home

Penofol under plywood on a wooden floor. Penofol - a modern universal floor insulation

16.11.2018 Warm floorComments: 0

Floor insulation in a private house with penofol. Floor insulation in a wooden house from below: materials and installation technology

Insulation of the floor of a wooden house with penofol

The performance of work on the insulation of floors and ceilings is provided for in almost every project of a wooden house. This is not surprising, given that 20-25% of heat loss occurs through these building elements. In recent years, building owners have increasingly decided to insulate the floor in a wooden house with penofol. This approach is fully justified, since this heat-insulating material is deservedly considered one of the most effective of those that are presented today on the domestic construction market.

Pros and cons of using penofol

The use of penofol in a wooden house provides a number of serious advantages. The most significant of them are:

excellent parameters of heat and sound insulation;
the presence of a foil layer, which ensures the water resistance of the material;
environmental safety and compliance with any, even the most stringent sanitary and hygienic requirements;
a variety of types of material that differ in the number of foil layers, the application of a self-adhesive composition on one side and a laminated polyethylene coating.
small layer thickness achieved by low thermal conductivity. As a result, penofol in the floor of a wooden house saves usable building space;
simplicity and convenience of working with the material;
the insulation is inedible for rodents and non-flammable - two important pluses, especially relevant for wooden buildings.

The presence of such an impressive list of advantages explains why today floor insulation with penofol is increasingly performed in a wooden house. It is important to note the fact that the material has practically no flaws. Among its disadvantages, only insufficient parameters of strength and rigidity can be distinguished, which significantly reduces the effectiveness of the insulation for outdoor use.

Work performance technology

Today, several different technologies are used to insulate the floor in a wooden house from below with penofol. One of the most popular options is this. First, an expanded clay concrete screed is made. After it dries, penofol is laid. The foil side, as in all other cases, should be directed inside the building, as it serves to reflect heat into the premises of the house.

A prerequisite for the effective use of the material is careful gluing of the joints of individual strips. Also, penofol should go onto the walls by at least 15 cm. After that, logs are laid on the insulation, along which wooden flooring is made. Naturally, all wood structures are impregnated with antiseptic compounds.

It is extremely important to leave a ventilation gap between the foil layer of penofol and the boardwalk. To effectively remove moisture that can accumulate on the insulation, it is necessary to make vents.

Another option for insulation

pilorama-chita.ru

It is possible to calculate a few and not constantly, but it is necessary to strive for this. This fully applies to the insulation of the room. In the conditions of our climate, it is necessary to insulate everything, and the roof, and the floor, and the walls, and the ceiling, otherwise we risk freezing or flying into the chimney with heat costs. We recommend considering a couple of options for floor insulation at various construction stages, including already in the finished house. Technologies just depend on the answers to our questions, so for starters, thanks to its principle, it is necessary to consider the most common option when there is no lower floor in the house floor or basement. In this case, the situation becomes somewhat simpler. For insulation, according to technology, you just need to make a primary screed, which will serve as a subfloor, and lay the insulation on it, using vapor barrier membranes or doing without them at all. But only if the insulation is foam or polystyrene materials, they are not afraid of moisture.

For thermal insulation in the construction procedure, they only put insulation against moisture of various types on the screed, at least rolled roofing material, then they put wooden blocks, after which an insulator is placed between the blocks of wood, which is covered with a vapor barrier so that condensate does not fall on the insulation.

The house has already been built. What to do?

Thermally insulate. Exclusively for special developments. Of course, you can take the difficult and expensive path - to dismantle the entire floor in a wooden house and lay down wooden blocks after again. But such a method is not always possible, since wooden blocks can be part of the supporting structure, and it is not economically reasonable to complicate your life. Consider the simplest variations of insulation.

Here the question is different - how profitable the flooring was saved. If it is in excellent condition, then it is a sin to touch it. Then you can simply insulate the wood floor under the laminated parquet directly along the boards. To do this, use foil penofol. However, this is the case if the floor is strong and without gaps, when there is no need for repairs. If the surface is tired, it creaks and cracks. It has obvious damage, then it is worth combining the insulation with a change of floor covering. Just re-lay the new boards, since the old ones, after the dismantling is completed, may not be able to transfer this operation.

Warming mineral wool, expanded polystyrene and foam plastic

Warming takes place, as a rule, according to one technology, the only difference is that all different versions of basalt wool have high hygroscopic indicators. This annoying property is removed with a vapor barrier layer. It is placed on top of mineral wool, glued at the joints in order to protect the material from getting wet to the maximum.

Expanded polystyrene and penoplex have similar properties, so you can analyze them to insulate the floor at the same level. These materials are good because they do not cake, unlike mineral-based wool, they are not afraid of water, they do not absorb moisture. There are different opinions about rodents, but if we were mice, we would definitely not live in polystyrene foam, but would find something more environmentally friendly.

Similarly, by calculating all the invisible moments and taking into account the points that we talked about, you can do the thermal insulation of the floor with your own hands and make the house warmer and more comfortable.

kvartal-club.com.ua

Floor insulation in a wooden house from below

In order for the house to be pleasant and comfortable, it is not enough to have only a roof and walls. It is necessary to make sure that there is warmth in the house. That is why the issue of floor insulation in the house plays an important role. By insulating the floor, you can not only provide comfort, but also significantly reduce heating costs. After all, up to 20% of heat can be lost through the floor. With the help of effective thermal insulation of the floor, you will be able to maintain the desired favorable temperature in the house. It is better to carry out work on insulation even at the construction stage. They must be taken into account in the design. It is very important to insulate the basement. You can carry out all the work yourself. There is nothing difficult in this. You will learn how to insulate the floor below.

