Rules for choosing a foil for warming a bath: material characteristics and tips. The sheathing of the steam room with foil Is the foil plastic suitable for the bath

Foil for a bath, the price of which is quite acceptable, can be used as reflective high-temperature insulation in those rooms that are operated only at high temperatures: saunas, baths, water heaters and boilers, air conditioning and ventilation systems. In addition, it is used in ceilings and roofs, attics and attics, floors and walls of buildings. Today, many homeowners are trying to buy foil for a bath specifically for installing a "warm floor" system with electric and water heating: here the material is laid over a layer of insulation made of expanded polystyrene or mineral wool.

Composition:

The foil is composed of pure aluminum and has a high level of heat resistance and durability. The material is offered in rolls with an area of 10m2 and has an optimal width of 1000 mm for installation. The material has an ordered network of metal atoms, which are located very tightly to each other, which guarantees gas tightness. The foil is non-toxic, since during the manufacturing process it becomes sterile and subsequently does not become a favorable breeding ground for bacteria.

Usage technology:

The installation of the material is carried out in various ways. When installing on a wooden crate, a stapler or small nails are used, and if the foil sheets are attached to each other, foil tape is used. In order for the heat to be reflected more efficiently, it is necessary to provide for an air gap of 3 cm between the sheet of material and the topcoat, which is most often used in saunas and baths. Also, in the premises, a heater for a bath with foil can be used.
Do not forget that aluminum conducts current well, therefore, during the installation of electrical wiring in the structures of baths, saunas or residential buildings, complete insulation of electrical equipment is required before using foil.

Certification:

The material has all certificates of conformity and fire permits.

Timely and high-quality insulation of saunas and baths can provide reliable protection of finished structures of premises from high humidity, fungus and further destruction.

Foil insulation for a bath contributes to efficient energy saving, which leads to the accumulation of 98% of the heat in the room. This allows you to save on fuel and significantly speed up the heating process of the steam room.

What is foil for?

Foil for a bath is the thinnest aluminum layer that is used as is or in an effective combination with fiberglass, roll insulation or kraft paper. The thickness of the web is from 30 to 300 microns.

Aluminum foil is characterized by high thermal conductivity, therefore it is a powerful reflector of heat generated by the firebox. Insulation of this type does not absorb infrared radiation, but reflects it, effectively distributing it around the entire perimeter of the room.

Thanks to this, all the heat generated is accumulated inside the steam room. Among other things, such a material is successfully used as a sound insulator.

According to experts, this is the best thermal reflector designed for modern baths, capable of reflecting up to 98% of the infrared radiation emitted by the firebox.

Aluminum foil is an effective sealant that does not allow steam and water to pass through, which means that it prevents moisture from escaping outside the premises. The foil-lined steam room heats up faster and cools down more slowly.

Features and Benefits

Taking into account the operational features of various bath rooms, foil insulation must meet the following requirements:

High vapor and moisture resistance;
Excellent refractory properties;
Resistance to corrosion processes;
High level of thermal reflectivity (up to 98%) due to the mirror-like top layer;
Sufficient thermal conductivity;
Resistant to high temperatures;
Lack of toxic substances in the composition.

High vapor barrier characteristics prevent steam from escaping from the heated room and reduce the likelihood of condensation. This ensures a long service life and an excellent appearance of the insulation.

Foil for a bath has the following advantages:
Resistance to deformation and plasticity during heating;
Maintaining the original consumer characteristics;
Inertness to ultraviolet radiation;
Protection of premises from the formation of condensation, fungal formations and harmful organisms;
Resistance to chemicals;
Simplicity and availability in carrying out installation work;
Durability, practicality and durability;
Hygiene and environmental friendliness;
Affordable cost.

Aluminum foil is able to withstand high temperatures up to 150 degrees, which, in combination with increased reflectivity, contributes to the effective retention of the generated heat indoors.

Such unique characteristics allow you to create the effect of a thermos in a bath, so the material is ideal for insulating wall, ceiling and floor surfaces in steam rooms and technical rooms.

Foil varieties

Depending on the type of application and auxiliary components included in the composition, the material is divided into several types:

The material is represented by a thin aluminum layer up to 300 microns thick, roll width up to 150 cm. Designed for a wide temperature range, therefore it is used for steam baths and saunas. Considering the high probability of deformations and breaks during installation, it is recommended to apply foil on a refractory heat-insulating base with fixation on metal staples.

It is a cellulose base with an aluminum top layer. The paper can withstand high temperature conditions from 50 to 125 degrees, therefore it is suitable for auxiliary and technical rooms of baths.

A material consisting of a fiberglass base and an aluminum layer. It has high sound, heat, steam and moisture insulating characteristics, resistant to decay and mold.

A special type of insulation based on expanded polystyrene foam covered with a thin aluminum layer. It is presented in rolls and sheets. The advantages of such a material are resistance to high temperatures, excellent fireproof, thermal insulation characteristics and ease of installation.

The basis of the material is mineral wool covered with a thin layer of aluminum. Possesses high heat and vapor barrier properties.

Plates are easily installed on ceiling and wall surfaces, therefore they are intended for use in any room of the baths.

Criterias of choice

The most effective option for warming bath rooms is aluminum foil.

When choosing foil insulation for a bath, it is important to follow simple recommendations:

The main criterion for choosing foil in rolls is the thickness of the aluminum layer, which determines the vapor barrier. This figure is from 0.007 to 0.2 mm. The greater the thickness, the more reliable the protection.
A good thermal insulator should be 99% aluminum.
When choosing a reflector made of aluminum foil, pay attention to its marking. So, the letter designation "M" marks the soft annealed material; "T" is a solid, unannealed base.
High-quality insulation must have all the necessary quality certificates and conclusions. Therefore, it is recommended to choose products from reliable and trusted suppliers.
Installation of foil cladding is carried out using adhesive tape on a metal basis (to hide the joints), as well as galvanized nails, screws and staples.

How to cover a bath with foil yourself

Thermal insulation of a wooden bath is carried out by the method of caulking. But mineral wool can be used as additional insulation.

The use of foil sheathing is an important procedure that helps to reduce heat loss in rooms. In this case, the material is used as a heat reflector, which is mounted on walls made of logs or boards. Next, a wooden lining is installed.

