (lining, panels, etc.). It is usually fixed on the surface with battens (counter-lattices), which become the basis for the cladding.

Insulation of roof slopes. Can be used alone or in combination with other materials. In any case, foil-wrapped polyethylene foam is attached last towards the attic space, and on top of it, observing the gap, the sheathing is mounted.

Bath warming. The foil layer simultaneously plays the role of a reliable vapor barrier, protecting the wall material from waterlogging. True, in the conditions of a steam room, where there can be critical high temperatures, the use of the material is not always justified due to the limited temperature range of its operation.

Thermal reflective screens behind heating radiators. Such a measure prevents thermal energy from being wasted on unnecessary heating of the outer wall, redirecting the infrared flux back into the room.

Interestingly, this material is widely used for other purposes not related to construction. So, it is great for warming and soundproofing car interiors. It is also used to make warm insoles for winter shoes.

Video: comparative tests of foam polyethylene foam insulation

Mineral wool with foil

The thermal insulation properties of mineral wool are very high in themselves. But additional foiling will only increase the effectiveness of insulation. In addition, this material is very hygroscopic, and an additional barrier against the penetration of moisture and water vapor will not allow the mineral wool to get wet and lose its qualities.

The form of release of the material is rolls, pre-compressed or sectional, or individual plates.

Insulation nameISOVER SaunaRockwool Sauna ButtsKnauf Insulation LMF AluRPAROC

Miniature
Thermal conductivity coefficient, W/m×°С	0,041	0,036	0.04	0,039
Density, kg/mm³	11	40	36	32
Thickness	50 or 100 mm	50 or 100 m	20 or 50 mm	50 or 100 mm
Release form	Rolls 1200 mm wide, 12.5 or 6.25 m long, with triple compression of the material.	Packs of 10 or 5 mineral wool foil boards with dimensions 1000 × 600 mm	Rolls 1000 mm wide, 10 or 5 m long	Mats 1200 × 600 mm or rolls up to 5 m

Due to the fact that the upper temperature limit of the operation of mineral wool exceeds 300 degrees, it is the best suited for insulating the surface of walls and ceilings in baths. In principle, this is the main purpose of such a foil insulation, although, of course, nothing prevents it from being used for other purposes, for example, for roof thermal insulation.

In any case, slabs or mats are placed between the batten guides. The step of the guides is initially set to 10 ÷ 20 mm less than the width of the insulation - so it will fit snugly into the niche intended for it. The density of the foil is usually such that the insulation can be fastened with brackets to the aluminum layer. The joints must be glued with foil tape to maintain the effect of hydrovapor barrier. A 20 ÷ 25 mm air gap is left between the insulation and the wall (ceiling) cladding.

Mineral wool insulation is also available in the form of collapsible cylinders or half-cylinders - these products are excellent for thermal insulation of pipelines.

The thermal resistance of mineral foil wool allows it to be used for additional thermal insulation of boilers, boilers, storage tanks, and other heat engineering devices.

Video: thermal insulation of the bath with foil insulation "ISOVER Sauna"

Styrofoam mats with foil

Not so often, but still another type of foil insulation is used. We are talking about plates (mats) of expanded polystyrene with aluminum foil on one side.

Such products can be produced in single mats, or in rolls of several meters, made in sections, like a tractor caterpillar.

The main purpose of such insulating foil materials is the thermal insulation of floors, both independently and in the “warm floor” system. A layer of aluminum foil reflects the heat flow upwards to warm up the finish coating so that expensive energy is not wasted on heating massive floor slabs or a subfloor laid on the ground.

To facilitate the process of laying the contours of the "warm floor" on most models of such mats, convenient, clearly visible markings are applied. Fixing the pipes will not present any particular difficulty - for this you can use special clamps with "harpoon" tips, which will securely hold the element in the thickness of polystyrene foam.

Fastening the "warm floor" pipe to the mat

It is better to purchase mats made from extruded polystyrene. Its increased density makes the material resistant to fairly significant mechanical stress, which is especially important when installing floors.

In conclusion of the review, one very important remark should be made. All of the listed advantages of foil insulation will be valid only if the material is of high quality. The fact is that some unscrupulous manufacturers limit themselves to applying a thin aluminized coating. This is far from foiling, although outwardly the materials may be similar. A thin deposited layer is not able to adequately reflect the heat flow - infrared radiation for the most part will pass through it. And such a “decorative” shiny layer will also not become an obstacle to the penetration of moisture and water vapor.

stroyday.ru

types, characteristics, pros and cons

In preparation for the work on the thermal insulation of the house, the question arises of choosing the optimal insulation. For an ignorant person, it is not easy to decide on a wide variety of thermal insulation materials. That is why, when going for a purchase, you need to prepare in advance: clarify the features of a particular insulation and the scope of its use, specifications etc.

A comfortable temperature in the house is often provided using porous or fibrous materials with low thermal conductivity. However, heaters that work on a different principle - on the reflectivity of a mirror surface began to gain more and more popularity. This is how foil thermal insulation works, which today is considered the most effective.

What is thermal insulation with foil

This is a combined insulation, which, in addition to the base base with low thermal conductivity, has a reflective layer of very thin, about 20-30 Å (angstrom), polished aluminum foil. This component provides the maximum effect of reflection of infrared rays, in fact, heat - up to 97%, and the base layer "takes over" the remaining 3%. Thus, the heat remains in the room.

Types of heaters

Foil thermal insulation has a variety of forms - in the form of rolls, mats, tiles, cylinders, used mainly for thermal insulation of pipes, and sizes. They differ in other respects as well.

View of the base layer.

foam polyethylene,
mineral or basalt wool;
expanded polystyrene.

Insulation foil technology. Aluminum foil for thermal insulation can be glued or sprayed, perforated or not.

Experts advise choosing thermal insulation with a glued foil layer. Sprayed reflective insulation is not as effective due to the too small thickness of the resulting layer, although it is more resistant to environmental influences.

