We insulate the foundation with foam. Features of warming the basement of the foundation from the outside with foam plastic with your own hands. How to insulate the foundation of a house from the outside with your own hands: the best options for insulation

Before the invention of modern heaters, the foundations of private and multi-storey buildings they were insulated in the old fashioned way, and most often the function of warming the base was performed by heating pipes that passed through the basement. That is, energy resources were wastefully spent, and heat was supplied to apartments and houses with great losses. With the advent of penoplex and other effective heat insulators, the situation has changed radically - do-it-yourself insulation of the foundation with penoplex gives a powerful economic effect, and the heat that it generates heating system at home, is not wasted (the total savings while maintaining heat reaches 20%). In addition, foam insulation improves the moisture resistance of the base and walls of the building by an order of magnitude, and this increases the service life of concrete and brick structures of the house.

What is penoplex and why is it better than analogues

Traditional mineral heaters, rags went into the shadows after the appearance of extruded polystyrene foam on the construction market, even despite its high cost. Penoplex is not one material with certain properties, but a line of heaters, distinguishing characteristic which - the formation of a heat-insulating layer by foaming the original substance at high temperatures. In order for expanded polystyrene to start foaming, a gas mixture of carbon dioxide and freon (CFH 3 and others, CO 2) is added to it. The result of the interaction is a high-strength and dense substance, which has a uniformly distributed structure with granules Ø 0.1-0.2 mm in the composition. Expanded polystyrene is produced in slabs different sizes and dimensions.

Speaking of "penoplex", builders mean insulation, but in fact it is a branded Russian trademark of a company that produces extruded polystyrene foam for construction needs - this is insulation of the basement and other surfaces and structures of buildings, and thermal insulation of communication pipes, and protection from road frost coatings. Each brand of PPU is endowed with its own unique characteristics, optimally suited to the place of application of the insulation. So, the thermal insulation of the foundation from the outside with foam is carried out mainly by the brands Penoplex Foundation, Penoplex Comfort or Penoplex 45.

The advantages of this substance are obvious:

1. The minimum coefficient of thermal conductivity among analogues: λ = 0.03-0.032 W / (m × K). In practice, this means that polystyrene boards much smaller thicknesses are used than usual;
2. High compressive strength - 27000 kg / m 2;
3. Low coefficient of moisture permeability. If you keep such a plate in water for a month, then it will be saturated with moisture only by 0.6%. This indicator is very important, since the basement and foundation of the house are constantly in an environment with high humidity, experiencing the effects of precipitation and ground water;
4. Extruded polystyrene foam can be operated in the temperature range -50 0 С/+75 0 С;
5. The small mass of the plates makes the installation of the insulation simple and quick, while it is practically not loaded with additional weight of the material, therefore, the insulation of the foundation with foam plastic is considered the most effective and least expensive;
6. PPU is not infected with fungi, does not decompose under the influence of moisture and aggressive external environment, is non-toxic and is recommended for use in residential and sanitary construction;
7. The ease and speed of mounting the plates is ensured not only by their low weight, but also by the presence of the "groove-thorn" system. Also, the material is easily amenable to any mechanical processing. Including manual;
8. The guaranteed service life declared by the manufacturers is at least 50 years.

Thermal insulation of the basement or foundation from the outside with foam plastic is the maximum duration of operation of the building material of the base plus fire safety according to group G4. This means that the material can catch fire, but given its constant presence in the ground without air access, plus the protection of the insulation layers with plaster, this is almost impossible. The dimensions of the expanded polystyrene plates are 600 x 1200 mm, the standard plate thickness is from 20 to 100 mm (in steps: 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm).

Which is better - external or internal insulation of the foundation

When insulating your house, in particular, the foundation, you should first of all calculate the thickness of the material and its properties for right choice brands of insulation, and you can make fairly accurate calculations on your own. The formula looks like this:

R \u003d h 1 / λ 1 + h 2 / λ 2;

1. R is the resistance to heat transfer in the region;
2. h 1 - the thickness of the walls of the base, mm;
3. λ 1 - thermal conductivity of the base building material;
4. h 2 - the thickness of the expanded polystyrene plate;
5. λ 2 - .

Example: when insulating a reinforced concrete foundation with characteristics λ = 1.69 W / m K and a wall thickness of 400 mm, the calculations will look like this:

1. 3.2 \u003d 0.4 / 1.69 + H 2 / 0.032;
2. 3.2 \u003d 0.24 + H 2 / 0.032;
3. 2.96 = H 2 / 0.032;
4. H 2 \u003d 0.0947 m, or ≈95 mm.

Result: With a foundation wall thickness of 400 mm, it is necessary to purchase foam plastic slabs 100 mm thick. When calculating, rounding should be done up, providing a margin.

In order to prevent the appearance of "cold bridges", "dew points", and to bury all the cracks, cracks and joints, it is recommended to fix the outer foam in two layers in a checkerboard pattern. That is, with an estimated thickness of the heat insulator of 100 mm, two layers of plates 50 mm thick can be used. The total number of plates is easy to calculate: in one package - 8 units.

Thermal insulation technology

When insulating the foundation with foam plastic, the technology must be strictly observed, taking into account the cost of the material. - a very technological material. If the foundation tape is insulated from the inside to the outside, then the installation sequence will be as follows:

1. Foundation;
2. waterproofing layer;
3. A layer of foam boards;
4. A layer of cement-based plaster;
5. Ground pillow;
6. Again, a layer of foam boards - under the blind area;
7. The blind area itself.

When warming from the bottom up, the following sequence is used:

1. sand cushion;
2. A layer of foam boards;
3. Foundation;
4. waterproofing layer;
5. Subfloor concrete screed;
6. A layer of waterproofing along the end of the foundation wall;
7. A layer of foam slabs along the end of a part of the foundation slab. The slabs are laid from the beginning of the sand cushion and above the level of the soil surface by 0.4-0.5 m;
8. A layer of foam boards under the blind area;
9. The blind area itself.

How to insulate the foundation with polystyrene foam

First step - excavation with foundation. An option is being considered with an already built house and insulation of the finished foundation. A foundation is dug in along the perimeter to the full depth - it is necessary to make a trench up to 1.5 m wide parallel to the base. If the foundation is laid higher, then the insulation is still laid to the freezing depth, that is, below the base.

Important: extruded polystyrene foam (penoplex) should not come into contact with acetone and its derivatives, as well as with benzene and alcohol-based solutions.

