Insulating the roof of a metal garage from the inside. Self-insulation of metal garages

How to insulate an iron garage from the inside - this question worries owners of homemade products and models industrial production. The structures are more cost-effective than permanent boxes, but every winter the shells need to be constantly heated. Otherwise, starting the car will be problematic. A simple task will help correct the situation - applying a layer of thermal insulation to all steel surfaces.

Let's look at the main options for self-insulating a steel box.

Materials and methods for insulating a garage

How to insulate a metal garage with your own hands and what materials are best to use - here are several ways to solve the problem:

If the space between the boxes and the means allows, the best option- this is insulation with outside with wall lining with foam concrete blocks or simple brick. This is a more expensive option; you will have to purchase expensive blocks, pour an additional foundation, spend time on masonry and make a new roof structure. But the advantages of such a solution completely cover the costs, if, of course, boxing is legal. The room will be comfortable in summer and winter, especially if you add a layer of thermal insulation between the walls. It turns out to be a thermos effect. This will no longer be a shabby metal garage, but a permanent building.
It is recommended to insulate a metal garage from the inside using inexpensive mineral wool slabs. Basalt fiber does not burn and has high levels of thermal insulation. But you will need to make a fine lattice of wooden blocks on all parts of the room to fix the slabs between it, then you will have to spend money on purchasing chipboard slabs or other durable material for covering the surfaces. In terms of heat savings, this material is inferior to analogues. The main disadvantage of min. cotton wool - flowability of the material and adverse effects on humans. Therefore, if you plan to use the box for work, the use of this insulation is strictly prohibited.
Modern polystyrene foam material will allow you to quickly and easily create a layer of quickly hardening foam on the walls and ceiling, which is not inferior in terms of thermal insulation to any material. There is no need to use cladding, the foam hardens, and an even layer is easy to paint. But for work you will need to purchase or rent expensive tools and equipment. The price of the foam will also require certain costs. Therefore, using such material in a garage is not cost-effective. Expanded polystyrene is used mainly for insulating private households or garden houses. In these places, a layer of foam is applied from the outside and then covered finishing slabs or materials.
Probably the most democratic and popular method of covering walls and ceilings using foam sheets. For fastening, it is not necessary to create rows of sheathing; the insulation is easily glued to the metal using simple polyurethane foam or construction adhesive. In terms of characteristics, the material is preferable to mineral wool, and in terms of price it is preferable to all other finishing options.

Let's look in detail at how to insulate a metal garage from the inside with your own hands using a democratic option.

Step-by-step instructions for thermal insulation of a steel garage with foam plastic

The process is divided into several stages.

Preparing for work

Before starting the main work, several preparatory operations are performed:

clean all surfaces wire brush or a wire disk mounted on an angle grinder or in a drill chuck. In any case, we recommend that you remove the machine from the box, take it out or cover the racks or shelves with thick material, and use personal protective equipment. Be sure to wear safety glasses and a respirator, and clothes must be buttoned up;
We cover the rotten metal with patches and scald it. If this is not possible, you can apply bandages made of several layers of fabric and sealant to these places;
To ensure that the walls of the insulated box are not exposed to corrosion, we degrease the treated walls, ceiling, gate leaves with a solvent and paint the outer and inner surfaces with a primer;
We prepare the foam sheets for work. If the walls and roof are made with “cards” (separate parts with edges curved inwards), the edges of the sheet will need to be made oval at the junction with the edge of the “card”. The thickness of the slabs is at least 40-50 mm, 25 mm sheets can be installed, but the level of heat loss increases significantly.

Important! Before you insulate your metal garage, think about ways to save money. Will help you save a lot on your purchase Supplies purchasing them in a large construction hypermarket or on special offer. Such a purchase will save up to 25% of funds.

Let's move on to the main stage of work and answer the main question of the article - how to insulate a metal garage with your own hands?

Insulation of surfaces with polystyrene foam boards

We insulate an iron garage according to the following scheme:

We figured out how to insulate, we begin to sheathe the walls with sheets of material. Construction adhesives of different names will successfully glue and secure the panels, we do not recommend buying expensive compounds, advertising does not always allow you to choose a reliable composition, and paying for a brand does not make sense.
If you plan to sheathe foam plastic slabs with finishing materials, to secure them we make a sheathing of wooden slats, the size of which depends on the thickness of the insulation. We fix the bars either into card shelves or with self-tapping screws through the walls of the box. Often there is no point in attaching them; foam plastic is a fairly dense material. We install the sheathing along the edges of the finishing sheets and 1.2 lintels in the middle - this will be inexpensive and practical.
We cover the metal surface with a layer of waterproofing; you can use a simple plastic film, it will protect the foam layer from condensation.
Turning the sheet over inside Apply a layer up and along the edges liquid nails or polyurethane foam. We start gluing the panels from the bottom. We glue the plate, depending on the composition, you may have to hold the sheet a little so that the foam fixes it.
In a similar way we secure the entire bottom row and move on to the 2nd row. We bring the panels to the roof.
Gluing foam plastic to the roof surface is a little difficult, but the foam will quickly fix it, although you will have to spend a little time atlas.
Foam sheets are trimmed with a simple knife or a metal file, they need to be adjusted tightly to each other so that there are no large gaps left;
Having finished with the roof, we insulate the gate leaves and wicket in a similar way.
We fill all the seams polyurethane foam so as to exclude the occurrence of “cold bridges” and the formation of a layer of condensation. You can use various construction sealants - the main thing is to completely fill the cracks and seams. If the foam protrudes beyond the thermal insulation layer, after hardening it can be easily cut off with a knife.
Fiberboard, MDF, and plywood sheets are used as decorative finishing, but these materials must be treated with a special impregnation before installation. If you plan to install shelving or wall shelves, their fastening is taken care of in advance. At the installation sites, we install and weld steel plates or a corner flush with a wooden block.

Insulation metal garage from the inside with your own hands finished. Long execution time full cycle no work required, thanks large size slabs and ease of fastening to the wall. More time will be needed for the preparatory stage. Not only the durability of the thermal insulation layer, but the entire structure as a whole depends on the quality and reliability of the preparation of metal surfaces, painting, and fastening of the sheathing.

If you plan to use mineral wool rolls as insulation, prepare a large number of bars. The sheathing is installed at a frequency depending on the width of the insulation boards. Other preparatory work performed according to a similar scheme. We do not recommend using fiberboard sheets for cladding. As a last resort, you can install MDF panels, but it is better to use CBPB slabs, chipboard or thick plywood.

In conclusion, we note.

Any man can insulate a metal garage. The job does not require experience in complex welding or construction work. The main thing is to have knowledge of step-by-step instructions for carrying out preparatory and basic work, and to be responsible for your work and your health. In this case, when minimum costs your steel box will always have a comfortable temperature in both winter and summer.

