How to insulate the garage door with foam and mineral wool: useful tips. Insulation and sheathing of garage doors Do-it-yourself insulation of garage doors

“A car is not a luxury, but a means of transportation,” this catchphrase from the famous work of Ilf and Petrov has become a household word. After all, not a single day in our life is complete without a car. But in order for it to serve faithfully, it also needs to be properly looked after and protected. He needs his own home. And warm house. Let's talk about garage door insulation.

Why you need a garage

The garage is also for many motorists not just a place to store their iron horse, but also their own small service station, workshop, sometimes a cellar or warehouse.

It should be remembered that according to SNiP 21-02-99 "Parking" for long-term and proper storage of the car, the required air temperature in the garage should be at least + 5 ° C. To maintain the desired temperature in the garage, it is necessary to install a heating and ventilation system.

Choice of garage door insulation

Sectional insulated doors are ideal for installation. They will help to avoid many problems associated with the insulation of the gate. They also open up, which will help to avoid problems with opening the gate after a snowfall, do not require the radius of opening the gate and fixing the leaves after opening. After all, a gust of wind can move the sash and damage the car.

But if replacing swing gates with sectional ones is not included in your plans, then they need to be insulated. Indeed, in this case, the metal serves as an excellent conductor of cold and condensate collection.

Various thermal insulation materials can be used to insulate the gate.

stone wool - heat insulator based on basalt fiber. Nonflammable material. It has high thermal insulation properties, which minimizes the heat loss of the building. Vapor-permeable material, with the use of water repellents does not absorb moisture, is non-toxic. But when working with it, it is necessary to use personal protective equipment: gloves, a respirator, tight clothing, since cotton wool fibers have a size of several micrometers, getting on the skin cause itching and burning, and getting into Airways cause a mucosal reaction.

Foamed polyethylene , in another way, a synthetic winterizer is a common material for thermal insulation devices and as a filler for upholstered furniture. On the basis of polyethylene, foamed self-adhesive material is produced - isolon. From can also have one foil side for better thermal insulation.

Styrofoam - a type of foam. It is very popular among developers. It has excellent thermal insulation, is not hygroscopic, and supports combustion very well. By itself, it is not toxic, but when heated to 70-80 ° C, it begins to release very toxic gas- styrene. Therefore, if the doors of your garage "look" to the south, it is not recommended to use foam as a heater.

Also highly soluble in acetone and other chlorinated hydrocarbons.

polyurethane foam - sprayed lightweight and durable material. It has a very low thermal conductivity. Non-toxic, but flammable. The possibility of using this material on its own is limited. For its spraying, a special installation is required, which mixes the components of the material during spraying.

Preparing garage doors for insulation

Before starting work on the insulation of the gate, it is necessary to ensure high-quality surface preparation.

Inspect the gate for paint damage, dirt, rust and oil stains. If there are metal defects on the gate itself, they must be removed. You also need to clean the structure from dirt and rust with a brush with a metal bristle. Additionally, treat the surfaces with a rust converter, coat the metal with a primer. The measures taken will protect your gate from further corrosion, extending the lines of their service.

Check the gaps between the door frame and the opening. If there are any, provide for the possibility of installing a rubber seal. Check locking mechanisms. Adjust and, if necessary, lubricate the locks.

The insulation must be closed from mechanical damage. For fixing finishing gate, it is necessary to install an additional wooden crate on the gate.

Gate insulation with various materials

Insulation with stone wool. Most designs of swing garage doors are made from a corner with a shelf length of 50mm. This shelf size is enough to insert insulation. stone wool it is imperative to cover it with a vapor barrier film, otherwise the average daily temperature drop will lead to condensation in the insulation, and, as a result, it will get wet. From the side of the garage, mineral wool must be protected. To do this, you can use siding, OSB-plate, wooden lining.

Insulation with polyethylene foam (isolon). The use of self-adhesive material will greatly simplify the insulation of the gate. Self-adhesive material is available in thicknesses from 2mm to 10mm. Isolon can be covered on one side with aluminum foil, which will provide a thermal reflection coefficient of 97%. No additional covering of the material is required. Although the material is easily damaged.

Insulation with polyurethane foam. One of the most progressive methods of insulation, but at the same time one of the most expensive. The main feature of the insulation is its application in liquid form. After foaming, it increases in volume up to 20 times, filling all the cracks and voids, forming an ideal tightness. It has excellent sound insulation. closed cell foam ( specific gravity from 40kg/m3) acts as a vapor barrier. Good adhesion at the level of 2kg/cm2 to any materials and does not require the installation of additional fasteners.