Number of reflective layers. On some types of thermal insulation, foil can be applied on one or both sides, on others there is an adhesive layer, that is, in addition, such thermal insulation reflects, it can be laid directly on the surface without a crate. These heaters are labeled respectively A, B and C.

On a note

Since self-adhesive foil thermal insulation is quite flexible, it can be used for laying in corners, as well as on uneven surfaces. By gluing the connecting seams of heat insulators with foil tape, you can achieve their complete tightness.

Appointment. Thermal insulation materials coated with foil are used both as the main thermal insulation and additional.

For those who are going to buy thermal insulation, we note that the price of foil insulation is formed depending on such parameters as:

base material;
aluminum foil thickness;
height of the heat-insulating layer;
number of reflective screens.

Advantages and disadvantages

The foil has an excellent ability to reflect thermal radiation as much as possible. On the one hand, it retains heat in the room, on the other hand, it does not let heat in, that is, a “thermos effect” is created inside.
An additional layer of foil increases the wear resistance of the insulation.
It has hydrophobic properties, so in some cases it can replace waterproofing.
Heaters of this group have a small mass, are easy to cut and install. Moreover, if necessary, it can be dismantled and used again in the same or another place.

They isolate as much as possible from external influences: they do not let the wind through, they are resistant to critical temperatures, they significantly reduce the level of noise coming from outside, etc.
Such insulation lasts a long time, while it does not rot and does not become moldy.
It is much thinner than conventional insulation, but much more efficient and saves energy costs up to 25-30 percent.
The foil layer not only does not create problems for human health, but also becomes a barrier to the smallest particles of the base that can penetrate into the space of the room.

Of the minuses of heaters with foil, we note the susceptibility of aluminum to gradual corrosion. The reflective layer begins to become cloudy over time, which leads to some weakening of its main reflective qualities.

These materials are made on the basis of polyethylene foam using a special technology. The height of the insulation layer can be very different, ranging from very thin at 2 mm to relatively thick at 15 mm. As a rule, this is a rolled foil thermal insulation. Thicker materials can be supplied in standard size sheets.
The thickness of the foiled foil layer is 10÷15 microns.
The technical and operational characteristics of the insulation also depend on the type of source material:

Inexpensive grades are made from ordinary polyethylene subjected to a repeated foaming process. The result is a closed porous gas-filled structure of the new material. These heaters have a significant drawback - this is a tendency to gradual shrinkage due to low resistance to mechanical stress.
"Cross-linked" polyethylene (the so-called PPE-based heaters) has the best strength indicators. Cross-links at the molecular level provide resistance to mechanical stress.

Their density is slightly higher. Moreover, when the dynamic action stops, the material "tryes" to restore its original shape.

On a note

Some types of foiled polyethylene foam have an additional reinforcing layer of fiberglass mesh.

A wide range of heat-insulating materials based on polyethylene foam is presented on the construction market. Among them, foil Penofol, Izolon, Folgoizol and others are most in demand.

Insulation sheets are laid end-to-end and fixed to the surface, for example, using a construction stapler. In principle, you can use any other method. The main thing is that at the same time, the integrity of the foiling is not very affected. Then the butt joints are glued with foil tape.

Areas of use

It is used as an additional or main thermal insulation layer when installing the floor, which also acts as a waterproofing layer. When laying the foil part, it should look up towards the top coat.

It copes well with the thermal insulation of walls, as well as ceilings in rooms whose dimensions do not allow the use of thicker heaters, for example, on a narrow balcony (loggia). Fasten the material with a foil surface inside the room.
Used to insulate roof slopes independent material, and additional to others. In both cases, it is fixed with a reflective surface inside the attic room and a crate is stuffed onto it under the sheathing.
With it, equip the thermal insulation of the bath. Simultaneously with the insulation of the bath from the inside (ceiling, walls), the issue of vapor and hydroisolation is also being solved - protecting the skin from waterlogging. For critically high temperatures, such as, say, in a steam room, such a material is not very suitable, since it is operated in a limited temperature range.

Foil mineral wool

The mineral wool itself already has very high thermal insulation characteristics. Foiling, firstly, further increases the efficiency of insulation, and secondly, it is an additional way to protect the hygroscopic material from the penetration of excess moisture and steam, which could have an extremely negative impact on its performance.

The material goes on sale in the form of compressed rolls, sectional or individual plates, cylinders and semi-cylinders.

Application

When thermally insulating the roof, the material is placed in the inter-rafter space tightly enough so that cold bridges do not form.
The density of the foil is usually sufficient to be able to fasten the reflective layer to the staples. Joints must be glued with foil tape. This will help ensure the effect of hydrovapor barrier.

Maximum temperature the operation of this material is more than 300˚, so it is more than any other suitable for warming a bath. Some experts even consider this to be its main purpose. Insulating boards or mats are placed between the guides, laid with a step that is less than the width of the thermal insulation. It is obligatory to have an air gap of 20–25 mm, which is left between the thermal insulation layer and the wall and ceiling cladding.
The heat resistance of mineral wool with foil makes it possible to use it for additional insulation boilers, boilers and other similar appliances.
Collapsible cylindrical or semi-cylindrical thermal insulation materials made of foiled mineral wool are suitable for thermal insulation of pipelines.

Foam polystyrene foil

It is a durable thermoplastic obtained by fusing polystyrene granules with aluminum foil on one side. This is a strong material, resistant to significant mechanical stress and high humidity. It does not rot, biologically stable. Retains its characteristics in the temperature range from -180˚ to 180˚.

The material is often used when laying a warm floor. To facilitate this process, markings are applied to the plates at the factory. When laying the insulation, the foil layer reflects the heat flow upwards, warming up the finish coating.

stylekrov.ru

Foil insulation: types and applications

Foil insulation is a relatively new combined heat-insulating material, which is coated on one or both sides with a layer of polished foil with an aluminum layer or a metallized polypropylene film. Due to the aluminum component of the coating, this product is able to reflect and retain heat in the room, and the reflection effect reaches up to 97%.