Garage walls, as a rule, have a small thickness, so they cannot perform protective functions at low temperatures and cold winds.
In addition, it makes no sense to heat a metal garage, because no matter how much you heat it, the room will still not warm up, but there is a possibility of condensation.

Therefore, insulating a garage is a non-negotiable issue.

When insulating a metal garage, the main thing is not to overdo it. After all, what is comfortable for a person is not always suitable for a vehicle. Therefore, the garage should not be too hot.

The car, after entering a warm room from the cold, is instantly covered with condensation, which has a destructive effect on the body. So thoughtless heating of the garage will not bring any benefit - it will only do harm.

The insulation of the room should be carried out in such a way that vehicle was in the room at a positive temperature, and the temperature in the room should not have much difference with the temperature outside.

The ideal temperature for storing a car in a garage is 5˚C. At the same time, if the car owner is cold, you can use a heating device.

How to properly finish an iron room?

When planning to insulate a garage, you first need to decide on the type of insulation. Today, two methods of insulation are popular:

internal;
external

When insulating internally, not only the walls must be insulated, but also the floor, roof, and gates. There are several varieties for this thermal insulation materials. The choice of material directly depends on the method of fastening.

Most often, the following are used for internal insulation of a garage:

mineral wool;
Styrofoam;
liquid insulation.

Monavata has a high level of thermal insulation, but it has one serious drawback - vapor permeability, which can disrupt the structure of the insulation and nullify all efforts.

If it has been decided to insulate the garage using mineral wool, then it is necessary to perform certain operations to install vapor and waterproofing equipment.

Insulation with mineral wool is carried out in the following sequence:

IMPORTANT! If the plans include roof insulation, then it is recommended to leave the finishing until the completion of the insulation equipment work.

Foam plastic is in no way inferior to mineral wool in terms of characteristics. But it is not recommended to use it in rooms where work with flammable materials and flammable equipment is planned, because when the foam ignites, caustic smoke is released.

For those who do not experience financial difficulties, it is recommended to use liquid materials such as penoizol and polyurethane foam to insulate the room, which fill the space between the sheathing posts.

DIY floor

When choosing a material for floor insulation, it is recommended to proceed from the type of material. Usually, In garages, floors are made of metal or cement screed. Consequently, insulation must be selected taking into account the properties of these particular materials.

The floor is the main fire hazard in the garage, so it is strictly forbidden to use materials with a low fire safety rating. Of the materials offered on the construction market, it is recommended to give preference to foam plastic. And done correctly finishing will allow you to hide the insulation from fire.

Floor insulation begins with cleaning and leveling the base surface. If there are cracks on the floor and chips need to be repaired with mortar, the bulges are cut off and cleaned with construction mesh.
The concrete screed must be treated twice with a deep penetration primer.
At the next stage, a layer of floor waterproofing is created, especially if the garage is equipped with a cellar or inspection pit.
Then an adhesive composition is applied to the surface of the screed using a notched trowel, foam boards are laid on it and tightly adhered to the base.
REFERENCE! In some cases, foam plastic can be fixed with dowels, but for this you need to prepare the holes in advance.
On final stage a new screed is poured into which special granules are added to ensure the strength of the surface.

Gates

Garage doors typically take up one third of the garage's perimeter. That is why, without their high-quality insulation, the thermal insulation of the entire room will be minimal, therefore, when installing thermal insulation for the gates, it is necessary to hide all the cracks and prevent severe freezing.

Taking into account the fact that the gate has a wicket, its insulation must be carried out separately.

Walls from the inside

The walls of an ordinary metal “box” should be insulated from the inside. Foam plastic is most often used in sheets or rolls. This material has an increased level of thermal insulation. It is attached to the walls using special glue.

Insulation using polystyrene foam is an effective, yet fairly cheap method. Installation of polystyrene foam is carried out using the same technology as floor insulation: first, lathing is made, then thermal insulation is laid and covered with cladding.

Roof

The roof, like the walls, is most often insulated using polystyrene foam. If you use mineral wool as thermal insulation, it is fastened with a stapler and hidden under a “false ceiling”.

ATTENTION! The foam is fixed with glue. This is explained by the fact that with another installation method it will be necessary to make several holes in the roof, and this is unacceptable.

Video on the topic

Watch a video on how to insulate a metal garage from the inside:

Conclusion

Properly equipped garage insulation will make it possible not only to protect the vehicle from rust and premature failure of its systems, but also to independently implement technical inspection And minor repairs even in the cold season.

A metal garage is one of the simplest and inexpensive options arranging a “home” for the car. Provided that it is built according to all necessary requirements, one of which is garage insulation. Today, metal garages are insulated mainly with familiar, classic heat insulators. However, modern market can offer a lot of building materials the latest materials with excellent performance and thermal insulation characteristics. Insulating a metal garage with your own hands is not so difficult task. How to do this and what materials to use for insulation - read below.

Materials for thermal insulation of a metal garage

Most often, the following heat insulators are used to insulate metal structures, including garages:

Polyurethane foam.

To apply polyurethane foam it is necessary to use special equipment. Using this heat insulator, you can truly insulate your garage with high quality, and the service life of polyurethane foam is tens of years. We can confidently say that for at least 70 years, polyurethane foam coating will perform its functions. This is one of the best materials for insulation of metal structures at the moment.

Penoizol.

To put it simply, penoizol is foam plastic in liquid form. The material is quite durable and can retain heat for about 40 years. Penoizol is not afraid of moisture and is resistant to high temperatures, which is very important for a garage.

Astratek.

A liquid heat insulator that is applied to metal surfaces in the same way as regular paint - with a brush or roller. The one-millimeter thick layer of astratek has the same thermal insulation characteristics, as well as 500 m of mineral wool. If you plan to use this material, you must remember that its consumption is quite large and is approximately 0.5 liters per square meter surfaces. All of the above modern thermal insulation materials are undoubtedly very effective and durable, but in most cases the car owner will have to abandon their use, since it is unreasonably expensive. It’s great when garage insulation can last 50 years or more, but what garage owner will look ahead for such a long period of time when they need to pay a tidy sum for insulation right now?

Therefore, metal garages are most often insulated with the most accessible and cheapest material - polystyrene foam. At the same time, it is spent many times less money than on the purchase and application of ultra-modern thermal insulation materials. For example, to insulate one square meter of a metal surface with polystyrene foam you need to spend less than 800 rubles. Important advantage metal garages - no need for a strong foundation. In most cases, it is enough to fill the area of the required size with concrete. To do this, I remove a layer of soil to a depth of about 30 cm, clean the bottom, sprinkle it with sand and compact it. Next, a grid of reinforcement and formwork are installed around the perimeter of the pit.

