Insulation of the entrance door in a private house. How to insulate the front door Do-it-yourself insulation of a wooden barn door

If the door block is thin or has gaps, the room quickly cools and you have to spend a lot of energy heating it. Even a novice builder can insulate a wooden entrance door with his own hands. To do this, it is important to choose the right materials, as well as adhere to the installation diagram of the seal.

The need for insulation

Wooden structures have low thermal conductivity, but are sensitive to changes in air humidity and temperature changes. The canvas may dry out, crack and become deformed. There are several signs that indicate that You need to immediately insulate a wooden door:

Gaps appeared between the opening of the structure and the frame. When installing the door, all gaps are filled with foam. Under influence sun rays and other external factors, the foam deteriorates over time and begins to crumble.
Gaps formed between the sash and the frame. This defect occurs most often. The reason for the appearance of cracks may be poor quality wood, errors made during installation, filing of a swollen door, or prolonged use of the structure.
Damage to insulation. The material used for thermal insulation should be selected taking into account the conditions in which it will be used. For example, mineral wool It shrinks a lot due to dampness.

It is especially important to insulate a paneled door. This design has thin sections that can freeze through. They are first covered with rubber inserts, and only then the seal is laid.

Material selection

To insulate a wooden door in a private house, it is necessary to prepare a sealant, as well as decorative finishing elements that give the structure an aesthetic appearance. There are several types of materials intended for thermal insulation of fabric:

Foam plastic - suitable for insulating the inside of entrance doors.
Foam rubber is a porous, bulky material that can begin to crumble over time. To prevent spillage, the top is covered with artificial leather.
Mineral wool - does not catch fire, retains heat well. The material quickly absorbs moisture and rolls, sliding down.
Foamed polyethylene (isolon) - has a long service life and prevents cold from penetrating into the house. The disadvantage of isolon is low resistance to sunlight.
Polyurethane foam - the material is applied by spraying. It adheres tightly to the wood, filling even the smallest cracks. To work with polyurethane you need to use special equipment.
Expanded polystyrene - similar in properties to polystyrene foam, but has improved characteristics. When in contact with open fire, the material extinguishes.

When purchasing a seal, it is important to consider the thickness of the material. Thick layers make the doors heavier and do not allow them to close properly, and too thin layers do not provide the necessary protection.

To create reliable thermal insulation, it is also important to cover the gaps located around the perimeter of the canvas . For this purpose, material in the form of a tape is used:

The foam strips are fixed with glue. This seal is subject to wear and tear throughout the season.
Silicone tapes are resistant to moisture and have increased elasticity, but over time they become sticky and tear easily.
The rubber seal has a long service life. The material is resistant to mechanical stress, dampness and wear.
Thermoplastic - lasts the longest, but can cause installation difficulties.
Polyurethane strip - attached with a sticky base, its properties are not inferior to rubber.

As a decorative finish covering the seal, artificial leather is most often used, which is fixed with furniture nails with an extended decorative head. The canvas can be laid out from the inside MDF panels with lamination. The finishing of genuine leather gives the structure a noble appearance, but quality material is quite expensive.

Features of gap bridging

Before you begin laying the sealant, it is necessary to carry out preparatory work. It is important to check the condition door design:

loops that have become loose must be secured with elongated self-tapping screws;
if you plan to use heavy insulation, you need to install one additional loop;
align the distortions of the canvas, correct defects;
change broken locks, handles, latches, door peepholes.

When overlapping seams door block it is necessary to provide a vapor barrier. The gaps between the wall and the frame are filled with polyurethane foam, which is easily destroyed by the condensation that forms. To protect the material from outside it is covered with PSUL tape, and on the inside with vapor barrier tape.

Most of the heat escapes through the gap between the door frame and the leaf. The tape used must match the dimensions of the gap. To securely fasten the seal, you must perform the following sequence of actions:

Measure the parameters of the gaps and select the required tape.
Place a self-adhesive seal around the perimeter of the container.
Secure the silicone tape with a construction stapler.

If the gap widens in some places, which is often observed when the door is deformed, it is necessary to deepen the groove and align the edges of the leaf grinder. The deep groove is covered with 2-3 layers of tape. The seal is attached correctly if it fits tightly enough to the sash and does not prevent it from closing.