Insulation with expanded polystyrene The most common way to insulate garage doors. The low cost of the material, its excellent thermal insulation properties contributed to its wide distribution.

The budget option is considered to be gluing sheets of expanded polystyrene to the metal plates of the gate using mounting foam. The seams between the sheets must also be sealed with foam.

Most gate frame structures used small gussets to increase rigidity. Styrofoam for these scarves must be cut to a smaller thickness. If you make a mistake when trimming, the gaps formed must be filled with foam.

When working with extruded polystyrene foam, which has increased rigidity, external finishing can be omitted. It is enough to glue the joints with aluminum self-adhesive foil.

But it is worth remembering that the use of polystyrene foam on the gate, which "look" to the south, is not desirable. When hit by direct sun rays metal heats up quickly. Expanded polystyrene already at a temperature of + 75-80 ° C begins to decompose, releasing styrene.

Additional measures to ensure the thermal insulation of the garage

Since swing gates have a very large opening area, it is necessary to reduce this area. The ideal option is to equip a small gate in the plane of the gate.

Seal all joints of the door to the frame with thresholds or rubber gaskets. Create additional air layer between the gate and the main garage room. Such a layer with a thickness of 200-400 mm can be created by hanging a dense fabric or tarpaulin curtain on the garage wall from the inside.

Everyone knows that metal garage doors in winter period frosted over and covered with a whole coat of frost. You have probably heard that you can use grease or other means to lubricate the garage door from the inside. Then supposedly there will be no frost. A much smaller number of people understand why this happens, and how it is connected with the fact that it is necessary to insulate the garage door.

Each of us studied thermal conductivity at school. If the garage is made entirely of metal, then frosting is not terrible for garage doors. The entire perimeter of the garage will freeze evenly. And in capital garages (where only the gates are metal), just the gates freeze over, because they are the most heat-conducting element.

Although the garage door is frozen, the walls will be fine. In this case, the gate in the winter period acts as a cooled coil in the moonshine still. They condense moisture from inside the room and turn it into ice.

The temperature in the garage room affects the condition of your vehicle. And first of all - on its rubber-technical elements. The higher the temperature in the room, the more convenient it will be for you to use the car inside in winter. The temperature also sets the micro-climatic conditions inside the basement (if any) under the garage. To keep the heat inside the garage, you need to insulate it very carefully. This article will discuss how to insulate.

To determine whether it is necessary to insulate the garage door with your own hands, you need to understand one important point. Even without taking into account the winter cold, the usual thermal fluctuations during daylight and warm times of the day can cause condensation to form inside the garage. Constantly high humidity has a bad effect not only on the condition of objects, but also on the car body: the metal surface can rust, the electrical wiring can rot. Fungus and mold often appear in the corners of the garage.

After the condensate freezes from excessive moisture, it will crack finishing material. But there is great news - such a seemingly serious problem can be solved. Just choose the right insulation material, and then insulate the doors and garage doors. At the end of the work will not fall below 5 ° C.

So, the insulation of the gate will solve the problem with:

• metal corrosion ( metal gate garage, metal products located in the garage itself);
• "rotting" of the car in the garage, which drives in there still "warm". And if there is a considerable amount of cold ice in a closed room, then condensation will form on every metal thing. because cars and "rot" in garages;
• frost, which appears even with a sharp drop in street temperature (not necessarily minus). It makes it impossible to open the gate.

How to insulate garage doors? Let's take a look at this.

Preparing for insulation work

There are several ways to insulate garage doors. You can initially buy and install high-quality garage doors that already have insulation material. You can also do the thermal insulation of existing gates with your own hands. The last option will cost you less. By the way, the process itself will not take much time. And for insulation, you do not need to have special skills in construction.

Before installing the insulation, measurements of the area of ​​the gate structure are made so that the total volume of the surface of the insulation can be determined. Where does garage door insulation begin? With the fact that the metal surface is cleaned of dust, dirt and other contaminants. Wash the garage doors and wipe them dry. Further, all holes and cracks are sealed with foam. When it is completely hardened, its protruding residues are removed using a knife.

How to mark up material for insulation?

The marking of the selected type of insulation is done depending on the structure and area of ​​\u200b\u200bthe design of the gate in the garage. Perfect option markings - this is when all sheets of insulation are fully used, except for the seams and joints between the plates. But how to proceed to the insulation of the garage door from the inside, so that there is no excess material left? To achieve this goal, whole sheets of insulation are immediately used. And the space that remains is sealed with pieces of foam.