The foundation for a metal garage must be at least 15 cm above ground level to prevent water from entering the room. Insulation of the foundation in this case is not necessary.

How to insulate a garage from the inside

If we talk about insulating the walls of a metal garage from the inside, then the work must be carried out in a certain sequence. First of all, they make a frame for the insulation boards. The whole process in this case can be divided into several stages.

Before you begin, you need to purchase construction tools. Purchasing a tool is currently not a problem. Even if the construction site is located far from civilization, the tool can be purchased through online stores like http://technoportal.ru/. And you definitely need to buy a screwdriver, drill, grinder, etc. After purchase the necessary tool let's get to work:

Preparing the insulated metal surface, cleaning the walls. Installation of a false partition made of plasterboard, the frame of which will be used for laying thermal insulation material. To create the frame you will need guides (UD) and a wall profile (CD). Installation of UD racks (0.25-0.30 m) to the ceiling or floor is done using dowels. The CD profile is mounted using special hangers, observing a step of 0.6 m. Mounting hangers are attached to the wall approximately every 30 centimeters. Subsequently, a plasterboard covering is installed on these hangers.

In the process of insulating a metal garage, not only plasterboard can be used as the lining of the thermal insulation layer. Quite often, insulated walls are sheathed with asbestos fiber.

This material has good fire resistance, but at the same time it is quite fragile, therefore, when installing the frame, the step between the racks needs to be smaller.

After the frame is ready, they begin laying the insulation. To insulate a metal garage, it is recommended to use mineral wool or glass wool slabs as a classic heat insulator - they retain heat well and do not burn, while polystyrene foam, although cheaper, is a flammable material and releases toxic substances when ignited. Mineral wool slabs are laid in the frame (it is advisable to make the distance between the racks according to the size of the insulation slabs, so that the slabs do not have to be cut to size).

After this, a layer is attached to the frame vapor barrier material. The joints of the vapor barrier sheets must be taped.

It is much easier and faster to insulate a metal garage using liquid thermal insulation, using, for example, heat-insulating paint or polyurethane foam - the most affordable and popular liquid insulation.

In specialized stores you can find a fairly large assortment of liquid heat-insulating paints: thermos, isolat, etc.

To insulate a metal garage using liquid foam, a so-called foam generator is used. This device foams a heat insulator, which is applied in a liquid state to the surface to be insulated. Liquid foam dries quickly, forming a hard crust that firmly adheres to the metal surface.

As mentioned above, the cheapest and simple material Polystyrene foam is used to insulate a metal garage. If glue is used to attach foam boards, then you need to carefully prepare the metal surface - thoroughly clean it of dust, dirt, rust and be sure to degrease it. This is the only way to ensure durable and high-quality fastening of the insulation. The easiest way to fill the gaps between the plates is with regular foam. After this, the foam layer is covered with any available finishing material.

Insulation of metal garage doors

When insulating a metal garage, do not forget to take care of the gates, since a large amount of heat escapes from the room through them. Experienced builders advise making a door in one of the leaves so that each time you enter or leave the room, you do not have to open the gate completely.

In addition, a special curtain can be installed on the inside of the garage door, which will prevent heat leakage.

An excellent material for a curtain is transparent plastic; it allows you to see the space in front of the garage when leaving. You can use thick plastic film. The material for the curtain is cut into wide strips, about 30 cm. The strips should not reach the garage floor by about 1 cm. This is necessary so as not to tear them away from the fastening when the car is moving.

The strips are attached above the gate to a wooden batten using a stapler. Each strip should form an overlap with the adjacent one, at least 1.5 cm. A curtain made in this way will return to its original position each time a car enters or exits the garage, while retaining heat.

However, for complete insulation, one curtain is not enough; you need to take care of the thermal insulation of the door leaf. The easiest way to do this is using the same polystyrene foam. It can be secured with or without lathing by gluing the sheets to the gate leaf.

If foam plastic is attached to a wooden sheathing, then all its elements are treated with special impregnations against mold and mildew immediately before fastening. The foam sheathing can be made in any way available material– you can use fiberboard, plywood, thin boards, etc. This type of lining can be primed with regular heated drying oil.

In order to prevent the penetration of cold through the gaps at the junction of the gate, a rubber seal is used. The metal surface in places of contact with the rubber seal must be treated with an anti-corrosion compound to prevent the formation of condensation.

Ceiling insulation in a metal garage

Besides walls and gates, ceiling insulation is prerequisite high-quality insulation of the garage space. The ceiling of a metal garage must be insulated on both sides - outside and inside. This way you will be able to achieve the maximum effect from thermal insulation work. From the outside, the ceilings of metal garages are usually insulated using painting materials.

But for interior work there are several options:

Painting with heat-insulating agent in several layers.
Applying a layer of liquid heat insulator.
Using expanded polystyrene boards or mineral wool.

The easiest way to mount heat insulation slabs to the ceiling is with bitumen mastics. If polystyrene foam is used, the seams between the plates are treated with sealant. Do not forget that mineral wool is hygroscopic - it absorbs moisture. The mineral wool layer must be protected with waterproofing.

If a metal garage has a single or gable rafter roof, then the insulation of the roof depends on the design features: If there is a significant distance between the rafters, mineral wool slabs can be laid between them, protecting them on top with a layer of waterproofing material.

It is advisable to carry out all work on thermal insulation of the truss roof during the construction stage.

When the distance between the rafters is small, insulation is laid under them, and waterproofing is attached to the rafters on top. If the garage has an attic, then it is best to insulate the ceiling by pouring a layer of expanded clay 20-30 cm thick. The expanded clay is covered on top waterproofing material and pour a thin layer sand-cement screed. But, as we mentioned above, for high-quality thermal insulation garage, external ceiling insulation alone is not enough - it is also necessary internal thermal insulation. The technology for its implementation directly depends on the material used:

Foamed foil polyethylene.

Attached to the ceiling of a metal garage with wooden slats. This material has high water-repellent characteristics. To achieve a better effect, sheets of plywood, fiberboard or chipboard are stuffed onto the slats that secure the polyethylene.

Mineral wool.

First of all, waterproofing is attached to the surface, after which the sheathing is installed. Mineral wool sheets are laid in lathing, protected with a layer of vapor barrier and sheathed with sheets of facing material.

Expanded polystyrene.

Plates of this material are glued to the ceiling using tile adhesive or bitumen mastic. In this case, lathing is not needed. To slightly increase the thermal insulation characteristics of polystyrene foam boards, a waterproofing sheet is installed under them.

The slabs can also be plastered, reinforced, covered with cladding, or left as is.

And, at the end of our publication, we will present a few important advice:

You can use polystyrene foam for internal insulation of the ceiling in a garage, but it is undesirable - it is a flammable and toxic material.
Application external thermal insulation mandatory if the garage is not adjacent to other buildings.
Producing insulation flat roof, do not forget about the slope, which should be at least 7 degrees. This necessary condition, otherwise water will accumulate on the roof.