Foil insulation: application

Its scope is quite diverse. Foil insulation is used for:

Insulation of pipes of thermal networks.
Insulation of pipes in engineering networks of a hot and cold water supply building.
Thermal insulation of air ducts, ventilation ducts.
Technical insulation of technological equipment.
Thermal insulation of walls and floors in residential and public buildings.
Soundproofing of interfloor covering.

Varieties of foil insulation

Foil insulation is currently available in four main types, which differ from each other not only in appearance, functional features, but also by scope.

Foil insulation, the basis of which is polyethylene foam. As a rule, this is the most effective heat insulator. This laminate is sold as thin rolls of aluminum coated material. This insulation with foil (another name is penofol) can have an adhesive layer in order to ensure the convenience and reliability of fastening to the surface. It is mainly used for warming the floor, roof, walls, ventilation system. In addition, this material is quite effective for insulating pipes and air ducts. It has good elasticity, vapor and waterproofing, heat and sound insulation, high shock-absorbing properties, resistance to biological pests and chemical attack.
Foil material, the basis of which is mineral wool. This unique foil insulation is available in the form of rolls (mats), plates and cylinders. Its basis is mineral wool. This environmentally friendly, durable and non-combustible material is used for all types of insulation. Perfectly is suitable for isolation of a sauna, warming of baths, roofs, flues.
Foiled polystyrene foam or insulation with foil, the name of which is isolon or foilizol. Used for warming the system of warm water floor and heating. Such insulation with foil refers to a durable heat-insulating material that retains its properties at a temperature of -180°C - +180°C.
Basalt heat-insulating insulation with foil. It is used in various branches of thermal power engineering, in housing construction, industry, in the aircraft industry, as well as for the construction of gas stations. This material is non-combustible and able to withstand temperatures -200˚C +700˚C. It has a higher resistance to aggressive environmental influences.

General characteristics of foil insulation

The material is stable over a wide temperature range.
Does not absorb moisture and has good reflection resistance.
It has high heat, steam and waterproofing performance.
Environmentally friendly material that does not emit any toxic and hazardous substances.
Installation is quite simple and fast. Even a non-professional will be able to correctly install, for which it will be enough just to follow a very simple instruction.
It has excellent soundproofing characteristics.

Insulation for a bath with foil is good because, in addition to insulation, it can also serve as an additional reflector of thermal energy. This material is most in demand and popular in the construction of steam rooms and washing departments.

The main and biggest drawback of this insulation is that the foil is susceptible to corrosion.

Installation of foil insulation

The installation of the material is carried out with the reflecting side inside the room. This allows you to reflect and retain heat. The insulation is fastened end-to-end, and not overlapped, which significantly reduces construction costs. For fixing, use a construction stapler or small nails.

A gap of approximately 12-25 mm is left between the finish and the insulation material, which contributes to additional thermal protection. Visible joints are glued with a special aluminum (foil) tape. Installation work completed.

How to choose foil insulation

The price of any foil insulation is commensurate with the cost of alternative competitors with similar heat-insulating characteristics. However, with the help of insulation with foil, it is possible to save on such factors as installation time and space (insulation with foil is thinner than usual), as well as to obtain an environmentally friendly and refractory material that is used for thermal insulation of absolutely any objects. When buying, you should stop your choice on a heater that is covered with aluminum foil, and not sprayed, since it most likely will not work.

The choice of insulation

Insulation (polyurethane foam, fiberglass, polystyrene foam, mineral wool, polyethylene foam) can be covered with a metallized film or aluminum foil on one or both sides.

Why foil insulation is the right choice?

The material can be used at an ambient temperature of -60°..+150°.
Vapor permeability: 0.001% (the foil almost does not let steam through). Water absorption: 0.74% per day.
Ease of installation, low cost, environmental friendliness, good waterproofing properties, the ability to absorb noise and dampen vibrations in ventilation systems.
Creating the effect of "thermos".
Ease of installation and environmental friendliness of the material.

Disadvantage of foil: high thermal conductivity. That is why it is used not separately, but together with traditional heaters.

Thermal insulation for pipes with foil

Heating and sewerage

Rockwool cylinders are the best solution for heating pipes, ventilation ducts, air conditioners and sewer pipes. This flexible foil pipe insulation is resistant to chemical irritants and easy to install. Covered with a protective layer casings are strong and durable.

First, cut the desired length of the segment. Segments are joined close to each other.
Then, 2 fasteners are installed on each segment with a distance of 500 mm between them.
For vertical sections, retainer rings are used that prevent the cylinders from slipping over time.
For curved pipes, the cylinder is trimmed by trying on a hole along the pipe.

Technical thermal insulation - hollow cylinders made of stone wool and covered with a layer of aluminum foil. It is intended for isolation of thermal networks, industrial pipelines. Have a longitudinal cut for the most simple installation.

chimney

Chimney insulation is necessary to create good traction. The heat barrier prevents the formation of condensate, which means it protects the chimney from destruction.

Learn how to make a foil chimney cover for an iron chimney. You will need mineral wool (wire-stitched Rockwool mats work), foil, and fasteners.

Unwind the roll, separate the desired segment with a pruner.
Using fasteners and wire, wrap the pipe with insulation.
Wrap the top with aluminum foil and secure with zip ties. Instead of mineral wool, any other non-combustible material can be used.

Pipe insulation Energoflex

Has its strengths and weaknesses. The advantages include strength, moisture resistance, immunity to temperature extremes. The material does not cause difficulties during installation, has a small weight. The layer thickness can be from 9 to 13 mm, length - up to two meters. Suitable for pipelines with a diameter of 18 to 160 mm. Flexible material can be laid on areas with complex geometries.