When cutting the insulation, the stiffening ribs of the gate are taken into account, because it happens that the corners of the insulation material protrude strongly above the canvas. The selected insulation is cut at an angle to the desired thickness.

How is the heater attached?

As a fixing material, polyurethane adhesive foam is used. If you have never used such foam before, then working with its application will bring you delight, since installation with it is reliable, fast and easy. The main advantage of such glue is the quality of the mounting foam.

Glue-foam is applied to the insulation. After five minutes, the sheet with the material applied to it must be glued to the cleaned surface of the gate.

Experts recommend starting the installation of sheets from the bottom of the gate. The first sheet is glued without strong pressing to the surface, otherwise the foam structure may be destroyed. After the first sheet has been installed, the subsequent ones must be glued with a standard gap of about a centimeter.

Sealant or mounting foam fill the seams that appeared between the sheets of insulation. After an hour, when the glue-foam is completely dry, the joints and seams between the sheets of insulation can be sealed with foam. Excess foam can be removed with a knife. In order for the insulation of metal garage doors to have an attractive appearance, the mounted insulation is finished with clapboard.

Choice of insulation material

Before insulating garage doors, it is worthwhile to deal with the following. The process of insulation directly depends on whether you managed to choose the right insulation material. When choosing, consider its quality and properties. Among the choice of heaters (and there are many varieties), pay attention to the three most popular options:

• on mineral wool;
• polyurethane foam;
• extruded polystyrene foam (polystyrene).

Each of them has a lot of advantages, but it is impossible not to take into account the disadvantages. For example, the fire resistance of foam plastic leaves much to be desired. But at the same time it has high moisture resistance and low thermal conductivity. At mineral wool, on the contrary, a high level of fire resistance, but minimal moisture resistance.

Polyurethane foam is latest technology regarding the insulation of the garage room from the inside. Spraying is quite effective and completely fulfills the task. It differs:

1. seamless installation;
2. light weight insulation;
3. low thermal conductivity;
4. high fire resistance;
5. resistance to temperature extremes, chemical and biological aggressors;
6. durability;
7. strength;
8. the ability to use any finish for the sprayed surface.

Mineral wool is a material in the form of fibers, which is made by processing a special rock. The material has low thermal insulation, but thanks to it the room is well insulated. Cotton wool is produced in rolls and plates.

Extruded polystyrene foam is considered a more expensive finishing option. It differs from other materials in the way of installation and gluing. Installation begins with the fact that a crate is being constructed and a film is stretched, designed to protect against moisture and vapor barrier. You can see how this is done here:

Note! When insulating garage doors, you need to understand that their surface should heat up quickly, perfectly pass heat inward, and also slowly release it outward. Do not forget to measure the area you are going to insulate in advance in order to purchase the right amount of materials and other important elements (glue or fasteners).

When choosing a heater, pay attention not only to thermal conductivity, but also to the presence of thermal inertia.

Garage door insulation

Thermal insulation using any materials involves the use of a crate for the construction of the gate leaf, which will secure the insulation. The gate lining will then be attached to it. In order to make the crate, use wooden blocks with a section of 4 x 4 cm or 5 x 5 cm (depending on the design of the gate). The crate must be attached to the load-bearing frame of the door leaf: to a corner or a profile steel pipe.

To make a crate of wood, you need:

• prepare in advance required amount wooden bars. When buying, give preference to exclusively dry wood;
• treat the bars twice with an antiseptic composition (to prevent them from rotting in difficult conditions of temperature changes and high humidity);
• a bar is attached to each power element of the gate. Use a screw for this. To do this, mark the places where the holes will be, and then use the drill to make through holes. The drill diameter must match the screw. When you attach the bars, do not forget to pre-drill holes in them with a thin drill. Then the screwed screws will not split them;
• if there is an air vent on the gate, it is bypassed around the perimeter with a crate. This also applies to castles;
• if there are no steel load-bearing elements on the central part of the gate, then the bars can be attached to one another in any way: with the help of corners, at the end, and the like.

What types of garage doors can and should be insulated? About swing gates

Most garage doors have a hinged structure, which, no doubt, needs to be insulated. The basis of the gate is a frame made of shaped pipes and steel sheet, which acts as an external finish. It is known that steel has a high thermal conductivity, therefore, many people know that non-insulated gates made of this material are not an obstacle to heat leakage from the room. It is important that there is a gate in the swing gates, which significantly reduces heat loss during the frequent movement of people. Therefore, if you are still building a garage, then you should order the gate already insulated and with a gate.