We hope that the material presented in the article will help you get at least a superficial idea of how to insulate a metal garage from the inside.

svouimirukami.ru

How to insulate a metal garage with your own hands once and for all

A metal garage performs many useful functions. Caring car owners park their car inside it for the winter, other people simply store their summer harvest, and still others equip the box for a workshop. All these goals will be successfully realized if the garage is well insulated from the inside.

The minimum temperature for such a room is considered to be −5 degrees; Otherwise, the vegetables will rot, it will be cold to work there, and condensation will form on the car, causing rust. Therefore, it is advisable to insulate an iron garage from the inside in order to effectively retain heat.

Suitable materials for insulation

Traditional materials and new products, the quality of which only a few have been tested, can significantly increase the temperature inside a metal garage. Examples of good insulation materials are:

polystyrene foam (the most common material, characterized by low cost and ease of use);
penoizol (liquid form of the above, with a durability of over 40 years, good water resistance, fire resistance);
astratek (another liquid insulation; material applied in a layer 1 mm thick is comparable in quality to a five-centimeter layer of mineral wool);
polyurethane foam (durable material with a minimum service life of 50 years);
mineral or basalt wool (soft inexpensive insulation, second in demand after foam).

The listed materials are almost the same in quality, and the demand for one or another is usually determined by price. Therefore, polystyrene foam and mineral wool are considered the most popular.

Having decided on the choice of material for insulating the garage from the inside, you can begin preparatory work.

Required Tools

It is advisable to insulate the garage in the warm season, but sometimes the situation forces you to carry out work when sub-zero temperature. Here there is a need to insulate the box quickly and reliably. To use time efficiently, the following equipment is prepared in advance:

electric drill;
mask and gloves (protective);
welding machine;
building level;
screwdriver;
self-tapping screws;
metal scissors;
tape measure from 5 m;
staples and furniture stapler;
wooden blocks for the horizontal crossbars of the sheathing;
steel profile.

If all of the above is present, it’s time to start insulating the garage from the inside.

Preparatory stage

When lining metal structures, it is paramount to take care of anti-corrosion treatment. To do this, use a metal brush to clean off rust if it is present on the surfaces, and, if necessary, carry out patch repairs (specific small area), then paint the surface with a special anti-corrosion solution.

Sometimes the right question arises - how to insulate a metal garage for a long time if the surface is treated? Second important factor To ensure comfortable conditions inside the garage is to create ventilation. It should remove air from the garage, replacing it with fresh air. Otherwise, the accumulation of gases will cause condensation, which will negatively affect the load-bearing structure garage, car or stored food.

After waiting for 1-2 days for the applied anti-corrosion solution to completely dry, the insulation of the metal box from the inside begins. It is advisable to carry out the work in the following sequence - insulate the walls, then the ceiling, the gate with a wicket, and, if necessary, the floor.

Insulation of garage walls and ceilings

The process is discussed using an example basalt wool. This material has the following characteristics:

low thermal conductivity;
durability (from 50 years);
affordability;
preservation of qualities when humidity increases inside the garage;
comfort in working with the material;
mildew resistance;
environmental cleanliness;
non-flammability.

Sequence of internal wall cladding mineral insulation next:

The location of the sheathing is determined, and the amount of material required is calculated depending on the area of the sheathed surface. A steel profile is better suited for the frame, since wood collapses faster when interacting with moisture. Also, the latter material “leads” when slightly wet.
Vertical guides are installed. The distance between them should be 1-2 cm less than the width of the insulation so that it expands and efficiently takes up space. To strengthen the structure, crossbars are placed horizontally every meter, which here can be wooden.
The installed sheathing is surrounded by a membrane or other waterproofing material. The joints are taped, and the film is attached to the staples (a furniture stapler will do).
The insulation is placed inside the sheathing from bottom to top. There should be no gaps.
A layer of vapor barrier material is applied on top of the insulation (roofing material or polyethylene film are suitable).
The final stage is covering the sheathing. Performed non-flammable material; An example is steel siding or drywall.

It is important to take into account that when covering the garage from the inside, the space narrows. The insulation should not be too bulky.

When covering with foam plastic, you need to take into account some features of the material. It does not expand like cotton wool, so there is no need to make the distance between the frame guides 1-2 cm smaller. It is better to create the sheathing in blocks, the dimensions of which exactly match the dimensions of the foam. If there are any defects, the walls should be leveled first. It is also advisable to use an L-shaped profile and attach the insulation sheets with glue.

Work with liquid materials will be inconvenient, so it is better to line the top of the garage with foam. The fixation method is similar to that previously discussed, but there is one caveat - you should take care that there are no holes in the roof of the box. If there are any, welding will come to the rescue. As with walls, when insulating the ceiling, a layer of foam plastic is located between the hydro- and vapor barrier layer.

Entrance trim

Insulating walls will not be beneficial if cold air enters through the cracks of the entrance gate or wicket. The situation is easily solved by using rigid insulation such as polystyrene foam. First, the gates are insulated, then the small entrance door to them. The sequence is:

The metal surface is treated with protective mastic. Expanded polystyrene is not afraid of moisture, however, when opening the gate, raindrops or snow can get into the cracks between the material and the iron sheet. This should not be allowed.
Attach lathing profiles along the perimeter of the gate.
Fix the polystyrene plates to the mounting adhesive; it is advisable to apply penofol (a foil-based material) on top of them.
Make a wooden sheathing for installation of the cladding. Provide a distance of about 30 mm between the future lining/plasterboard/other cladding material and polystyrene foam, so that there is an air gap.
Fix the cladding to the sheathing.
Perform similar actions with the gate.

Floor insulation

Sometimes there is a need to insulate the bottom of the garage. For example, if there are large gaps or the importance of the caisson (cellar). A suitable material would be polystyrene foam, on top of which a material is applied that prevents its destruction from human movement. Follow these steps:

Level the surface, remove cracks and holes with putty.
Prime the floor twice if it is concrete.
Make lathing from steel profiles.
Apply a layer of waterproofing.
Apply glue, put foam on top of it, press it to the floor.
Screed the floor with a special solution. Extracted granules are added to increase strength.

Carrying out the operations described above will allow you to maintain optimal microclimate inside the garage. Even a beginner can master the process, and the result will be the safety of the car, food or other items of value stored inside the box.

remontami.ru

How to insulate a metal garage with your own hands - step-by-step instructions!

Initially, a garage is a room designed to store a car, ensuring its protection from adverse weather influences and attacks by intruders. However, the garage must not only be strong and reliable, but also properly equipped.

