Insulation of the doorway. Insulation of a metal entrance door - proper thermal insulation with your own hands. How to upholster wooden doors with insulation

As many already know, metal doors not only provide security, but also protect residents from external noise and cold. That is why the question “how to insulate an iron entrance door” is now more relevant than ever.

A metal door is a fairly simple structure, assembled from a frame and welded to it metal sheet. As a rule, there remains a small gap between the frame and the canvas, about 7-8 mm in size.

Some may think that insulating an iron door with your own hands can be done with simple insulation and, as they say, without reinventing the wheel, but if you look at the issue from a professional point of view, then this is just small step to create a cozy and warm atmosphere in the house.

We insulate the door with foam panels

So, to fully understand all the intricacies of this difficult question, we will try to tell you about everything in order.

Necessary tool

Before you start insulating the door, prepare the tools you will need for the work:

Rolled insulating foam;
Foam panels, the thickness of which corresponds to the thickness of the metal profile;
Jigsaw;
Set of drills (for metal);
Several bits (installed on a drill or screwdriver);
Medium grit sandpaper;
Marker;
Roulette;
Screwdriver;
Ruler;
Drill and screws;
Sealant or silicone;
Fiberboard sheet;
Screwdriver and drill;
Self-adhesive paper or film.

Important!
When purchasing all the components for door insulation, pay attention to foam plastic - it should be of high density. This is a necessary criterion that affects the quality of insulation.

Work plan

Well, we’ve figured out the tool, now let’s move on to the question of how to insulate an iron door in a private house.

This instruction will tell you step by step what to do and how to do it:

First you need to measure the height and length door leaf. This is necessary in order to then cut out a sheet of fiberboard that will completely cover the insulation;
We transfer the obtained dimensions to the fiberboard sheet;
We mark the location of the lock and peephole on a sheet of chipboard and cut out the corresponding holes for them;
We attach finished part to check the size ratio and compliance of all necessary holes;

The next step is to fill the door with foam panels. In order to cut the insulation for an iron door, we use a knife.
We do not spare silicone and apply it in a rich layer on inner part doors (this measure is necessary to prevent the panels from falling out);

Now, you need to screw the fiberboard into place. We insert a special bit into the screwdriver and use self-tapping screws to screw it to the door.

Attention!
In order to screw a fiberboard sheet to metal, you do not need to drill any additional holes.
Self-tapping screws are drilled into the metal themselves and do not require preparatory work Oh.

We tighten the screws along the entire perimeter of the sheet. The most important thing in this matter is that the sheet of plywood lies tightly, without swelling;
Now you need to take a knife and plan off the excess edge that protrudes slightly beyond the profile;
The last step is to take medium-grain sandpaper and carefully grind down the edges of the fiberboard so that the structure has an attractive and finished look.

Advice!
Do you want to thoroughly insulate your door?
In this case, even small gaps between the foam and the gaps between the stiffeners need to be filled polyurethane foam.

The door stiffeners, since they are made of metal, will keep the cold in. Profile pipes and corners freeze in winter and create an unpleasant refrigerator effect.

To avoid this, it is necessary to fill the stiffeners (tubes) with polyurethane foam. In order to do this, you will need a drill, which makes a hole in the profile pipe. Then the pipe is filled with foam.

Door insulation with foam rubber

You can insulate an iron door with your own hands using foam rubber, since this material is a good heat insulator. Surely, many people think that by gluing rubber to the door as a seal, they will be able to get rid of cold and drafts once and for all - this opinion is wrong.

Unlike the same window, the door does not have gaps on which rubber can be glued, which is why, after gluing it, serious problems with closing and opening the door may arise.

Procedure

In order to properly insulate iron doors with your own hands using foam rubber, you need to follow a simple step-by-step procedure:

The first thing to do is unwind the foam roll;
The next step is to remove the protective film and stick foam tapes to the door frame profile;
If the foam rubber turns out to be thicker than the gap, you should cut off the edge of the foam rubber at a slight angle.

We insulate the canvas

How to insulate an iron door from the inside? What does that require? In this matter, much depends on the type of canvas - whether it is collapsible or not. If the canvas is disassembled, then any insulation you like can be safely placed inside the structure.

Note!
The material used as insulation can be either hard or soft.

The same polystyrene foam, polystyrene foam, etc. are used as rigid insulation. It is customary to select solid materials according to thickness - that is, buy the same foam plastic of such a thickness that it fits comfortably inside the door.