In parallel with the trenching, the foundation is drained - for this, drainage pipes are laid along the perimeter of the building at a distance of up to 0.6 m from the base. For them, a separate trench is dug with a crushed stone-sand cushion at the bottom with a layer of up to 10 cm. The last layer in the cushion will be geotextile, on which drainage pipes are laid. Pipe slope - 20 mm per 1 meter. From above, the pipes are covered with the same pillow and wrapped in geotextiles. Pipes are discharged to a local storm drain.

The walls of the base are aligned using the following technology:

1. Beacons (perforated ribbed metal corner), on which the insulation will be mounted, are attached in increments of up to 1.5 m from each other. Height for beacons - from the lower surface of the base and 0.5 m above the ground;
2. The solution is prepared in a ratio of 4: 1 (sand - cement) to a thick state, is thrown onto the entire surface of the walls between the lighthouses, leveled with the rule;
3. After hardening of the draft layer, the last layer is applied for general leveling of the surface.

The next layer - waterproofing, should consist of two layers. These are bitumen and TechnoNIKOL plates. Bitumen is applied with a brush or roller in a layer up to 5 mm over the entire surface. After it dries, the TechnoNIKOL plates are glued from the bottom up, with the rear side heated by a gas burner. The plates must be overlapped, with an overlap of 10 cm, the joints are smeared with bitumen.

The first and second layers of foam are attached vertically pointwise, from bottom to top, using acrylic adhesive, or adhesive compositions on an inorganic basis. All plates are connected by the “groove-thorn” system, the joints are filled with glue or construction foam.

Plastering a heat insulator performs two tasks - protecting the walls and leveling them. On top of the plaster, a metal or fiberglass reinforcing mesh is attached, and it is also plastered with a thin layer. After the plaster has hardened, the trench is covered with soil.

Backfilling with soil is the last step in warming the base of the house. First, a pillow is made of sand and small gravel, followed by ramming at a depth of 0.3-0.4 m from the surface of the covered soil. Then any waterproofing agent (polyethylene, roofing felt) is laid on the sand, and foam plastic is laid on top. Joints and seams (both roofing material and foam plastic) are coated with bitumen or acrylic glue.

The blind area is made in the form of an inclined cement screed- for the removal of rain and melt water. The foundation can be finished with natural or artificial stone, ceramic tiles, siding or lining. The quality of foundation protection will be much higher if certified materials are used and the technology of all processes is followed. With the proper arrangement of the foundation with insulation, you can completely forget about repairing the foundation.

Until quite recently, no one really thought about the thermal insulation of the foundation, and all heat losses were compensated for more powerful heating. Today, the policy of saving energy resources makes us take a fresh look at the problem. It turns out that the insulation of the foundation will not only help to avoid almost 20% of heat loss, but will also provide the foundation with comfortable conditions, increasing its service life. As practice has shown, properly waterproofed and insulated foundations are longer not subject to destruction, which means they “live” longer. In the question of the better to insulate the foundation, the good old polystyrene foam was intercepted by a new material - extruded polystyrene foam. Despite the fact that this material costs almost twice as much as polystyrene foam, insulation of the foundation with Penoplex is becoming a widespread fashion. And all thanks to its unique qualities and durability.

Meet Penoplex

Extruded polystyrene foam is a whole kind of materials made from expanded polystyrene by foaming it at high temperature. As a blowing agent, seven of the gases of freon and carbon dioxide are added to the composition. The result is a durable material with a dense uniform structure, which contains 0.1 - 0.2 mm granules.

Penoplex is the name of one of the Russian trademarks, which produces extruded polystyrene foam for various needs, whether it is insulation of the roof, pipes, roadway, house walls or its foundation. Each of them has its own unique features that are relevant to the specific application. For insulation of foundations, Penoplex Foundation slabs and less often Penoplex 45 are used.

Benefits of using Penoplex for foundation insulation obvious:

• Low thermal conductivity (λ=0.03-0.032 W/(m×°K)). This indicator is the lowest among publicly available heaters, which means that plates of smaller thickness will be required.
• Exceptional compressive strength - 27 t / m2, which is very important, since enormous loads act on the foundation.
• Practically does not absorb moisture. As experiments have shown, for 30 days spent in water, Penoplex plates absorbed and filled with moisture only by 0.6%. Given the constant influence of groundwater and rainwater, the low water absorption of the material guarantees the protection of the foundation from moisture, and the insulation itself will not collapse or change its properties from constant contact with water.
• Wide temperature range - from -50 °С to +75 °С. The material withstands both severe frosts and heating.
• Light weight facilitates installation work and allows not to additionally load the foundation.
• Penoplex is not afraid of mold, does not rot and does not decompose. It doesn't get mice.
• Resistant to many aggressive substances that may be in the ground.
• Material does not emit harmful substances and fumes and is safe for use in residential construction.
• Penoplex plates are easy to install, as they are made with a tongue-and-groove system, they are easy to cut, glue and fasten.
• The material is exceptionally durable (up to 50 years).

Thermal insulation of the foundation with Penoplex plates will ensure the durability of the structure and material of the foundation, as well as the basement or basement. I would like to note that Penoplex Foundation has a fire resistance class - G4, i.e. lit. But given the fact that the material will be hidden by a layer of plaster and soil, this is not scary.

Penoplex Foundation is available in slabs with dimensions of 600x1200 mm and a thickness of 20 - 100 mm (20, 30, 40, 50, 60, 80, 100). This allows you to choose the material of the required thickness for each specific case.

What is the best way to insulate the foundation - from the outside or from the inside

The location of the insulation on the foundation - outside or inside is very important. In order to protect the foundation as much as possible from negative impact environment, it is necessary to insulate the foundation from the outside. But this is easier to do during the construction process than during the operation of the house. So, for example, those who want to insulate the foundation of an old house really do not want to dig out the walls of the foundation, as this is laborious, hard and long. But know that the insulation of the foundation from the inside is actually the insulation of the basement or ground floor, but not the foundation, since the structure and material of the foundation remain unprotected and are subject to the influence of moisture, frost and heaving of the soil.

Benefits of insulating the foundation from the outside:

• The foundation is protected from freezing, the cold does not penetrate inside.
• Foundation concrete is protected from moisture and numerous defrosting-freezing cycles, which prolongs its service life.
• Serves as an additional barrier for ground and storm water, presses and protects the waterproofing layer from mechanical stress.
• Copes well with seasonal temperature changes.
• In the basement or basement floor, an optimal microclimate is created.
• The dew point shifts, which has a beneficial effect on the foundation material.