How to insulate a metal garage

First of all, you need to perform proper thermal insulation, because... sudden changes in temperature, together with other factors, can cause harm not only to the building, but also to the machine and other objects located in it. You can insulate a metal garage with your own hands without any problems. You just need to understand the procedure for performing such work and follow the instructions received in everything.

The floor is the first thing that should be insulated in a metal garage

Thermal insulation of a garage is a complex undertaking that includes finishing not only all surfaces, but even the gates. However, before starting any work, prepare necessary tools.

Tools and materials for insulating a metal garage

Additionally, you will need finishing material and fasteners suitable specifically for this material. Lining is usually used as cladding. Fibreboard, siding, moisture resistant drywall etc.

Garage, interior clapboard finish

Gather the tools listed and purchase the required materials. Measure your garage in advance to calculate required quantity materials and not waste time in the future on additional purchases of missing items. Take all the equipment to an insulated garage.

As already noted, the thermal insulation of a metal garage begins with finishing the floor. Remove the existing boarding and cover the exposed surface with plastic sheeting. It will serve as a waterproofing material. If a single piece of film is not enough to cover the entire area, lay the required number of pieces with an overlap of about 15 cm and obligatory gluing of the joints with metallized tape.

Lay the selected insulation over the waterproofing and secure new boards on top of it. Use self-tapping screws for fixation. Mineral wool or polystyrene foam is usually used as floor insulation. You can backfill, for example, with sawdust or expanded clay. Here, focus on your own preferences and budget.

Instructions for insulating a garage roof

Scheme for insulating a garage roof with mineral wool

In the vast majority of cases, the garage roof is represented single-pitch construction. This is the simplest and a budget option, which is perfect for a regular garage. The basis of this design is the rafters. Traditionally, they rely on the Mauerlat. The Mauerlat bars are laid on top of the garage walls and connected to them using anchor bolts. It is better if the thermal insulation of the roof of a metal garage is carried out simultaneously with its construction. Then the work will take much less time.

Roof structure

The rafter system is assembled from wooden beams with a cross-section of 15x15 cm. The rafters are installed with the same spacing, usually 60 cm. Here the main guideline is the width of the insulation slabs, which, in accordance with the standard, is 61 cm. The remaining reserve will allow the thermal insulation elements to be laid between the rafters as tightly as possible .

At the next stage, you need to arrange a vapor barrier layer. Special membranes are available for sale that are excellent for vapor barriers. This material is attached to the rafters using buttons or staples. The vapor barrier layer should be as tight as possible. All joints must be taped with tape.

From the inside of the building, the vapor barrier is sheathed with the preferred material. Usually lining or fiberboard is used, but the owner can choose another finish if desired. In this matter, everything is purely individual. The sheathing must be attached as carefully as possible, ensuring that the vapor barrier remains airtight. Any defects or damage must be repaired immediately using tape or sealant.

Place insulation between the rafters. Mineral wool is perfect. In most cases, a layer about 15 cm thick is sufficient. For the rest, be guided by the climatic conditions of your region. If your area is very cold, add more insulation.

Mineral wool is great for insulating garage ceilings

Further work is carried out using standard technology for roof installation. First you need to make a crate, the arrangement of which depends on the chosen roofing, then lay waterproofing on the sheathing and complete the “pie” with finishing material.

If work on thermal insulation of the roof of a metal garage will be carried out after the construction of the structure, be guided by the same scheme with some changes. So, thermal insulation will be laid between the rafters, a vapor barrier film will cover it on top, and the structure will be completed with a cladding of your choice.

Vapor barrier

When fixing thermal insulation boards, certain inconveniences may arise. To eliminate them, it is enough to simply secure the insulation so that it does not fall until the finishing sheathing is installed. To do this, attach strips of hydro- and vapor barrier material to the rafters in such a way that they prevent the insulation from falling.

The procedure for thermal insulation of metal garage walls

Prepare material for insulating the walls of a metal garage. The most popular and very effective option is mineral wool. The material is characterized by high fire resistance and excellent thermal conductivity. The only drawback is poor tolerance to contact with moisture. Therefore, special attention will also have to be paid to the waterproofing device. The insulation is laid in the sheathing. For external thermal insulation, a 10 cm thick layer of thermal insulation is usually sufficient.

Insulation of the garage

To attach the sheathing elements to the garage, use metal corners. To make the work easier and faster, it is recommended to pre-mark the places for installing the sheathing bars. Place them in 60 cm increments. Place a layer of vapor barrier material on the sheathing. Then cut the insulation boards to a suitable length, lay them in the space between the sheathing beams and cover them with waterproofing. To protect against moisture, in most cases, polyethylene film is used.

Insulation of a metal garage from the outside

Finally, the garage walls need to be covered with siding, finished with facing bricks, or decorated in another preferred way.

Covering an insulated garage with siding

If it is impossible to carry out external insulation of a garage, for example, if the walls of neighboring garages are adjacent to its walls, the insulation must be performed in the same sequence, but from the inside. Fibreboard, lining and other similar materials are suitable for interior cladding. They must be specially treated before use. For example, drying oil is used to treat fiberboard, and the lining is necessarily coated with an antiseptic and fire-retardant compound.

In most cases, it is recommended to avoid using polystyrene foam for wall insulation. The problem is that this material is not resistant to fire and, in addition, during the combustion process it releases substances that are extremely dangerous to humans. Therefore, mineral wool insulation is the best option.

Mineral wool is usually used to insulate garage doors. Extruded polystyrene foam is also well suited for this. The latter is characterized by good moisture resistance and thermal conductivity, it is extremely easy to use, is sold at an affordable price, but has a serious drawback - complete instability to fire.

Mineral wool is a fire-resistant material, but it also has its drawbacks. When wet, such insulation sharply loses its performance characteristics in general and durability in particular. Therefore, before you start decorating your garage door, carefully consider the choice of thermal insulation.

Clean the insulated surface from any contamination. Paintwork if present, it must also be deleted. A sheathing is installed along the contour of the products. Wooden blocks with a cross section of 30-50 mm are suitable for its assembly. Select the specific value in accordance with the thermal insulation layer. Cut the crossbar to the smallest possible width and then connect internal corners frames with external ones.

Glue the insulation to the gate. For this, ordinary mounting adhesive is used. The joints between individual thermal insulation elements should be filled with polyurethane foam. This will allow you to achieve the highest quality and effective insulation.

How to insulate garage doors

If polystyrene foam is used as insulation, it will be necessary to additionally lay penofol on top of it. Thanks to this material, a comfortable microclimate will be maintained in the garage at any time of the year. Place penofol with the foil part facing inward. For installation, use the same glue. Finally, attach the topcoat. Usually its functions are performed plastic lining.

Penofol thickness 10 mm

The mineral wool is attached in a slightly different order. First, the sheathing is also installed. Select the pitch between the beams so that it is 2-3 cm smaller than the width of the insulation. Place the insulating boards between the sheathing bars and secure them. Mounting adhesive and dowels are suitable for fastening. It is best to use them together.