Floor insulation at the time of construction of the house

If the construction of the house has not yet come to an end, then it is advisable to insulate the floors from below. Here, expanded clay backfill will be very popular.

There are two options here:

elimination of the cavity between the beams to the fullest;
elimination of the cavity between the layers of boards.

In the first option, geotextiles are placed directly on the ground. Then, in the subfield, the distance is completely filled up to the top of the beams. Next, a floor of boards is installed on the logs. It is worth noting one caveat that the use of this method makes sense only when the distance to the ground is small.

An example of a floor plan in a wooden house

In the second case, two layers of the floor are made. Backfill is placed between the layers. It is worth making the floor insulation from below from the cold. To do this, the shield from the board is hemmed to the beams. It is fastened with screws or nailed. The boards fit as closely as possible to each other.

Filling is done on top. Logs are mounted on the beams. After that, the flooring is done. Sometimes installers provide floor ventilation. In this case, masses of cold air can freely enter the house through a bulk insulation system. Due to such ventilation, it is possible to protect the floor of the house from mold.

But in this case we get the following situation. If the basement is cold, then cold air will penetrate directly into the house. Fixing this problem is easy. It is enough to put a film of polyethylene or some other airtight material on the insulation.

An example of a basement floor insulation scheme for a house

At the same time, it is important to carry out work in such a way that ventilation is maintained. If you lay a polyethylene coating under the insulation material, then condensation in the form of water vapor will accumulate on it. This will only make the situation much worse.

Bottom floor insulation materials

Mineral wool

Mineral wool is one of the best insulation

Warming in the house or in the country with the help of this material is one of the most common ways. Cotton wool is glass, slag or stone. The great advantage of this material is that it is absolutely non-flammable.

It also has other advantages. These are biological resistance, resistance to fire, high heat and sound insulation characteristics. But this material also has its drawbacks. This is a low mechanical strength. Mineral wool perfectly absorbs moisture, while its thermal insulation properties may be somewhat lost.

So, if you decide to mount such a heater, it is important to pay due attention to steam insulation. This insulation can not be attributed to completely harmless materials.

Mineral wool is produced in the form of a flexible mat or a dense plate. The denser part of the plate is marked with a blue stripe. When mounting, make sure that the marking points upwards. Mineral wool is often used in a wooden house or in a country house. Plates are mounted in one layer.

Izovol, which is made on the basis of mineral fibers, has a low thermal conductivity. Izovol is a non-combustible material. Rockwool - basalt insulation. It has good resistance to external loads. Due to the special design, it practically does not change shape. In addition, it can perfectly level out sounds.

An example of a floor insulation scheme in a wooden house from below

Insulation is placed between the lag. Everything will depend on whether it is possible to hem the shield from the boards to the beams from below. If the subfloor is low, the shield is attached to the beams from above between the joists. If necessary, the lags can be raised. Further execution of the procedure is quite standard.

Styrofoam

Very often, insulation in a private wooden house or in the country is carried out using foam. This material has a huge number of advantages. But he has almost no shortcomings. Styrofoam insulation can guarantee high strength, resistance to fire and various chemicals.

If you decide to carry out insulation in a wooden house, foam insulation will be a very effective option. This material has a unique cell structure, which makes it durable. It has the same disadvantages as mineral wool. It easily absorbs moisture, as a result of which it can quickly lose some properties.

Scheme of floor insulation under reinforced concrete screed

Insulation can be carried out with foam or extruded foam. The latter has a particularly strong structure. The process of foam insulation is the same as that of mineral wool insulation. But there are also some features. In the best case, the width of the insulation and the lag should be the same. After all, the foam will act as a special support for the flooring.

Laying of plates is carried out with minimal gaps. All gaps must be foamed. Vapor barrier is not needed here. Thick plates are mounted among the lag. After they are simply foamed. Hemming of the shield from below is not performed.

To blow out ecowool, you will have to use a compressor. Without him - nothing.

Insulation using industrial equipment

Ecowool is blown with a compressor into the hole between the floor. In this case, the voids are uniformly filled with material. After removing the flooring from above, the ecowool is laid using the wet method. It contains sticky particles.

Don't forget about waterproofing

It is due to them that the layer turns out to be quite rigid. After that, he will not sit down. Vapor barrier is not provided. After all, the material is not afraid of moisture.
With polyurethane foam, it is possible to completely fill the existing space between the beams. In this case, you will get excellent thermal insulation, which will last for many years.

Insulation for small heat leaks

Quite often, in a private house or in a country house, cold penetrates into the room through poorly connected or dried out boards. You can eliminate such gaps in a wooden house only if you decide to completely redo the floor.

Scheme of floor insulation in a wooden house on the second floor

In this case, it is advisable to use a roll insulation from below instead of re-laying. You can insulate the floor in a private house with penofol. This material is a foamed polyethylene, in which the surface is finished with foil.

The surface that reflects the light turns towards the warmer space. Thus, heat leakage is quite effectively prevented.