If you are concerned about the question - how to insulate an iron entrance door if it is not possible to purchase rigid insulation? The answer is simple - use a soft type of insulation. When choosing this type of material, you should take care of waterproofing the door in advance.

Due to temperature changes, drops of moisture (condensation) form on the inside of the door, which over time moistens the soft insulation. And under the influence of moisture, it simply ceases to prevent the penetration of cold.

Also, when wet, the structure of the soft insulation will collapse, and your home will experience bad smell dampness, and the material itself will threaten the integrity of the metal door. Due to prolonged exposure to moisture, traces of corrosion may appear on the inside of the door.

In order to prevent such consequences, it is necessary to cover the soft insulation with a film, which in turn will play the role of a waterproofing agent.

If your metal door is non-removable, then you can use another option - fill inner emptiness doors bulk heat insulator. But it’s worth mentioning right away that this option is only available in simple doors, in which there is no crossbar locking system.

If there are crossbars, bulk insulation must not be used under any circumstances! Thus, you can block the crossbar system completely and irrevocably! A door with deadbolt locks can only be insulated from the outside. For this, experts recommend using elastic insulation, such as foam rubber, etc.

The main drawback external insulation doors - unaesthetic appearance. To hide the insulation, professional builders use plastic panels or wooden coverings.

Often as decorative insert You can find high-quality plywood, which acts not only as a decorative element, but also as an insulation element.

We insulate the door frame

So, in this case there is one significant and important question - how can you insulate the door frame? For this, a special solution is used, which, after insulating the door, is applied along the entire perimeter of the door frame in the shape of the letter “P”.

If such actions have not been carried out in advance, then special holes must be made in the door frame and polyurethane foam must be poured into them. Also, as insulation, you can use bulk insulation, which is poured into pre-prepared holes from above.

As for the cracks

The last stage in the process of insulating the door can be called gluing a rubber or foam seal around the entire perimeter of the entrance group (at the joints). Rubber seal is the most popular and preferred material, as it has a high level of wear resistance.

To eliminate cracks, you need to buy the thinnest seal, so that in the future you will not have problems closing the front door.

The price of insulation is not high. According to rough estimates (even if you buy the most expensive one), you will have to spend no more than 2,500 rubles.

Attention!
To maintain the maximum amount of heat in the apartment, many of our fellow citizens, in addition to ).

Conclusion

That's basically all you need to know home handyman. Using the same principle, you can insulate the loggia and insulate plastic windows. These tips and recommendations are intended for ordinary person, who has practically no skills in construction and repair, so there is no need to be afraid to take on the work with your own hands. In the video presented in this article you will find Additional information on this topic. Good luck!

Proper insulation of a wooden entrance door provides excellent protection of the home from the cold and helps with sound insulation. Let's figure out how to do the job yourself.

Entrance door structures are a shield that protects the house and its inhabitants from many external influences. Therefore, they must be reliable and durable, and in addition, have special characteristics that guarantee protection of the home from extraneous odors and noise, from frost and excessive heat.

Experts recommend insulating the front door of a house in the following cases:

the appearance of the product has become unattractive;
the old insulation was installed poorly or was worn out during the operation of the door;
the structure was not initially insulated.

Wooden structure without insulation

The cost of purchasing them will be fully recouped by the comfort in your home.

And if you carry out all the activities yourself, you will have to spend a minimum of financial resources on updating the insulating layer.

Currently, insulation of wooden doors is carried out using the following materials:

Foam plastic is ideal for thermal insulation of doors from the inside, characterized by low cost and quite attractive appearance.
Foam rubber is an inexpensive porous material. It is very popular among residents of rural houses due to the ease of installation. Foam rubber can safely be called the most budget view insulation.
Mineral wool - good material(guarantees high level thermal protection, rodents and insect pests do not grow in it), which, unfortunately, has several serious shortcomings. These include the ability to accumulate moisture and subsidence of mineral wool over time.
Izolon is a foam type polyethylene, one of the types of ordinary foam rubber with higher thermal insulation rates for rooms. Its cost is higher than that of ordinary foam rubber, but it also provides more durable and high-quality insulation.
Polyurethane foam is perhaps the best insulating material today, which can also be used in rural house, and in a city apartment. Disadvantages - high cost and certain complexity of application to wooden surface(processing is carried out by spraying, which requires certain skills).
Expanded polystyrene is a material that extinguishes itself when a fire occurs. It contains air in large volumes, which determines the excellent thermal insulation characteristics of polystyrene foam.