Achieve thermal insulation of joints door frame can be done using leatherette rollers filled with foam rubber. To do this you need:

measure the parameters of the sash;
Based on the results obtained, cut 4 strips of leatherette 10 cm wide;
the strips must be turned wrong side up and applied to the edges of the fabric;
in the area of the edge of the canvas, the leatherette is fixed with a construction stapler at one end;
foam rubber is placed under each strip in the form of a roller;
the free edge of the leatherette must be secured with a stapler.

Finishing the canvas

In order for a wooden door to protect the room well from the cold, a double-sided thermal insulation method is used. The sash is sealed both from the outside and from the inside, while on the street side a material is placed that can withstand adverse weather conditions. weather conditions. For inside The fabrics are most often finished with foam rubber and artificial leather. Warming occurs as follows:

the canvas is removed from the hinges, cleaned of worn upholstery and fittings;
a fragment is cut out of foam rubber, the dimensions of which exceed the parameters of the sash by about 10 cm on each side;
the insulation is secured to the edges of the door with a stapler, the excess should be trimmed with scissors;
the foam rubber is covered with a piece of artificial leather, and rollers are formed from its free edges, which need to be fixed with furniture nails;
the main plane is decorated with nails driven in at certain intervals, while the foam rubber bends beautifully between the fasteners;
the caps can be connected with wire or dermantine tubes;
When the work is completed, you need to install the fittings in place and hang the insulated door on its hinges.

If polystyrene or foam plastic is used as insulation, the lining is done with MDF panels. As a result, the volume and weight of the sash increase, so additional hinges may be required to strengthen the structure. Foam boards usually laid on the frame in the form of cells, and the remaining gaps are filled with polyurethane foam. To protect the insulated fabric from moisture, you can treat it with impregnation, varnish or paint it. Drying oil provides good waterproofing.

Insulating doors in your dacha allows you to create a comfortable atmosphere in your home. To ensure that the seal does not have to be replaced too often, you should select a material that is resistant to climatic conditions.

The front door in a private house is one of the main sources of heat loss. In order not to freeze in winter, you need to take care of its insulation in advance. In this article, we will look at what materials are best used as insulation (felt, foam rubber, polystyrene foam), how to efficiently and easily insulate a door with your own hands, cover it with leatherette and cover the cracks with self-adhesive tape.

There are several ways to insulate front door for the winter, the optimal option is upholstery. The following materials are used for this:

It may be noted that manufacturers of doors with thermal break use polystyrene as insulation. Such doors include the well-known line of “Nord” doors, which have positively proven themselves in the market, from the Moscow manufacturer of entrance doors “ProfMaster”.

We insulate an iron door with foam panels

Typically metal doors are made from sheet material, welded on the sides with corners, that is, they have voids inside that need to be filled from the inside for additional insulation.

The insulation technology is as follows:

Taking measurements door leaf(width and length) along which we will cut out a fiberboard panel to cover the foam layer.
We transfer the dimensions of the door leaf, the location and dimensions of the peephole and handle onto the fiberboard plywood, and cut out openings for them.
We apply the panel to the door, checking that all the marks are correct.

Insulation iron door foam plastic

With help sharp knife We cut out sheets of styrofoam to glue them to the inside of the door leaf. This insulation is glued using silicone, which is applied in a dense, uniform layer over the entire surface.

Advice! The thickness of the foam is determined by the size of the corner shelf.

Now you can cover the foam with a fiberboard panel. We put a bit on the screwdriver and screw the fiberboard to the door leaf with self-tapping screws.
The stiffening ribs of the metal door are made of a hollow tube; in winter it freezes and the effect of a “refrigerator” is obtained. To prevent this from happening, it is filled from the inside with polyurethane foam. To do this, a hole is made in the pipe with a drill, where foam is poured.

Attention! If you want to thoroughly insulate the wall, the cracks between the foam sheets can also be filled with polyurethane foam.

We insulate the front door with foam rubber

To insulate a wooden entrance door, with outside you can use foam rubber. To do this you need:

Remove the door frame from its hinges and place it on a flat horizontal plane, such as stools. Then remove all protruding parts of the door (lock, eye hole, handle).

Advice! Before insulating the door with foam rubber, cover the door leaf with an iron sheet to strengthen it.

Next, you need to make a base for the rollers necessary to plug the hole between the door and the frame. For doors opening outwards, 3 strips of leatherette 140 mm wide are cut out, of which the length of the first is equal to the length of the door, and the other 2 are equal to its width. Three strips are nailed with nails along the edge of the door frame, having first retreated 15 mm from the edge. The side on which the hinges are located is not upholstered. For doors that open inwards, 4 strips 140 mm wide are cut out and nailed on all sides.
You need to make bundles of cotton wool with a diameter of 30 mm, wrap them in leatherette, nailed at the bottom, and nail the resulting roller at the very edge of the door.
Next, foam sheets are laid on top of the door leaf.