Now sectional and up-and-over doors are considered very fashionable. The sections or web of this product are a sandwich of sheet steel panels on the outside and polyurethane foam on the inside. This design already has the necessary thermal insulation properties. And additional measures for warming in this case are not required. Such types of gates, if you want, can also be equipped with a gate. This is what must be done.

Handicraft up-and-over gates are also for sale. However, the insulation of garage doors of such models does not differ fundamentally from swing gates, because they are based on the same frame and steel sheet.

Roller doors are not insulated at all due to their special design. And they can not always be called garage doors, since they are much worse than all other types in terms of thermal insulation and anti-vandal characteristics.

If the garage for your car is located in a garage cooperative, then its arrangement consists in insulating the gate. As mentioned earlier, this will significantly reduce heat loss. Accordingly, this event is mandatory. The question is which material to choose. What and for what is better suited - we have already discussed.

So that the gate material does not suffer from corrosion due to the fact that condensate accumulates between the insulation layer and the metal, waterproofing of swing metal gates is carried out. Self-adhesive isolon can handle this function. It can be used as additional or basic thermal insulation. In this case, everything is decided by its thickness.

If the isolon has insufficient thickness, then polystyrene foam in sheets is glued to it. In this case, use tile adhesive or mounting foam.

Additional ways of warming

In addition to laying insulation, there are other options for insulating garage doors that reduce the release of warm air to the outside. Thanks to this action, it is really possible to create comfortable conditions in the room.

• The use of ordinary curtains, but not those used in apartments, but made of dense materials that perfectly hold back the cold and do not let it immediately into the room. They are made without unnecessary trouble: first, a steel thread or a thin rope is pulled. On it, with the help of rings well fixed to a dense material (for example, to a tarpaulin), you can attach a canvas. This method of insulation is suitable for those who often have to open the gate or, due to certain circumstances, one gate leaf always remains open.
• In the early stages of building a garage or many car owners forget to take into account the fact that less heat can escape through a small hole than when the gate is fully or partially opened. It turns out that it is better to make a small doorway at the gate. Then there is no need to plow open the entire garage in order to simply take tools such as, for example, hammers for driving nails. Therefore, when ordering a gate, ask to make separate doors for you in them.
• The joints between the wall and the gate are also, as you already know, subject to additional insulation. You can also put sills for less waste of heat, which will leave through the cracks. To ensure the function of insulation, use vinyl material with appropriate dimensions and thickness. Vinyl tape is attached along the edges of the joints where there are gaps. To attach the tape, use nails or mounting glue. This is an additional barrier to heat loss.

Why is garage door insulation important?

First of all, the insulation of the garage door is taking care of your “iron horse”. If you manage to create really good conditions for your car, then it will serve you for a long time and regularly. After all, it turns out that cars can also “catch a cold” and “sick” in an overly damp or cold room. And, like every patient, such a car needs special “treatment”, which, believe me, will cost you a lot. Money. For this reason, as they say, prevention is always cheaper than cure.

In addition, many people use the garage not only as a parking lot, but also as a warehouse for old things or even a man's personal space. Often, it is in the garage that a small workshop is organized, in which sets of various tools are stored that are useful in the process of creating various things or carrying out repair “work”.

Note

Also from the garage you can make a rest room for spending leisure time with friends. Therefore, carefully consider the insulation of this kind of room. Make sure your garage feels "warm" in the winter and cool in the summer. To do this, "should" try to create comfortable conditions for being inside the garage.

Reading time ≈ 8 minutes

The garage is an excellent option to protect the car from precipitation, but it will not save you from sub-zero temperatures without proper thermal insulation. Since the bulk of the heat leaves through the garage doors, on how and with what to insulate them from the inside with your own hands, as well as on the methods step by step options and photo examples, let's dwell on the details.

Why insulate garage doors?

Some motorists believe that if the vehicle is under a roof and protected from precipitation, then creating any other conditions for storing the car is simply inappropriate. However, when insulating garage doors, the following goals are pursued:

• gates are the part that is directly related to external environment. As a rule, the material of their manufacture is metal. Through him in winter time heat goes outside, and in summer it penetrates inside;
• often garages are used as workshops. The same car repairs are carried out inside this room, and in the cold it is not very comfortable to do this;
• thermal insulation of the gate allows you to smooth out temperature fluctuations, which eliminates the formation of condensate, both on the internal elements of the garage and on the car. If the garage is properly insulated, then the car is less exposed to the harmful effects of corrosion.

However, this does not mean that the garage should be as warm as in the living room. For example, if the garage is heated, then when a vehicle enters from the street, it will instantly fog up, the humidity will increase, as a result of which the car will be in a warm-humid fog all night. Such conditions will negatively affect the condition of the body elements.