The sequence of installation work for warming the bath with foil:

A wooden frame made of thin strips with a cross section of 5 × 5 cm is installed on wall or ceiling surfaces. The strips are fixed using self-tapping screws. If necessary, a heater is laid - mineral wool.
Foil sheets are mounted on the crate with a reflective layer inward overlapping (18-20 cm) with fixation on galvanized nails or metal staples. With a significant width of the material, its fixation is carried out not only along the edges, but also in the middle.
To prevent deformation or rupture of the material, the joints are glued with adhesive tape on a metallized base.
The fixed foil is sewn up with clapboard, while leaving the required technological gap of 1.5 cm for proper air exchange. This will provide better thermal conductivity of the material and high-quality reflection of infrared radiation in the room.
The lining is fastened to a wooden lathing installed on top of the foil. For this, strips with a thickness of 2 cm are used with fixation on self-tapping screws.

Thermal insulation of steam rooms with the use of foil reflectors allows you to save up to 30% on raw materials for fireboxes, as well as extend the life of wooden buildings of modern baths, preventing rotting, the development of mold and pathogens.

Aluminum foil for a bath: which is better to choose, characteristics and installation

Insulation of this type does not absorb infrared radiation, but reflects, effectively distributing it. Aluminum foil is characterized by high thermal conductivity, therefore it is a powerful heat reflector.

All the subtleties of using foil in a bath for insulating walls and ceilings

An ideal sauna means that the steam room will warm up quickly and keep it warm for a long time. To achieve this, one has to either install a log house with thick walls, or additionally insulate the walls with a ceiling. The second method is cheaper, but not every thermal insulation material is able to withstand the bath conditions. Traditional heaters will not work, but aluminum foil for a bath is exactly what you need. However, there are pitfalls here.

What is the use of foil in a steam room: "divorce" or indisputable benefit

Some argue that there is zero benefit from foil-clad insulation in the bath, while others - that this is an ideal heat insulator. Some craftsmen simply use foil, while others prefer to combine it with heat-insulating material. These discussions are endless, but the choice must be made.

The principle of the material

Heat is transferred in the steam room due to:

On the one hand, aluminum foil has high thermal conductivity, but on the other hand, it reflects almost all infrared radiation that hits it.

The first point is often mentioned by opponents of this material. But they forget to say that the foil is only able to heat up from the sheathing or the walls of the bath. First, the lining should be heated, and only then will it transfer part of the heat to aluminum. The foil surface itself will give off thermal energy to the walls.

Important! The high thermal conductivity of the foil will play a negative role only if its area of contact with the skin is large. The lathing for the lining is not able to give off a significant amount of heat due to the minimal contact between these two building materials.

With infrared radiation, everything is quite the opposite, this is where the fun begins. It is he who is emitted in the bath by hot stones and a stove. However, due to its properties, the foil reflects infrared rays almost completely back into the room. Therefore, it is more correct to call it a heat reflector, and not a heater.

There is one more nuance - a hermetically laid foil layer is an excellent vapor barrier. As a result, the heated steam remains inside the room, increasing the temperature of the sauna air. The bath heats up faster, and after the firewood burns out, it cools down more slowly.

Benefits of using

Among the advantages of using foil in a bath, it is worth mentioning:

Lack of harmful secretions and hygiene.
Preservation of the coating upon prolonged exposure to excess moisture and high temperatures.
Simple installation.
Immunity to decay.
Improving sound insulation.
Fire resistance and heat reflection of the material.

However, if the foil layer has holes, then its usefulness will sharply decline. It's all about condensation. It will fall out not on the outside of the foil inside the bath, but on the inside, facing the wall. The accumulation of moisture will surely lead to the appearance of mold and wood decay.

Which foil material is better to choose for a bath

In addition to the usual roll foil, there are a lot of different foil materials designed for wall insulation. But not all of them are applicable in a bath, where there is high temperature and humidity. It is extremely important here to choose the right and harmless heat insulator, otherwise a visit to the steam room can lead to health problems. An additional layer makes the foil more durable or increases its thermal insulation characteristics.

You can insulate the bath:

kraft foil (paper-based);
foil-clad fabric (on fiberglass);
foil insulation (on foamed polyethylene).

The first option is a complete analogue of standard aluminum foil, only with a reinforcing layer of paper. The second is the most durable and fire-resistant of all, and the third, thanks to expanded polyethylene, creates an additional layer of classic thermal insulation.

Advice! Experienced craftsmen recommend sheathing the walls and ceiling of the bath near the stove exclusively with foil on fiberglass. It is durable, harmless and can withstand temperatures up to several hundred degrees.

The polyethylene backing easily transfers the heat of the steam room. But this foil material should not be sewn on the walls near the firebox. In the heat of a red-hot stove, it will inevitably begin to melt.

There are also mineral wool-based foil insulation on sale, but it is not recommended to use them in a bath. Some of them contain formaldehydes, which begin to evolve when the temperature of the material rises, while others, when wet, lose all their thermal insulation properties.

Even thick aluminum foil without a backing can be easily damaged during installation. It should be used in a bath only as a last resort. It is best to choose the option on fiberglass, produced in three types:

"A" with one-sided foil (operating temperature from -40 to + 150 ° C).
"B" with foil on both sides (operating temperature from -40 to + 300 ° C).
"C" with an adhesive base and one layer of foil (operating temperature from -40 to + 80 ° C).

All of these materials are sold in rolls of various sizes and thicknesses. They can be easily cut to the required size. And their fastening in the bath is done with galvanized nails or staples.

The nuances of installing foil and foil insulation in a sauna

The choice of foil-clad heat insulator depends on the material from which the bath is built. In some cases, just aluminum foil is enough, while in others it is recommended that sheathing be done only with the use of insulation.

Option # 1: Insulation of a log house

If the walls of the bath are made of thick logs, then covering them with foil is a waste of money. Here, the quality of caulking is more important, and it is simply pointless to additionally insulate the log house. In this case, there will be little positive effect from the thermal insulation layer.

In a log sauna, foil-clad insulation should only be used for lining the ceiling. Above, there will be at least some sense of it, especially if the ceiling is made thin and without an insulating layer on top.

You can also cover the walls around the stove with aluminum foil without a backing. Such a screen will reflect heat in the form of infrared radiation into the steam room, instead of wasting it on unnecessarily heating the wall behind the stove.

When lining the ceiling, foil insulation is laid with a reflective layer downward, with an overlap and with a small, 5-10 cm, approach to the walls. The joints must be glued with special aluminum tape. It is very important to create an airtight layer without the slightest trapdoor for steam.

After installation, the foil can be left as is. So condensation will definitely not accumulate on it. But from an aesthetic point of view, it is better to cover it with clapboard. To do this, you need to fill a crate of 40x40 mm bars, to which wooden planks will be nailed.

