Updated: 12.03.2021 14:51:20

Judge: Andrey Nikolaevich Kuznetsov

*A review of the best according to the editors of expertology.ru. About selection criteria. This material is subjective, is not an advertisement and does not serve as a guide to the purchase. Before buying, you need to consult with a specialist.

In a private house, unlike a multi-storey one, there are much more heat losses. The air heated from heating gives temperature to the walls, windows, roof and floor. In order not to spend even more money on heating, it is advisable to perform insulation, for which various materials are produced. We have prepared a rating of the best heaters for the home, based on reviews from craftsmen and ordinary customers, as well as product characteristics. This will help you navigate the available variety and choose a home insulation with optimal properties for walls, attic or floor and at an affordable price.

How to choose a heater for the house

Our rating contains the most popular types of heaters. Before considering it, we briefly touch on the main parameters that you should pay attention to when choosing:

  1. Thermal conductivity
    . The indicator informs about the amount of heat that can pass through different materials under the same conditions. The lower the value, the better the substance will protect the house from freezing and save money on heating. The best values ​​are 0.031 W/(m*K), the average values ​​are 0.038-0.046 W/(m*K).
  2. Vapor permeability
    . It implies the ability to pass moisture particles through itself (breathe), without detaining it in the room. Otherwise, excess moisture will be absorbed into the building materials and promote the appearance of mold. Heaters are divided into vapor-permeable and impermeable. The value of the former is from 0.1 to 0.7 mg / (m.h.Pa).
  3. Shrinkage.
    Over time, some heaters lose volume or shape under their own weight. This requires more frequent fixing points during installation (partitions, clamping strips) or use them only in a horizontal position (floor, ceiling).
  4. Mass and density.
    The insulation characteristics depend on the density. The value varies from 11 to 220 kg/m3. The higher it is, the better. But with an increase in the density of the insulation, its weight also increases, which must be taken into account when loading building structures.
  5. Water absorption (hygroscopicity).
    If the insulation is exposed to direct water (accidental spill on the floor, leaking roof), then it can either withstand it without harm, or deform and deteriorate. Some materials are not hygroscopic, while others absorb water from 0.095 to 1.7% by weight in 24 hours.
  6. Operating temperature range
    . If the insulation is laid in the roof or directly behind the heating boiler, next to the fireplace in the walls, etc., then an important role is played by maintaining the elevated temperature while maintaining the properties of the material. The value of some varies from -60 to +400 degrees, while others reach -180 … +1000 degrees.
  7. combustibility
    . Heaters for the house can be non-combustible, slightly combustible and highly combustible. This affects the protection of the building in case of accidental fire or intentional arson.
  8. Thickness.
    The cross section of the layer or roll insulation can be from 10 to 200 mm. This has an impact on how much space you need to allocate in the structure for its placement.
  9. Durability
    . The service life of some heaters reaches 20 years, while others up to 50.
  10. Ease of installation.
    Soft insulation can be cut a little with a margin and they will tightly fill a niche in a wall or floor. Solid insulation must be cut exactly to size so as not to leave «cold bridges».
  11. Environmental friendliness.
    It implies the ability to release vapors into the living space during operation. Most often these are binder resins (of natural origin), so most materials are environmentally friendly. But during installation, some species can create an abundant dust cloud that is harmful to the respiratory system and prick hands, which will require protection with gloves.
  12. Chemical resistance.
    Determines whether it is possible to lay plaster over the insulation and paint the surface. Some species are completely resistant, others lose from 6 to 24% of their weight upon contact with alkalis or acidic environments.

Difficulties and disadvantages of wall insulation inside the house

To understand why internal insulation is often resisted not only by the owners of the house, but also by professional builders, you need to consider all the negative aspects of this type of insulation. You can put up with some negative points, but there are also such factors, the consequences of which can be quite serious.

The main disadvantages of internal insulation include:

  • Reducing the usable floor space. For example, if a 5 cm thick material is used to insulate two outer walls in a room measuring 3×6 meters, then the area will decrease by approximately 0.5 m².
  • The complexity and high cost of the technology used. If you carry out work in accordance with the regulations, you will have to completely free the room from furniture and carry out complex measures to arrange additional ventilation and protect the walls from condensation.
  • Formation of cold bridges. Partitions, joints and internal structures in the walls during cooling cause the penetration of cold into the room and the appearance of condensate under the insulation.
  • Health hazard. Some types of wall insulation from the inside can emit harmful volatile substances. It is necessary to choose an environmentally friendly material that fully complies with safety requirements.