Which gates need insulation

Most often, garage doors are made in the form of a hinged structure that needs to be insulated. A corner is used as a gate frame or profile pipes to which a sheet of metal is attached. Since steel is a very good conductor of heat, the lack of insulation does not prevent it from leaking out of the garage. Sometimes swing gates are equipped with a gate, which significantly reduces heat loss if the garage is often opened and closed.

Today, the most common door designs are up-and-over and sectional. The canvas is made of a sheet of metal on the outside and foamed polyurethane on the inside. Such a design already from the factory is endowed with the necessary thermal insulation and is able to effectively retain heat.

Sometimes up-and-over gates are made independently. This design, like the swing, does not have any insulation, since the material is bare metal. If the garage is equipped with roller doors, then their design simply will not allow for insulation.

The choice of insulation

Today there is a fairly wide selection of heat insulators. Each of them has both advantages and disadvantages, based on which you can choose the most optimal option.

Mineral wool

The material has been popular for decades. Happens different types, of which basalt wool is considered the best. She is not only good insulation, but also perfectly protects from noise. Mineral wool is produced in the form of rolls and mats.

Since mineral wool should not come into contact with moisture, many are of the opinion that it is not suitable for insulating garage doors.

Styrofoam

One of the most common heaters. It is cheap and long-term operation, is not affected by insects and fungi, and is easily cut. The light weight of the sheets allows you to mount it yourself.

However, it is worth considering that the foam requires protection from direct sunlight and mice, and the garage must be equipped with ventilation so that there is no accumulation of condensate. Penoplex has properties similar to polystyrene, but its cost is much higher.

glass wool

It is cheap to insulate a garage with glass wool, which is the only positive quality this material. Otherwise, you need to work with it very carefully and be sure to use protective equipment. Otherwise, problems with the skin and organs of vision are possible. Glass wool also requires good protection against moisture, because when wet, its thermal insulation properties are lost.

polyurethane foam

The insulation is resistant to external influences. The material expands after application and fills all the gaps well, has good adhesion to the metal. Thus, do not be afraid that condensation will accumulate under it.

Also, polyurethane foam refers to non-combustible insulation. However, its application requires special equipment, which indicates the need to contact specialists.

How to insulate garage doors step by step

The procedure for insulating the garage door from the inside with your own hands consists of several stages. Let us dwell on each of them in detail, as well as on proven methods of thermal insulation.

Preparatory work

Having chosen the material, prepare the surface of the gate from the inside. To do this, they carry out an inspection and, if corrosion is detected, they get rid of it with a special metal brush to the grinder, after which they treat the metal with a primer and paint. Then all the cracks are sealed with mounting foam. Thus, it will be possible to avoid cold bridges.

When the surface dries, they are treated for the purpose of waterproofing, for which they are suitable:

• bituminous mastic;
• vapor barrier;
• isolon 2 mm thick.

When using extruded polystyrene foam, waterproofing can be omitted.

Manufacturing of crates

In order for the thermal insulation to be securely held on the gate, as well as for attaching the finish, you will need to mount wooden frame from bars with a section of 40 * 40 mm, which are fixed along the inner perimeter of the gate. Wooden elements for the crate must be well dried and pre-treated with an antiseptic.

The crate is mounted as follows:

Thermal insulation with foam

Considering how and with what to insulate the garage door from the inside with your own hands, as well as methods and options for step-by-step actions with photo examples, you should first deal with foam insulation:

You can learn more about the thermal insulation of the gate with foam plastic from the video.

Thermal insulation with mineral wool

Mineral wool, although susceptible to moisture absorption, is still used to insulate garage doors. Preparatory work similar to those described above.

When mounting the frame, the cells should be made 5-10 mm smaller than the dimensions of the material so that the plates can be laid tightly.

Mineral wool is placed between the elements of the crate and fixed on the sides with fasteners. A plastic film is attached on top of the insulation. At the end of the procedure, the cladding is mounted.

Motorists traditionally spend a lot of time in the garage, caring for their "iron horses". However, in winter it is extremely uncomfortable to do the usual work, and sooner or later the owners face the question of warming. This measure allows you to solve the problem radically, since heat escapes very quickly through the door leaf (and usually steel sheets). Garage insulation not only creates comfortable conditions for its owner, but also allows:

• start the car faster in severe frosts;
• extend the life of rubber parts;
• prevent the appearance of condensate in the internal cavities of the machine;
• create the desired temperature regime in a vegetable store, which are often combined with garages.