Option # 2: Sheathing a brick or frame structure

If the walls of the sauna are made of bricks or frame technology is used, then it is imperative to insulate them with foil-clad thermal insulation material. Otherwise, the heat in such a bath will not last long.

The sequence of work in this case is absolutely identical to the technology used in a log cabin. Only sheathing with foil is made round the entire area of the walls and ceiling to make a thermos. It is necessary to block all possible ways of heat release to the maximum.

Advice! When insulating a bath with aluminum foil, special attention should be paid to windows and doors. The material to be laid should be securely nailed to the jambs and glued with tape.

Ideally, the lathing for the lining should be made independent, with a gap between the frame and the foil. The larger the space, the better the ventilation and the less condensation. And this is the most important point in the insulation of the steam room.

According to the technology, the walls lined with foil with a ceiling in the bath receive reliable protection from moisture, and the foil coating works as a thermal mirror, contributing to the maintenance of comfortable temperatures in the steam room. You can insulate the bath on your own, there is nothing complicated in this matter, you just need to consult with a specialist in choosing a warming substrate.

Foil for thermal insulation of a bath: which one to choose and how to install

Will aluminum foil be useful in the bath? Which foil insulation is better to choose for a bath. The nuances of installing foil in a steam room.

Which aluminum foil for a bath is best for

An ideal sauna building should warm up as quickly as possible and retain thermal energy for a long time. For this, the walls and ceiling are insulated in it. A heat insulator such as aluminum foil for a bath is one of the most demanded materials, as it is resistant to high temperatures and humidity.

Foil properties

Among the characteristics that foil for baths and saunas has, the most important is the ability to reflect about 97% of infrared rays. If this material is used for continuous sheathing of the steam room, the thermal energy will be retained as much as possible. The fact is that the IR rays are not absorbed by the walls, but are reflected towards the room.

Foil for a steam room is ideal because:

the material is able to withstand temperatures up to 300 degrees and even higher - this property depends on its type;
does not emit substances harmful to the human body;
has a low specific gravity.

In addition, aluminum foil has the following advantages:

moisture resistance;
plasticity;
durability;
vapor tightness;
resistance to corrosive processes.

When using this material, almost all the heat remains in the steam room, while the insulation for the bath with foil on the walls will be reliably protected from condensation. The fastening process is simple, the main thing in the work is not to allow deformation, and not to leave gaps between the canvases.

To achieve a greater effect, foil heaters for a bath are sheathed not only on the walls, but also on the ceiling surface, since steam and hot air first of all rise up.

Roll aluminum foil

Foil is produced both in rolls and in sheets. Roll material can have a thickness of 0.007 to 0.2 millimeters, a width of 10-1500 millimeters. The percentage of aluminum in it is up to 99.5%.

Depending on the type of surface, foil is:

smooth, without additional finishing;
for finishing;
finishing.

According to the scope of application, the material is divided into a canvas:

Depending on the manufacturing method, foil is distinguished:

soft (annealed), marked "M";
hard (unannealed) - the letter "T" is assigned to it.

A quality product is called a canvas that does not have folds, spots, tears and other inclusions on the surface. When viewed through the light of a thin canvas, it should be free of gaps and the smallest holes. Thick foil is allowed to have a small number of holes, which is regulated by the technical parameters of the equipment used.

A thin web is wound on sleeves of different diameters. Thick foil is produced in sheets.

Before starting work on insulation, developers are interested in how much foil for a bath costs. Domestic rolled products will be cheaper than imported material. With a roll length of 25-30 meters, the price will be approximately $ 20-30.

The use of foil for warming baths

To determine which foil to use for a bath is better, you need to take into account what material the structure was built from and the conditions for its operation. If the building is a log building with carefully poured walls, then a foil heat insulator is not required for it.

In the case when the bath is built of natural wood, but is large in area and does not warm up well, experts recommend sheathe the ceiling and walls from the inside with thin foil, and then close it with clapboard. You can use a foil cloth for the surface behind the heating unit, as a result of which the steam room will warm up faster.

Despite the fact that a foam concrete bath building is considered warm, it requires high-quality vapor barrier, so the use of foil will be justified, but it is better to opt for laminated products.

Frame and brick buildings must be insulated. For this, heaters for a bath with foil based on expanded polystyrene and mineral wool are ideal. The type of this material is chosen for ceilings, taking into account the thickness of the floor and the absence / presence of thermal insulation in the attic.

In addition, the operating conditions matter. If the bath is used infrequently and the procedures are taken for a short time, there is no need to insulate it with foil. When the steam room is used often and are in it for a long time, high-quality thermal insulation will save fuel, and the room will quickly warm up and cool down for a long time.

Performing a simple planking of a bath

When cladding the walls of bath buildings, the foil sheet is attached to the surface or over a layer of thermal insulation. Such work will take little time and will not require much effort.

The process looks like this:

Before sheathing the bath with foil, a frame made of wooden planks is fixed on the wall.
Insulation is placed between the slats.
The top of the insulating material is covered with an overlap foil, the joints between the strips are glued using aluminum tape.
The foil is sheathed with clapboard and a 15-20 cm air gap is made between it and the surface of the foil. This is a prerequisite for efficient heat transfer.

The air gap will reduce the thermal conductivity of aluminum, and since the hot lining will not come into contact with the foil, due to the insulating qualities of the air, direct heat transfer will become impossible. At the same time, infrared rays falling on the surface of the foil sheet will be reflected towards the steam room.

Types of heaters with foil for a bath

In the process of work, a thin soft sheet of foil is easily crushed and torn, therefore, new technologies for its application have appeared.

Now on sale there are:

Foil paper

Its other name is paper-based laminated foil for a bath. It is an elastic and dense material and has excellent vapor barrier characteristics. It is produced in two types: foil plus kraft paper and foil plus paper plus polyethylene.

Foil paper is able to withstand 130 degree heat. Resists compressive loads. It holds its shape and is easy to cut. The standard strip width is 120 centimeters. Self-tapping screws, construction staples and nails are used for its fastening. The material is used for cladding baths from the inside. It is not recommended to use laminated foil for the surface of the walls adjacent to the oven.

Foil fabric (foil fabric)

This soft two-layer material is made from fiberglass and foil. The thickness of the foil fabric is in the range of 0.12 –3 millimeters. The canvases must be fastened end-to-end. Foil fabric is used to insulate bath rooms, it can be used to sheathe the walls near the heating unit.