Table of heat losses that occur in a wooden house

If you decide to insulate the floor with penofol, you will have to re-lay the old floor covering. At the same time, you should not make too thick a substrate from below. Otherwise, the floor will spring too much. Linoleum, on the other hand, can push through furniture legs. If the material thickness of 0.4 cm is not enough, it is better to take a denser material for laying. For example, it can be a cork substrate.

If you do not want to carry out serious repairs in the apartment, you can insulate it with penofol from the underground. Rails can be used for fixation. They are stuffed on top of the insulation.

Insulation in the house from the basement

Thermal insulation of the floor of a private house from the basement has a very important role. With the help of high quality heat insulation, you can not only reduce heat loss, but also protect the house from dampness and destruction in the future.

Table of thermal conductivity of some materials

Many professionals say that basement insulation from below will help solve a large number of problems that can form in a private wooden house. For thermal insulation of the basement, you can use foam, penoizol and other materials. You can use mineral wool to seal the floor from the basement side.

The width of the lag and pieces of insulation when using foam should be the same.

With the help of polystyrene foam, only the basement floors are usually insulated, but also the walls. If your house has a cool floor, then before purchasing a heater, you should think about how to insulate the basement.

Video

You can watch a video on how to properly insulate a wooden floor from below.

fastbuildings.com

How to insulate the floor in a wooden house from below with your own hands?

A wooden house requires thermal insulation, especially for ceiling surfaces and floors. Insulation of wooden floors is a priority; not only the amount of heating costs depends on this, but also the comfort of the people living in it.

In order to start insulating the floor, you need to choose a method of insulation and high-quality material. Consider which heaters are suitable for this process, and how to produce high-quality and inexpensive insulation.

It is impossible to insulate the flooring immediately after construction, since the material has not yet shrunk and can damage the insulation. Insulation is carried out after the building has stood for six months

Material selection

Before you buy an insulating material, you should pay attention to the characteristics of the insulation:

moisture resistant;
fire resistant;
environmentally friendly;
with a long service life;
easy to install;
have good thermal insulation properties;
have a small specific gravity;
low cost.

When insulating wooden buildings, the most important characteristics are the service life and resistance to fire. Consider what kind of floor insulation in a wooden house can be used.

mineral wool

A very good insulation used for thermal insulation of any buildings.

Advantages:

excellent fire resistance. This material does not burn, and prevents the spread of fire;
good performance in thermal conductivity;
acts as a good insulator from extraneous sounds;
vapor tightness. Many builders prefer to use mineral wool in the insulation of wooden structures - it "breathes";
easy to install;
ecologicaly clean.

Manufacturers offer two types of mineral wool: in mats and rolls.

It has a very big drawback - it absorbs moisture, which reduces its insulating properties to almost zero. But this can be avoided by carrying out insulation work in accordance with all the rules. Most private developers use mineral wool, because of its low cost.

Dry screed

Material with excellent performance based on gypsum fiber. It must be carried out after complete shrinkage of the floor in a wooden structure.

Advantages:

good heat insulator;
does not burn;
easy to mount;
it is used with any finishing, floor materials;
good sound insulation performance;
no need to equip a thick layer.

There is a major drawback - the cost. Warming turns out to be expensive, since with one bag of 20 kg, you can insulate 1 square meter of area.

Since the material is made on the basis of gypsum, it is afraid of moisture. Unlike mineral wool, a dry screed does not lose its insulating qualities when wet, but the flooring can be severely damaged.

glass wool

This material has been used to insulate surfaces for a long time, and has established itself as a reliable and environmentally friendly insulator.

Material advantages:

does not burn;
easy to use;
ecologicaly clean;
inexpensive cost.

He has one significant drawback - shrinkage. Glass wool decreases in size by 15 centimeters per meter per year. The result is a break in the integrity of the insulating layer. Like mineral wool, this material is unstable to a humid environment. When wet, all thermal insulation properties are lost.

Styrofoam

Sufficiently demanded insulation among private developers. The ratio of quality and price for this material is optimal.

Styrofoam tolerates large temperature and humidity fluctuations without losing its insulating properties. The material is able to provide high-quality thermal insulation already at a thickness of 10 cm.

The environmental friendliness of this material is confirmed by quality certificates, which is why foam insulation is so in demand.

The main disadvantage is not strong enough. But if you properly equip the heat-insulating layers, then the foam will serve for a long time.

It is also worth noting that the coating does not allow air to pass through, and if vapor barrier is not made, then the arrangement of the floor in a wooden house may be of poor quality.

Penoplex

Many private developers ask the question: how to properly insulate the floor with foam, and what kind of material it is. An improved foam with many benefits.

This insulator has many advantages, for example:

does not burn;
not susceptible to moisture;
tolerate temperature changes;
well isolates sound;
lasting.

Of the shortcomings, only the cost. But the insulation of floors with penoplex is worth it.

Ecowool

Floor insulation with ecowool is the right choice for any developer. This material consists of cellulose fiber, boric acid with the addition of borax. Thanks to the properties of this insulator, it is possible to create an inseparable seamless layer. Perfect for insulating the floor in a wooden house from below.

Expanded clay for insulation

During the construction of houses, wooden floor insulation with expanded clay is often used, which has a lot of advantages:

low price;
ease of arrangement of the expanded clay layer;
environmental friendliness;
lie down evenly and without seams;
not afraid of temperature changes;
the ability to insulate double floors, which is heavily loaded.