If you decide to insulate from the inside, be prepared for the fact that the foundation remains unprotected from frost, heaving of soil and water. As a result, seasonal temperature changes, frosts and heaving of soils will lead to the appearance of cracks in the foundation and its deformation. Think about it, maybe it’s worth doing everything right once, than limiting yourself to half measures.

Calculation of the thickness of Penoplex for thermal insulation of the foundation

The first question that is of interest when insulating the foundation is how thick the material should be taken. To determine this, you will have to perform a number of calculations. Although the manufacturer indicates the minimum thickness of Penoplex for different regions construction, it is still better to calculate everything yourself.

R is the resistance to heat transfer for a particular region. For Moscow and the Moscow Region, it is 3.2 m2x°K/W;

H1 - foundation thickness;

λ1 - coefficient of thermal conductivity of the foundation material;

H2 - thickness of the insulation material (Penoplex);

λ2 - coefficient of thermal conductivity of Penoplex.

If we are going to insulate a reinforced concrete foundation (λ = 1.69 W / m * ° K) with a thickness of 400 mm (0.4 m), then we get:

3.2=0.4/1.69+H2/0.032;

3.2=0.24+H2/0.032;

H2=0.0947 m. This is approximately 95 mm.

In total, it turns out that to insulate a foundation with a thickness of 400 mm, Penoplex is required with a layer of 100 mm. Do not round down, it is better to take with a margin. For insulation of the foundation with Penoplex, the price depends on the area to be covered with plates and on the thickness of the material.

For example, the height of insulation is 2 m, the length of the walls is 10 + 8 + 10 + 8 m (for a house 10x8 m). It turns out the area of ​​\u200b\u200binsulation is equal to - 72 m2. The area of ​​one Penoplex plate is 0.72 m2. To insulate the foundation, we need a minimum 100 slabs of material.

In order to avoid cold bridges as much as possible when insulating with Penoplex and to block all joints and cracks, it is recommended to lay the insulation in two layers with an offset, in a checkerboard pattern. If 100 mm of insulation is required, then two 50 mm plates must be used. In total, we need 200 Penoplex plates 50 mm thick. There are 8 plates in the package, so we buy 25 packages. Total insulation material will cost 930 - 950 USD.

To insulate the foundation with Penoplex, the cost of the insulation material is the lion's share of the budget. It will be necessary to add to it the cost of waterproofing, bituminous mastic for gluing insulation, dowels, umbrellas, cement for plastering the surface. All this is just a trifle compared to the total cost of insulation work.

Foundation insulation technology with Penoplex

Penoplex is a very technological material. But in order to take full advantage of its benefits, it is better to follow the technology of its application for different cases.

Warming strip foundation Penoplex(insulation cake from inside to outside):

• Foundation wall.
• Waterproofing.
• Plates Penoplex.
• A layer of cement-sand plaster.
• Backfilling with soil or sand, expanded clay.
• Penoplex plates (horizontally) under the blind area.
• Blind area.

Warming slab foundation Penoplex(pie from bottom to top):

• Sand.
• Plates Penoplex.
• Concrete slab.
• Waterproofing.
• Floor screed.
• Waterproofing of the end part of the concrete slab.
• Penoplex slabs on the end of the slab, laid from the depth of the sand bedding to the very top - 40 - 50 cm above ground level.
• Penoplex plates under the blind area.
• Blind area.

Please note that Penoplex slabs can be laid on the foundation slab directly under the floor screed.

Do-it-yourself insulation of the foundation with Penoplex

All work on the insulation of the foundation with Penoplex can be done independently, without resorting to the help of construction organizations. At least you can save some money on this. Of course, it is much more convenient to make insulation at the construction stage, even before backfilling the pit around the foundation. But if the moment is missed, and now there is a need to insulate the foundation of an old house in operation, then you have to sweat. Also keep in mind that re-digging the foundation can cause cracks to appear on it, as the house will sag unevenly. This is dangerous, so it makes sense to calculate the loads before starting work.

Consider just this more laborious option.

Excavation

The first task is to dig the foundation. Along the perimeter of the whole house, a trench is dug up to the depth of the sand itself, i.e. to the entire depth of the foundation, and a width of at least 1 - 1.5 m. The depth of the strip foundation usually drops to the level of soil freezing in winter, this indicator can be found in the local geodetic service.

Despite the fact that Penoplex does not pass or absorb moisture, it still makes sense to equip a high-quality drainage. It is especially necessary if in the construction zone high level groundwater or heavy floods. We equip the drainage at the level of the sand cushion under the foundation. Along the perimeter of the whole house at a distance of 50 - 60 cm from the walls of the foundation, we dig a shallow trench for drainage pipes. At the bottom of the trench we pour sand with a layer of 5 - 10 cm, then crushed stone 5 - 10 cm, then we spread geotextiles, the edges of which we wind beyond the edges of the trench. Inside the trench, we lay drainage pipes with holes directly on the geotextile. The slope when laying drainage pipes should be at least 2 cm per 1 m. Then we sprinkle everything on top with crushed stone with a layer of 10 cm, wrap the edges of the geotextile so as to wrap the pipe with them. Pipes must be taken to the well for storm sewers.

Foundation surface preparation

The foundation wall and basement must be cleaned of soil residues, broken pieces of concrete and other dirt. To do this, you can use a brush with hard synthetic fibers. After the surface has been completely cleaned, it must be leveled. Smooth surface- the key to the durability of the waterproofing coating, which can damage any sharp protruding edge or piece. It is extremely rare that after some time of operation, the foundation walls remain perfectly smooth, so they need to be plastered.

Leveling foundation walls:

• At a distance of 1 - 1.5 m from each other, we install and fix beacons. You can use perforated guides. We install beacons to the entire height to which we are going to mount the insulation - from the very bottom of the foundation to a level of 50 cm above the ground.
• We knead the solution: 4 parts of sand and 1 part of cement, fill it with water and knead to a thick consistency, but the solution should not be dry. The liquid solution will immediately drain from the surface.
• With the help of a trowel, we throw the solution on the walls of the foundation. We make sharp movements with the hand, we begin to throw from the bottom up.
• When the entire surface is filled with a solution, we take a rule 2 m long, apply it to the beacons and stretch it from top to bottom, removing excess solution. It is advisable to pull the rule not straight down, but to make slightly undulating movements.
• After the first layer has dried, a second layer can be applied - leveling.