If you buy rolled insulation, make sure that it is designed specifically for pipes before buying.
Rigid material in the form of semicircles has a size that allows you to put it on a pipe of a specific diameter.
A distance of 2.5 cm must be maintained between the wall and the aluminum foil.
The price of insulation is affected by both the thickness of the reflective layer and the base material.
There is a significant difference between aluminum spraying and aluminum foil. In the first case, the heat insulator will work less efficiently, its reflectivity is low.

Thermal insulation for pipes with foil: main technical specifications, Pipe Portal

Foil pipe insulation for heating pipes, sewerage, ventilation and chimneys. Thermal insulation of pipes foil - types and laying technology

Benefits of using foil insulation for heating pipes - theory and proven practice

The need for thermal insulation of engineering communications arises often. In order to avoid heat loss during the movement of hot water from the source of its heating to the end consumer, the pipeline should be insulated using, for example, a pipe insulation with foil as a material.

As practice shows, heat loss in the absence of insulation can reach 20 percent. In order to optimize efficiency heating structure it is necessary to insulate the line through which the coolant is transported. This work can be done independently, without involving specialists. At the same time, they use various materials, including liquid heaters, polyurethane foam (abbreviated PPU), mineral wool, penofol.

The need to insulate heating pipes

Due to the high cost of energy carriers, thermal energy must be used rationally, which means that only rooms that need it should be heated. If uninsulated pipes pass through a non-residential area, such as an attic or basement, then the heat is not being used for its intended purpose. This circumstance leads to a decrease in the performance of the heating system and an increase in the cost of purchasing fuel.

Insulation of the outer section of the heating main leads to a decrease in the likelihood of freezing of the coolant in the event of a sharp drop in temperature outside. True, freezing of the heat supply structure is unlikely, but traffic jams may appear.

For this reason, the insulation of the pipeline laid outside the building is a prerequisite for the operation of both internal and external sections of the heating system. Properly selected insulation thickness can protect the elements of the heating system from various kinds of damage, serious breakdowns and corrosive processes.

Selection of materials

Available for sale a large assortment insulating materials for heat supply lines. To make the right purchase, it is necessary to take into account the features of the room, its parameters and the technical conditions for operating the heating system.

The main factors influencing the choice of insulation:

the location of the pipeline to be isolated;
temperature of the coolant moving through the pipes;
characteristics of the heating main;
basic properties of materials intended for pipeline insulation.

When choosing, first of all, the following performance characteristics of heaters are taken into account:

heat resistance;
thermal conductivity;
fire safety;
moisture resistance;
thickness;
resistance to decay and exposure to microorganisms;
installation cost.

When purchasing materials for pipe insulation, you need to remember that the lower their thermal conductivity, the higher the thermal insulation performance. The degree of moisture resistance is reflected in the quality of protection of metal pipelines from corrosive processes and the formation of condensate.

The fire resistance of heat insulators must comply with fire safety requirements for heated rooms. To calculate the thickness of the material used, special formulas are used.

A variety of heaters for pipelines

In order to get the maximum effect from the insulation of the heating system, you need to decide on the choice of material for pipes laid in the apartment, in the attic or in the basement. These products are solid piece, soft roll and liquid. When buying, the parameters of the pipeline are taken into account in order to correctly select the dimensions of piece products.

All types of heat-insulating materials used for heating pipes can perform their functions due to the presence of air in them, and their difference lies in the convenience of installation work.

The most easily performed method of insulation is considered to be thermal insulation, called the "shell". It is produced in the form of semi-cylinders. Installation is carried out by combining the halves through the grooves. As a result, the desired result is ensured when insulating pipes in the basement or attic.

The following pipeline heaters are most in demand: mineral or fiberglass wool, insulation for pipes with foil, polyethylene foam, polyurethane foam, expanded polystyrene, penoizol.

PPU insulation for heating systems

Material for insulation of pipes made of polyurethane foam is:

In the first case, polyurethane foam is used to insulate short sections of pipelines in extreme cases.

To apply PPU spraying, you will need special equipment and a 4-atmospheric compensator. The insulation is firmly connected to the surface of the pipes. But this material does not tolerate ultraviolet exposure, so it must be protected with winding or aluminum foil. When applying spraying, it is necessary to use protective clothing.

The rigid type of PPU insulation is durable and at the same time light, has a low coefficient of thermal conductivity and is used for individual circuits. Of its advantages, it should be noted that it has increased resistance to moisture. The material is environmentally friendly and completely non-toxic. It is mounted around the pipeline in the same way as the "shell".

Foil insulators for heating systems

If you need to make a decision regarding the material, the best choice would be to use a foil pipe insulation. Thermal insulation is considered effective if it allows not only to retain heat, but also to reflect it. In this case, it is preferable to use materials with aluminum foil.

This polished material has such high reflective characteristics that it allows you to maintain the temperature of the coolant and keep the efficiency of the heating structure at the maximum value. The fact is that in this case, the flow of thermal energy emanating from the pipes is reflected back.

In addition, the foil insulation for heating pipes does not let in the cold coming from the outside and demonstrates excellent hydro and vapor barrier. In the process of its manufacture, the main heat-insulating material is applied to the foil layer - it can be polystyrene foam, polyethylene foam or mineral wool.

This type of thermal insulation of different thicknesses for pipelines passing through living quarters, a basement or an attic is produced in the form of a "shell", slabs, rolls, mats, canvases.

Pipe foil insulation can be operated at an ambient temperature in the range from -60 ° C to + 150 ° C, therefore it is used in the arrangement of external sections of heating mains. Since foil for pipe insulation has a high degree of thermal conductivity, it is not used separately.

The use of foil thermal insulation for pipes

According to experts, the most in a simple way thermal insulation of pipelines in the basement is considered to be the use of mineral wool, which is covered with a layer of foil, while the thickness of the wool reaches 50 millimeters, and the reflective layer is 10-30 microns.