The very main threat is posed by thermophysical processes occurring on surfaces isolated from the inside. It is because of them that streaks appear on the walls, fungus and mold with a characteristic smell spread in the apartment. Illiterate installation of insulation leads to such consequences, which violates the mode of moisture exchange.

What is cotton wool fraught with. Why are there problems with insulation from the inside?

The main shortcomings of the internal insulation of walls appear, as a rule, in winter. During this period, the difference between the air temperature inside and outside the room can be the largest. But often problems arise in autumn and spring, when the temperature is low outside.

The main enemy of all building structures is moisture. If water gets inside the insulation, then it gets wet and becomes a favorable soil for the occurrence of fungi and mold.

There is a direct relationship between ambient temperature and moisture on the walls. Under conditions of temperature changes, vapors fall out of the air. When enough of them accumulate, condensation appears on the walls. In construction, there is the concept of «dew point». This is the specific temperature at which water appears on a cold surface.

This indicator depends on the state of the air in the room and the temperature inside the insulated layer. The more moisture in the air, the higher the dew point. That is, with increasing humidity, this indicator tends to a higher temperature. Even with a slight decrease, moisture will appear. Complex calculations are used to obtain dew point readings. When designing buildings, a summary table is used, which reflects the temperature values ​​​​of the dew point depending on the humidity and temperature inside the house.

According to SanPiN, the normal temperature in the room is + 20-22 ° C, and the humidity rate is set at 55%. With such values ​​​​of humidity and temperature, the dew point will appear in the place of the wall where the temperature will be + 10.7 ° C.

The dew point can move within the wall structure. It is located closer or further from the interior. After all, in winter the houses are heated, and on the street there are minus indicators. With a multi-layered enclosing structure, the place where condensate falls is determined by the thickness and thermal conductivity of each layer. And much here depends on their mutual location.

In the absence of wall insulation, the dew point is located inside it. The protective structure gives off heat to the street, so the room is cool even when the heating is turned on at full power.

If the insulation is mounted outside, then the entire outer wall warms up well from the heating inside the room. The dew point then passes into the insulating layer, where condensate accumulates. Moisture must be periodically removed, for this purpose the technology of ventilated facades is used.

Removal of moisture from the warmed ventilated facade.

In the case when insulation is laid for walls inside the apartment, the outer walls completely freeze through, because access to heat is closed by an insulating layer. The dew point moves inside the room, closer to the heater. But with an increase in temperature outside, it can again go deep into the wall.

With such fluctuations, condensate accumulates between the building envelope and the insulation, which significantly reduces the thermal insulation characteristics of the material. When the temperature drops, the moisture freezes, and then the destruction of the adhesive layer is possible. The walls get wet, and fungus and mold may subsequently appear.

Dew point for internal insulation

1. Zone of condensate formation; 2. Insulation; 3. Wall; 4. Dew point.

The main positive aspects of thermal insulation inside the building are much more comfortable installation conditions than during outdoor work. Laying is carried out in a warm room, there is no need to erect scaffolding. In addition, all activities can be done independently.

Rating of the best heaters for the house

Nomination place Name of product price
The best basalt insulation one rockwool 695 ₽
2 Hotrock Smart 302 ₽
The best polystyrene foam insulation one Technicol XPS Technoplex 1 100 ₽
2 Penoplex Comfort 980 ₽
The best foam insulation one Knauf Therm House 890 ₽
2 PSB S 15-O 1 688 ₽
The best fiberglass insulation one Isover Warm House 660 ₽
2 Ursa Geo 800 ₽
The best polyester fiber insulation one Shelter EcoStroy ShES arctic 1 780 ₽


Sintepon is an old-timer in the market of synthetic clothing insulation, the most common and most budgetary material of this class. It is based on polyester fibers, fastened together in various ways. The widespread use of synthetic winterizer is explained by its versatility and excellent consumer qualities, first of all, low hygroscopicity and easy maintenance. The temperature threshold for using synthetic winterizer is -10 ° C, and therefore it is most often used for demi-season clothing.

Outerwear with synthetic winterizer from Belarosso

The best basalt insulation

This category of heaters in the rating is also called stone or mineral wool. It is obtained by melting basalt rocks, during which thin villi are formed. The substance is completely natural, and natural resins are used for the bond.