Important! If there were differences of more than 2.5 cm on the walls of the foundation, then for plastering it is necessary to use additional reinforcement. You can use the chain-link mesh, fixed with staples.

Do not continue work until the leveling solution is completely dry. It will take from 7 days to 20 if the foundation was poured a long time ago. If we are insulating a new foundation, then it is necessary to wait a month until the moisture is completely removed from the concrete.

Foundation waterproofing

High-quality waterproofing of the foundation is best done in two layers: the first is bituminous mastic, the second is TechnoNIKOL sheets.

Bituminous mastic you can buy it ready-made - unpack and spread it, or cook it yourself from a purchased bitumen bar. If you bought dry bitumen, then you need to melt it in a container, then add used oil (motor oil) to it at the rate of 50 liters of oil per 120 - 150 kg of bitumen. The oil will add plasticity to the bitumen and then it will not crack during frost.

Using a roller, we apply bitumen with a layer of 2 - 4 mm on the entire surface of the foundation and plinth. We try to fill all the cracks and small pores. When the bitumen dries glue sheets of TechnoNIKOL. We glue the sheets from the bottom up, melting their back side with gas burner. We keep the burner at a distance of no closer than 20 - 25 cm, otherwise TechnoNIKOL burns. We smooth each glued sheet, releasing air from under it. We glue the sheets with an overlap of 10 cm, then coat the joints with mastic.

Important! Many perform waterproofing of the foundation only with the help of TechnoNIKOL sheets. It's not the best The best decision, as it does not allow filling small cracks and pores. And if moisture gets under the sheets, they will quickly peel off. But smearing with mastic protects the surface more efficiently, although the process itself is very dirty and laborious.

Insulation of the strip foundation with Penoplex

After finishing waterproofing works you can start fixing the heater.

Important! Very important nuance- You may come across recommendations that in order to fix the Penoplex plates, it is necessary to reheat the bituminous waterproofing and glue the material on it, in fact, you should not do this. There is a high chance of damaging the waterproofing.

We fix the Penoplex plates to the foundation in a vertical position, starting from the bottom up. To fix we need acrylic adhesive or any other adhesive on inorganic solvents. Glue is applied to the Penoplex plate pointwise - 5 - 6 points. Then we press the plate to the surface of the foundation and press it down to secure it. We wait 1 minute. All subsequent Penoplex plates are also fastened, only with the already fixed ones they must be connected using the tongue and groove system. Filling gaps between tiles mounting foam or acrylic adhesive.

We also fasten the second layer of Penoplex plates - with glue, but with an offset to block the joints between the plates of the first layer.

Important! The fixing of Penoplex plates on that part of the foundation that will be sprinkled with soil cannot be done using mushroom dowels, as this can damage the waterproofing layer.

Dowels can only be used on the plinth, where 5 dowels (120 mm long, 10 mm in diameter) are fastened to each plate. Holes from dowels must be covered with acrylic glue. We continue further work only after the glue has completely dried.

Surface leveling

Now the Penoplex insulation must be protected from the effects of soils, for this we plaster the surface again.

On top of the Penoplex, we fix a reinforcing mesh made of fiberglass, we join the fabrics with an overlap of 10 - 15 cm, so that cracks or chips do not form at the joints of the mesh attachment.

Some sources recommend that all leveling be done with only one acrylic adhesive, applying it in several layers until the surface is leveled. But you can perform a classic leveling with a cement-sand mixture. After the plaster layer has completely dried, you can fill up the pit.

Backfill and warm blind area from Penoplex

Instead of the soil removed from the trench, sand or expanded clay can be poured under the house to improve thermal insulation. Although you can fill up the soil that was there. But not to the end. The final stage of foundation insulation is a warm blind area.

Approximately at a depth of 30 cm from the top, we fill in a 10 cm layer of sand and carefully tamp. Then we spread from the foundation itself a width of 1 - 1.5 m from it waterproofing material. It can even be an ordinary roofing material, the joints of which are carefully smeared with bitumen. After hardening, Penoplex plates are laid on top, the joints are smeared with acrylic glue or filled with mounting foam.

When the insulation layer is laid on the ground, it is possible to equip the blind area from above. For this, it is poured concrete screed under a slope from the foundation of the house to divert sewage and storm water from it.

The basement of the house, on which Penoplex is also fixed, must be decorated with stone, clinker tiles or in any other way.

Remember - a high-quality protected foundation is the foundation of your home. Make waterproofing and thermal insulation on time, and you will not have to regret it, and you will not remember about the overhaul of the foundation for a long time. Penoplex is an excellent technological material that is very convenient to use for basement insulation, it is easy to install and does not require special treatment. It is important to know only one thing - extruded polystyrene foam is destroyed by contact with acetone, benzene, alcohol and other organic solvents.

Insulation of the foundation with Penoplex: video

Building a country house is the dream of many of us. But in order to provide the necessary conditions for a favorable stay for the whole family in winter and summer, it is imperative to insulate the foundation of the house from the outside. Without thermal insulation, not only the level of heat loss increases, but also there is a danger of destruction of the underground structures of the structure.

In the suburban area

Due to the high-quality insulation of the foundation and the basement, heat is retained in the room, the penetration of groundwater is prevented, and protection from low temperatures is also provided. In order to prevent the impact of an aggressive environment on the foundation of the house, protective measures are taken, and the most important of them is external thermal insulation.

Insulation requirements.

To obtain a high-quality result, it is not enough only the professional implementation of all activities.

Choosing the right one is also an important factor. Supplies and their high quality.

Choose a heater that is optimally suited for a specific purpose both in terms of quality and financial side, pretty hard. After all, today you can find many options for heaters of various price categories and from different manufacturers.

Do-it-yourself installation of extruded polystyrene foam on the plinth

Therefore, when choosing, you should pay special attention to the following qualities of the material:

1. Low hygroscopicity. This parameter is very important, as it determines the degree of moisture absorption. At a high value, the material will absorb moisture and, as a result, will collapse, which will lead to the destruction of the base itself.
2. High strength. The heat insulator must withstand heavy loads of underground compressive effects. For example, the impact of the soil, which increases in volume when it freezes.
3. Low thermal conductivity. The heat insulator must have a reduced thermal conductivity to ensure good thermal insulation.
4. Long service life. A heat insulator should have approximately the same lifespan as a building, because its replacement is a rather laborious process.

Given all these requirements, you can choose the most suitable material for warming the house outside with your own hands.