Before proceeding with the insulation of pipes in the attic or basement, you need to study the operating conditions of the materials. For example, foil with foamed polyethylene is brittle and subject to deformation under external influences. Strength indicators can be improved if thermal insulation with pipe foil and foam is preferred.

In turn, basalt insulation has many characteristics in common with mineral wool, but it is heavier because it has a higher density.

It is convenient to install self-adhesive insulation. If the foil is damaged, use aluminum tape. Mylar film with foil and polyethylene foam do not reflect infrared radiation, so such material must have a significant thickness of the foil layer.

The main nuances of using heat insulators

Before buying rolled insulation for heat supply pipes, you need to make sure that its performance allows you to use this material in an attic or basement.

When the insulation is rigid and made in the shape of a semicircle, it can be used for pipe products of a certain diameter. Between the wall and aluminum foil, you need to leave a distance of 25 millimeters.

The cost of a heat insulator is affected by the thickness of the reflective layer and the material from which its base is made. There is a significant difference between aluminum foil and aluminum sputtering. The latter option makes the functioning of the heat insulator less effective with little reflectivity.

It is not at all necessary to buy industrial foil pipe insulation. You can independently wrap the layer of thermal insulation laid on the pipe with foil if the pipeline is laid in the attic or basement. Such material is produced in rolls or in the form of hollow tubes.

The foil is placed face up. Between the foil layer and the pipeline, a gap of 10 -20 millimeters must be left.

Independent installation of thermal insulation

Work on the insulation of heating pipes using heat-insulating polystyrene foam shell is performed as follows:

Halves of the material are put on the pipe and their displacement relative to each other is ensured - it is required for an overlap of 10–20 centimeters in size.
Semi-cylinders should be fastened in advance with adhesive tape. If you need to apply a surface protective layer, it is attached at the very end.
In order for the shell to more reliably adjoin the pipeline, the joints must be glued with adhesive tape.
When it is necessary to isolate heating pipes at the turns of the main, shaped types of shells are used.

In many ways, the choice of materials for insulating the elements of the heating system depends on the operating conditions of the heating main and its structural device. The work on thermal insulation is simple and, if desired, any home master can perform it.

Foil pipe insulation: thermal insulation with foil for heating pipes, insulation, insulation

Foil thermal insulation: types and properties. Wall preparation, installation and fixing

To date, foil thermal insulation for pipes is enough the new kind materials and works, which, however, are becoming more and more popular, both among professional builders and among a simple layman who decides to conduct insulation in the house on his own.

What can the material be used for?

Insulation is easily used in many thermal insulation works, in our case it can be:

Thermal insulation of floors throughout the house, including in cold rooms.
Thermal insulation of various heating equipment.
Work on soundproofing and thermal insulation of walls and partitions.
Thermal insulation of the roof and especially the attic.

Foil on the roof

The properties of the material make it possible to use it to increase the heat transfer of the radiator in the room, for this it is enough to place a sheet of material behind the radiator with your own hands, and the amount of thermal energy will increase.

In what types of rooms is foil material suitable?

In addition to the fact that we can perfectly insulate a living space, the material is suitable for:

Full heat and sound insulation of various rooms with utilities.
Insulation of the pipeline and air duct in the boiler room.
Works in rooms with high, and most importantly, with constant humidity, these are baths and saunas.
Hallway and corridor, where it is ideally insulated front door and reduces heat loss.

Material Features

First of all, consider the components of the material, because foil thermal insulation is a layered and combined material, which includes:

It is the moment of combining these materials into one that gives us the opportunity to use all the excellent thermal insulation properties of the foil material. Here are simple figures that fully prove the high efficiency of using the material for any thermal insulation purposes - thermal energy is reflected in the room with an efficiency rate of 97%!

One layer of our material can replace a 15 cm brick wall in terms of resistance to heat transfer.

And if we translate all this into an area, then we definitely save several squares of the area of \u200b\u200bthe room.

In addition, this product has water-repellent properties, this is possible due to the cellular structure of the material. As a result, it is possible to avoid the formation of condensate, in other words, when purchasing a material, we also buy a vapor barrier. As we said above, one of the rooms where we can use foil insulation is a sauna or bath.

The structure of the foil heat insulator

High sound insulation provides the material with great popularity not only in domestic conditions.

And, of course, foil insulation, it is also high level environmental friendliness, which is important today. It does not have any harmful effects on the body.

Insulation is sold in two types:

In sheets, which is convenient for small spaces.
In rolls.

Types of foil material

Today, there are several types of material on the market, and each has its own characteristics and applications.

The material is coated with a metallized film.
foil layer.
Basalt material.

The material with a metallized coating has excellent thermal conductivity, but cannot be used in rooms with high humidity. Corrosion to which any metal coating, exclude this type from use in baths, saunas, bathrooms.

The material covered with foil can be used absolutely in any premises. It works especially well on building envelopes, and this, in turn, allows you to reduce heating costs in winter. Moreover, air ducts, and especially pipelines at sufficiently low temperatures, require insulation without fail.

Heat insulator shells for pipes

But if we need good protection in the event of a fire hazard of engineering networks, foil basalt thermal insulation is ideal, which heat loss reduces dramatically!

An important point is always the fact that the material is not affected by aggressive environment, biological contamination, fungus and mold do not appear on it. Here you can also note its durability, and the service life is calculated in decades!

This is the best thermal insulation for foil pipes, convenient, easy to install and completely protecting them in the cold season from freezing and excessive loss of thermal energy.

The combination of properties in basalt wool

The type of foil material based on basalt wool is also interesting in that aluminum foil and wool complement each other's features.

Excellent insulation based on basalt wool

The foil has a reflective surface and moisture permeability, which protects the cotton wool from moisture ingress, and the cotton wool ensures the bonding of the entire material structure.

The installation work is quite simple, besides, there is an instruction on what and what follows in order, but first let's talk about the tool.