Rating: 4.9

In the first place in the ranking of basalt insulation for the home is the product of a company from Denmark. Cotton wool is produced in rolls and slabs, which is convenient for mounting on logs or when laying in walls. The material can be used for both internal and external insulation of the house. In terms of thickness, the manufacturer offers options from 50 to 100 mm with a density of 37 kg / m3. Stone wool is completely non-combustible and safe for living quarters. Masters in the reviews share that you can buy it in various packaging of 6-12 sheets per package, which is practical for different amounts of work. Suitable insulation for all building materials in the house. Cotton wool fibers can withstand temperatures up to 1000 degrees, so even the walls of the fireplace can be covered with it.

Our experts liked the insulation for the house because of the new Flexi technology. One of the edges of the sheet has a springy property and is additionally unclenched after installation. Such an edge is specially marked by manufacturers and improves the tightness of the installation, for which the product got into the rating of the best.


  • does not crumble during installation;
  • excellent sound insulation;
  • easy to fit;
  • low weight at a density of 37 kg/m3.


  • the whole body itches strongly after styling;
  • increases thermal conductivity when wet;
  • absorbs water up to 1 kg per m2;
  • need more supports for vertical installation.

Extruded polystyrene foam

The difference between foam and this material is only in the production method. However, foaming is higher. Moreover, extruded polystyrene foam is additionally processed through high-strength molds (dies). This achieves water resistance. Also, the material is able to withstand mechanical and atmospheric loads.

Advantage Features:

  • withstand temperatures from −500°С to +750°С;
  • used in industrial facilities;
  • involved in road construction;
  • used as a heater for wells and roofs.

Extruded polystyrene foam

However, extruded polystyrene foam has been banned in Europe and America. This decision was influenced by the lack of this insulation — a high level of flammability. This parameter has repeatedly caused the destruction of buildings after repair in several European countries. As a protection for their products, the manufacturer began to add substances that prevent combustion. But this too has been subjected to extensive criticism, since during smoldering, dangerous toxins were released. Therefore, it is impossible to assign the title of «best insulation» to this material.

The best polystyrene foam insulation

Extruded polystyrene foam is obtained by foaming polystyrene. The result is a hardened foam with small cells isolated from each other. Thin walls do not allow the temperature to be actively transferred, due to which the isolation effect occurs.

Technicol XPS Technoplex

Rating: 4.9


In this category of heaters, in the first place is a product known for its white and green packaging. Insulation for the house is made in Russia. The material is produced in the form of plates with a thickness of 20 to 100 mm, which the masters like in the reviews, because it allows you to choose the optimal section for different parts of the house. It is allowed to use thermal insulation in the bathroom and in the kitchen, because it is able to pass steam with a coefficient of 0.01 mg / (mhPa). At the same time, the surface does not absorb water, preventing the development of the fungus.

Our experts liked the insulation due to its compressive strength of 0.1 MPa at 10% deformation. This allows you to insulate the floors along the logs and not worry about the load exerted on them. It can also be used when organizing underfloor heating in a house with pipe or cable laying. This effect was achieved by adding nano-carbon, visible as a light gray tint. For this product, and pressed into the rating as the best for floor insulation.


  • large range in thickness from 20 to 100 mm;
  • low thermal conductivity 0.032 W/(m*K);
  • L-shaped edge for easy insertion under structures;
  • almost does not absorb water (0.1%);
  • high vibration resistance.


  • high price;
  • the substance burns and smokes strongly;
  • produced only in slabs.

Material Comparison

  • Mineral wool is a product of melting basalt rocks.
  • Glass wool is a coarse fibrous material obtained by melting glass, sand, soda, borax, limestone.
  • Styrofoam — foamed cellular plastic.
  • Polystyrene is the result of the polymerization of styrene.
  • Extruded polystyrene foam — expanded polystyrene.
  • Polyester fiber is a recycled plastic product. The synthetic fibers of this insulation are similar to synthetic winterizer.
insulation pros Minuses
Mineral wool of basalt group • low thermal conductivity; • non-combustible, fire-resistant; • does not emit smoke when exposed to fire; • light; • easy to mount; • vapour-permeable; • maintains influence of alkalis, acids; • vibration resistant; • dielectric; • environmentally friendly. • does not keep its shape well; • need special protection during work.
glass wool • budget; • weighs little; • high chemical resistance; • elastic and strong; • environmentally friendly; • vibration resistant; • non-combustible. • Tiny particles of material can cause respiratory or eye damage. For installation, you need overalls, a respirator, goggles, gloves. • Hygroscopic; • Does not keep its shape.
Styrofoam • inexpensive; • light; • does not absorb water; • durable, withstands mechanical loads. • highly flammable; • releases toxic substances during combustion; • crumbles, crumbles during work; • low density; • need precise cutting during installation; • easily destroyed under the influence of technical liquids or their vapors — gasoline, acetone.
Styrofoam • not hygroscopic; • low coefficient of thermal conductivity; • keeps its shape for a long time; • withstands compressive loads. • highly flammable; • difficult to mount — you need to accurately cut the material; • easily destroyed by insects, rodents.
polyester fibers • keep the shape; • not hygroscopic; • low thermal conductivity; • hypoallergenic; • lungs. combustible.