Coating waterproofing and foam

The choice of heat insulator

To insulate the foundation of a house from the outside, it is important to choose a material that, in terms of its properties, is most suitable for the building, taking into account all its features and climatic conditions of the area. Today, the most popular among many consumers are:

• expanded polystyrene;
• liquid polyurethane foam;
• extruded polystyrene foam.

Styrofoam

It is an improved version of polystyrene and its derivatives and is a gas-filled material. Widely used in various construction and industrial sectors.

Penoplex installation

The main advantages are:

1. Low degree of thermal conductivity. Allows you to keep the heat in the room. For example, a material 11 cm thick gives the same results as a two-meter brick wall.
2. Waterproof. Moisture absorption is about 6%, which allows the material to be used in high humidity conditions without fear of deformation.
3. Long service life. Withstands up to 60 cycles of operation in temperature conditions from -40 to +40 С.
4. Insensitivity to biological influences. The material is not exposed to microorganisms, mold and fungi.
5. Environmental friendliness. Substances that are harmless to human health and the environment are used in the production, so expanded polystyrene is also used in the food industry.
6. A light weight. Thanks to him, the insulation of facades becomes easy and does not take much time.
7. Heat resistance. When ignited, fire-resistant grades of polystyrene foam are prone to self-extinguishing.
8. Noise isolation properties. This is especially important for owners of houses and apartments in noisy areas. The use of polystyrene foam sheets 3 cm thick for insulation can reduce noise by 25 dB.
9. Vapor resistance. The indicator depends on the density and structure of the expanded polystyrene grade. Varieties with low vapor permeability are similar in this indicator to some types of wood: pine, oak.
10. Chemical resistance. The substance is not exposed to the aggressive action of ethers and alcohols, however, it is destroyed under the influence of solvents.
11. Resistance to mechanical influences. The mechanical strength during stretching is about 20 MPa.
12. Relatively low price, which increases the availability of the material for many consumers.

Wiring diagram

So, polystyrene is perfect option for use in various purposes, especially for the thermal insulation of the foundation.

Liquid polyurethane foam

Liquid polyurethane foam is a polymeric insulation that is widely used to obtain a uniform insulating coating.

This is one of the few materials that are both a heat-insulating, vapor barrier and waterproofing layer. They allow you to significantly save money and labor costs during the performance of thermal insulation work.

cutaway

The advantages of liquid polyurethane foam are:

1. Low degree of thermal conductivity. This allows you to significantly reduce heat loss.
2. Long service life. The service life is more than 30 years.
3. The ability to create a favorable microclimate in the room due to optimal performance thermal conductivity and sound insulation.
4. Significant strength. Due to good indicators of density and strength, the material is able to withstand large mechanical loads without losing its operational properties.
5. Absolute sealing, which is very important when performing any kind of insulation work.

Liquid polyurethane foam

Thermal insulation of the foundation using a liquid polymer can be carried out both from the inside and outside. For outdoor use, additional protection from direct sunlight may be required.

Protection is carried out by applying liquid rubber or facade paint, which prevents the loss of waterproofing properties and increases the service life.

Extruded polystyrene foam

It is a relatively young type of polymer heat insulator and is produced by foaming raw materials during the extrusion process. Due to a number of advantages, the material has won the trust of many consumers and is now widely used in various fields of construction.

Formwork for the blind area

The advantages of the material are:

• low water permeability;
• low thermal conductivity;
• resistance to chemical action of inorganic solvents;
• ability to withstand a wide range of temperature changes: from -50 to +75 C;
• long service life;
• a light weight.

Installation drawing

Extruded polystyrene foam is widely used for internal and external insulation of buildings, roofs, is integral part sandwich panels, etc. One of the most common varieties is penoplex.

Insulation of the foundation from the outside with foam plastic is relevant and popular due to its excellent performance. Such plates have increased strength and withstand huge loads, providing excellent waterproofing and groundwater drainage.

Do-it-yourself thermal insulation of the foundation with foam plastic allows you to solve several problems at once related to the construction of the foundation and basement equipment.

Foundation thermal insulation

Usage modern ways thermal insulation is of great importance, especially in areas with harsh climatic conditions. This prevents a significant part of heat loss and freezing of soils, which increase in volume, which leads to a rise in their level.

Insulation of the foundation with polystyrene foam

Insulation of the foundation of the house outside with polystyrene foam is great option to improve the thermal insulation qualities of the base of the house and prevent freezing.

Expanded polystyrene is an improved type of polystyrene. Its use is more profitable, and installation is easy.

The video tells in detail about the insulation of the base of a residential building with your own hands.

The process is carried out as follows:

1. Foundation preparation. This stage can be carried out both during the construction of the building, and after its completion. To do this, dig out the foundation, clean it of soil, debris, rust and grease.
2. Sheet selection. In this case, you need to pay attention to two factors: density and thickness. Basically, sheets with flame retardant additives and a density of 35 kg / m3 are used.
3. Waterproofing. This will prevent the impact of groundwater and its penetration through the insulator layer.
4. Fastening polystyrene sheets with contact adhesive. You can attach two layers, but so that the panels of the second layer cover the joints of the first.
5. Protection of the insulation with a reinforcing mesh to avoid strong mechanical stress and the penetration of rodents. A layer of cement mortar can be applied to the protective mesh.
6. Providing drainage. This step is considered mandatory when building a building on wet soils.
7. Basement insulation. The basement also needs to be insulated in the same way, followed by finishing. After the glue dries, the panels are additionally fastened with nails.
8. Soil warming. The event involves isolating the surrounding land with a blind area insulated with expanded polystyrene plates.

Insulation of the foundation and blind areas can significantly increase the temperature in the structure and protect the base from destruction.

Foundation insulation with liquid polyurethane foam

It is considered a fairly effective method that reduces heat loss by 20–25%.

The main difference is the method of application using special installation for spraying.

To do this, two liquid components are mixed with each other, forming a thick foam. When applied, it expands and hardens, forming a protective seamless layer with excellent thermal and waterproofing properties. The optimum application thickness is 60 mm.

wooden structure

The polyurethane foam layer can be applied at a temperature not lower than +5 C. Surface preparation involves cleaning from contaminants, and surface quality is an unimportant factor.

When solidified, the foam changes color. When performing work, various problems can arise related to equipment and neglect of weather conditions.