Penofol

New foil product based on polystyrene. The good thing is that they can insulate the floor in a wooden house without opening the flooring. The process is not complicated:

Take penofol, and fix it from below to the wooden floor with staples and a stapler.

It is worth remembering that the heat insulator strips should overlap each other by 5 cm. To completely isolate the seams, they must be glued with aluminum tape.

These are very popular and demanded insulators. Consider the better to insulate the floor in a wooden house with your own hands.

Thermal insulation works - technologies

How to insulate a wooden floor? The insulation applied depends on the installation of the floor in the wooden house has been applied. Below are the steps to the most commonly used types of insulation. To get started, you need a floor insulation scheme, it will help you accurately calculate the amount of insulator.

Warming at a short distance to the underground

You will have to completely dismantle the old, wooden floors, which makes the job laborious. And decide how to insulate the floor in a wooden house. The principle of action is as follows:

Dismantle the skirting boards and flooring before insulating the floors in a wooden house. If in the future it is planned to apply the old finish, then it is worth working with special care. When parsing the floor, all boards are numbered to simplify their installation.
Inspect the wood from which the logs are mounted before laying thermal insulation. Old and rotten ones should be replaced.
A support bar is attached to each lag from below.
Preparing material for a wooden floor - draft. The length of the pieces of lumber should be less than a centimeter than the gap in which it will fit.
We assemble the subfloor, there is no need to fasten the boards to the bars.
Install vapor barrier. If the house is in a damp place, then it is better to use a waterproofing material - glassine. The material is laid with an overlap on the walls - 15 cm, the seams are glued with aluminum tape.
Arrange the logs of the finishing floor and lay thermal insulation between them. The better to insulate the floor in a wooden house depends on the developer.
Mount the waterproofing material on top of the insulation.
Fill the laths of the crate with a thickness of 2 cm, for ventilation of the insulation under the finishing coat.
Floors are being installed in a wooden house with numbered boards. If the old boards are in poor condition, then it is worth replacing them.

Ventilation for an insulated floor in a wooden house is very important, as it helps to ventilate the gap between the floor and the insulation.

Insulation of the lower part of the floor with a basement

There will be less work, it is possible to insulate the floor in a wooden house from below from the basement. The procedure for performing insulation:

From the basement side, you need to attach a vapor barrier to the floor.
a small bar or aluminum profile must be attached to the sides of the beams.
Cut the insulation so that it is 2-3 centimeters larger than the gap between the beams. Install a heater.
Screw the crate to the previously screwed profile or bars to support the insulating material.
Close the insulation and slats with vapor barrier material.
Close the insulation with a top coat.

It is much easier to insulate the floor from below than to apply other insulation methods.

For this method of insulation, rigid insulating material is not suitable; it is better to use ecowool or mineral wool.

Regardless of which side you start the insulation from, the order of laying the insulating material does not change.

double floor

This option is well suited for rooms with high ceilings, since such a design can take up to 20 centimeters in height.

Installation instructions:

The plinth and floor covering are being dismantled. If there are rotten elements in the wooden floor, they must be replaced. Fill all cracks.
Install logs, the thickness of the floor insulation should correspond to the thickness of the bars, which are nailed directly onto the old coating in increments of 60 cm;
Check the floor horizon using the building level. For leveling, you can use small spacers under the bar, or comb out prominent areas with a planer.
Install a vapor barrier material with an overlap on the walls by 15-20 centimeters.
Floor insulation installation.
Cover the insulation with foil.
Lay a new floor.

You can insulate the floor with expanded clay, which is simply poured onto the rough coating of a wooden house.

If the building stands on screw piles, then one floor insulation in a wooden house will not be enough. Build a wind shield around the perimeter of the foundation, while leaving ventilation holes to ventilate the subfloor.

In custody

Now you know how to insulate the floor in a private house using various thermal insulation materials. Which insulation to purchase depends on your financial capabilities and the load that will be placed on the flooring. How to insulate a wooden floor is up to you.

heatplota.guru

How to insulate the floor in a wooden house from below?

Useful advice on construction and restoration work is always in demand. They expand knowledge of the methods and sequence of work. Introduce you to materials, their properties and how to use them. All this will help you make the right decision.

What material to insulate the floor?

When using a water-heated floor heating system or an eclectic-powered infrared floor heating system, be prepared for the fact that this will require regular financial investments and permanent residence in the building. So that the floor in the house does not cool, they use mineral wool mats, stone mineral wool slabs, penofol, expanded polystyrene, polystyrene concrete, glass wool, corkboard, ecowool, penoizol, foil rolled, sawdust material, expanded clay and others to insulate its lower part.

Basic rules for insulation

The basis for thermal insulation is the black floor.
Under all types of heaters used, insulating floors from moisture must be laid (moisture comes from the ground and condensation forms).
The same products are used for the outer layer (condensate from the room).
The insulation is laid out with an overlap, in order to maintain its absolute tightness.
The waterproofing material should also be laid on the lower part of the wall adjacent to the floor by at least 10-15 cm.
Hardwood flooring should not fit snugly against the structure. The gap will keep them from deformation, which can be affected by shrinkage of the soil or the house.
Wood materials used for flooring must have a low specific gravity of moisture, be treated with antiseptics and flame retardants and have high strength.
The entire structure, the subfloor with insulation, must be ventilated through the vents (small windows in the foundation, which are closed in winter).