The possibility of insulating garage doors depends on their design.

Which gates can be insulated

Most gates have hinged leaves, which are steel sheets welded to metal frame. Insulation of such gates is mandatory, since they practically do not retain heat. It's easy to make it simple design hinged gate allows you to use materials of any thickness.

Overhead and sectional garage doors are very popular these days. As a rule, they are factory-made. The door leaf or individual sections are sandwich panels. From the outside they are covered with sheet steel, and from the inside they are already insulated with foamed polyurethane and do not need special measures for additional insulation. lifting gate, made by hand, insulate in the same way as swing ones. The thickness of the insulation for them should not go beyond the dimensions of the frame. The same rule applies to rollbacks.

Roller shutters are not subject to insulation, as their design is designed for a certain thickness.

When choosing a material for insulation, it is necessary to take into account its weight. The weighting of the leaves can lead to the fact that the mechanism by which the gate moves begins to work worse over time and gradually fails.

The most popular insulation materials

A good insulation should have low thermal conductivity, then a sufficiently thin layer can significantly reduce heat loss. The following materials are most often used to insulate garage doors:

All foams have qualities that are indispensable for the insulation of garage doors - low thermal conductivity and hygroscopicity, fire safety, chemical inertness.

How to insulate garage doors

Before starting work on insulation, it is necessary to check the operability of the ventilation in the garage. In the process, do not block the ventilation holes with insulation. Normal operation of ventilation contributes to a decrease in humidity and the timely removal of gasoline vapors and exhaust gases.

We will analyze in detail how to insulate garage doors on their most common design - swing.

Surface preparation

Take a close look inner surface door leaf. Large areas affected by corrosion are cleaned with an iron bristle brush. If rust has covered most of the steel sheet, it is more convenient and faster to work with a drill or grinder with a special round nozzle.

After thorough cleaning of rust and degreasing, an anti-corrosion primer is applied.

Fabrication and installation of the crate

As a crate, wooden blocks or an aluminum profile are used. Fasten the crate to the gate frame. The material for the crate is cut to size. Wooden bars are impregnated with a double action composition - from fire and decay. The elements of the batten are attached to the frame of the sashes with screws of suitable length. All accessories for door leaf- locks, ventilation holes, trimmed with a crate around the perimeter.

Waterproofing and laying insulation

Before you insulate the gate in the garage, you need to observe some of the subtleties of handling this material. Of all its varieties, it is better to stop at basalt wool from a well-known manufacturer. Before laying cotton wool, you should take care of waterproofing so that the material does not absorb moisture. Good results are obtained by coating the inside of the gate with bitumen-polymer mastic or finishing with self-adhesive material such as Izolon.

After all the metal parts of the gate are covered with waterproofing, the insulation is cut into pieces of such a size that it exceeds the distance between the bars of the crate by several centimeters. This is done so that cracks do not appear, since mineral wool caking over time.

It is most convenient to cut the insulation like this: lay out a sheet of fiberboard on the floor, roll mineral wool over it, measure it and force it with a sharp clerical knife.

A vapor barrier film is stretched over the mineral wool and attached to the bars with a construction stapler. After the vapor barrier, the already insulated swing gates are ready for final finishing. The cladding is made of plastic or wooden clapboard, corrugated board, OSB sheets. fastened facing material to the bars with screws with a press washer.

Laying insulation around the perimeter of the gate

Gate leaves very rarely adjoin closely to each other. Usually a gap is formed between them, allowing the gate to be freely closed. To prevent heat leakage through these slots, various seals are used. As a rule, they are a self-adhesive strip with a rubber or foam rubber seal. This seal is not suitable for insulating the lower part of the gate. For these purposes, there are special brush strips. They are attached to the bottom of the gate with self-tapping screws.

After all the cracks are closed, the insulation of the garage door can be considered complete.

Self-insulation of garage doors - video

A garage for a car owner is not only a place to store a car, but also a workshop, a place to store tools, a pantry for summer cottages. In the article, we will explain what material is best for thermal insulation, and we will tell you how to insulate garage doors.

Why insulate garage doors?

Having installed the gate, car owners eventually understand that in order to maintain a comfortable temperature in the autumn-winter period, they need to be insulated. In addition, the car itself and material assets will retain their presentation and working condition longer if the temperature does not fall below 12 °, and the humidity does not exceed 70%. In such a room it is quite possible to arrange a workshop for year-round use, and country supplies will not freeze.