Thermal insulation must be covered with a vapor-permeable membrane or ordinary plastic film. Finally, as in the case of expanded polystyrene, lining or other finishing facing material is installed.

Thermal insulation diagram for garage doors

Thus, insulating a metal garage is an extremely simple undertaking that almost anyone can do. You just need to carry out all stages of work in accordance with the instructions and remember to ensure high-quality insulation possible only with integrated approach with knowledge of the matter.

Good luck!

Video - How to insulate a metal garage

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Self-insulation of metal garages

Insulation of a metal garage is carried out using classic insulation materials or modern analogues that have a unique set operational properties.

The production technology of modern thermal insulation materials influences the formation of their cost. The price factor contributes to the fact that iron garages are most often insulated with foam plastic - despite some of the disadvantages of this material.

In this case, the cost of insulating one square meter will be approximately two times lower: if you use polystyrene foam, they will be $20, and if you use modern materials, they will be at least $40.

Other materials

Among such materials are the following:

Penoizol

It is a liquid form of polystyrene foam. It is characterized by durability (retains properties for more than 40 years), water resistance, and a high fire resistance limit.

Asstratek

Belongs to the category liquid insulation materials. The method of applying astratek is similar to applying paint, and the effectiveness of a layer of insulation with a thickness of only 1 mm is comparable to the thermal insulation properties of a layer of mineral wool 50 mm thick.

To apply thermal insulation per square meter of area you will need only 0.5 liters of astratek.

Polyurethane foam (PPU)

When applying polyurethane foam, special equipment is used. The service life of this insulation is more than 70 years.

Insulation from the inside

The walls of a metal garage are best insulated from the inside. In this case, work is carried out in a certain sequence.

Frame structure

A frame is a structure designed for mounting heat-insulating material on walls. Before you start insulating your garage with your own hands, you must:

prepare surfaces, clean walls;
make a false partition from plasterboard, onto the frame of which the heat-insulating material will be attached.

For the manufacture of the frame, wall CD profiles and UD guides are used. Installation of UD-racks to the floor and ceiling is done using dowels in increments of 0.25-0.3 meters. CD profiles should be installed using special hangers in increments of 0.6 meters.

The hangers used for installation are attached to the wall every 30 centimeters.

It is to them that the plasterboard, which is the facing layer, is attached.

Additional events

The inside of the garage walls requires special preparation, which includes plastering with a “warm” type of plaster or applying heat-insulating paint to the surface.

The ability to shift the dew point to the outside of the garage walls allows you to protect them from the negative effects of freezing and excessive moisture. Experts recommend installing the system forced ventilation, designed for high air exchange rates.

Application of liquid thermal insulation

The use of liquid thermal insulation, presented in the form of paint or polyurethane foam, is among the most popular options. The variety of paints used provides a choice: thermos paint, isolat, etc.

Liquid foam, which is a foam-like mass, is produced directly at the construction site using the so-called. foam generator.

Cured foam has the appearance of a hard crust with excellent adhesion.

Fastening foam boards with glue

Attaching foam plastic to glue is one of the simplest and most available ways insulation of garage walls from the inside.

When using it, it is necessary to pay increased attention to the issue of cleaning and degreasing metal surfaces.

This measure ensures reliable and durable fastening of the heat-insulating material.

It is best to fill the gaps formed between the sheets with polyurethane foam. After this, paint can be applied to the surface of the insulation.

When using polystyrene foam boards, it is necessary to remember about its increased flammability and the fact that during combustion a large amount of toxic substances are released.

Garage Doors

Insulating a metal garage also means insulating the garage door.

Curtain device

It is recommended to do this in one of the garage doors small door, and along the upper edge of the gate fasten a piece made of thick fabric or polyethylene film a curtain with a thickness of at least 0.8 mm, designed to retain some of the heat in the room. But it is better to use transparent plastic for this purpose, which provides sufficient visibility when leaving the garage.

The selected material should be cut into strips of such length that, when fixed above the gate, they are at a distance of 1 cm from the floor level.

The width of the strips can vary from 20 to 30 cm. The strips should be stapled to a wooden batten so that an overlap of 1.5-2 cm is formed between them.

Under the influence of gravity, the strips will hang evenly, and after a forced deviation, they will return to their original place.

Gate panels

It is recommended to use foam plastic for thermal insulation of gate panels. From the inside you should make a sheathing, which must be filled with foam plastic.

The gaps resulting from the junction of the gates must be eliminated using adhesive tape - this will prevent the entry of cold air. Rubber seals are also suitable for this purpose.

Anti-corrosion protection in places of contact between insulation and metal will prevent the appearance of condensation.

After applying the waterproofing layer, the frame is installed, which is the basis for future cladding. The frame elements must be coated with a primer to avoid warping and the spread of fungus, and it is recommended to clean the foam layer. The sheathing can be made from OSB (oriented strand board) or thin boards, and it is better to use heated drying oil as a primer.

Ceiling

For external insulation, painting agents can be used.

For internal insulation, the following options exist:

applying several layers of thermal paint;
gluing slabs of mineral wool or expanded polystyrene;
spraying one of the liquid materials.

It is best to glue the slabs using bitumen mastics. The seams formed when using polystyrene foam should be treated with sealant.

The insulation does not require special treatment, unlike, for example, mineral wool, which should be covered with a waterproofing layer to protect it from moisture.

For external insulation made of reinforced concrete slab ceiling, you can use extruded polystyrene foam, which should be glued to bitumen mastic.

To improve the waterproofing characteristics, roofing material or any under-roofing film is placed on top of the insulation.

Thermal insulation outside the roof guarantees the absence of humidity inside the garage and ensures transfer of the dew point.

Rafter roofs

Insulation of roofs with rafter system(with one or two slopes), is carried out - depending on the design features - as follows:

with a large distance (step) between the rafters, mineral wool is laid between them, and on top there is a continuous layer of waterproofing material (with edges overlapping at least 10 cm) and a finishing coating;
if the rafters are located frequently, the insulation must be laid under the rafters, and the moisture-proof fabric above them;
if there is an attic, the ceiling should be covered with a layer of expanded clay (20-25 cm), covered with waterproofing material and covered with a thin screed.

To make it more comfortable to work in the garage, and to make your car serve you much longer, it is worth insulating the garage.

Sudden changes in temperature outside can lead to the formation of rust, as condensation can form on the car as a result of temperature fluctuations. This cannot happen in a warm garage.

If you have a heated garage, it should be insulated even more so that heat retention is more effective. This will save you money that you spend on heating.