Insulate the floor in a wooden house with mineral wool

The start of work depends on the type of foundation of the house.

Spread the beams (timber) of the floor on the substrate with waterproofing. For this, glued laminated timber 640 x 480 cm is used. These dimensions can be adjusted, depending on the severity of the structure. The beam is treated with protective compounds. Beams should not be in contact with the structure.
A waterproofing material is overlapped on the beam. It is convenient, in this combination with a heater, to use foamed polyethylene.
Lags are laid on it. The step between their rows is from 100 to 120 cm. Their height should not be lower than the insulation layer (it is recommended to use logs of 75 x 100 cm). The step size can be adjusted depending on the material used. With a mat width of 50 centimeters, the step must be of the appropriate size. This is a necessary condition for floor insulation, since the mats must fit snugly against the joists without forming gaps.
Lay a draft floor between them (lags), fixing them to the timber. Edged board (20 mm). Using plywood 10 mm thick, you can place it on a layer of thermal insulation and only then lay the logs.
The next stage of work will be floor insulation. To do this, use two slabs of mineral wool 50 mm each or one 100 mm thick.
Close the insulation with a layer of vapor barrier. A cement screed 5 centimeters thick has the same protection property. You can use a mortar (cement, sand and water) if there are no purchased materials on hand.

Having completed the process of lower floor insulation, you proceed to the flooring of the upper coating. Between it and the vapor barrier layer, it is necessary to leave a gap for ventilation and natural drying of the condensate. It should not harm the floor coverings of the room.

How to insulate the floor with penofol in a wooden house?

The polyethylene foam compound welded onto the foil material has a double effect. Penofol isolates from moisture and retains heat. There is one- and two-sided roll insulation, types A and B, respectively. The top layer reflects the heat coming from the room. The lower part of the cover protects against moisture coming from the ground. For insulation of residential premises, type A is used with a maximum thickness of 5-10 centimeters.

Penofol for floors in the house is recommended to be combined with other heaters, using only its one-sided version (if it is not a sauna or bath). It is laid with foil outward (foamed part to the insulation) and overlapped. When cutting blanks, leave a margin of 10-12 centimeters of rolled insulation. It should lie on the lower base of the wall adjacent to the floor (leave a margin for possible deformation of the building).

Penofol as a concrete base insulation

Start by marking the level for the subsequent leveling of the subfloor. To do this, you will need a level, rope, beacons, nails and a hammer. Start working from the far end. At the level of the device, pull the ropes from the wall to the beacons installed over the entire floor area along the level. It is customary to observe a gap between them (beacons) from 60 to 80 centimeters (it will be easier to control the level when pouring the solution). Fix the rope and use it as a fixed limit for the composition.

Start pouring mortar from the wall opposite the front door. The composition for concrete screed includes sand, cement and water. You can use ready-made mixtures, they are diluted with water before use.

There is a more convenient and faster option for pouring concrete floors. For these works, self-leveling compounds are used. It is enough to dilute them with water to the required consistency and lay them on the floor. They will distribute themselves correctly.

The frozen surface of the leveled floor is covered with an overlapping roll insulation, foil to the screed, superimposed on the lower base of the wall

Insulate the floor with expanded clay in a wooden house

Expanded clay is a natural component. It can be recommended as a floor insulation, but it must be taken into account that the compositions of its mixtures exert a pressure of 200 to 400 kg/m3. If there are no contraindications associated with this factor, then you should not look for the best insulation.

Lay the underlay on the subfloor, using foil material overlapping, with partial placement of the material on the walls of the house (10-15 cm from the floor level).

Before pouring leveling compounds, the floors are prepared by cleaning chips and convex places. Before pouring the mixture, the base is coated (treated) with a primer. The most popular compositions with acrylic and bitumen. They form the basis for the adhesion of the cement and gypsum mixture to the base.

The process of pouring with expanded clay mixtures can be simplified if you make a second black ceiling (it is necessary to maintain a fixed height of the material level). The compressor will ensure the supply of ready-made compositions under pressure, which will increase the tightness of their fit to the boards and to each other.

Video: Floor insulation through the underground

Expanded clay holds heat well, but can absorb moisture. Therefore, it is closed hermetically from above with a layer of vapor barrier.

Conclusion

A warm house can be when its floor has no gaps, is insulated with high-quality materials and using the right technology.

www.ekt-sdvor.com

Floor insulation with penofol - inkmilk.ru

Penofol is an effective heat-insulating material that has low thermal conductivity and reliably protects houses from the cold even when laying a thin layer of material. It is often used for floor insulation. since due to the special properties, penofol increases the resistance to heat transfer.

Scheme of laying penofol with a reflective layer down.

Experts say that floor insulation with penofol is the best option, because thanks to the reflective surface and the large number of closed-type pores, the total heat loss is significantly reduced.

Penofol can be perfectly combined with mineral wool and fiberglass for floor insulation, where it will act as a vapor barrier. The use of this material will be appropriate in those designs that require not only thermal, but also noise protection, but the thickness of the insulator should be minimal. To insulate the floor with penofol, it is not necessary to additionally use hydro- and vapor barrier membranes, since the material can become their replacement.