Its main characteristics:

the ability to withstand temperatures up to 500 degrees;
resistance to mold and other harmful microorganisms;
good moisture resistance.

Foil polystyrene foam

Insulation is made on the basis of expanded polystyrene and covered with the thinnest layer of aluminum foil. The material is produced in sheets 1.2x0.6 meters in thickness 2-10 centimeters. They are used for the purpose of warming the premises of a bath building from the inside. The sheets are equipped with stepped locks that prevent the formation of cold bridges.

Foil polystyrene foam has the following qualities:

does not absorb moisture;
reflects about 98% of thermal energy;
differs in vapor barrier properties;
resistant to chemical attack;
safe for health;
has a long service life.

Foil polyethylene foam

This insulation roll with a thickness of 2 to 10 centimeters has a one-sided or double-sided foil coating. It is used in the arrangement of thermal insulation of the internal premises of baths.

This material is able to withstand temperatures of no more than 100 degrees. It is not used for cladding surfaces near the furnace.

Foil mineral wool

It is produced in rolls or in the form of mats of various thicknesses. Possesses excellent thermal insulation properties. Ideal for insulating frame sauna buildings. Using rolls or mats with foil makes finishing work easier and more convenient.

The best material for bath insulation

Since the cost of energy is constantly growing, the owners of baths and saunas are forced to look for ways to save costs for operating a steam room. When erecting a new building, it is necessary to use materials that have heat-saving characteristics. Baths built of bricks, foam concrete, cinder block and other building materials, except natural wood, need additional protection from heat loss.

When arranging a steam room, you should be especially careful when deciding which foil is best for a bath, since the material must be environmentally friendly and reflect heat well. All these requirements are met by heaters with aluminum foil coating.

Advantages of foil insulation:

The material is versatile, since it is used for walls, ceiling and bath floor.
Foil-coated heaters have good light reflection.
Products are produced in a wide range.
They are used in humid rooms, while they do not need to be treated with fungicidal compounds.
They have high hygienic properties. The inherent properties of aluminum do not create a breeding ground for the growth of fungi and mold.
They do not deform or melt in the steam room at elevated temperatures.
The material is easy to use. It is easy to mount and fix on different planes: vertical, horizontal and inclined.

Baths insulation tips:

If the bath building does not have a commercial purpose, wall decoration with 3 mm foil in rolls will be sufficient.
For commercial enterprises, the solution to the problem of which foil is better for a bath will be the use of laminated products based on basalt mineral base.

When insulating a bathhouse located inside a capital building, it is necessary to take into account the functioning of the central heating, since it heats the air additionally.

Aluminum foil for a bath: which is better to choose, whether to use paper-based in a sauna and steam room, foil insulation, how to sheathe the walls

Aluminum foil for bath insulation: a myth of thermal insulation or a brilliant reality?

Ideally, the bath should heat up quickly and retain the resulting heat for a long time. For this, the walls and ceiling are trying to insulate with high quality, blocking all exits outside the steam room with heat flows. The traditional insulating layer has a complex structure, but aluminum foil is almost always its constant component. This component is as popular as it is controversial. Philosophical battles, backed up by the theory from physics textbooks, have been fought on the forums of bath lovers for more than one year. Some argue that foil is a wonderful insulation for a bath, others that it is practically useless as a heat insulator. Where is the truth? Let's try to figure it out.

Aluminum foil: another "scam" of manufacturers?

Aluminum foil for bath insulation is a thin (on average 30-300 microns) layer of aluminum, which is used unchanged or in combination with kraft paper, fiberglass, roll insulation. The main argument of opponents of using foil in a bath is that aluminum has a high thermal conductivity.

Based on this, thermal energy can freely pass through the metal layer and be outside the steam room. In fact, this is not entirely true. Firstly, high thermal conductivity will "work" against us only in the case of direct contact of the foil with a heated body (for example, with a wooden clapboard or a blockhouse). Secondly, besides thermal conductivity, there are other ways of transferring heat.

Three ways to transfer heat

Heat transfer can be done in three inherently different ways:

In the case of foil, only the last method should be considered - radiation. The stove in the steam room, when fired up, begins to intensely emit infrared rays, which a person perceives as heat. Now the fun begins. Infrared rays, falling on the aluminum foil layer, are not absorbed by it, but are reflected in the opposite direction, that is, back to the steam room. Reminiscent of a mirror effect. Therefore, we can say that foil for baths is not a heater in the literal sense of the word; it would be more correct to call it a heat reflector. Moreover, it reflects up to 97% of all infrared rays.

In addition, the foil is a vapor barrier - a sealed material that does not allow water or steam to pass through. Accordingly, it prevents the heated steam from escaping and thus also contributes to the retention of heat.

Due to all this, the steam room, sheathed with foil, heats up much faster and does not cool down longer.

The foil can be mounted directly on the walls of the bath or on a layer of insulation (basalt wool, glass wool, etc.). The latter option is more effective and is most often used as a traditional insulating "cake" in steam rooms.

The fact is that the foil is not able to reflect all the heat. Part of it, due to the high thermal conductivity of aluminum, passes further. In order for it not to go beyond the steam room, a heat-insulating material is fixed behind the foil layer. High-quality thermal insulation "catches" what the foil missed and sends it back.

This is especially true in frame, brick, concrete baths and saunas. Without good thermal insulation, it is problematic to bring such a bath to "condition", especially in winter, - the lion's share of the heat flows emanating from the stove will immediately be carried away through the walls to the street. But good Russian log baths with a real brick oven do not need special thermal insulation, except for caulking.

Plating a bath with foil: how to do it correctly?

In order for aluminum foil to perform all its functions assigned to it by the manufacturer, you should know how to fix it correctly. In this case, there are some nuances, failure to comply with which nullifies its heat-reflecting and vapor barrier properties.

The plating process is simplified like this:

A frame made of wooden planks is attached to the walls of the bath, between which insulation (roll or slab) is laid.
Foil is attached to the strips on top of the insulation. All joints are carefully glued with special tape - for tightness.
The foil is sewn up with clapboard. It is very important that an air gap of 15-20 mm is maintained between the aluminum surface and the lining. This will not allow the high thermal conductivity of aluminum to fully manifest itself. The heated lining and foil will not touch, which means that there will be no direct heat transfer (air is a good heat insulator). At the same time, infrared rays reaching the foil will be reflected back almost completely.