So, we need:

Wall preparation

In order to ensure proper operation with foil material, we need to provide a small gap between the insulation and the wall. We take into account that the material is completely waterproof, which means that condensation will form.

Installation and fasteners

We fix the guide strips on the wall, 1-2 cm thick, we already fasten the insulation itself along them. If this is a roll, then the principle of operation will be the same as with wallpapering.

We fix the insulation with staples or special nails, carefully glue the joints with special foil tape. You can buy a little more than necessary, since the price allows, and the leftovers can always be used in pipe insulation.

The joint must be glued

In principle, there is absolutely nothing complicated in the installation work, the main thing to remember is that the reflective surface of the foil should be directed into the room, because this is the essence of heat reflection!

Undoubtedly, this material is an excellent way to keep the heat in the house and significantly reduce heat loss. However, its use becomes many times more effective if work is carried out in a complex and with external thermal insulation.

Foil thermal insulation: do-it-yourself video installation instructions, features basalt insulation, for pipes, price, photo

Foil thermal insulation: do-it-yourself video installation instructions, features of basalt insulation, for pipes, price, photo

Insulation with foil - vapor barrier as a bonus!

Features of heaters with foil when buying

Let's look at the types of foil thermal insulation depending on the raw material, its main advantages and nuances right choice. Depending on the main heat-insulating material used in production, foil-laminated technical insulation is divided into:

Basalt- a real bestseller in the market of mineral wool insulation with a reflective metallized coating, made from basalt rocks. Natural foil insulation, the price in Moscow of which is available only in our price list, has a whole range of advantages. The main advantages of technical insulation include high fire resistance, environmental friendliness, durability (at least 50 years), stability of parameters during operation.

fiberglass- made from glass industry waste, quartz sand and binder, therefore it has an affordable price. The cost of foil thermal insulation is up to 3 times lower than the basalt counterpart. The insulator has excellent thermal insulation and acoustic properties, low weight and ease of installation.

Styrofoam- Made from extruded polystyrene. Such technical insulation is absolutely not afraid of direct contact with moisture and is indispensable when installing underfloor heating systems under a concrete screed. Energy-efficient, practical and easy to install - all these properties are combined in a polystyrene heat insulator for the floor with foil. The price of products depends on the thickness and modification of the heat insulator.

Polyethylene- made of foamed polyethylene with a thickness of 2 to 10 mm. Foil insulation can be bought in Moscow in compact rolls, convenient for transportation. It is distinguished by minimal thermal conductivity, zero water absorption and is an ideal solution for installing a warm floor under a screed, insulating water supply and sewage pipes.

rubber- made on the basis of foamed rubber with an adhesive layer on the mounting side. Resistance to high temperatures, moisture, chemicals, ultraviolet, durability and ease of installation - all this is an elastomeric self-adhesive insulation with foil. The price of products allows you to save on the purchase and installation of an additional reflective layer.

Installation of thermal insulation for pipes with foil can be done in one go, while the installation of a separate technical insulation and a heat-reflecting surface will increase the complexity and cost of thermal insulation work by 2 times.

The main disadvantage of a puff cake made of thermal insulation and foil will be delamination and rustling at the slightest wind and draft. If you use a ready-made factory-made foil pipe thermal insulator with a firmly glued reflective layer, you can avoid unpleasant situations.

Special construction skills are not required to mount a self-adhesive foil insulation. The price of insulation with a ready-made adhesive layer is slightly higher than analogues without it, however, it will save on the work of the installation team, since you can install it yourself.

How to choose the perfect insulation with foil?

Choose technical insulation in Moscow, "dressed" in foil on both sides. So you save yourself the dilemma of which side to put the foil insulation on the floor or other surfaces.
Try to buy in Moscow foil insulation for pipes and technical facilities with a high-quality foil layer, and not just aluminum coating, otherwise there will be no reflection of infrared rays.
Pay attention to the degree of polishing, which directly affects the reflective properties of aluminum. The higher the parameter, the more heat the pipe foil insulation will reflect from its surface.

Foil insulation (insulation) - price, buy in Moscow

Do you want to buy foil insulation in Moscow? The company GEOTEHIZOL offers insulation with foil at great prices! Quality assurance!

Thermal insulation of pipelines is one of the important measures to ensure the durability of steel (VGP; ES; BSH) and polymer pipes.

Section materials

→ Rockwool cylinders	→ Styrofoam shell
→ K-FLEX	→ PPU shell
→ K-FLEX PE	→ Basalt mats
→ FOAMPIPE cylinders	→ ProRox PS 960
→ FOAMPIPE bends	→ Jackets for pipes with insulation
→ FOAMPIPE tees	→ Aluminum tape
→ Foampipe Sewer sewer insulation	→ Band clamp
→Thermal insulation boxes Foampipe TK	→ Fiberglass

The thermal insulation of heating pipes is no less important than the thermal insulation of the basement, walls or roof of a building. The main reason for this is the uninterrupted supply of water during the cold season, so it is simply necessary to insulate the water supply.

How is the correct thermal insulation of heating pipes?

Depending on the material used, thermal insulation for pipes differs in structure and production technology.

Selection and installation of thermal insulation of pipes is a matter only for an experienced specialist. Otherwise, over time, you will need to redo the work done again.

To ensure a long period of operation of the pipeline, it is always necessary to take into account the climatic conditions in which the operation of heating or water supply networks will be carried out, and to trust the installation of the material only to professionals.

Thermal insulation of water supply pipes is the most important stage in the creation of water supply or sewerage systems. Proper thermal insulation of pipes guarantees the normal functioning of the pipeline even in the cold season. Haste and savings on insulation leads to the need for regular repairs.

For thermal insulation of pipelines, only quality materials. It should also be taken into account that it is important not only to protect the pipe from the effects of cold, but also to provide protection against corrosion by creating an anti-corrosion layer.

It should be remembered that the thermal insulation of pipes must have a long service life so that there is no need for frequent replacement. Depending on the passage of the pipeline (external or underground), different types of pipe insulation are used.