Materials for door insulation

Insulation can be carried out with any of these materials, focusing on the climatic conditions in a particular area and your financial budget.

Do-it-yourself thermal insulation measures will bring minimal effect without necessary preparation doors. It is necessary to carefully analyze its condition for wear and installation defects. Based on this inspection, perform the following actions:

purchase accessories in advance if there is a need for replacement door peephole, locking mechanisms, handles and so on;
replace the hinges or tighten their fastenings in cases where the doors do not close well, are distorted or sagging;
trim the door leaf using a plane if adjusting the hinges did not lead to the expected result due to significant play in the structure.

Adjusting door hinges

It is also necessary to update the door seal when between door block and the wall formed significant gaps. If they are relatively small, it is recommended to carefully seal the cracks.

Then you can remove the old coating from the entrance wooden structure of the house, apply a good antiseptic composition to the canvas to increase the service life of the product, and proceed directly to insulation. With our tips, you can easily do this procedure yourself.

The first step is to cut out the insulating material you have chosen with your own hands. When thermally insulating a solid door leaf, it is necessary to cut off a piece that clearly matches the geometric parameters entrance structure. If you are insulating a collapsible door, first of all, part of the material is cut out for its internal sections. Such sections are present on the canvas due to the fact that it has special stiffening ribs - internal crossbars made of wood.

After placing the heat-insulating material on the door, you need to upholster it with some kind of decorative material. In a rural home, leatherette is often used for these purposes - an inexpensive and visually attractive material. You can also use more expensive products, for example, made from genuine leather.

Door upholstery with decorative material

The insulation itself is attached to the door leaf different ways. When doing the work yourself, you can use:

small upholstery nails;
self-adhesive films;
glue.

After installing the insulation, you will immediately feel the result of the work performed - the house will become much warmer even in severe frosts. At the same time, it is advisable to install seals that ensure a high-quality fit between the door frame and its wooden leaf.

This procedure is done simply. You will need to buy a sealant in the form of tape from a hardware store. It is usually made of rubber and equipped with a self-adhesive backing. Simply choose a seal of the thickness you need (it is determined by the size of the gap between the frame and the leaf), clean the junction of these door elements from dirt and dust, and then mount (stick) the tape into the gap.

You have completed high-quality thermal insulation of wooden doors with your own hands. Enjoy the warmth in your home!

The metal entrance door, the most reliable and durable design, has one significant drawback - a high level of thermal conductivity. This means that it cools quickly when sub-zero temperature, allows external cold to pass through and does not hold well internal heat. Due to the interaction of internal and external temperatures, condensation appears on the surface. As you know, moisture is one of the causes of premature corrosion that can destroy a metal structure. The only way to eliminate this drawback is to reduce thermal conductivity through insulation. How to insulate metal front door, and what materials better use for this purpose, we will consider in detail in this article.

The choice of thermal insulation material will depend on the location of the door itself (inside the entrance or outside the house). You can consider the cheapest options, such as corrugated cardboard or sawdust. But they are not suitable for outdoor structures: when moisture gets in, their heat-saving properties are greatly reduced. If you are looking for the most durable way to insulate a metal entrance door, you need to take into account the properties of heat-insulating materials:

Foam rubber is recommended for insulating structures located in a warm entrance or vestibule, since they are unstable weather lead to rapid destruction of the insulation.
Mineral wool is prone to increased water absorption. When installed in doors leading to the street, it requires an additional insulating layer that will protect against moisture. When used for internal insulation, non-sheet material tends to move over time to the lower part of the structure, which increases the thermal conductivity of the upper section of the door.
Polyurethane foam is resistant to all natural phenomena: humidity, cold, heat. It has a long service life and is not prone to deformation. It is used as internal insulation, but its installation requires certain skills.
Izolon – roll material. It has an adhesive layer, which facilitates the installation process. Can be used for internal and external insulation.
Foam plastic is resistant to moisture and deformation. A significant disadvantage of the material is its susceptibility to combustion.
Polystyrene in its structure resembles foam plastic, however, due to the special composition of this material, its flammability properties are noticeably reduced and its durability indicators are improved. Insulation of a metal door with polystyrene can be done both from the inside and outside of the structure.

Internal insulation

How to insulate an iron entrance door from the inside? First you need to familiarize yourself with its design. Standard collapsible design the insulation layer will be located between steel sheet and decorative panel. Internal insulation A metal entrance door with a permanent structure is a more complex process.