The best foam insulation

The material is obtained by foaming the polymer, but differs from the previous group of products in the rating by larger cells. This technology is easier to implement, so home insulation is cheaper, but the density is one of the lowest.

Knauf Therm House

Rating: 4.9


The first place in the ranking was taken by a product of a well-known brand, the name of which directly indicates the intended use — home insulation. Suitable for laying in floors along logs, insulation of pitched roofs, laying in wall niches. Environmentally friendly and does not emit harmful gases into the room during operation. The manufacturer claims the service life of the insulation up to 100 years. The product is manufactured in accordance with GOST 15588-2014 and has quality certificates. Unlike extruded species, this one is not attractive to rodents.

The insulation is rated by experts as the lightest — the weight of a sheet of 100×60 cm with a thickness of 5 cm is 400 g. This is the best option for finishing the walls of a house, if the masonry already gives a large load on the foundation and a minimum mass is required from the insulating layer so as not to harm the base . But in view of the rigid structure, the masters in the reviews advise isolating the seams with mounting foam in order to eliminate “cold bridges”.


  • the lowest price in the entire rating of goods;
  • a light weight;
  • many options for the cross section and size of the plates;
  • not afraid of water.


  • density is only 10 kg/m3;
  • burns and emits poisonous smoke at the same time;
  • crumbles during installation;
  • you need to accurately cut and additionally isolate the seams with sealant.


Cellulose-based insulation, which is made from waste paper and paper waste. The bulk of the insulation is 80% cellulose fiber. There are additives that prevent combustion and reproduction of microorganisms — boric acid and borax. These additives are practically not harmful to humans.

insulation for walls outside the house in the country
Ecowool is a safe insulation Source deal.by

Ecowool is a good heat-insulating material, which with its properties is practically not inferior to others. But it has much more significant shortcomings:

  • Loss of thermal insulation properties over time — ecowool is subject to shrinkage.
  • Costly installation. Spraying is carried out with special equipment. Basic skills in working with the material are required to obtain the correct layer of insulation.

Application features

For insulation with ecowool, various technologies are used:

  • dry backfill;
  • wet spraying;
  • wet adhesive plaster.

Each method has its own characteristics. For wall insulation, the wet method is most often used, which requires the use of special equipment, as well as an adhesive.

insulation for walls inside the house in the country house price
The use of special equipment for working with ecowool Source chrome-effect.ru

Ecowool cost

Ecowool is packaged in sealed bags of 13–15 kg. The price for 1 kg of insulation is 30–40 rubles.

But the material consumption depends not only on the desired thickness of the heat-insulating layer, but also on the skills of the performer, compliance with the insulation technology.

The best fiberglass insulation

This type of product in the rating is popularly called glass wool. It is produced by melting soda, sand, borax, limestone and cullet. This results in thick fibers of various orientations that effectively delay heat transfer. The material costs less than analogues, but it hurts the hands a lot during installation.

Isover Warm House

Rating: 4.9


In the first place in this category of the rating is a product known to the whole world. Glass wool for the home is produced in rolls with a cross section of 5 cm and a width of 55 cm. In the production, the company uses the patented TEL technology, which is highly environmentally friendly. The insulation is suitable for use in a house on a pitched and straight roof, in floors and wall partitions. The product complies with ISO9001 and EN13162 standards. In addition to insulation, heat contributes to noise protection. In terms of thermal conductivity, the substance has an indicator of 0.040 W / (m * K). Buyers in the reviews note the affordable price and long service life with proper protection from water.

Our experts added insulation to the rating due to the convenient form of release in rolls from 5.5 to 7 meters long. This is practical when filling walls in drywall partitions to immediately close the space from floor to ceiling and get by with a minimum of cuts. The thickness of 50 mm is well suited to the width of the profile.


  • meets hygienic standards (can be used in childcare facilities);
  • does not burn;
  • completely from natural materials;
  • elastic and does not require exact dimensions when cutting;
  • lets steam out of the house.