Temperature fluctuations in the garage lead to condensation, which adversely affects the anti-corrosion properties of the car

Door insulation will solve many problems and increase the life of the car.

What types of garage doors need to be insulated

According to the material of manufacture, the gate can be completely metal or wooden with iron sheathing. According to the method of opening the canvas in garages, they install Various types gate:

• Swing double doors with or without a gate;
• Sliding, single-floor or double-floor;
• Sectional, lifting and turning;
• Roller blinds.

You can insulate on your own all types of gates except roller shutters. When insulating sectional doors, difficulties can also arise, since the automation is designed for the weight of the leaf without insulation. Difficulties will not arise when insulating the gate with manual opening, hinged or sliding.

The lifting mechanism may not withstand the heavy weight of the heat-insulating material, therefore sectional doors are not designed for insulation

Choosing the right insulation

For the insulation of the gate, an effective heat-insulating material with a low weight is suitable. Of the heat insulators offered by the construction market, slabs made of mineral wool (stone, basalt), foamed or extruded polystyrene foam and polyurethane foam have the best performance. Thermal conductivity coefficient of heaters at high humidity (conditions B), W/(m °C):

• Polyurethane foam - 0.04;
• Foamed polystyrene, graphite-containing or extruded - 0.031;
• Mineral wool basalt 0.044.

The volumetric weight of these materials ranges from 25 to 40 kg/m3, and 50 mm of any of them is enough to bring the door leaf in line with the current standards for heat transfer resistance of external enclosing structures. These thermal insulation materials are durable, environmentally friendly, and do not harm nature and human health upon contact.

Polyurethane foam (PPU) is produced in the form of plates or a two-component composition for spraying, extruded polystyrene foam - board material different thickness, basalt fiber insulation is produced in the form of rigid and semi-rigid slabs, as well as soft mats.

Polyurethane foam is a honeycomb-type artificial filling that is tested and safe, which confirms its widespread use in everyday life.

For work, it is preferable to choose soft basalt mats, since the height of the structure is small, the insulation is not loaded and rigidity is not needed, and the mass of mats is less than that of the plates.

How to insulate garage doors from the inside

Do-it-yourself insulation of the gate from the inside requires preliminary preparation: after choosing the insulation material, it is necessary to prepare the surface, and only then proceed to work.

Surface preparation

Work is easier to carry out when the door leaves are in the supine position. Cloths of old gates require cleaning from rust, priming and protection from further corrosion. For cleaning, you can use one of 3 methods:

• Chemical - we treat the surface with a rust converter;
• Mechanical - using a special nozzle on a drill or manually, with a brush with metal bristles;
• Painting - paints, for example "Hammerite", which are at the same time rust converters, a primer and a paint composition.

A grinder with a polymer-abrasive brush is an ideal choice for cleaning a metal surface.

If you have chosen mechanical or chemical method, then after processing and cleaning the rust, the surface is dedusted, degreased, primed, then painted with a composition for metal. Primer and paint based on alkyd, acrylic or pentaphthalic resins must be designed for operation in conditions of high humidity and a wide range of temperatures.

Creation of a crate

The crate is needed to give the structure rigidity and fix the insulating material. The crate is performed depending on the size and design of the gate, it can be made of wooden beam section 50x50 mm or from a metal corner 50x5 mm.

A wooden bar is attached along the perimeter to the frame of the door leaf, along the perimeter of the gate, bolt and lock, then horizontally, in increments of 600 minus 5 mm. The location of the elements of the crate is marked on the canvases with a marker, it is desirable to use the bars in one piece, without joining.

The crate helps to fix the insulation, and the front layer of the cladding will also be held on it.

Lathing for slab heat insulator or mats should be carried out in a horizontal direction to prevent possible slipping of the insulation from its own weight. Wooden bars before installation of the crate are treated with an antiseptic to prevent decay, damage by insects and fungal diseases.

It is important! For antiseptic treatment of timber, choose a composition with a validity period of 10-25 years, so that after a couple of seasons you do not have to do the work again.

In the case of sprayed insulation, the direction of the frame does not play a role, but the surface of the gate should be treated with an adhesive primer to improve the adhesion of PPU to the metal sheet. Wooden crate the canvas is attached to the frame with galvanized self-tapping screws for 1/2 of the thickness of the timber in increments of not more than 25 cm, metal - with bolts or welding.

Foam insulation

Work algorithm:

1. Expanded polystyrene plates are cut to the desired size.
2. For better adhesion to metal, the smooth surface of the plate is pricked with a spiked roller.
3. Adhesive composition ( polyurethane foam, glue-foam) is applied along the perimeter of the plate, retreating from the edge of 1.5-2 cm, and in the center with 1-2 marks.
4. The slab is pressed against the metal and fixed with a load, leveling the level of the crate with a rail-rule.