Foam rubber

You need to cut the canvas out of leatherette according to the parameters of the door, plus 10 cm on each side. Lay the leatherette on top of the insulation and nail it, first the side corners, and then the bottom and top
Next, you need to make the remaining three rollers (this applies to doors that open outward) and nail them so that the upper edge of the upholstery overlaps the lower one.
Then you can nail the panel along the entire perimeter, ending with the edge on which the loops are located.

Advice! You can decorate the door leaf by nailing nails with caps in a specific pattern. This method of “decorating” the door prevents the foam rubber from settling.

At the end, you need to cut holes for all the protruding parts of the door, fasten the handle in place and you can hang the door back on its hinges.

Insulation with polyurethane foam

No less effective method How to protect a doorway from cold air entering - use polyurethane foam:

Foam gun

Buy a foam gun, medium size.
Apply construction tape to the border of the door, including the door itself, the frame and the wall.
Fill the inner and outer perimeter of the door with polyurethane foam, making sure that there are no voids left between the door frame and the wall.
Then use sandpaper and a knife to remove excess foam.
At the end, the joints are puttied and painted to match the color of the walls of the house.

How to use sealing gasket

A rubber gasket bridges the gap between the door frame and the door leaf. Such a gap remains even when closed position door, and up to 20% of the heat escapes through it. To prevent this you need:

Measure the perimeter of the door frame; this indicator will be equal to the length of the tape. The width is equal to the size of the contact point between the frame and the door leaf (rebate width), and the thickness is equal to the width of the gap between the door leaf and the door.

Advice! It is difficult to measure the width of the fold, but this can be done using plasticine. It is placed between the door and the frame and closed. After this, it is removed and measurements are taken.

We remove the paper that protects the sticky side from the sealing gasket and smooth it along the entire perimeter of the door frame rebate.

In this way, you can insulate the door by upholstering it with insulation and covering the joints with sealing tape. If these methods do not help, you need to check that the door leaf is installed correctly and that there are no holes in it. polyurethane foam, used during installation.

This article will help you figure out how to insulate a wooden entrance door. With your own hands, on your own, and without resorting to the help of professionals.

Basic methods of insulating a wooden door

Doors made of wood are very popular today. And it’s not surprising, because these products are coated with varnish, through which the design is visible natural wood, look impressive. Moreover, wood is more effective at holding thermal energy and, unlike metal, it is not cold to the touch. Be that as it may, even the most modern doors, for the manufacture of which noble breeds were used, dry out over time and begin to let in cold air currents.

Attention! If the home is new (or it is still under construction), then we advise you to purchase insulated doors made of wood, in which the panels already have insulation (expanded polystyrene or mineral wool). But if the door is already there and does not fulfill its functions, then you will have to start insulating it.

Table of thermal insulation properties of materials

	Material	Density in kg/m3	Minimum layer, cm	Thermal conductivity	Hygroscopicity
Roll	Glass wool	75-175	10-15	G	B
	Minvata	35-125	10-15	G	B
	Stitched mats	75-150	10-15	G	B
	Plastif	50-60	2	G	D
	Izover, URSA	35-125	10-15	G	B
	Penofol	60-70	5	G	IN
	Expanded polystyrene	30-40	10	D	IN
	Polyurethane foam	30-60	10	D	IN
Plate-sheet	Styrofoam	35-50	10	D	IN
	Mipora	25-40	10	D	IN
	From mineral wool and glass wool	75-250	10-15	G	B
	Woody-fibrous	250	1.5-3	B	A

Legend:

A - Very high.
B - High.
B - Average.
G - Low.
D - Very low.

Today, several methods of insulation are possible. You can:

secure the seal to the box;
upholster the canvas with insulation;
seal the opening using rollers.

Let's take a closer look at each of the options.

Option #1. Insulating a wooden door with your own hands

Another effective method, which we will consider step by step. But first, let's figure out what materials can be used for this.

Attention! During Soviet times, doors were often insulated with cotton wool, since this material had excellent thermal insulation characteristics. But cotton wool also has a number of disadvantages.