Insulation of collapsible metal entrance doors is carried out in the following order:

Remove from the door leaf all fittings that may interfere with the process of disassembling the structure.
The structure must be disassembled; to do this, remove the decorative panel to gain access to the internal cavity.
Remove the old insulation, if there was any.
All cavities are filled with prepared thermal insulation material. Elements sheet insulation it is necessary to cut with a small margin so that they tightly fill all the voids.
For a strong fit, the layers of insulation are placed on glue or liquid nails.
If at the final stage of work an unfilled space is discovered, it is filled with polyurethane foam.
Next, you need to make sure that there is free space left to install the lock and peephole, after which decorative panel returns to its place.

How to insulate an iron door from the inside if the design does not allow for dismantling it? In order not to violate its integrity, it would be better to use an external insulation option. For internal filling of the cavity of a steel door, granulated thermal insulation materials: Styrofoam or polystyrene balls. The card is cut off at the end of the door, after which the insulation is poured into the internal cavity. To ensure that it is evenly distributed, you should shake the structure from time to time. This method of insulation is absolutely not suitable for doors with anti-burglary locking bolts: loose filler can get inside the system and block the parts.

External insulation

External insulation of an iron door is carried out directly on the surface of the door opening into the room. The materials used are the same as for interior upholstery. Do-it-yourself thermal insulation of a door can be done in two ways.

Thermal insulation using a slatted frame. After all the fittings have been removed from the door, a rack frame is attached to the door leaf with self-tapping screws (or welded metallic profile). Inside the frame, the entire cavity is tightly lined with heat-insulating material, which is fixed with glue or liquid nails. On top of this entire structure, a sheet of fiberboard, pre-cut to the size of the door, is attached with self-tapping screws.
Upholstery heat-insulating material– good, less the hard way insulate a metal door with your own hands. To work, you will need insulation, upholstery material, and glue. The door is removed from its hinges. A layer of glue is applied to the cleaned surface, after which the insulation is laid. The thermal insulation layer is masked upholstery fabric, which is tightly fixed with glue around the perimeter of the sash. To ensure that the upholstery holds tightly in the future, the gluing points are pressed with a weight until it dries.

Instructions for thermal insulation of doors using wooden mortgages

Installation of a slatted frame Foaming the gaps between the metal and the timber Filling the seams between the insulation with foam

Insulating an iron door with your own hands using wooden mortgages is a feasible task. Mortgages are bars that are necessary to hide the internal filling of the door. They are located around the perimeter of the sash and along its central part. In the place where the lock will be mounted, it is necessary to install additional bars. The fixation method is chosen depending on the material of the structure. If the frame is made of angles, you must pre-drill the holes. IN profile pipe Self-tapping screws for metal can be screwed in without drilling. The size of the screws should exceed the width of the block by 5 mm.

The next stage of work is to fill all the gaps between the metal and the installed beam, after which you can lay the insulation of your choice. The main condition for high-quality insulation is that the thickness of the material is equal to the depth of the door cavity. So that the insulation does not move from its place and does not fall out during installation external cladding, it should be placed on glue.

The seams between the individual layers of insulation must be filled with foam, after which the door is left for several hours. After the foam has completely dried, it is necessary to cut off its excess and cover the door on top of the insulation with a pre-prepared panel or slats.

Insulation of seams and joints

When the insulation of metal doors is carried out according to all the rules, but the cold still seeps through the cracks, it is necessary to strengthen the tightness of the seams and joints. The gap between the frame and the wall is filled with polyurethane foam. After hardening, all excess that protrudes outside is cut off flush with the door frame. In order for the polyurethane foam to retain its sealing properties for a long time, a layer of plaster must be applied on top of it or covered with platbands: this material is very sensitive to light and quickly deteriorates. In addition to polyurethane foam, rubber or silicone sealant can be used to fill the seams.

Another “gate” for the cold is the place where the door leaf meets the frame. To ensure tightness, the perimeter of the box is insulated with rubber, foam rubber or isolon sealant. Parts can be cut to fit the door, or used ready material, which can always be found in construction stores. The insulation is a tape that has an adhesive layer on one side, so you can insulate a metal entrance door with a seal in a few minutes, but do not forget that the seal, no matter how high-quality it is, wears out over time. It is necessary to check its condition from time to time and replace it as necessary.