There are many ways to insulate a garage. Whatever you choose, you need to remember to leave some ventilation. The garage should receive 190 cubic meters of air per hour, provided that there is only one car in the garage. It is advisable that the temperature in the garage does not fall below +5... +10 degrees.

When insulating your garage, you shouldn’t make it too hot. The fact is that if the temperature in the garage is room temperature and the temperature outside is minus, you will expose the car to a sharp temperature change if you drive from the street into a warm garage. Moisture will appear on the car, which greatly contributes to the formation of rust.

To insulate a garage, you need to use materials that have low thermal conductivity. Such materials include polystyrene foam, mineral wool and similar materials.

Please also pay attention to the fact that your insulation is a non-flammable material, since in the garage there is often a risk of fire. Good insulation should also be waterproof.

How is insulation done?

You need to approach the insulation of a metal garage in stages. It is necessary to cover the doors, walls and ceiling with insulation. The most convenient insulation for a metal garage is mineral wool.

It is quite easy to install, it does not burn, it gives good insulation and is inexpensive compared to its analogues. Glass wool is not much cheaper than mineral wool, but it is highly flammable and deteriorates from moisture. You can also use polystyrene foam to insulate a garage. This material provides good insulation, is capable of sound insulation, and is resistant to moisture. Ordinary polystyrene melts, but there is foam impregnated with the PBS-S composition, which will go out when in contact with fire. Only this type of foam is suitable for insulating a garage. Another undoubted advantage of polystyrene foam is that it is easy to install.

Liquid foam insulation or other similar materials can be used.

How to carry out the work?

Before starting work, the garage must be emptied of all items in it. After that you can start.

If the walls of your garage are dented, it is advisable to straighten them. Be sure to wash off all the dirt from the walls so that there are no stains of oil, paint or other components on them.

To install foam sheets, you will need to attach an L-shaped profile to the top and bottom of the wall. It is metal and will serve as a limiter for the foam sheets. The foam is attached to the walls using special glue. The glue is spread along the wall pointwise or spread with a spatula. It is most convenient to start work from the bottom of the wall. Each row must be laid, tying the seams. The glue will dry completely after three days. For beauty, you can paste over sheets of foam plastic plaster mesh and paint it with façade paint.

If you plan to use mineral wool, you will have to make a sheathing. It can be made from wood or metal profiles. If used wooden beam, it must be pre-treated with an anti-fire composition.

The sheathing is nailed down or assembled using self-tapping screws. Can be pulled off metal elements bolts. You should get square cells with a pitch of no more than 60 cm. The lathing is attached to the wall. Mineral wool is inserted into the cells, after which the frame is covered with sheets of plasterboard.

How to insulate a garage ceiling

It is most convenient to use polystyrene foam, since it does not require lathing, and doing it on the ceiling is extremely inconvenient and is generally not recommended. The method of fixing foam plastic is the same as for insulating walls.

When insulating a garage, it is important to pay attention to the insulation of its doors. The gate takes up enough large space, and since the garage is metal, the cold comes from them. Moisture can penetrate through the gate and cold air can blow in.

Expanded polystyrene is traditionally used for gates. It has an advantage over mineral wool, since the latter deteriorates when exposed to moisture and requires the installation of sheathing. Expanded polystyrene can burn, however, having treated it with a special compound, you don’t have to worry about this.

Expanded polystyrene boards can be fixed assembly adhesive. The sheets must be arranged offset. The gaps between them will be filled with polyurethane foam, then the whole thing will be covered with foil and fixed with glue. Don't forget to leave some space for ventilation. The top of the structure is sheathed with a molding. You can replace it with a plastic analogue. Plastic for interior decoration premises are easier to install and, unlike wooden elements, it doesn't burn. It is not recommended to use corrugated sheets for this purpose, as they are metal and will reduce the quality of thermal insulation.

Video - insulating a metal garage with polystyrene foam

A metal garage is a strong, reliable structure with a high degree of burglary resistance. But it has one serious drawback - the high thermal conductivity of the steel sheets from which the structure is assembled. That is, the street temperature calmly migrates inside the garage through the fencing structures. It is cold in winter and hot in summer. Therefore, the owner of the building faces an important question: how to insulate a metal garage, from which a number of other questions arise:

what thermal insulation material is best to use for this;
What is the best way to insulate – from the outside or from the inside?

Garage insulated with foam plastic

External or internal insulation

The best option is external insulation. In this way, a shift in the dew point is achieved (formation of condensation at the boundary of contact between cold and warm air) closer to the outer surfaces of the insulating layer. And if you choose the right thermal insulation material with the lowest possible thermal conductivity, you can achieve a shift in the dew point to the finishing surface. The second positive factor is the low internal volume of the garage space in terms of overall dimensions.

As practice shows, this method is applicable if the garage is a separate building. If the task is to insulate a structure located in a row of several garages, then thermal insulation processes will have to be carried out from inside the building.

External insulation with polyurethane foam

Materials for garage insulation

Let's move on to the question of what is the best way to insulate an iron garage. Let's consider what materials are used for thermal insulation from the outside and inside.

Materials for external insulation

It is necessary to indicate that the walls and roof of the garage are insulated differently using various materials. And most often, the roof is thermally insulated from the inside, because the steel sheet that forms it will in this case serve as a roofing covering.

When it comes to walls, there are several options. Brick cladding (half or whole) is considered traditional. In this case, the bricklaying is done under jointing, that is, with the precise installation of each stone horizontally and vertically, with a joint thickness of no more than 8 mm. At the end of the work, the seams are leveled with a special tool - a scraper, made by hand or purchased in a store.

There are several points that need to be taken into account when insulating with bricks:

a small foundation is poured under the cladding: pouring depth is up to 15 cm, width is within 12-15 cm;
the steel sheets forming the roof must create a cornice at least 15 cm long to cover the cladding from rain and water from melting snow.

Metal garage lined with brick outside

Today, manufacturers produce special paints that increase the thermal insulation qualities of metal structures. They contain thermal insulation fillers in the form of foam glass granules, ceramics, or fiberglass fibers. In appearance, they resemble a thick paste, and are applied to metal surfaces with a thickness of 2-4 mm.

This is the best innovative option for insulating garages, easy to use, but expensive in terms of the cost of the material itself. Therefore, it never received its widespread use in everyday life.

Materials for internal insulation

Let's move on to internal insulation iron garages, as the most frequently used. All thermal insulation materials that are used to insulate buildings and structures can also be used when thermally insulating a garage from the inside. This means there is a fairly large list of materials offered.

But for many garage owners, the question arises with one additional question: how to insulate an iron garage from the inside yourself and inexpensively. That is, there are two positions in priority: with your own hands for little money (cheap).