Thus, the main disadvantage is that cotton wool perfectly absorbs moisture, and therefore harmful microorganisms quickly multiply in it (cotton wool). Yes, and the service life of this material not too big - no more than two to three years. But today the range is wider, and for insulation you can resort to one of the options below.

Foam rubber. This is good and practical material, characterized by ease of installation. Although it also absorbs moisture, which is why it soon crumbles and has to be replaced.
Izolon. The insulation is of synthetic origin, which, despite its insignificant thickness, has excellent thermal insulation properties.
Minvata. For its manufacture, synthetics or basalt are often used, therefore, this material does not rot. But it does not provide visual volume; moreover, it quickly sags under the upholstery material.
Styrofoam. Lightweight material that holds its shape well. It is characteristic that the algorithm of actions when insulating with foam plastic is somewhat different than when using the materials mentioned above, and therefore will be considered separately.

We also note that in addition to the insulating material itself, you will need decorative upholstery for work, which can be used as leather (natural/artificial origin) or leatherette.

Step-by-step instruction

Now let’s look at how to insulate a wooden entrance door. The sequence of actions is given below.

Step one. First you must determine the dimensions of the door leaf. To this end, step back 10 millimeters from all its ends, then determine the height and width. It is typical that if you plan to insulate the side adjacent to the box, then you should retreat from the walls of the box and only when the door is closed.

Step two. After this, you need to remove the canvas from the loops, place it on a flat surface (preferably on trestles or big table) and dismantle all fittings that will interfere with further work.

nail it down with nails;
stick;
secure with construction staples.

The insulation is covered with upholstery material, and the dimensions of the latter should be slightly larger than the dimensions of the canvas itself.

Step four. Leatherette can be attached both from the middle and from one of the sides. If a stapler is used (this option is preferable), then this should be done where the canvas is free of insulating material (for this purpose, an edge of 10 millimeters is deliberately left). It is typical that this procedure requires an assistant - he will stretch the upholstery and level it. This way the material will lie flat and there will be no folds or wrinkles left.

Step five. Next, a roller should be filled around the perimeter of the canvas - this way the structure will not only retain heat more effectively, but also look more presentable. Strips of wrapped insulating material are used as a roller. Having rolled up such rollers, they are nailed along the entire perimeter of the door using furniture nails. During the process it is important that:

from the vestibule and in the upper part the roller protruded approximately 0.5 centimeters;
in the lower part it was as close as possible to the threshold;
from the hinges located strictly along the edge.

Decorative component

If you want to somehow decorate an already insulated door, then use chalk to draw random patterns on the upholstery material. geometric figures, then hammer furniture nails into the corners.

Video - Door trim

Attention! After all work is completed, replace all additional fittings.

Using foam plastic in work

As promised earlier, we are considering how to insulate a wooden entrance door using polystyrene foam as insulation. This is quite simple to do - you just need to cut out a piece of material, the dimensions of which would be equal to the dimensions of the canvas (or box, if you plan to insulate from the inside), cover it with upholstery material and fix it on the doors using liquid nails.

Although there is another option. You can nail thin slats around the perimeter, the thickness of which would be equal to the thickness of the insulation, and fix the insulating material between them. Next, all this is sheathed with fiberboard or clapboard.

Attention! In the second method, the entire structure will become heavier, which may result in the need to install additional hinges.

Option #2. How to seal a door frame

IN in this case insulation consists in a tighter fit of the canvas to the box. Because of loose fit cracks may form in the piping, through which cold air currents actually penetrate into the home. And to get rid of these cracks, you will need a sealing material, which can be either “store-bought” or made by yourself.

So, the tape should be nailed to the box so that it touches the canvas when closing it. So how to insulate a wooden entrance door using this technology? Very simple. First, determine the thickness of the slots, the perimeter of the door frame itself, and also the width of the folds - the areas in which the canvas touches the structure and where, in fact, you will glue the tape. This is necessary to find out the required volumes of materials.

As already noted, the length of the sealing tape should correspond to the perimeter of the box. The width should correspond to the same folds, while the thickness should correspond to the gap between the structure and the canvas.

Attention! When doing this, you must take into account the compressed thickness of the material!

Regarding the procedure for gluing the tape itself, everything is quite simple: first, pieces of the required length are cut, after which the seal is gradually pressed against the folds, and the paper on the back side of the material is still gradually removed.