For example, when applied in sub-zero temperatures, cracks may occur, which must be repaired in the future, otherwise water may accumulate in them and freeze. After polymerization, the polyurethane foam layer has low plasticity.

Foundation insulation with EPPS

As a rule, not all heaters are suitable for thermal insulation of the base. To choose the right material for this purpose, you need to take into account its service life: it must be as durable as the building itself.

Insulation with extruded polystyrene foam (EPS) is considered a more reliable method than, say, foam plastic, since this material is more durable and has excellent performance characteristics.

Blind area with trays

For this purpose, you need to purchase heat insulator plates and suitable glue for fixing it. After that, a number of preparatory activities should be carried out:

1. Dig a trench around the foundation, digging in the ground.
2. Apply XPS to the depth of freezing of the earth.
3. Clean the foundation from debris and dirt.
4. Apply a special primer in two layers, wait for it to dry and soak into the concrete.
5. Provide waterproofing bituminous mastic.
6. Apply glue to the boards.

Fastening of plates to the outer section of the foundation is allowed 1 minute after applying the adhesive. If the panels have a large area, you need to apply the adhesive in several strips using a comb trowel. If the plates have locks, then a few days later the seams are sealed with mounting foam, and the plates themselves are additionally fastened with dowel nails.

two story mansion

How to insulate the foundation of a wooden house

Many owners of wooden houses believe that to ensure favorable living conditions, it is enough to insulate walls and floors. However, this is not the case, because serious heat losses can occur through a wooden floor - up to 20%. Therefore, thermal insulation of the foundation is mandatory, especially if the house is located in an area with severe weather conditions.

Foundation insulation wooden house outside will allow not only to create favorable conditions indoors, but also to prevent adverse effects on it. For this purpose, expanded polystyrene and its varieties, as well as expanded clay are usually used.

stone finish

Insulation of the foundation PPS or EPPS

Expanded polystyrene has excellent consumer properties, such as a low degree of thermal conductivity and moisture absorption, resistance to the negative effects of weather conditions, affordable cost, ease of installation, etc.

These and other characteristics have made this material one of the most relevant and in high demand among many consumers.

For thermal insulation of only the ground part of the foundation or plinth, a fairly simple installation is required. PPS sheets are simply attached to the surface with glue or special fasteners.

After that, cladding or plastering is performed. At the same time, you should be aware that the installation of insulation does not mean complete waterproofing, so it should be carried out separately to avoid groundwater penetration under the floor.

At the cottage

If there is a basement, it is necessary to insulate not only the ground part of the base, but also that part of it that is underground.

In this case, it is necessary to carry out a complete waterproofing of the walls. For this purpose, a trench is dug around the wooden house, then the foundation is cleared of soil and debris. Further, PPS panels are attached to the surface, after which all this is filled up and rammed.

The insulated base can additionally be finished with brick or other types of cladding that can withstand the adverse effects of weather conditions.

Warming of the foundation with expanded clay

Often wooden house insulated from the outside with expanded clay. However, it has a high moisture content.

To avoid the negative effects of this phenomenon, a trench is dug around the house and a formwork with waterproofing is installed, after which the expanded clay itself is filled up.

blind area

This method is no less effective, but requires special attention and the need to adhere to all installation rules.

DIY insulation video

The video tells in detail how to make the insulation of the base of the house yourself.

The use of insulation in the arrangement of the foundation is a common way to improve the thermal insulation performance of the building and protect the foundation from negative influences. sub-zero temperatures air. Among other heaters, extruded polystyrene foam has gained great popularity. Unlike conventional foam, the material has an increased margin of safety, in addition, the special shape of the plates makes it possible to significantly simplify the installation process.

Let's figure out how to insulate the foundation of the house with foam plastic from the outside with your own hands. The procedure is very similar to thermal insulation of walls. On the side parts of the foundation, which are located above and below the soil surface, special heat-insulating plates are fixed. The use of insulation allows you to reduce the rate of heat exchange between the walls of the foundation and the layers of soil.

Why insulate the foundation

Some owners of private houses refuse the basement insulation procedure, trying to save as much as possible Money. At the same time, experts in the field of construction work insist that thermal insulation of this part of the house is simply necessary, and it is better to fix the insulation on the outside of the structure.

The general scheme of insulation of the foundation with foam

The following arguments are put forward in favor of insulation:

• After insulation, the foundation becomes protected from the negative effects of sub-zero air temperatures. This factor is especially important in places with high humidity. If, when the temperature drops, moisture enters the cracks in concrete, it begins to expand rapidly and eventually breaks and damages the concrete structure;
• The degree of protection of the foundation from temperature fluctuations increases. A concrete structure experiences much fewer compression and expansion cycles, resulting in a building life without overhaul the foundation is significantly increased;
• The insulation becomes an additional barrier to groundwater, which tends to penetrate to the foundation.

How best to insulate the foundation: from the inside or outside

The foundation can be insulated from the inside or outside. Both methods have their advantages and disadvantages.

Internal thermal insulation

To the benefits internal insulation include:

• Improvement of the microclimate in the basement;
• Effective fight against dampness in the room;
• Basement protection against groundwater penetration.

The disadvantages of internal insulation include:

• Such thermal insulation does not protect the foundation from soil freezing;
• Moisture gets into pores easily concrete base and destroys it;
• The dew point moves inward.

Warming from the outside

This insulation method has the following advantages:

• The foundation is reliably protected from freezing;
• The dew point is shifting towards the street;
• The concrete base is protected from any negative influence from the environment;
• Significantly increases the overall life of the premises;
• Some heaters are able to additionally strengthen the foundation;
• When installing a thermal blind area, it is possible to protect not only the foundation from freezing, but also the soil within a radius of about half a meter from the installed insulation.

External insulation will require more time and materials, and this is the only drawback of this method.

It is very important to understand that the external insulation of the foundation provides a reliable guarantee of protection for the whole house, and thermal insulation from the inside will protect only the basement from the cold.

After evaluating all the advantages and disadvantages of the external and internal methods it can be concluded that it is better to give preference to external insulation.

In order for the insulation to fully cope with the tasks assigned to it, it is worth remembering that thermal insulation foundation should be carried out only after all the walls have been insulated. Be sure to process all the joints between the insulation with mounting foam - this will increase the efficiency of the thermal insulation of the room.

By the way, the preference for warming the foundation with inside given only if for some reason it is impossible to install a heater outside.