Such a warming "pie" using foil is arranged according to the principle of a thermos. Simplified, a thermos is a double-walled flask with a vacuum interlayer between the walls. A mirror layer is applied to the inner surface of the smaller flask (the one with which the heated liquid is in contact). The vacuum prevents heat from spreading through conduction, and the mirror layer through infrared radiation. The same processes, only with a lesser degree of intensity, take place in a foil-clad insulation layer. In this case, the role of a mirror reflective surface is played by the foil, and the role of a vacuum with a very low thermal conductivity is played by the material of the heat insulator located behind the foil.

Thus, using foil as part of the insulating layer of the walls and ceiling of the steam room, you can significantly reduce the heating time of the bath, enjoy concentrated steam and heat longer, save the amount of firewood or electricity.

Aluminum foil for bath insulation: debunking the myths of thermal insulation

Is the foil good for warming a bath, as they say about it? Does it really have the heat-reflecting properties that are attributed to it? Review with tips from experts.

Use allows you to warm up the room in the shortest possible time and maintain the desired temperature for a long time. You can make thermal insulation yourself by choosing a suitable layer of foil for the bath. Previously, they were insulated with moss, which gave quite decent thermal insulation. Today, bath foil is used for these purposes. HouseChief editors will tell you how to choose and effectively use this insulation material.

PHOTO: stroisam2.ru

Read in the article

Why do you need a foil layer for a bath

The main feature of flexible cladding for a bath with an aluminum layer is heat preservation and rapid heating of the room. If you use the foil correctly, it will serve as a mirror shield between the walls of the bath and the infrared radiation emanating from. The cladding helps to preserve the energy effect.

PHOTO: construction.bani.rf

A few years ago, the installation of baths was carried out using simple wooden log cabins and moss. At the same time, it was impossible to achieve the effect of a thermos, the heat evaporated rather quickly, and the bath had to be re-melted after a few hours. This is not necessary today. During construction, high-quality insulation and films are used to isolate steam, due to which the room not only heats up faster, but also remains suitable for its intended use for a long time.

PHOTO: thermodom54.rf

The principle of the protective layer

Foil layer is a combined type of room insulation for a bath. One side of such a product is made of foamed polyethylene, and the other is made of polished foil. It is important to ensure that aluminum is present in the composition, since retaining and reflective properties are achieved due to it.

The main tasks of foil insulation: water-repellent functions, protection of wooden structures from dampness and from the effects of natural factors - low temperatures, strong winds.

PHOTO: banyabest.ru

Types of foil layers and their characteristics

The paper or foil insulation is very thin and consists of a base layer and aluminum foil. However, for insulation, other, thicker and denser products are also used - foil wool.

Such material also contains two layers - one, larger in size - cotton wool, and the second, thin - aluminum foil. Such layers are laid out on the bathroom floor and walls to protect against moisture and prevent heat leakage.

PHOTO: static-eu.insales.ru

Foil rolls

Soft foil, designed to keep the high temperature conditions in the bath room, is sold in rolls at home improvement stores.

Average characteristics of one roll:

material thickness - from 0.05 to 0.1 mm;
roll height - 1 m;
the area of the protective material in one roll is from 6 to 25 m².

The price for one roll starts from 450 rubles.

PHOTO: st5.stblizko.ru

Paper base

To keep the bath room warm, you can also use foil-coated Kraft paper. This method gives a good result, but it works for a shorter time, in contrast to polyethylene and polystyrene foam products.

The paper roll will soak faster when indoors, so it is more effective to use it in a dressing room or in a relaxation room.

PHOTO: td-sm35.ru

Before buying paper-foil protection for a bath, you need to bend the edge of the product and look at the fold. If a seam has formed, it is not recommended to take such a product, it will quickly lose its appearance and deteriorate.

Foil layer of expanded polystyrene and polyethylene foam

A foil made of expanded polystyrene or polyethylene protects the room from moisture for much longer, as it does not tear or crack. The film made of polyethylene and polypropylene can even serve as insulation for the outer walls of the bath. It is resistant to ultraviolet radiation and other aggressive natural factors.

PHOTO: vse-postroim-sami.ru

The price for such films is low. Today, you can find various options on sale, including those based on cellulose and viscose. A quality layer should be slightly rough to the touch.

Mineral wool in mats and rolls

Several types of mineral wool can be used to insulate a bath, but a material with a protective foil layer is considered the best option. It not only protects the room from moisture, but is also fireproof. However, the temperature limit for operation is 80 ° C, so this insulation is not suitable for a Finnish sauna.

PHOTO: st0.isolux.ru

The use of mineral wool allows you to increase the service life of the bath itself due to the presence of a protective foil layer, as well as maintain an optimal temperature regime for a long time, and reduce the cost of heating the room.

Advantages and disadvantages

Foil insulation, like any other material, has a number of pros and cons.

The benefits include:

environmental friendliness;
good sound insulation properties;
absence of dangerous and toxic emissions during the heating of the material;
high elasticity, simplified installation.

PHOTO: st0.isolux.ru

Despite the many advantages, foil-clad thermal insulation has some disadvantages:

over time, the foil still corrodes;
in order to avoid ignition of the material, excessive overheating of the room must be avoided;
the opposite effect of heating is possible, when aluminum, heating up, gives heat first to the room, and then to the side of the street.

PHOTO: stroyfora.ru

Some problems can be avoided by leaving a gap between the inner wall of the bath and the foil. In this case, the aluminum layer will not overheat and release heat in the other direction.

Bath foil manufacturers

In any hardware store you can find several options for films and sheets with mineral wool for warming a bath. In the selection process, attention is paid to what functions the material should perform: corrosion protection, insulation or sound insulation.

PHOTO: reliz-remont.ru

The most popular materials for the bath

Before buying, you need to study the offers from different manufacturers and choose the appropriate option.

PHOTO: images.ru.prom.st

Mat from the series "Isover Sauna 50"

One of the most popular heaters for a bath is the Isover mat, which is made in a special oven using mineral wool. The fiberglass in this mat is of a very high quality. All foil layers are additionally reinforced with a mesh with fine meshes, which allows to extend the service life. When developing the material, the manufacturer tried to create a protective coating in which the foil would not crack and tear.

PHOTO: images.ru.prom.st

Insulation can be used both as insulation for the internal walls of a building, and for thermal insulation of a sauna. Due to the presence of the aluminum layer, much more heat energy is stored. The material can be used not only for wall insulation, but also for the ceiling.