Option #3. We seal the doorway using rollers

It may happen that it will not be possible to remove the door leaf from the hinges. In such cases, for insulation (if, for example, cold weather has already set in), you can use the same roller. To significantly increase the thermal insulation properties of the structure, nail it directly to the door frame.

This must be done according to the same scheme as discussed above. It is only important that the location of the roller be calculated as accurately as possible, so that the door leaf adjoins it when closed.

As a conclusion

So we looked at the main ways to insulate a wooden entrance door. Of course, not all of the described methods give a 100% effect, and each of them also has its own disadvantages. However, if you have not previously purchased insulated doors, then this is the only way to spend the cold winter in warmth and comfort. Now you know how everything needs to be done, so get to work. Good luck!

The greatest heat loss in the cold season occurs through doors and windows. Therefore, to preserve heat, as well as to save money, insulating doors is important. Doing this yourself is not at all difficult.

All input street doors, sold on the market, are initially equipped with a layer of insulation during production. But if you have an old wooden door installed at the entrance, or the insulation is worn out and does not fulfill its functions, then it makes sense to think about insulating it yourself.

There are several options for how to insulate a wooden door:

using a seal;
sealing with rollers;
upholstered with insulation.

The seal is relevant when the door leaf does not fit tightly to the frame and cold air blows from the cracks, although the door itself retains heat well.

Rollers are used together with upholstery or as independent method heat preservation.

Upholster the street side of the door country house or a city apartment you can different materials. The following can act as insulation:

mineral wool;
Styrofoam;
expanded polystyrene.

Foam rubber is practical, inexpensive and easy to work with. But its disadvantages are the absorption of moisture and the tendency to crumble after some time after use.

Isolon is more expensive, but superior to foam rubber in quality. It is characterized by excellent thermal insulation characteristics.

Mineral wool does not rot, but tends to bunch up under the upholstery and lose volume, which negates the visual appeal of the structure.

Polystyrene foam and polystyrene foam are lightweight and shape-retaining materials. But their method of insulation differs from the above.

Do-it-yourself insulation with sealant

Taping a door in a private house or city apartment around the perimeter with special insulation will strengthen the pressure and block the access of cold air inside the room. It is a rubber tape with an adhesive base, which is glued at the point of contact of the canvas with the box (folds).

Before starting work, you need to determine how much material will be needed. To do this, measure the width and height of the door leaf and calculate the perimeter. In addition, when calculating the amount of material, the thickness of the slots and the width of the folds are taken into account.

It is very easy to apply the tape yourself. To do this, the paper is gradually peeled off from the sticky side of the seal and pressed against the folds of the door frame.

Previously, this method of insulation was implemented using leatherette, folded several times and nailed with small nails to a wooden box.

The only drawback of this method of heat preservation is short term services. The tape on the door of a country house will not last more than one season.

Sealing a door in a private house or apartment with rollers

Do-it-yourself insulation with rollers is used together with insulation of the entire door leaf and how independent measure to keep warm. The second option is relevant when there is no possibility or desire to remove the door from its hinges.

Rollers are stuffed around the perimeter of the door leaf on the inside so that the doors retain heat better and look presentable. They are made from insulation that is wrapped in decorative material which is used for upholstery. The bolsters are nailed into place with furniture nails.

In order to insulate the door with your own hands using rollers correctly, keep in mind that on the hinge side they must be nailed exactly along the edge. From below, the rollers should be adjacent to the threshold, and from above and on the side of the lock, they should protrude by 4-5 mm. It is not worth nailing the roller onto the threshold, as it will quickly become unusable.

Upholstering the door of a country house or apartment with insulation

For upholstery, in addition to the insulation itself, you will also need the material that will be used to make decorative finishing. This may be leather, its substitutes or other suitable materials. In order to determine how much insulation is needed, you need to measure the door leaf. To determine the width and height of the door, if the street side is sheathed, 1 cm is deviated from the end. For interior finishing, measurements are taken in the closed position of the door, 1 cm deviated from the frame. For the best effect, experts recommend insulating the canvas on both sides.

Before you start insulating it yourself, you need to prepare the door leaf. To insulate it, you need to remove it from its hinges and dismantle all the fittings: handle, lock, peephole. The old coating is removed, treated with an antiseptic mixture and degreased. The canvas is laid on a horizontal surface and the insulation is fastened. Depending on the material chosen, glue, small nails or metal staples are used. On top of the insulation is attached upholstery, which should be a little larger in size.