What is the best way to insulate

When planning the installation of thermal insulation for the foundation, the issue of choosing and purchasing a suitable insulation is initially resolved. The material for insulation of the foundation should be distinguished by the following characteristics:

• To have resistance to deformation against the background of constant pressure from the soil;
• Do not absorb moisture from the ground.

In the modern market, insulation materials are presented in a wide range, and a beginner in the construction industry can get confused in the abundance of offers. It is worth saying that the common insulation " mineral wool» not suitable for thermal insulation of the foundation. Not only is it not durable, but it also absorbs moisture well, as a result of which all its positive performance characteristics are nullified.

Despite the fire resistance and low thermal conductivity, mineral wool has a significant drawback - high hygroscopicity.

At modern construction private houses for the insulation of the foundation are best suited for two materials:

• Polyurethane foam.

Polyurethane foam is a modern insulating material that guarantees thermal, sound and water protection of a concrete structure. The material is sprayed onto the surface using special equipment in several layers. This application technology eliminates the appearance of gaps and seams. The advantages of the material include:

• Ability to apply thermal insulation coating without seams and gaps;
• Excellent adhesive characteristics;
• Low thermal permeability;
• Steam protection;
• Increased reliability;
• Long service life;
• No need to additionally purchase material for steam and water protection of the foundation.

The main and rather significant drawback is that special equipment is required for laying the material, as a result, the process becomes impossible to implement at home. In addition, polyurethane foam has a high cost.

Penoplex, in turn, does not require special skills and special equipment for installation. Among other things, it has the following advantages:

• The cellular structure does not let moisture in, as a result of which the plates do not collapse over time after freezing;
• Increased strength characteristics;
• Ensuring a long service life of the foundation;
• Low cost;
• Long service life of the material;
• Preservation thermal insulation characteristics during the entire period of operation;
• Rodents do not use the material as food, unlike regular foam.

Foam insulation reduces heat loss by 20% and helps the foundation last longer

Penoplex is an improved version of foam. The material passes moisture very easily, and after several cycles of defrosting and freezing, it will simply crumble into segments. We add that a few years ago, expanded clay was also in demand in the construction market as a heater for the foundation. The material is inferior to foam plastic due to the high cost, as well as reduced efficiency in the field of providing thermal insulation.

Calculation of the thickness of the insulation

In addition to the correct choice of insulation, it is necessary to pay attention to the calculation of its optimal thickness. If the penoplex is of insufficient thickness, then this may result in freezing of the foundation and transfer of the dew point inside basement, which will eventually lead to condensation on the walls and an increase in humidity levels.

You should not take too thick material either: the degree of thermal insulation will not increase from this, but the costs will significantly hit the family budget.

Correct thickness calculation insulation material- a guarantee of heat in the house, lack of humidity and minimal financial costs.

Thermal resistance is denoted by the Latin letter R. This value is constant, but for each region the value is different and depends on the general climatic conditions. For example, for the Moscow region it is equal to 3.28 m 2 K / W. For other regions of Russia, the value can be taken from the table:

Region	Thermal resistance, m 2 K / W
Moscow	3,28
Krasnodar	2,44
Sochi	1,79
Rostov-on-Don	2,75
Saint Petersburg	3,23
Krasnoyarsk	4,84
Voronezh	3,12
Irkutsk	4,05
Yakutsk	5,28
Volgograd	2,91
Astrakhan	2,76
Ekaterinburg	3,65
Nizhny Novgorod	3,36
Vladivostok	3,25
Magadan	4,33
Chelyabinsk	3,64
Tver	3,31
Novosibirsk	3,93
Samara	3,33
Permian	3,64
Ufa	3,48
Kazan	3,45
Omsk	3,82

Thermal resistance is calculated by the formula:

R \u003d h 1 / λ 1 + h 2 / λ 2

where h 1 is the thickness of the foundation (in meters), λ 1 is the thermal conductivity of the foundation (for a reinforced concrete foundation λ 1 = 1.69 W / m ° K); h 2 - the thickness of the insulation material (in meters); λ 2 - coefficient of thermal conductivity of the insulation (for foam λ 2 \u003d 0.032 W / m ° K).

Thermal conductivity coefficient of various materials

Therefore, the thickness of the insulation is calculated by the formula:

h 2 \u003d λ 2 (R-h 1 / λ 1)

Consider an example of calculating the thickness thermal insulation material for a private house in St. Petersburg with a reinforced concrete foundation half a meter thick (h 1 \u003d 0.5 m):

h 2 \u003d 0.032 (3.23-0.5 / 1.69) \u003d 0.094 m, that is, 94 mm.

The value must be rounded up to the nearest centimeter. Thus, the thickness of foam for insulating a half-meter reinforced concrete foundation of a house in the Leningrad Region is 10 cm.

Warming technology

Compliance with the sequence of foam insulation will allow even novice builders to cope with the process.

It is desirable to carry out work on the insulation of the foundation at the stage of construction of the future house. So the process is greatly simplified. But what to do if the house was built several years ago and was not initially insulated?

In this state of affairs, the foundation is dug to the ground. Ideally, dig to the depth of the soil, however, if working resources are limited, and it will not be possible to cope with such a volume of work, it is worth digging a trench near the foundation for the length of the insulation used.

The thickness of the trench is determined by adding the thickness of the insulation sheet used, as well as the minimum space required for the work. Making the trench too wide will be inconvenient, especially if you do not plan to involve specialized construction equipment in the process. Too small a trench will complicate the process of work.

If you decide to use special equipment for excavation, it is recommended to be careful not to damage the walls of the foundation.

The bottom of the excavated trench must be covered with sand, the layer of which should not be less than 20 centimeters. Be sure to carefully compact the sand and make a slight slope away from the foundation. The sand will act as additional protection from moisture.

After the foundation is completely dry, it is necessary to start preparing the future surface for laying sheets. We carefully clean the foundation wall and basement from adhering soil, damaged pieces of concrete and other contaminants. Cleaning is most convenient with a brush with stiff synthetic bristles.

After cleaning, it is necessary to level the surface: only a flat wall of concrete will ensure a secure fit of the waterproofing coating.

The alignment of the foundation walls is carried out according to the following principle:

• On a surface concrete walls install beacons, the distance between which should be at least 1 meter from each other. Beacons must be mounted on the entire surface, where insulation will be installed in the future;
• We prepare the solution. To do this, carefully mix 4 parts of sand and 1 part of cement in a container, after which we begin to add water. Make sure that the consistency is not too liquid or dry, otherwise the leveled surface will not be reliable;
• We throw the mixture on the surface from the bottom up;
• We apply the rule to the beacons and with a sharp movement from top to bottom we level the surface, while removing the excess solution;
• After the first layer of the mixture dries a little, you can apply the finish, which will finally level the surface.