The entrance area and windows in any room are the largest heat-transmitting surface. And if it is possible to solve the problem of heat loss with windows by installing double-glazed windows, then you will have to work with the entrance. When starting any renovation or construction, you need to immediately decide how to insulate the front door, regardless of the material from which it is made. This applies to both metal and wood. In the article we will describe popular thermal insulation materials, methods of insulation and decoration.

Insulation methods

Modern entrance metal and wooden structures are already on sale with thermal insulation. Another question is that the thickness or quality of the material is not enough to retain heat in the house (Chinese models mainly suffer from this). Also, preparatory work is required for custom-made items, which are initially produced only in the form of a canvas with a box.

In total there are 3 main options:

end sealing;
use of rollers;
insulation for doors.

What is used for thermal insulation

The sealing of the ends and the rebate is used in any case if it does not fit tightly and air movement is felt. Even an insulated door without a seal will let in cold air and heat will begin to escape through it.

Rollers can be used both as an independent element and for upholstery with decorative or insulating materials.

Thermal insulating upholstery is applied with inside, decorative - from the outside or both. Depending on what material is used, the finishing method is chosen.

Thermal insulation:

foam;
isolon;
mineral wool;
Styrofoam;
expanded polystyrene.

Decorative:

leather;
vinyl;
leatherette;
leatherette, etc.

It is very easy to work with foam rubber - the finished sheets are attached to the panel and secured on top with strips. But inexpensive material accumulates water, which creates cold bridges. In addition, mold can form under the foam rubber.

Izolon is structurally similar to foam rubber, but does not absorb water as actively and does not crumble during operation. They fasten it in the same way as foam rubber.

Mineral wool is more preferable for insulating a structure, but over time it will begin to clump and sag, gradually as if flowing down. It is advisable to first fill the beads on the inside in the form of small rectangular sections and then insert mineral wool plates into them. This will prevent loss of volume and will not create cavities.

Polystyrene foam and expanded polystyrene are very light plates that hold their shape and have good thermal insulation properties, but when burned they emit extremely toxic substances.

Polystyrene foam and expanded polystyrene crumble heavily when cutting sheets. This can be avoided by using hot wire. Cutting work in this way is carried out outdoors or in a well-ventilated area.

How to insulate a door with a sealant

Let us repeat, this is a mandatory measure for anyone input element, where it is observed loose fit flaps to the box. The seal completely closes the gaps through which cold air passes, strengthens the pressure and makes the closing process quieter. Structurally, it is a tape, one side of which is covered with an adhesive layer, and the other is made in the form of a rubber or foam pad.

The rubber seal is of better quality and lasts longer due to less damage and less compression. The service life of foam rubber rarely exceeds 2-3 years and this is due precisely to the soft structure of the foam rubber, which can come off and bend in some places.

Before you start gluing, you need to measure the perimeter - the width and height of the canvas and with this calculation, buy the required footage of the tape. Before purchasing tape, be sure to consider not only the perimeter of the box, but also the thickness of the rebate and slots.

For reference. The door ledge is a 3-5 cm thick strip that acts as a continuation of the door leaf and extends onto the frame itself.

The gluing process itself is very simple:

degrease the places where it will stick;
starting from the bottom, carefully separate the paper from the sticky layer in small sections and, pressing, fix the tape.

Today, with the advent of adhesive tape, it has become very easy to isolate cold bridges, whereas previously in the same places it was necessary to nail down pieces of leatherette folded in several layers with small nails.

For greater effect, you can glue soft tape to the edge of the box.

Sealing with special rollers

Insulating the front door with rollers allows you to perform 2 tasks at once - to close the cracks through which it leaks, and to decorate the panel. The cushion is a soft seal that is wrapped in upholstery material. The rollers are rolled in small portions and nailed on the inside.

Currently, this method is not as popular as it was in Soviet times, but it is in a great way for sealing entrance doors.

The upholstery process looks like this:

prepare the material - the seal is wrapped in leatherette;
from the inside they nail it with nails strictly along the edges of the canvas;
in the lower part, make sure that the rollers protrude half a centimeter.

VIDEO: What is the difference between insulated metal doors and wooden doors

Working with insulation

Insulation for doors is selected based on budget, door material and estimated service life. It is easiest to work with polystyrene foam (read about this below), but it will be better to use isolon or mineral wool. After fixing, the door insulation must be covered with a finishing material - leatherette, leatherette, vinyl, etc.