Advantages of Isover mats:

small coefficient of thermal conductivity and good thermal protection;
the mat acts as a barrier for steam;
sound insulation is also top notch;
mats are made only of safe, low-combustible materials of class G1;
throughout the entire service life, all functions and characteristics of the material remain unchanged;
mats are available in different sizes;
when heated, no toxic substances hazardous to humans and animals are released;
easy installation with a stapler.

The high quality of the thermal insulation material is confirmed by the quality standards EN 13162.

PHOTO: teplota.guru

Mat from the series "Isover Sauna 50"

Rockwool Lamella MAT

In order to completely sheathe the bath and prevent moisture from penetrating into individual corners, you need to use a coating with a thickness of 50 mm or more. One of the quality mineral wool on the market is Rockwoll Lamella MAT.

This is foil stone wool made from natural materials. The main feature is that the fibers are perpendicular to the coating, which allows the material to remain flexible and strong for longer.

PHOTO: shop.rockwool.ru

Rockwool Lamella MAT

Knauf Insulation LMF Alur

Mineral wool from Knauf can withstand temperatures up to 600 ° C when used to protect the walls of a bath. However, it is important to observe the temperature indicator for air - no more than 100 ° C.

PHOTO: st34.stpulscen.ru

Knauf Insulation LMF Alur

Ursa M-11 F

The coating is used to insulate walls, maintain the temperature inside the room. Also, mineral wool with a foil layer Ursa has an interlayer designed for vapor barrier in saunas and baths.

PHOTO: teplotek24.ru

Features of the choice of a foil layer

When choosing a material to protect the walls of a bath from high humidity, several features must be taken into account. Insulation most often occurs due to the presence of a layer of mineral wool, and the foil retains moisture and does not let heat into the street.

Brick layer

Thermal insulation will retain all its properties if it is stuffed onto brickwork, however, several installation features must be taken into account. The foil acts as a screen that prevents heat from passing out through the holes in the bricks.

PHOTO: legkovmeste.ru

Concrete layer

Baths and saunas are always built of wood, so the concrete layer near the building can only be at the bottom, as a pillow for the entire structure.

A wooden structure is laid on top of a layer of concrete, the cracks in which are first clogged with mineral wool, and then covered with a foil film.

PHOTO: legkovmeste.ru

Wood layer

It is easiest to apply insulation to wooden walls. Special recesses are formed, where glass wool or foil paper will be laid, after which the entire space is covered with boards.

PHOTO: legkovmeste.ru

To successfully insulate the bath and protect the tree from the effects of high temperatures and humidity, you need to apply a few simple tips and rules:

The most important thing is to make sure at the time of purchase that the base layer is coated with aluminum foil and not a simple foil coating. To do this, you need to study the characteristics of the product on the label and bend the tip of the sheet. There should be no creases on it.
To reduce convection in the gaps between the bath structures, it is necessary to use additional slats that are laid horizontally.
It is not necessary to use the same material for the floor and ceiling. You can combine a dense layer with mineral wool and a thin paper layer with foil.
Brick walls are pre-treated with a primer.

PHOTO: a-saun.kiev.ua

PHOTO: images.kz.prom.st

PHOTO: remontik.org

Finally

Foil insulation is the best solution for any bath or sauna. This material is non-toxic and retains heat well in the room, so there is no need to heat the bath several times a day.

What kind of insulation did you choose for your bath? Have you used a combination of several materials for the walls, floor and ceiling?

One of the most important stages in the construction of a bath is heat and vapor barrier for the bath. The use of foil for warming the bath will help to complete this stage at a sufficiently high quality level. Modern technologies have led to the emergence of a huge range of materials in the construction markets, however, their use, together with foil, will make the final result more highly effective.

When buying foil for a bath, you should thoroughly make a decision on the question: which one is better to choose. The purchase must be made based on the compliance of the product with a number of important criteria, among which ease of installation and durability in operation can be distinguished. In this regard, special attention should be paid to the following nuances.

Aluminum sheet, due to its technical features, is a raw material very sensitive to mechanical damage, therefore, it should be purchased on a substrate and, preferably, in a reinforced form. This solution will significantly reduce labor costs during installation due to the absence of time wasted on unnecessary sealing of damaged areas.

Among the most common types of substrates are:

kraft paper,
foamed polyethylene,
mineral wool.

A very important detail that makes foil insulation for a bath an irreplaceable product is its reflectivity. 95% for this characteristic will be sufficient for the product to perform its function. The higher the reflectivity, the less heat the room will lose.

Thermal insulation must necessarily have significant resistance to high temperature and humidity. If we talk about temperature, then the insulation must be kept at least 100 C.

Separately, attention should be paid to the environmental friendliness of thermal insulation. During operation, foil-clad insulating substances will be repeatedly heat treated. These processes should not become a catalyst for the release of harmful, toxic substances into the air.

Foil insulation must have certain vapor barrier properties. So, vapor permeability during the day should not be higher than 0.01 g / m2.

Durability and reliability are also important criteria. Before making a purchase, you should read reviews of thermal insulation products on information sites, as well as inquire about the warranty periods of operation from manufacturers or distributors.

Product range of possible foil-clad insulation products

Knowing the basic requirements for foil-clad materials, you should consider in detail the varieties of thermal insulation products. Finishing the bath with foil will take less time if you study the whole variety of the insulation market in advance. Below is a list of the most common ones:

Aluminum foil for a bath. This thermal insulation product is sold in rolls. Rolls on the markets are presented in a wide range. Rolls can be of different widths and lengths. The layer thickness can also vary.

Foil rolls have no base. It is used for mounting on top of an existing mineral insulator. You can use aluminum foil for a bath up to 650 degrees. At the same time, the owner himself can choose the thickness of the insulation, it is important to remember that the final strength depends on this. The reflectivity of an aluminum sheet is usually at least 95%.

Installation is carried out with an overlap with the obligatory gluing of the joints with metallized tape. The use of foil for insulation is absolutely safe for human health, since it does not emit toxic substances when heated.

Kraft foil. This thermal insulation material is made on the basis of cellulose, and it can also be found in a three-layer version, consisting of foil, polyethylene and kraft paper.

The main properties include high strength, environmental friendliness, tightness. Kraft foil has a small thickness, which may not exceed 1mm. The surface of the foil has a reflectivity of 95%. Despite the fact that the operating temperature of kraft foil is noticeably lower than that of a rolled aluminum sheet, and is equal to only 100 degrees, it is much more convenient to install, since it is less susceptible to mechanical damage and has greater flexibility.