The leatherette is secured with a stapler and staples along the edge of the door leaf. For this purpose, 1 cm around the perimeter was left free of insulation. In order for the decorative material to lay flat and without folds, it is worth involving an assistant in the work.

Rollers nailed around the perimeter after insulation will improve appearance and help keep you warm. Their manufacture and fastening with their own hands is described above. You can decorate the door of a country house or city apartment by applying a chalk pattern to the upholstery on the street side and driving in furniture nails. Between them you can stretch a strip of leather or fishing line.

After finishing the work, the fittings are returned to their place, and the structure is hung on its hinges.

Foam insulation

Insulating a door in a private house with foam plastic is possible in two ways. When finishing the street side, you can cut it so that the dimensions fully correspond to the dimensions of the canvas, cover it with leatherette and glue it with liquid nails. Insulating the canvas from the inside, the foam is cut to fit the opening of the box.

The second method is to nail it with your own hands around the perimeter of the box wooden slats. Foam plastic is inserted into the resulting space, and the structure is sheathed with clapboard or other suitable material. The thickness of the lath should be the same as that of the foam. But this insulation option has one drawback. The weight of the structure will increase and additional hinges may be required.

Knowing how to insulate a wooden entrance door, you can easily cope with this work yourself, thereby maintaining warmth in the house.

A modern metal entrance door is actually complex design, where iron is just a shell. The cavities of the leaf can be filled with insulation, since the main function of the door is to retain heat. But there are often heat leaks, not only in private houses, but also in apartments. In addition, inexpensive metal doors have ordinary tin as a body, and instead of insulation - cardboard honeycomb.

Reasons for heat loss in the house:

Thin walls. Walls built in the classical way several decades ago, which do not have insulation, begin to freeze over time. As a result, the thermal insulation of the house deteriorates.
Cracks and crevices. When a heavy structure shrinks, cracks form on the walls, which over time, if you do not pay attention to them, turn into huge gaps. Such gaps are also called cold bridges.
Technical openings(old doors and windows). Over time, the wood dries out, thereby forming colossal gaps where the boxes are installed. Windows that are not properly insulated are one of the key sources of heat loss. And the door, if it is made of sheet metal and does not have necessary insulation or a low-quality Chinese design, inside which there is cardboard instead of a heat insulator - this is the direct cause of colossal heat losses.

A metal door that does not have proper insulation is a direct source of cold in the house

That's why Door insulation is an important component of thermal protection of the entire house. But before you implement your idea, find out the exact reasons for the loss of heat, so that you don’t end up wasting time and energy on insulating the doors, and the reason for the uncomfortable microclimate lies in the cold bridges formed through the cracks in the house.

Important! The thickness of the iron door leaf is not an indicator of the thermal insulation of the door. A thick layer of metal is, first of all, protection against penetrations and only then a heat insulator (provided that there are no cracks in the structure).

Sometimes heat can be lost not through the leaf, but through the cracks of the iron door frame

Choosing insulation

The insulation on the door not only protects the room from the cold, but also insulates the rooms from extraneous noise, which is quite important in apartment buildings. Therefore, when choosing a ready-made door structure, you should inquire about its contents.

Penofol

Penofol equipped with a reflective foil layer, thanks to which all the heat remains indoors. But, as a rule, it is used only as an auxiliary insulating material.

Rigid (sheet) insulation

Sheet heat insulators (penoplex, polystyrene foam, etc.), good for ease of installation and low cost. Since the material is not hygroscopic, it is not necessary to attach a vapor barrier and moisture-proof membrane when installing it.

When choosing rigid insulation, give preference expanded polystyrene (penoplex). He significantly denser and stronger polystyrene foam, besides insulates more effectively.

Soft (rolled) insulation materials

Rolled or sheet soft thermal insulators include glass wool and mineral wool. They differ only in the base; their thermal insulation characteristics are approximately the same. Material environmentally friendly, non-flammable, allows you to independently choose the installation height, eliminating additional trimming. These advantages make cotton insulation especially popular.

Illustrative examples of heat loss

The material is sold in rolls or slabs. Elements of any shape and size can be cut out of rolled wool, and to reduce the thickness of the insulating layer, simply press and fix the material.

Vata deficiency - high hygroscopicity. The material is afraid of moisture and if the insulation absorbs water, it loses its heat-protective properties. Experts do not recommend using this insulation for doors, since with a high contrast of external and internal temperatures, the likelihood of the insulation getting wet is extremely high. However, the option is quite acceptable for the entrance door to an apartment.