  • does not hold its shape well;
  • properties deteriorate when wet;
  • uncomfortable to lay;
  • average thermal conductivity.

Expert Tips

To insulate the walls in an apartment or in a house is not enough to obtain an effective result. Compliance with installation technologies is, of course, a prerequisite, but it will be of little use if an unsuitable or low-quality insulation was chosen.

Home masters who do not have experience and knowledge in the field of thermal insulation often make mistakes when buying material. Therefore, we have put together practical tips for you to help avoid them. They boil down to the following:

  1. Saving is not bad and even good, but only if it does not affect the quality. Remember that if the heat-insulating material costs much less than its counterparts, then this fact should make you suspicious. Ask the seller to show you the quality certificates for the products. And if he refuses to do this, then the purchase of the material should be abandoned.
  2. Don’t buy handicrafts. Some entrepreneurs and small producers make materials almost in the yard of their house. Due to significant savings in the funds required to finance the production process, such heaters will be cheap, but their properties will not and cannot be confirmed by any documents. Remember that handicraft production is controlled and regulated by nothing and no one. Therefore, think carefully before you buy material that is not known where.
  3. Be aware that the density of the insulation is not as important as the coefficient of thermal conductivity. Moreover, the heat capacity is dependent on the density indicators. The higher the latter, the lower the first. Therefore, do not be afraid of low strength values.
  4. Don’t forget that generic materials are always less effective than highly specialized ones. But in the case of heaters, this does not at all concern the possibility of using heat-insulating products in different types of premises. We are talking about a set of properties, such as a combination of: noise, steam, heat insulation together with moisture resistance and its simultaneous absorption, creating a comfortable microclimate and so on. That is, it is better if the insulation is focused on something more than the rest. Then the desired effect can be achieved more pronounced

The best polyester fiber insulation

Polyester fiber is produced by recycling plastic containers and other raw materials, which helps to preserve the environment. The result is multidirectional synthetic fibers that pass steam well, but delay heat transfer. In appearance and characteristics, the substance is similar to synthetic winterizer.

Shelter EcoStroy ShES arctic

Rating: 4.9


This is the latest product in the ranking, manufactured using MicroFiber technology. The insulation is obtained with multidirectional villi, creating an elastic layer with a constantly maintained shape. The effect of the firba is the easy passage of steam. Nanotechnology also managed to achieve a hollow structure of the villi, due to which the temperature is retained better and sounds are absorbed. The substance is hypoallergenic and has no phenol. According to environmental indicators, the purity is 100%. Thermal conductivity is at a minimum level — 0.031 W / (m * K), which buyers like in the reviews. The insulation does not rot and is not of interest to rodents.

Our experts have included the product in the rating as the best for warming a house in a cold region, which confirms the name «Arctic». 100 mm of this material replaces 125 mm of mineral wool in efficiency, so it will be possible to achieve high thermal insulation with a smaller layer thickness.


  • low thermal conductivity;
  • water-repellent properties;
  • does not rot and is not attractive to rodents;
  • service life of 50 years;
  • need less thickness compared to other materials.


  • high price;
  • weak, but supports combustion;
  • emits harmful smoke when ignited.

Air Twin

The Air Twin insulation system is an improved derivative of the classic padding polyester and holofiber. This is a unique technology, which is a 3D package of hollow voluminous and very light fibers. Special processing of the fibers allows to significantly increase the volume of the heat-shielding layer of air and at the same time reduce the weight of the clothing. In terms of its softness and thermal properties, Air Twin is as close as possible to natural down insulation, and surpasses them in ease of care and the absence of allergic reactions. The structure of the Air Twin contributes to the rapid removal of moisture from the human body, greatly increasing comfort during use. This new generation insulation provides the product with a great look and is actively used in Twin Tip demi-season outerwear.

Outerwear on a padding polyester Air Twin for cold winter weather

Isosoft (Isosoft)

Isosoft synthetic material is one of the most popular insulation materials in the textile industry. It is made from ultra-fine fibers that form a strong structure and is available in different densities, which allows it to be used in clothes for different seasons. Isosoft is lightweight, has good elasticity and softness, is easy to wash and dries quickly. On the surface of the isosoft, a two-sided spunbond coating is additionally applied, which prevents the displacement and deformation of the fibers during operation. One layer of isosoft in terms of its heat-saving parameters replaces four layers of traditional synthetic winterizer!

Outerwear with isosoft insulation from Belarosso