Folgoizolon. Baths, the walls of which are sheathed with this material, do not require additional insulation measures, subject to all technology requirements. In addition to all the basic functions, "Folgoizolon" has soundproofing properties. This product is usually sold in rolls, but sheet packaging can also be found with its large thickness. Its basis is polyethylene foam.

In sheets, "Folgoizolon" has standard dimensions of 600 * 1200mm with a thickness of 20 to 110 mm. In rolls, the thickness does not exceed 10 mm with a width of 1000 to 1200 mm.

"Folgoizolon" is easily processed during installation, it is not subject to deformation, in operation it can withstand temperatures up to 125 degrees.

The most popular thermal insulation product on the Russian market is foil mineral wool. Products based on mineral raw materials have traditionally been used in the insulation of any premises for many years. In the markets, it can be purchased both in rolls and in sheets, with a thickness of 30 mm to 100 mm. One of the main disadvantages is the presence of an unpleasant installation procedure. Cheap thermal insulation causes irritating reactions of human mucous membranes.

Penofol. For a bath, this foil thermal insulation can become an excellent product with vapor barrier properties. Being a canvas based on vapor barrier, "Penofol" not only does not release heat outside, but also helps the walls "breathe". The reflectivity of the material is about 97%. With such indicators, we can safely say that the thermal insulation of the bath walls when using "Penofol" will be better. The thickness of the main heat-insulating layer, as a rule, does not exceed 10 mm. The vapor barrier material is able to withstand temperatures up to 300 degrees.

This foil for a bath has higher quality parameters in comparison with competitors. Megaflex can be used at temperatures above 300 degrees. Bath foil is highly reflective. Subject to the installation technology, this product will help create a sufficiently sealed system that prevents steam from spreading outside the bath room.

Which thermal insulation product is better

Heaters for a bath, due to their characteristics, have different properties, with foil they will cost more, but these are justified costs. It is difficult for an average person to find out from the first time which product is better, more reliable, what are the properties of thermal insulation foil, how much is 1 sq. M. goods for isolation. The table below will help you save time when choosing a foil for a bath.

Foil insulation	Price r. per sq.m	Reflectivity	Environmental friendliness	Ease of installation
aluminium foil	From 60	95%-97%	+	-
craft foil	From 35	From 95%	+	+
"Folgoizolon"	From 25	From 95%	+	+
"Penofol"	From 60	0.97	+	+
mineral foil insulation	From 80	From 95%	+	-

Installation of foil-clad thermal insulation cannot be called too laborious. If the premises of the steam room are made of a log house or wooden blocks, then the foil can be fixed directly to the wall in the bath. The whole process is carried out in several stages: Installation rules for foil insulation

The thermal insulation is attached to the wall with special construction brackets. It is important to monitor the integrity of the canvas, to avoid breaks. If you could not do without damage, then the situation will help to fix the metallized tape.
The insulation is fastened with an overlap, the width of which must be at least 20 cm. Each joint is glued with a special tape. The better this work is done, the less heat loss will be in the future.
A frame for finishing is mounted on top of the insulation. It is important to pay attention to one point: it is necessary to maintain a gap between the finishing panels and the insulation to ensure air circulation.

If the walls are made of bricks, then, as a rule, installation is carried out on top of mineral wool. To complete this process, the order of the steps is slightly changed. Then, first of all, it will be necessary to assemble the frame of the future partition, and already inside this frame, mineral wool is laid, on top of which the foil is mounted in the usual order.

Outcome

The process of warming any room, including the baths, is an important stage in the work. Not only the consumption of energy sources depends on how well the work is done, how effective materials are selected, but also on the safety of the building structures, as well as the comfort inside the building. Now materials for thermal insulation can be chosen from a huge number of products on the market. It is important to know that bath insulation foil is an integral part of the process to create optimal operating conditions in the future.

High-quality thermal insulation, resistance to penetration of hot steam, high temperatures, resistance to moisture and external influences - this is a foil insulation.

A thin layer of aluminum reflects heat, keeping it inside the building. Such characteristics make it possible to use it for installation of insulation of walls of baths and saunas.

Bath or sauna buildings require insulation and insulation from external influences. It also requires internal insulation of walls from increased moisture, steam and high temperatures.

A material is selected that does not lend itself to such influences - this is a foil insulation for a bath. Construction experts recommend this type of insulation.

Insulation for a bath with foil is called a two-layer. It consists of an outer layer of aluminum foil that is perfectly polished.

The metal coating reflects heat into the building, keeping it in the room over 95%. This coating repels moisture, steam. The foil layer can withstand air heating up to + 150 °. The indoor temperature rises by 2-4 °.

The core of the insulation consists of foamed air bubbles, which prevents heat from being conducted or absorbed.

Criteria for choosing a foil for a bath

From the presented insulating heaters, a coating with foil paper is selected. The positive characteristics of the bath foil are also taken into account.

This requires a product that:

protects against ultraviolet radiation;
has additional moisture-proof and vapor-proof properties;
heat insulating;
soundproofing;
application on a variety of surfaces, including wood, concrete, brick;
has dimensional characteristics.

Taking into account the building material from which the room is built, the thickness of the thermal insulation is selected. When choosing, they are guided by the study of the number of positive reviews, verification of quality indicators and certificates.

Attention is also paid to the state of the package, its tightness.

Foil types and coating features

The walls of a bath or sauna are insulated with an aluminum-coated material that retains internal heat. For this, some types of protective layer are selected.

Folgoizol

Foamed polyethylene is the basis for a protective layer called foil-insol. Its thickness can be made at the request of the customer from 100 microns to 200 microns.

The material can be rolled into soft rolls or hard plates. The thickness of the insulated sheet is from 2 to 11 cm, the length is 25, 30 m and the width is 1 or 1.2 m.

On the basis of polystyrene, rigid plates have a thickness of 2 to 10 cm, a size of 60x120 cm. This type of insulation is used for application on the wooden walls of a log-bath, or on walls sewn with clapboard.

The material is non-flammable and does not emit toxins at high temperatures. Environmental indicators allow the use of foil-insol in the food industry.

Protective aluminum layer, corrosion resistant. Withstands temperatures up to +150 °. The operating period in comfortable conditions is more than 20 years.

Kraft foil

This type of insulation consists of three layers: a paper base (kraft paper), aluminum foil, and polyethylene in between. It acts as an additional water-repellent component and serves as an adhesive bonding agent.