First, determine the required quantity - measure the perimeter and add 1 cm from each edge.

It is best to insulate the front door on both sides - this way you can completely eliminate heat loss and save on heating costs. Finishing, accordingly, is also carried out outside and inside.

Work process:

Remove the fabric from the hinges and lay it horizontally.
Unscrew all fittings - hinges, handles, brackets, etc.
Clean the surface from dust and dirt and degrease it.
If the insulation for doors is mineral wool, make a mesh on the inside of thin glazing beads with an edge size of 15-20 cm. For foam rubber and isolon, this is not required.
Depending on its type, the insulator is secured with nails, construction staples or glue.
Leave to dry for several hours and nail down the finishing decor. A construction stapler works best for this purpose - quickly, reliably and very easily.

For additional decoration outside You can mark diamonds with chalk, hammer in decorative nails at the joint, and stretch a strong fishing line between them. IN in this case an insulated entrance door will look aesthetically more attractive.

Screw on the fittings and return the structure to its place.

The process of working with foam plastic

There are 2 equally effective ways:

fixing the plates from the outside or inside and upholstering with leatherette (leatherette, vinyl, etc.);
filling sections with glazing beads and installing cut pieces of foam with subsequent decorative finishing.

Both methods have a right to exist, since the thermal insulation does not change critically. In both cases, the doors are insulated with your own hands, for which you will have to remove the structure from the hinges, decorate it with finishing and fix foam plastic or polystyrene foam.

First way

From the outside, the canvas is cleaned and degreased.
Apply a layer of liquid nails and tightly fasten sheets of foam or polystyrene foam.
Decor is stuffed on top, making 1 cm protrusions along the edges and arranging them in the form of rollers.

Second way

Remove from hinges and dismantle all fittings.
The sheathing is made from the inside using thin glazing beads.
Cut the foam into the required pieces.
They are inserted into the windows with force so that there are no empty gaps.
Decorated with laminate plastic panels, fabric materials etc.

As you can see, there are no difficulties in making door insulation with your own hands. Enough to have on hand necessary materials and understand exactly what to do and why.

VIDEO: How to insulate a wooden entrance door with your own hands

By covering the doors with insulation, it is possible to create a comfortable microclimate in the house, despite the cold outside its walls. Therefore, it is so important to insulate the door structure by finding out the reasons for its freezing and understanding which material is better and how to use it correctly.

Reasons for cooling the room due to the door

The fault of the front door in lowering the temperature in the house is confirmed by the formation of condensation (and a little later - white plaque) on the surface from the room side.

Condensation on an uninsulated door is formed due to the combination of cold air with warm air.

Frost on the door as a result of heat loss from the house appears for the following reasons:

loose fit of the door leaf to the frame, promoting drafts;
cracking of the door leaf due to long-term use;
poor sealing of the gap between the door frame and the opening in the wall with mounting foam;
poor-quality heat and sound insulation of the door performed by the manufacturer;
leakage of cold air through a keyhole not covered by a metal “curtain”.

Cracks in the door are one of the main causes of heat loss

To cool the room through interior door other problems are cited:

cool corridor;
different microclimates in the rooms as a result of the fact that one inhabitant of the house is cold, and the other is hot, which is why he constantly opens the window.

Materials for door insulation

To ensure that door insulation is not useless, you need to find a suitable material.

Foam rubber

The second name for foam rubber is foamed polyethylene with a foil coating. Due to its property of reflecting heat, foil on foam rubber retains up to 70% of heated air. The rest of the heat is saved by the foamed polyethylene itself.

Foil foam reflects heat, so it is actively used for insulating doors

The advantages of foam rubber include easy installation of the material - simple gluing to the surface - and an affordable price. But it has many disadvantages:

the need to hide foam rubber behind the upholstery, that is, leatherette or leather;
short service life compared to other materials;
flammability and toxicity (if ignited);
transportation is problematic, because foam rubber deteriorates when compressed.

Foam rubber is considered a good option for insulating doors, both metal and wood.

Izolon is a polyurethane derivative. The material is synthetic and is very popular because it performs its task perfectly, even if laid in a thin layer.

Even thin isolon does an excellent job of preserving heat in a room

The following advantages made isolon an attractive insulation:

excellent thermal insulation;
immunity to dampness;
protection against condensation;
the ability to perform its task without a waterproofing film;
cleanliness (from an environmental point of view);
ability to muffle noise;
compatibility with any material, including gypsum and plastic;
resistance to mechanical influences;
ensuring perfect sealing;
airiness of the material;
significant service life due to resistance to aggressive influences environment;
large selection of materials in thickness and color;
ease of installation;
long service life.