Penofol classification

Since the production of penofol began, its properties, scope and structure have undergone tremendous changes. Previously, the material looked like a roll of sewn polyethylene foam, one side of which was foiled with aluminum. With the help of this variant of the material, thermal insulation of premises is still performed, since it has high efficiency. In addition to the classic type of penofol, other types of material are produced, which are endowed with a number of useful properties:

Scheme of floor insulation with penofol with double-sided foiling.

With one-sided foiling - type "A". It is used in conjunction with other materials for insulation.
With double-sided foiling - type "B". Offline use is allowed.
Type "C" - one side is covered with special glue and a protective film, and the other side is covered with foil. It is installed by gluing to the surface that requires insulation.
Type "R" and "M" - embossed foam with one foil side.
Type "ALP" - has one-sided foil up to 14 microns, which is laminated with a polyethylene film.
perforated material. It has a special structure that allows air to pass through.

The type of penofol is selected depending on the type of insulation work, i.e. walls, floor, roof.

Back to index

Penofol laying technology

Penofol characteristics table.

Before insulating the floor with insulating material, it is necessary to determine its type and installation technology. It is necessary to lay penofol types "C" and "A" under the finishing floor. The insulation process begins with a concrete screed mixed with expanded clay, or with the placement of foam plastic plates with a thickness of 5 to 10 cm. Then foam foam is spread with an overlap of about 10 cm and all joints are glued with construction tape.

It should be noted that condensation may form on the thermal insulation material, so measures must be taken to prevent this phenomenon. To do this, fill the slats up to 2 cm thick above the foil surface, which will create a ventilated space. If the wooden floor is being insulated, then the role of the rails is played by the logs. It is important to remember that all slats and logs must be impregnated with an antiseptic and drying oil to protect the wood from decay.

If the insulation is carried out using the “warm floor” system, then the penofol is laid with the foil side down on a completely dried screed, and in other cases the material must be placed with the reflective side up. A plastic film is laid over the heat insulator, which will be a vapor barrier. To insulate the floor on the lower floor, located above the basement, type "B" foam should be used.

As a rule, when installing a “warm floor” system, the heating elements must be filled with a screed in order to subsequently obtain a flat surface for laying, for example, a laminate. In such cases, the ALP foam type should be used, since its foil side is laminated with a film, and, as you know, cement is aggressive towards aluminum.

Floor insulation with penofol of this type is performed on top of the primary screed, while the reflective side should be on top. The sheets are laid with a slight bend, about 10 cm, on the walls and they are glued with aluminum tape. Next, heating elements are installed, a reinforcing mesh is laid and the entire floor area is poured with a concrete screed. When the surface is completely dry, it is necessary to trim the free edges of the insulation.

Using penofol for floor insulation is the best solution. With this material, moisture will not penetrate into the room, noise will decrease and it will become much warmer, since the foil surface reflects heat, directing it back into the house.

Penofol is a material made of foamed polyethylene, which simultaneously performs the function of heat and vapor barrier. In addition, the foil layer welded on top of the polyethylene reflects thermal radiation. The material does not have pores - this means that it does not allow air to pass through and, therefore, communicates the properties of a thermos to the insulated structure. Where can it be useful? When warming baths and saunas, which should be a repository of hot and humid air for as long as possible. Also cold floors, for example, a concrete base on the ground floor of the building and a warm floor system device. Let's see how the floors are insulated with penofol in each of these cases.

What happens and how penofol is used

A layer of foamed polyethylene in a foam sheet containing air bubbles, due to which, in fact, insulation occurs, can be a layer from 3 to 10 mm. The foil layer in all modifications of penofol is the same, but can be welded on one side (type "A") or on both sides (type "B"). There is also penofol, which has foil on one side, and an adhesive layer on the other - “self-adhesive” penofol (type “C”). In addition, there is penofol with one layer of foil, which is laminated on top with a layer of polyethylene (ALP type).

Penofol type "A" is usually attached to another insulation (polystyrene, styrodur) with staples or nails. Type "C" can be glued on them or directly on the base. Type "B" is used for stand-alone mounting.

How to lay penofol on a concrete floor

A cold floor for insulation should first be poured with a concrete screed with expanded clay, but it can be replaced by a layer of foam plastic with a thickness of 5 to 10 cm. each side. Joints are glued with aluminum tape.

The moisture from which penofol protects the structure, not being able to pass through it, will settle on it. To prevent this from happening, it is necessary to arrange a space for ventilation with air vents above the foil layer of penofol - holes through which air can freely pass in order to remove this moisture. To do this, slats 1.5-2 cm wide are stuffed onto the penofol from the side of the foil, creating space for air movement. Logs can play the same role if it is decided to lay a wooden floor. Logs and slats need to be impregnated with an antiseptic or drying oil. They should be laid along the entire length of the floor, retreating 1-2 cm from the walls in increments of 35-40 cm. Boards 2-3 cm thick are laid perpendicular to the lags, and a sheet of plywood 12 mm thick is laid on top. You can use plywood 6-8 mm, but lay it in two layers. The finish can be linoleum or laminate.

The device of the "warm floor" system

Penofol (type “A” or “C”) is placed on the base with foil up, heating elements are laid on it, logs are laid between them, on which the floorboard is laid (1st scheme).

If a cement screed is poured over the heating elements (for example, under a tile), an ALP type foam is needed, since the cement mortar is an aggressive environment for aluminum covered with foam (2nd scheme).

In order to isolate the floor from impact noise, foam foam is laid with a margin of 10 cm on each wall. Thus, a "floating floor" system is obtained.