As for inexpensive materials, everything will depend on which element of the structure needs to be insulated. If these are walls and a roof, then optimally either mineral wool in mats 100 mm thick, or polystyrene foam (common name), also known as polystyrene foam boards with a thickness of 30-50 mm. But if you make a choice from mineral wool and polystyrene foam boards, then it is better to give preference to the second. There is only one reason - low hygroscopicity. That is, the material does not absorb moisture, so after its installation there is no need to close warm layer from the inside waterproofing membrane. In the case of mineral wool, this will have to be done.

Expanded polystyrene boards

And one more reason. Installation of polystyrene foam boards can be carried out using a special adhesive composition. Mineral wool is laid along frame technology, which increases the cost and complexity of the work carried out due to the elements of the frame structure.

As for floor insulation, it is best to use expanded clay. It is added instead of crushed stone to the concrete solution used to fill the screed. And this is the problem of thermal insulation floor base The garage is closed.

Expanded clay concrete for garage floors

How to insulate with foam plastic

The process of insulating a metal garage with polystyrene foam consists of two stages: preparation and installation of the insulation. IN preparatory process includes surface cleaning metal sheets, forming the roof and walls, from dirt, rust and peeling paint. Any method that guarantees the quality of the final result will do. Most often, the usual one is used for this sandpaper. To increase the speed of the procedure, use a grinder with an attachment in the form of a metal brush.

Now about adhesive composition. Since a metal structure is subject to insulation, it is better to use special glue in a can for polystyrene foam boards. It's universal adhesive material in the form of foam, guaranteeing strength to metal. It is resistant to moisture and temperature changes. One can is enough to fasten 10 m² of slabs; it takes 30 minutes to harden.

Attention! Polystyrene foam does not expand in volume after its application, like mounting foam.

Polystyrene foam

Please note that the walls and roof of the garage are steel sheets welded to the frame of the building. The latter is made from a metal profile, usually from a 50x50 mm corner. The frame is covered with sheets of iron from the outside, that is, it remains inside. Therefore, it is important to precisely cut the sheets of polystyrene foam to the dimensions of the frame structure so that the insulation lies between the frame elements, pressing tightly against them. Trimming is done with a sharp knife.

Now you need to apply glue to the slabs: along the perimeter and diagonally. Expanded polystyrene sheets are placed at the installation site and pressed with your hands, but not too much. Installation is best done from bottom to top. There are several points to pay attention to:

Insulation boards have a low specific gravity, which makes it possible to vertical planes do not install supporting elements on walls. The foam itself is enough. But you will have to think about supports on the roof slopes. One option is regular tape, one end of which is glued to the insulation, the other to the steel frame element.
If there is a small gap between the slabs of heat-insulating material and the garage frame, you just need to foam it with glue.

Gates and doors are insulated in the same way as garage walls.

Installing polystyrene foam boards with glue

Insulating the roof of a steel garage

The option using foam plastic, which is laid along the internal planes of the roof slopes, is the simplest. The garage structure includes lintels that hold the longitudinal walls of the building together. Sometimes these lintels are used to form a ceiling. They are hemmed with sheet materials: plywood, chipboard, OSB or iron sheets, which are laid on wooden slats. The latter are attached to the jumpers either with self-tapping screws, or bolts, or with binding wire.

It is the insulation of the ceiling that will solve the problem with the roof. To do this, you will have to lay the sheet material, from the above. The sheets are attached to the jumpers with ordinary knitting wire in increments of 50 cm. That is, you need to:

drill holes in the flooring on each side of the lintels;
insert the wire into them so that the ends hang down on different sides of the frame element;
twist the wire along the bottom edge, pulling the sheets to the jumpers.

Now the foam plastic is glued to the laid sheets, and then the whole ceiling structure hemmed with sheets of plywood, OSB, fiberboard or chipboard. Although there are finishing options here great amount.

Ceiling insulation with foam plastic

Garage interior decoration

The difficulty of interior finishing of a metal garage after thermal insulation work is that finishing material there is nothing to attach it to. If a frame method of insulation were used, that is, with the installation of a frame made of wooden slats, then the finishing would be attached to it. But since the simplest option was considered - frameless, it is necessary to tell how you can attach, for example, a plywood sheet to the garage wall.

To do this, you will have to carry out additional preparation, which consists of welding a certain number of M6 or M8 bolts from the inside to the steel sheets that form the surfaces of the garage structure. The caps must be welded to sheets of iron.

The length of the fastener is selected based on the thickness of the insulation and the thickness of the finish. For example, the thickness of the foam is 50 mm, the thickness of the plywood is 8 mm, which means that you will need bolts 70 mm long, where 12 mm will be spent on fastening with a nut and washer. The number of fasteners is determined by the distance between them. There is no exact data here, so approximately 40-50 cm.

The process of insulation on fasteners is carried out in the following sequence:

An adhesive composition is applied to the foam sheet;
it is placed in the required place and pressed tightly with your hands;
insulation – the material is loose, so the bolts will pass through it easily;
The finishing material is cut to the required size;
the ends of the bolts are treated with chalk or paint;
apply the finishing panel to the required place; traces of chalk or paint will remain on its surface;
holes are made according to the marks using a drill and a drill bit, the diameter of which should be slightly larger diameter bolts;
the finishing panel is put on fasteners and clamped with nuts, under which wide washers must be placed.

Attaching foam and fiberboard sheet to the garage door

Insulating a garage from the inside with bricks

There are no contraindications to using brick to insulate a garage from the inside. Just brick cladding will reduce the volume of the building. This is a more complex process in terms of work, and it is more expensive than using foam plastic. In addition, in terms of thermal conductivity, brick is much inferior to polystyrene foam boards:

0.81 W/m K – thermal conductivity of solid brick;
0.032 – 0.044 W/m K – range of thermal conductivity of foam depending on its density.

It turns out that polystyrene foam laid 30 mm thick replaces a masonry of three bricks laid lengthwise.

Polyurethane foam for garage insulation

And a few words about polyurethane foam, the thermal conductivity of which is 0.019 W/m K. That is, it is better than polystyrene foam. But it is more expensive and requires special equipment to apply it. Until recently, such equipment consisted of huge containers and a compressor. Today, manufacturers offer compact devices whose weight does not exceed 30 kg.

These are two cylinders and a mini-compressor with hoses and nozzles. The cylinders have two components that are connected and supplied through hoses under pressure. The applied layer is thin (15-20 mm), please note - it is continuous, without seams or joints, and is more effective than many modern thermal insulation materials used for insulating garages. But if we compare it in terms of cost, it is inferior to the same polystyrene foam. Although good insulation cannot be cheap.

Insulation of a metal garage with polyurethane foam

There are several effective and inexpensive technologies for insulating iron garages. But, as practice shows, polystyrene foam is most often used if the conversation turns to DIY processes. There are no restrictions or contraindications in the use of this material. At the same time, the insulation has a number of good technical characteristics, plus the low price of the product itself.