For indoor applications, it is optimal to use ROCKWOOL thermal insulation cylinders. Products from a well-known manufacturer, have high quality and unique properties. High requirements for technical insulation products allow Rockwool cylinders to be No. 1 today. They are made from mineral wool on a synthetic binder 1 meter long. They can be of various diameters from 19 to 273 mm. The thickness of hollow products can be 30, 40, 50, 60, 70 and 80 mm. Cylinders can be produced with additional aluminum foil coating.

For outdoor use, Rockwool mineral wool cylinders can also be used, but with subsequent shelter in the form of protective shells. They protect products from atmospheric precipitation and damage to thermal insulation. It is also possible to use mineral wool mats Tech mat and Wired Mat.

Thermal insulation for pipes can also be made with PPU shells or polystyrene foam shells. For in-ground applications, this is the most common insulation option. In any case, all necessary measures to protect pipes are recommended to be carried out strictly according to the project, which specifies certain materials necessary for insulation.

Thermal insulation of heating pipes is a reliable protection for pipes. The efficiency of heating mains depends on the heat-insulating material, because without it, heat loss occurs, especially in winter. All this is reflected in the wallets of our citizens.

Acceptable prices for pipe insulation

Today, you can buy thermal insulation for pipes at various prices. When choosing one or another material, the buyer is often interested in what determines the price of insulation for the pipeline. The answer to the question is simple.

The cost of the material is affected by the following:

√ producer country - imports are always more expensive than domestic goods, although they are the same in quality;
√ the density of the material - the denser, the more expensive;
√ thermal insulation thickness;
√ the ratio "pipeline insulation - price" depends entirely on the structural material;
√ Bulk purchase is always cheaper than retail.

However, when buying thermal insulation for pipes, you should choose only the product that is best suited for these specific operating conditions. In this case, having paid once, the buyer will enjoy the uninterrupted operation of the pipeline for a long time.

Dealing with the problems of insulation during the repair of an apartment, the construction of a house, a bathhouse, other utility or utility buildings, any owner always faces the problem of choosing the optimal thermal insulation materials. It is good that in our time the range of them on sale is quite wide. But this variety of choice can play a “cruel joke” with an ignorant person - it is no wonder to get confused in such an abundance and make a mistake. Therefore, when going to the store for a purchase or about to place an online order, the consumer should already have an idea about the characteristics of the material, its features, applications and basic installation techniques.

Advantages and disadvantages of heaters with foiling

Any of the insulating materials has its own insulating qualities due to the foamed, porous, fluffy, fibrous or other base, which allows you to create and retain an air layer. Well, the air itself has an extremely low thermal conductivity, and in total a thermal insulation layer is obtained, the transfer of thermal energy through which, if not completely excluded, is significantly reduced. It is clear that any material has its own thermal resistance indicators, and the general capabilities of the insulation also depend on its thickness.

1 - mineral wool.

2 - foamed polyethylene.

3 - expanded polystyrene.

4 - foamed concrete.

The created "thermos effect" in the room allows much better to keep warm in winter, and vice versa - cool in summer.
Increasing the efficiency of thermal insulation entails a reduction in energy consumption for heating needs.
The foil surface itself is a good barrier against the penetration of moisture and water vapor, which in some cases makes it possible to do without an additional waterproofing layer.
Foiling does not in any way reduce the thermal insulation qualities of the material, on the contrary, it enhances them and allows the use of heaters of much smaller thickness, which is sometimes extremely important in tight spaces.
Any type of foil insulation is also a good sound insulator.
Applying foil to the thermal insulator does not pose any threat from an environmental point of view. On the contrary, it often becomes a reinforcing barrier against the penetration of the smallest particles of material into the space of the room.
The material is easy to install, which does not require any special professional skills. Moreover, it can, if necessary, be dismantled and then installed in the same or another place.
The form of release of the material - rolls or panels, is very convenient for installation work.

Among the shortcomings, the following can be noted:

Aluminum is still subject to gradual corrosion, which is why it begins to become cloudy, and over time its reflective qualities weaken somewhat.
The metal layer can get very hot, and therefore, during installation, it is necessary to provide a small air gap between the insulation and the surface finish. By the way, the same air gap will contribute to the ventilation of the aluminum coating, and the absence of moisture on the surface of the foil will greatly reduce the aggressiveness of corrosion processes and thereby increase the service life of the material.

Prices for thermal insulation materials

Thermal insulation materials

The main types of insulation with foil

Now it is worth considering in more detail the main types of foil insulation, their characteristic features and applications. In private construction, materials made of foamed polyethylene, mineral wool or expanded polystyrene are widely used. There are other materials, for example, basalt-fiber-based plates with foil, but this material is expensive, and has a specific purpose - for thermal insulation of technological lines, power plants, special industrial facilities, etc.

Foil insulation based on polyethylene foam

This is one of the most common and easy-to-use types of foil insulation. It is a layer foamed by a special technology, covered with one or two layers of foil 10 ÷ 15 microns thick.

Three types of material are produced:

type A - one-sided foiling;
type B - the foil is applied on both sides, which is sometimes required to enhance the thermal insulation properties;
a type WITH – With foil on one side, on the other - a self-adhesive layer covered with a protective film, which, if necessary, facilitates the process of mounting on the ceiling or on vertical surfaces.

There may also be differences in the type of source material used:

In inexpensive brands, ordinary polyethylene is used H PE, which is subjected to repeated foaming during the production process with the creation of a closed gas-filled porous structure. The disadvantage of this material is its low resistance to deformation loads, the property of gradual shrinkage.
The best performance has a heater based on specially processed, "cross-linked" polyethylene (PPE). Its density is somewhat higher, but due to the transverse intermolecular bonds, it not only withstands mechanical stress better, but also seeks to recreate its original shape after removing the dynamic load. When acquiring material, this nuance must be taken into account.