The main rule for using polystyrene foam is that the fewer joints, the better.

The adhesive should not get on the end of the heat insulator in order to avoid the appearance of cold bridges. The gaps between the plates are filled with scraps of polystyrene foam.

The use of mineral wool

Operating procedure:

1. Soft mineral wool mats are cut to the size of the crate cells plus 5 mm for spreading.
2. Mats are coated with adhesive around the perimeter and in the center in 1-2 places.
3. The mat is placed in place and pressed to fix it.
4. The slots are filled with scraps of material on the mounting foam.

Since the water absorption of mineral wool is greater than that of expanded polystyrene and polyurethane foam, a vapor barrier film (not household polyethylene!) Is fixed on the surface of the mats with a stapler to prevent absorption of water vapor by the material.

Mineral wool is a gyroscopic material, therefore, before laying insulation, it is necessary to take care of waterproofing

Use of polyurethane foam

When using slab polyurethane foam, the insulation process is similar to thermal insulation with foam. If you decide to spray foam, you will need professional equipment that you can rent or invite a team of professionals. It will cost more, but guarantee quality result.
Polyurethane foam insulation is suitable for sectional doors, as the material itself has a low volumetric weight.

It is important! When spraying, it is necessary to use a protective suit, goggles, a respirator, work in the air or in a room with good ventilation.

Performance of work: spraying is carried out in layers, monitoring the thickness of the material so that it matches the thickness of the crate. After the foam has hardened, the excess foam is cut off.

Before covering the gate with polyurethane foam, it is necessary to close the openings and parts of the gate into which foam is not desirable.

Finish lining

Finishing will not only make the garage space more attractive, habitable, but it will also protect the polyurethane foam and polystyrene foam from the damaging effects of sunlight.

The interior of the gate can be made from a variety of materials:

• Moisture resistant plywood - a classic finish with excellent performance;
• OSV board - oriented strand board quality material for external and internal facing;
• Lining wooden;
• Lining plastic;
• Sheet plastic is opaque.

To prevent the appearance of cold bridges with a metal crate, it is advisable to glue the frame shelves and corners with foil tape before fixing the finish.

Materials are cut to size. To fasten the plastic lining - siding, a connecting U-shaped profile is mounted around the perimeter of the canvases. The cladding is attached to the crate with self-tapping screws in special grooves; when fastening, the self-tapping screws are not screwed up to the stop, leaving a gap of 1.5 mm for thermal expansion. Siding orientation can be either horizontal or vertical.

Plywood, OSV boards, lining after installation must be primed with an antiseptic and painted with a composition for wood materials for outdoor use, paying special attention to protecting the ends, since rotting and fungal infection begin from them.

General view of the insulated gate after facing with moisture-resistant plywood

For finishing sectional doors, you can use foil insulation made of foamed polyethylene foam, fixing it with a similar adhesive tape, or sheet plastic, which is attached to the insulation with a stapler.

The advantage of artificial materials for sheathing is their resistance to decay, durability and ease of maintenance, the disadvantage is the release of harmful substances during combustion.

Mounting seals

Particular attention should be paid to sealing the porches, since heat loss through cracks is up to 30% of all heat loss. The seal can be single-circuit, when the seal is attached along the contour of the opening, double-circuit, with the fastening of profiles to the opening and the door leaf.

Rubber seal due to the elongated tail is perfectly attached to the gap

The sealing of the porches is carried out with special seals:

• Rubber have different forms(flat, round, tubular), the choice depends on the size of the slots;
• Silicone is most often produced in the form of a tape: they are soft and elastic, designed to fill small gaps;
• The brushes are equipped with piles of different heights, impregnated protective composition, have a service life of at least 8 years;
• Polyurethane foam - take the form of a gap, resistant to temperature changes, but afraid of light.

The sealant is fixed on three sides of the opening with self-tapping screws or glue, on the gate leaves in the center and on the bottom leaves. In the lower part of the canvases with a large gap, it is better to use brush seals, along the perimeter of the opening - tubular, at the junction of the wings - silicone. If the gate has a wicket door, then the sealing profiles should be fixed along the perimeter of the opening in the door leaf.

Video: do-it-yourself garage door insulation

Performing insulation will not be difficult for a person who owns tools. It takes only a small financial investment and time to implement the plan. Carrying out work in accordance with the technology will help create comfortable conditions in your garage even during winter frosts.