To provide hydro- and vapor barrier, all joints of the canvases are glued with a special aluminum tape.

After laying the heating elements, a reinforcing mesh is laid, after which the floor area is filled with a cement screed. After pouring the solution, the edges of the penofol are trimmed.

This is followed by a rather long period of floor heating and its commissioning.

Insulation of floors with penofol guarantees heat, hydro and noise insulation (reduces impact noise by 20 dB) and ensures uniform heating of the floor surface due to the reflective effect of penofol.

Warm floors in a house or apartment are a guarantee of comfort and, most importantly, the health of all family members. The construction market offers a variety of materials for insulation. One of the most common ways today is to insulate the floor with penofol.

Penofol classification

The material is polyethylene foam. It is produced in rolls with a thickness of 0.3 to 1 cm. The foil is welded in the same layer, regardless of the thickness of the material itself. Penofol type "A" has a foil coating on one side only, type "B" on both sides. Type "C" has a self-adhesive layer, it can be easily attached to any surface. Finally, the "ALP" type has a laminated polyethylene layer.

Fig. 1 Penofol on a concrete coating with an overlap on the walls

Self-adhesive material does not require additional fixation. In other cases, it is fixed with a construction stapler, wide-head nails or special glue.

concrete floor insulation

The first step is to align with an additional screed. You can lay penofol on a concrete floor without a screed, if it is initially fairly even. Then remove all debris and dust from the surface. For such floors, material type "A" or "B" is suitable, up to 10 mm thick. Be sure to glue the joints with special aluminum tape.

The hard coating does not spread on the penofol itself. Firstly, it will not be practical, and secondly, moisture can accumulate on the foil, which will negatively affect any coating. In order not to form dampness, it is recommended to place slats 1.5-2 cm thick or logs on top of the insulation, on which boards are subsequently attached.

Logs should not reach the wall 1-2cm to create ventilation. Before installing wooden structures, they are treated with an antiseptic solution or drying oil. If you insulate the floor with penofol, in this way, you can avoid excessive accumulation of moisture under the main coating.

Fig. 2 Penofol under wooden logs

The main stages of floor insulation using the "pie" method

Conventionally, several stages can be distinguished in the method of using foamed polystyrene:

Cleaning of concrete pavement;
Penofol is placed on the floor, so that it goes a few centimeters onto the walls;
Installation and fixation of wooden bars;
Filling the space between the bars with mineral wool, polystyrene plates or other insulation;
Fixing the second layer of penofol over the bars or logs;
Placement of boards, on top of which 12cm plywood or chipboard is attached.

After that, you can start finishing the floor with linoleum or laminate.

Wooden floor insulation

Usually such an event is held in country houses or cottages. There are two ways to do this: the first is on top of the boards and the second is under the boards.

Warming a wooden floor with penofol on top of the boards is not a complicated process. When laying the foil, we direct it into the room. The joints are glued with a special tape. It is impossible to lay linoleum or laminate on the heat insulator itself.

First place thick plywood or chipboard. It is worth considering that penofol will interfere with the reliable fixation of any wood board or even deform it. Therefore, its thickness should be optimal.

The best way to insulate a wooden floor with styrofoam is to place it under the boards. But for this they must be removed. Usually, insulation is carried out in this way when a change of boards is required.

Fig. 3 Penofol in the "Warm floor" system

The use of expanded polystyrene in the "Warm floor" system

Even in such an independent system, it does not hurt, and sometimes it is simply necessary. Penofol under a warm floor is usually placed to prevent heat loss from below the heating elements or to additionally reflect it.

When using electric heaters, the material is placed directly under the system itself. In this case, type "A" or "C" is perfect.

It is better to use penofol for underfloor heating, where water heating elements will be used, with a laminated coating, as they are often filled with cement screed. Cement is a rather aggressive medium and can adversely affect the material, especially when heated.

Materials used

Going to the building materials store, you can see how wide the range of products in question is. Each heat insulator differs in its size, characteristics and installation method. The choice of this or that material depends on the personal wishes of the owner and the characteristics of the flooring.

Mineral wool

For thermal insulation of a cold wooden floor, mineral wool is often used. The heat insulator is produced in the form of elastic mats and panels. The process of its installation is carried out in one layer.

Mineral wool insulation

The main advantages of the material include:

high noise and heat insulation performance;
long service life;
resistance to fire and high humidity;
acceptable cost;
security;
resistance to mechanical and chemical factors.

polyurethane foam

The material is ideal for thermal insulation of the floor from below. Its peculiarity is that it contains pores that are filled with air and gas. Polyurethane foam has a low weight, but at the same time it perfectly retains thermal energy. Possesses the maximum resistance to formation of a fungus, a mold. Resistant to rot and acids.

Insulation Polyurethane foam for the floor

Polyurethane foam is laid using a special technique, and it is also characterized by excellent adhesion to the surface. With the help of this material, it is possible to insulate the floor of various shapes without forming joints.

This heat insulator for floor insulation from below is considered the most popular. Due to its special structure, a low level of vapor permeability and heat conductivity, resistance to fire is achieved. The material is also distinguished by reliability and resistance to the influence of mechanical and chemical factors.

Insulation foam for the floor

Polyfoam has a long service life, while it retains its heat-insulating ability. Its main disadvantage is that it absorbs a small amount of liquid, which adversely affects certain properties.