Some types of such heaters may additionally have a fiberglass reinforcing mesh in their structure.

You can find many types of heaters based on polyethylene foam. Certified products of the Penofol, Ecofol, Izoflex, Izolon, Germaflex, and Folgoizol brands enjoy well-deserved popularity. Some characteristics of these materials are given in the table:

Material name	Penofol	Izolon	Ecofol	Isoflex
Miniature
	0,049	0.04	0,049	0,035
Density, kg/m³	35	26 ÷ 33	33	35 ÷ 45
Heat reflectivity	at least 90%	up to 95 ÷ 97%	at least 80%	at least 90%
Operating temperature range	from -60° to +100°С	from -80° to +80°С	from -60° to +90°С	from -60° to +80°С
Vapor permeability of the material, mg/m×h×Pa	0,001	0,001	0,001	0,001
Release form	Thickness 2, 4, 5 mm with foil layer 14 µm, rolls 1.2 × 30 m; thickness 8 and 10 mm - rolls 1.2 × 15 m	Web width - 1.5 m, thickness 2, 3, 4, 5, 8 and 10 mm, length per roll, respectively, 200, 170, 130, 100, 80 and 50 m. Individual sheets 15 mm thick, dimensions 1500 × 2000 mm	Rolls 1200 mm wide, insulation thickness 2, 3, 5, 8 and 10 mm, length 25 and 15 m.	Rolls 1200 mm wide, insulation thickness 2, 3, 5, 8 or 10 mm, length 25 and 15 m. Foiling thickness - 10 microns.

Foil polyethylene foam finds the widest application in repair and construction work. Sheets or strips of insulation are attached to the surface in any convenient way, but in such a way as to prevent a strong violation of the integrity of the foil (for example, it is permissible to fasten it with brackets construction stapler). As a rule, the sheets are laid end-to-end, which is then glued with foil tape to provide a single integral reflective and insulating surface.

Floor insulation. It is used as an additional or even main (for example, in multi-storey buildings) thermal insulation layer, which can also play the role of a waterproofing layer. It is laid with the foil part up before laying the floor finish.

Thermal insulation and additional sound insulation of walls and ceilings, especially in conditions where the size of the room does not allow the use of thicker types of insulation (a classic example is a narrow balcony or loggia). Fastened with the foil side towards the room. Be sure to provide a gap between the foil and the finish coating (lining, panels, etc.). It is usually fixed on the surface with battens (counter-lattices), which become the basis for cladding.

Insulation of roof slopes. Can be used alone or in combination with other materials. In any case, foil-wrapped polyethylene foam is attached last towards the attic space, and on top of it, observing the gap, the sheathing is mounted.

. The foil layer simultaneously plays the role of a reliable vapor barrier, protecting the wall material from waterlogging. True, in the conditions of a steam room, where there can be critical high temperatures, the use of the material is not always justified due to the limited temperature range of its operation.

Thermal reflective screens behind radiators. Such a measure prevents thermal energy from being wasted on unnecessary heating in the outer wall, redirecting the infrared flux back into the room.

Video: comparative tests of foil insulation polyethylene foam

Mineral wool with foil

The form of release of the material is rolls, pre-compressed or sectional, or individual plates.

Name of insulation	ISOVER Sauna	Rockwool Sauna Butts	Knauf Insulation LMF AluR	PAROC
Miniature
Thermal conductivity coefficient, W/m×°С	0,041	0,036	0.04	0,039
Density, kg/mm³	11	40	36	32
Thickness	50 or 100 mm	50 or 100 m	20 or 50 mm	50 or 100 mm
Release form	Rolls 1200 mm wide, 12.5 or 6.25 m long, with triple compression of the material.	Packs of 10 or 5 mineral wool foil boards with dimensions 1000 × 600 mm	Rolls 1000 mm wide, 10 or 5 m long	Mats 1200 × 600 mm or rolls up to 5 m

Due to the fact that the upper temperature limit of the operation of mineral wool exceeds 300 degrees, it is the best suited for ceilings in baths. In principle, this is the main purpose of such a foil insulation, although, of course, nothing prevents it from being used for other purposes, for example, for roof thermal insulation.

In any case, slabs or mats are placed between the batten guides. The step of the guides is initially set to 10 ÷ 20 m m less than the width of the insulation - so it fits snugly into the niche intended for it. The density of foiling is usually such that the insulation can be fastened with brackets to the aluminum layer. The joints must be glued with foil tape to maintain the effect of hydrovapor barrier. A 20 ÷ 25 mm air gap is left between the insulation and the wall (ceiling) cladding.

Mineral wool insulation is also available in the form of collapsible cylinders or half-cylinders - these products are excellent for thermal insulation of pipelines.

The thermal resistance of mineral foil wool allows it to be used for additional thermal insulation of boilers, boilers, storage tanks, and other heat engineering devices.

Mineral wool prices

Mineral wool

Video: thermal insulation of the bath with foil insulation "ISOVER Sauna"

Styrofoam mats with foil

Not so often, but still another type of foil insulation is used. We are talking about plates (mats) of expanded polystyrene with aluminum foil on one side.

Such products can be produced in single mats, or in rolls of several meters, made in sections, like a tractor caterpillar.

The main purpose of such insulating foil materials is both independent and in the "" system. A layer of aluminum foil reflects the heat flow upwards to warm up the finish coating so that expensive energy is not wasted on heating massive floor slabs or a subfloor laid on the ground.

Fastening the "warm floor" pipe to the mat

In conclusion of the review, one very important remark should be made. All of the listed advantages of foil insulation will be valid only if the material is of high quality. The fact is that some unscrupulous manufacturers are limited to applying a thin aluminized spraying. This is far from foiling, although outwardly the materials may be similar. A thin deposited layer is not able to adequately reflect the heat flow - infrared radiation for the most part will pass through it. And such a “decorative” shiny layer will also not become an obstacle to the penetration of moisture and water vapor.