There are simply no downsides to Izolon. The material is most suitable for insulating an entrance door made of wood.

Polyurethane foam is included in the group of synthetic construction products and is often called “spray foam.” The material is applied to the surface by pouring.

Polyurethane foam is applied to the surface and turns into a solid mass

A good reputation for polyurethane foam was ensured by such characteristics as:

minimum volume and consumption of material, which is due to the creation of a thermal insulation layer in an unconventional way;
the airiness of the material, so the door does not become heavy;
excellent insulation combined with strengthening of the finished object;
good tolerance to both low and high temperatures;
close contact with the structure, which means filling even hard to reach places doors;
low flammability.

Polyurethane foam ideally seals cracks, so it is most often used to seal gaps between the door and the door frame

Negative opinions about polyurethane foam are associated with the following properties:

fear of ultraviolet rays, which can cause rapid deterioration of the material;
high risk of smoldering under high temperature.

Polyurethane foam as insulation is a real godsend for entrance doors made of any material. The pourable synthetic product seals those places that are completely inaccessible to all other heat-insulating materials.

The raw material for the production of expanded polystyrene is a finished polymer - polystyrene, foamed when exposed to high temperatures.

The advantages of polystyrene foam boards include:

ease;
good tensile and compressive strength;
Ease of use;
resistance to dampness;
low price compared to polyurethane foam.

Expanded polystyrene foam costs less than polyurethane foam

The disadvantages of polystyrene foam as insulation are:

poor noise blocking;
poor steam conductivity;
intolerance to temperatures above 80°C;
susceptibility to many solvents with organic composition;
fear of fire, although the material can go out on its own.

Experts advise using polystyrene foam to insulate steel doors.

Fillers

The category of fillers for door insulation includes silicone and mineral materials. Silicone fillers retain heat well, being resistant to negative environmental influences, but do not block noise.

Silicone filler is good as insulation, but bad as a sound insulator

Mineral fillers are famous for their functionality and harmlessness and do not show any significant disadvantages.

The mineral filler does not emit harmful substances and provides excellent protection from the cold.

Mineral wool is an insulation material made from inorganic fibers. The advantages of mineral wool are:

reliable protection from the cold;
painless contact with alkalis and acids;
the ability to allow air to pass through, which helps create a comfortable microclimate;
guaranteed blocking of extraneous sounds;
poor flammability;
durability (lasts about 50 years);
harmlessness of the material;
ability to maintain its shape.

Mineral wool does not have negative influence in good health and performs its task flawlessly for many years

When considering mineral wool with negative side indicate the following:

when wet, the material becomes almost useless;
cotton wool fibers crumble a lot, so you need to work with the material in special clothing and glasses.

Mineral wool can be used to insulate doors made exclusively from wood.

With iron door and mineral wool good contact will not work. Normal functioning this insulation will be hampered by moisture, which metal structure In winter, an excess amount is formed.

Preparing the door panel

In order for a wooden door to be ready for insulation, you need to do the following:

When preparing a metal door, the situation is somewhat different: the structure is dismantled, opened and laid horizontally, after which it is cleaned old paint, degreased with alcohol and treated with a new layer of paint and varnish material.

Before insulation, remove from the metal door top sheet to access the frame

Required Tools

When starting to insulate the door leaf, they are armed with the following tools:

electric drill with drills for metal or wood (depending on the door material);
screwdriver;
screwdriver;
hacksaw with fine teeth;
sharp scissors;
electric jigsaw;
a piece of sandpaper;
awl;
putty knife;
self-tapping screws;
construction knife;
metal ruler;
construction adhesive (water-based acrylic nails);
small nails or furniture staples;
hammer;
nails with decorative heads.

Installation of seal

Silicone or rubber compressor- the most popular materials for protection from drafts - can be installed in two ways.

The first method involves installing the seal in the groove. To do this, the material, which has a bulge with a brush on the reverse side, is compressed and pressed directly into the recess itself. At the corners of the door frame, the seal is cut only after it is installed in the groove.

The seal can be pressed into the grooves of the door structure

The second method of installing the seal assumes that the material itself is glued to the Right place. For this purpose, he is gradually released from protective film and press firmly along the perimeter of the door frame, avoiding accidental stretching of the product. The seal at the bottom is carefully cut with a knife.