This material ideally protects the insulation from steam and moisture. It is used to insulate the interior surfaces of baths and saunas. Without releasing toxins under the influence of high temperatures up to + 120 °. The joints are connected with aluminum tape.

Aluminum coated kraft foil is available in two sizes:

25 m long and 1.2 m wide;
the canvas is 15 m of the same width.

Foil on a paper basis for a bath is not susceptible to fire, reflects ultraviolet radiation well, and maintains surface tightness.

Folard

Aluminum layer, fiberglass mesh and polyolefin film, glued together with polyurethane glue. The three-layer thick insulator is folar.

The fiberglass mesh does not allow it to deform under the influence of high temperatures up to + 150 °, but retains high quality characteristics. Also, the material is environmentally friendly.

Foil mineral wool in soft rolls

A popular thermal insulation product on the Russian market is rolled mineral wool with a foil coating. Thermal insulation protects the wooden structures of the bath from the influence of steam, increased moisture.

High thermal insulation values retain heat by 95%. Due to the protective base, the insulation belongs to the group of low flammable.

The length of the sheet in a roll is 12.5 m, the width is 1.2 m with a thickness of 50 mm. The insulation is resistant to infection by mold fungi and insect pests.

Performs the function of soundproofing. Lightweight material is used in all frame structures.

Foil mineral wool in the form of hard mats

Foil sheets of expanded polystyrene are used in the form of rigid mats. It is used for flooring with water underfloor heating.

The brushed surface screen reflects heat upward from the heating pipes. The applied markings help in the installation of the heating system.

Foil rolls

Foil for a sauna on a soft base is used to maintain the thermal regime of the room, fixed under the lining.

The joints are connected with special tape. The length of the web in a roll is 31 m ± 0.25 m, the width is 1.25 m, with a 7 micron foil thickness, the density of the cardboard is 50 g / cm³.

The layer thickness has a high thermal conductivity. It is used as an insulated layer in steam rooms, applied over insulation.

Correct installation

Thick foil insulates the walls of the room from the increased influence of moisture and high temperatures.

For work you will need:

foil insulation;
stapler;
hammer, nails with wide heads;
metallized adhesive tape.

The main mistake of attaching the material is the wrong location of the reflection layer. The shiny surface of the sheet is directed into the building, with the paper against the wall. The joints are never overlapped, they are glued together with aluminum tape. The canvases are fixed with a construction stapler.

To fix the insulator, which has an adhesive base, additionally glue it with a dotted rubber glue. After laying and gluing the sheets, the covering is fixed with a wooden crate.

Bath room ventilation

Before the steam room is insulated, a ventilation system is designed. For ventilation of the room, a natural or forced system is used.

Ventilation is arranged with one lower hole, opposite to the dimokhod stove, arranged on the wall. The heated steam rises and cools. It mixes with the incoming fresh stream from the inlet window and is pulled out by the blower system of the stove.
The heating stove can be installed below the floor level so that the blower system is in the gap between the floor and the insulation. Entrance windows are located at the top of the plinth and in the bath floor. The air passes through the underground flight into the steam room and is drawn into the blower system of the stove.
The supply window is mounted at the bottom of the steam room next to the heating system. To prevent a draft from forming, an exhaust window is arranged at the top behind the partition. The natural system is equipped with a device that regulates the air flow.
The use of such ventilation does not deliver the expected effect, because the air when it enters it quickly heats up, rises up and is pulled out. For an additional flow of fresh air, doors are opened, which is unacceptable when accepting a procedure.
Ventilation can be installed on one end wall opposite the heating system. The incoming air flow is additionally amplified by a fan, such ventilation is called forced ventilation.
For efficient ventilation, the windows are placed in opposite bottom planes. The exhaust ventilation window is additionally equipped with a fan. The heated air, after entering the room, rises to the ceiling, cools down and is drawn out by a fan.

There are three openings for air flow for air exchange efficiency:

one window below, near the stove;
another window in the floor, where a gap is provided between the floor of the room and the insulation;
the third hole on the opposite wall from the stove at the top.

A device for forced ventilation is installed in the upper window. The area of the window is calculated based on the area of the bathhouse: for 1m² - the volume is 24cm².

Only a properly installed room ventilation will allow you to extend the operating time of the sauna room.

Thickness of walls and applied insulation

The insulating effect is obtained with the correct use of paper-backed foil, given its thickness. This table is used to determine:

Wall composition	Wall thickness, mm	Material thickness, mm
Concrete	350-370	80-100
Brick	250-350	100-150
Wooden blockhouse	100-150	60-80
Wooden blockhouse	150-200	40-60
Wooden blockhouse	From 200	up to 40

This calculation involves the development of insulation for the walls of baths and saunas. The reflective aluminum layer is mounted only inside the room.

Wall insulation using foil insulation

Thermal insulation must be resistant to hot air with an average temperature of + 100 °. The environmental friendliness of the coating is taken into account under the influence of thermal loads. Hot steam permeability is lower than 0.02 g / m².

The building material used in the construction of the walls of the bath affects the choice of reinforced canvas, installation of insulation and the thickness of the covering layer.

Thermal insulation of a bath from a wooden frame

Before finishing work, the building must shrink. The walls of the log house are carefully caulked on both sides before insulation.

The covering is laid and fixed with staples over the entire surface of the wall without gaps or gaps. Damage should be sealed with aluminum tape. Insulation joints are also glued to achieve tightness.

On top of the foil paper, strips with a thickness of 30x50 mm are fixed. The board finish is fixed on them. The thickness of the lath creates a ventilation effect underneath.

Thermal insulation of a bath made of brick and concrete

Walls made of brick, concrete or foam blocks differ in the order of installation work.

The first step is marking and calculating the lathing on the walls. The bars are selected according to the thickness of the insulation layer, since it is inserted "flush". The distance between the bars is equal to the size of the insulation sheet. Ventilation windows are lined for the convenience of fixing the foil. The bars are mounted in a vertical position.
Bath aluminum foil is fixed to the surface. The joints are sealed with metallized tape, additionally secured with staples. Foil is carefully fixed on the ventilation windows.
The insulating material with foil is fixed with horizontal beams. Sheathing is stuffed on top of the beams. The gap created by the thickness of the beams will serve as ventilation of air and steam. Also, the foil protects the insulation and the crate from the influence of moisture.

Reliability and long-term use of foil-clad insulating materials are important qualities. Please read the warranty periods before purchasing.

Also ask for information on the operation of this insulation, according to customer reviews. Only such an analysis provides an opportunity to choose a worthy insulating