To level the walls, it is recommended to use a rule about two meters long, since the work with a grater takes too much time

This method is suitable for more or less even walls. If differences of more than 2.5 centimeters are observed on the surface, a reinforced mesh is additionally used.

Proceed to the next stage of work only after cement mixture will dry completely. On average, the process takes from 7 to 20 days. If a recently poured foundation is insulated, they switch to insulation no earlier than a month after laying.

It is better to isolate the foundation from moisture penetration in two layers with the application of bituminous mastic and waterproofing TechnoNIKOL.

It is recommended to buy ready-made bituminous mastic - it's easier than preparing the solution yourself. If you decide to do it manually, then be sure to add used engine oil to the mixture, which will protect the mastic from cracking when the air temperature drops.

It is most convenient to apply mastic with a roller. The layer thickness must be at least 2 mm. After the bitumen has dried, we proceed to the installation of TechnoNIKOL. Sheets are glued from top to bottom. The back side is melted with a burner, and the joints between the sheets are smeared with mastic. The material fills all small pores and cracks and does not allow moisture to contribute to the peeling off of TechnoNIKOL sheets.

To avoid cracking of the mastic under the influence of temperatures, it is recommended to add used machine oil to the solution at the rate of 5 liters of oil per 12 - 15 kg of bitumen

Penoplex installation

It is most convenient to install foam sheets using an adhesive solution or adhesive foam. Additionally, you can use dowels in the form of umbrellas, but they violate the integrity of the insulation sheet.

Apply glue to the sheet with a notched trowel, then the insulation will lie flat, without gaps between the sheet and the foundation wall.

Experts advise giving preference to glue-foam in cylinders. It not only allows you to simplify and speed up the process, but is also spent more economically.

After pressing against the wall, the adhesive must cover at least 40% of the foam board

If the laying of sheets is carried out in two levels, then it is necessary to observe a checkerboard pattern. In this case, the distance and gaps between the sheets of insulation should be minimal. Gaps can be additionally treated with foam.

Reinforced mesh and finish

To enhance the overall strength of the structure and protect the insulation from external sources it is recommended to use reinforced mesh. The material is used only if the foundation is above the ground and can be damaged in the future.

The grid is laid on foam sheets, and an adhesive solution is laid on top for fixation.

At the next stage, start finishing foundation. You can get by with ordinary plaster, use siding or any other material for exterior decoration.

If desired, the resulting trench can be covered with sand or expanded clay, and the materials will act as an additional layer of insulation.

The backfilling of the trench is not carried out to the end, but a place is left for the formation of a warm blind area. The work is carried out in several stages:

1. At a depth of about 30 cm from the surface of the earth, we fill up a layer of sand 10 cm thick and carefully tamp it down;
2. We spread a waterproofing material at the foundation (an ordinary roofing material is suitable, the joints between which are lubricated with bituminous mastic). The borders should adjoin the foundation on one side and move away from it to a width of about a meter;
3. We lay foam sheets on the waterproofing layer, and treat all joints with glue or foam;
4. Next, a blind area is arranged from concrete mix. It is made necessarily at an angle from the foundation, which allows you to further drain wastewater.

The foundation is the basis of your home, so do not save money and make the insulation quality

Only the maximum observance of all the rules for laying insulation on the foundation will protect the foundation of the house from freezing and subsequent premature destruction. Savings on insulation of the foundation in the future can turn into more serious cash costs.

Having decided to start building a country house, even at the design stage it is worth considering a large number of questions. One of them is the insulation of the house and the choice of insulation.

In winter, with poor thermal insulation, you will have to pay for excessive heating of the house. How to insulate and how to do it, we will figure it out further, and we will try to protect you from mistakes.

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Important points of thermal insulation

First of all, when building a house, it is necessary to decide whether the house will have a basement or not. In the case of a house with a basement that will be used as a living space, it becomes necessary to insulate it to prevent heat from escaping through its walls.

In this case, the total heat loss can reach up to 15% of the heat loss of the entire building. To reduce the cost of insulation work and to avoid errors associated with the installation of insulation, it is necessary to solve many factors at the design stage.

It is worth paying attention to:

• functional purpose of the basement;
• initial Construction Materials used for building walls;
• climatic zone of residence.

Warming methods

To date, there are many options for warming the basement. First of all, the foundation should be divided into 2 parts, one of which (underground) is in constant contact with a humid environment (rain, melt water, dampness).

So that moisture does not damage the insulation and it, in turn, does not lose its thermal characteristics, it is necessary to use a moisture-resistant insulation, for example, penoplex.

The analog of penoplex also has high moisture resistance - ( comparative analysis heaters are given in).

When insulating the basement, two methods are used:

1. External insulation. With this type of insulation, it is preferable to use a material that has zero water absorption. Penoplex has similar properties. This work you can do it yourself, without resorting to the help of specialists. Additionally, you will need to make a good waterproofing of the foundation, for example, from roofing material, or treat the surface with bituminous mastic.

Note: great advantage insulation from the outside is to extend the life of materials by protecting it from atmospheric influences.

2. Internal insulation. The procedure for warming is similar to the steps in the first method. The only difference is that the plinth is clad on the outside. Advantage internal arrangement in that:
   • there is protection from groundwater;
   • the microclimate improves.

   However, there is a drawback: the appearance of condensate between the insulation and the wall.

Preparatory work

Having analyzed the advantages and disadvantages, consider the stages preparatory work with external insulation:

Keep in mind: a more reliable option would be to use a deep penetration waterproofing, such as penetron.

Installation work

Starting the installation of penoplex, we need the following tools:

• plastic dowels;
• sloping corner;
• construction knife;
• hammer;
• jagged;
• trowel (trowel);

It is important: materials and tools should be of high quality.

Work order

Basement insulation is an important and responsible stage of construction. Nevertheless, it is quite possible to cope with this work with your own hands, having previously studied the foam plastic installation technology.

It should be remembered that the thicker the insulation, the more effective the thermal insulation will be. However, it is worthwhile to calculate the heat engineering calculation of the walls in advance in order to find optimal thickness insulation. This will reduce the cost of the material when it is purchased, thereby preventing overspending of the insulation.

See video about how to insulate the basement of the house with penoplex with your own hands:

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