Self-adhesive sealant is glued into the grooves of the door structure in the same way as tape

Door insulation technology

Actions to protect the door from the cold are determined by the material from which it is made.

Insulating a wooden door

A wooden door leaf is insulated step by step:

Strips with a width of 10 cm or more and a length equal to the height of the door structure are cut out of the sheathing material.
Pieces of material face down with small nails are attached to the edge of the canvas along its entire perimeter, taking into account that when folded inward, they will have to extend slightly beyond the door.
Rollers are made from the sheathing material, which are attached along the perimeter of the canvas
Foam rubber or cotton wool is wrapped in strips, forming rollers that will serve as an additional barrier against the cold, which always tends to enter the house through the gap between the door and the frame.
In the corners of the structure, pieces of sheathing material are carefully folded or cut, removing excess, and then joined together.
Insulation boards are laid out on the door leaf. Fastening is carried out using small nails. The fixed heat insulator is covered with sheathing material. It is attached to the wood from the top edge of the door.
The insulation is attached with nails or glue
Nails with decorative heads are inserted throughout the entire area of the structure or exclusively in its center. The decoration elements of the door leaf are arranged evenly or so as to create a certain pattern.
Using nails with decorative heads on a door covered with leatherette, you can create an interesting pattern

Video: example of insulating a wooden door

Insulation of a metal door

Metal door structure“dress” in insulation as follows:

Along the inner perimeter of the door leaf and reinforcement ribs metal product, the bars are attached to the screws - they create a frame for installing the heat insulator. The cells are made both transverse and longitudinal, since this approach to the matter will protect against subsidence of the soft insulation after several years of service.
The bars are laid in both horizontal and vertical positions
Having measured the cells, the slabs of heat-insulating material are cut into pieces of the required format with a knife. The segments are one by one equipped with liquid nails on the reverse side, placed in the cells of the frame and pressed forcefully to the surface. At the same time, make sure that when filling each section there is no free space. The detected voids are sealed with polyurethane foam. If the composition has gone beyond the frame, then after hardening it is trimmed, focusing on the thickness of the heat insulator.
Pieces of insulation are placed in sections of the frame, fixed with glue
A sheet is cut out of plywood or other cladding material, the dimensions of which repeat the parameters of the external frame of the door. In the blank decorative covering cut with a jigsaw to create a hole for a lock, handle and other elements. The sheet of plywood must be covered with a piece of leatherette, cut so that along the edges of the door it can be bent by 1 cm. The fabric is secured with staples reverse side decorative canvas. The front area of plywood covered with leatherette is decorated with decorative nails.
After decoration, a sheet of plywood is fixed on a wooden internal frame self-tapping screws with large heads. Fasteners are inserted every 30 cm around the perimeter of the door leaf, moving from bottom to top. In order to strengthen the fastening, the edges of the facing sheet are lubricated with glue.
Under the decorative panel, a sheet of plywood is attached to self-tapping screws, which levels the surface of the door
The metal door is assembled, not forgetting the lining and the handle, and placed in the door frame, placed on the hinges.

Features of external door insulation

If the insulation of the door from the inside seems insufficient, then a heat insulator is also attached to the outside of the entrance structure.

Insulation on the door from the street side will not only enhance the effect of protecting the house from heat loss through the entrance structure, but will also give the door leaf a presentable appearance.

Insulation from the outside provides the door with a chic look, and not only protects the room from the cold

To “dress” a metal door from the outside, you will need foam rubber, polyurethane foam or isolon. Both these materials and mineral wool are suitable for a wooden door. In addition to the heat insulator, you will need to find a piece of leatherette, which in terms of parameters is slightly more doors, and 4 strips of dense material to create compaction rollers around the perimeter of the entrance structure.

The operation of insulating the door from the outside is carried out in stages:

The canvas is freed from the handle and other functional elements.
Pieces of sealant wrapped in leatherette are attached to the glue along the perimeter of the door leaf.
On the surface of the door, spot-treated with glue, sheets of insulation are fixed.
The heat insulation slabs are covered with leatherette. The edges of the material are wrapped behind the canvas and glued over the rollers.
The door fittings are returned to their place.

Video: how to insulate the front door from the outside

An insulated door is a guarantee of comfort in the house. A correctly selected and installed heat insulator of the entrance structure will prevent the room from cooling due to frost outside and will protect household members from colds.