You can make the floor warmer in a wooden house with the help of penoplex. It is characterized by light weight and homogeneous polymer composition. Thanks to this, there is no load on the foundation of the house. The heat insulator is made by extrusion method - forcing soft raw materials through the molding recess of special equipment.

Insulation penoplex for the floor

The heat insulator is highly reliable, resistant to low temperatures. It will show its thermal insulation qualities for a long time and will create reliable protection against moisture penetration.

Thermal insulation of a wooden floor can occur using expanded clay. This is a bulk material, which is characterized by a porous structure. A heat insulator is produced by firing slate or clay in a special furnace.

Expanded clay insulation for the floor

Expanded clay is a durable and environmentally friendly material. It is characterized by high rates of sound insulation, resistance to fire and frost. But expanded clay has one minus - after a while it becomes too dense due to its own weight and loses its heat-insulating qualities.

This material for floor insulation is produced in the form of rolls. Received on the basis of polyethylene foam, which is covered with aluminum foil on top. The thickness of the material is 3-10 mm.

Penofol insulation for the floor

But despite this, he perfectly conducts thermal energy and does not need to lay auxiliary vapor barrier. But penofol has a number of disadvantages, including exposure to rust and loss of strength.

This heat insulator today enjoys a wide scope due to its versatility. Isolon is an elastic type polyethylene foam that has a cellular structure, where each cell is of a closed type. It can be obtained in different densities and thicknesses, which once again confirms its versatility.

Floor insulation isolon

How to make insulation

The most effective and reliable way to install a heat insulator from the bottom of the floor is laying along the logs - transverse bars, on which the floor covering will be concentrated.

The process of warming is not difficult if you follow the following procedure:

Fix the bars on the foundation in increments of 1-1.2 m.
Fix chipboard or thick plywood on the boards. For fastening, use self-tapping screws. This stage is important for the installation of the thermal insulation layer.
Lay the selected heat insulator on the surface between the bars. The thickness of the laid layer can be different, so the dimensions of the transverse logs must be taken into account.
Lay a layer of waterproofing on top of the insulation. Most often, polyethylene film is used. This is not always necessary, as there are a number of heaters that have an increased level of resistance to moisture.
At the final stage of installation, the installation of a wooden covering takes place. It can be old or new material.

On the video, floor insulation in a wooden house from below with penofol:

How to insulate from a basement

Insulating the basement in a private house is extremely necessary. Thanks to this, it will be possible not only to reduce heat loss, but also to protect the house from dampness and destruction in the future. For thermal insulation work, you can use penoizol, polystyrene, but mineral wool can be used to seal the floor from the basement. With the help of polystyrene, the floors and walls of the basement are insulated.

The first step is to prepare the surface. And for this, remove all debris and pollution, walk with an antiseptic and a primer. This will protect the surface from decay, and will also make the adhesion of the material to the surface more durable. Mounting a heat insulator is a simple matter that even a beginner can handle. It is necessary to apply glue to the surface of the heat insulator, and then immediately attach it to the ceiling.

On the video - floor insulation in a wooden house from the basement:

Warming the floor from below in a private house is a necessary measure to create a comfortable and warm environment. The main thing in this matter is to choose the right heat-insulating material. And although the choice today is very wide, you need to choose the insulation that will be convenient in terms of installation, suitable for your operating conditions and will become a reliable protection against heat loss.

Now on the market of building materials there are a large number of different insulators in terms of efficiency. One of the modern heat insulators is penofol. This material is great for light thermal insulation throughout the house, it is also possible to insulate the floor with foam.

A special production technology gives this material high thermal insulation properties and other characteristics. An overview of the properties, scope and technology for insulating various surfaces with this material will be discussed in this article.

Overview of penofol properties

Penofol is a material made from polyethylene by foaming with special reagents. This polyethylene foam is applied to a foil base, to which it reliably sticks. The foil base greatly enhances the thermal insulation properties of the material due to the reflection of thermal waves inside the room.

Therefore, penofol belongs to the class of reflective thermal insulation. This foil insulation has the following performance characteristics:

Advice! There are several product classes: A, B and C. Class A insulation has a foil on one side, and the B series material has two. Class C insulation has a foil base on one side, and an adhesive layer on the other, which makes it easier to install in inconvenient areas.

Application area

Penofol has a versatility of application: it is used for insulation and vapor barrier not only for residential premises, but also for industrial facilities. Here is a far from complete list of where this material is used:

Ceiling ceilings.
Wall insulation.
Waterproofing and floor insulation.
Arrangement of warm balconies and loggias.
Thermal insulation of air ducts and technical pipelines.
Application in the automotive industry for thermal insulation of bodies.

As you can see, the list of applications is quite extensive. We will consider where you can use penofol with your own hands - the home area of \u200b\u200bapplication.

The use of penofol

Even for domestic needs, this versatile material is used quite extensively. Let's consider the main directions.

Insulation of wooden floors

Most often, penofol insulates the floors in a wooden house. This process is absolutely simple, you can easily do it yourself, just follow this technology:

It is best to remove the old boards and lay several layers of penofol between the lags. In this case, all layers of material must be laid with a foil base inside the room. Then old boards are laid in place or a sheet of plywood is stuffed.
Another way is that the heat insulator is laid on top of a wooden covering. One layer of insulation is applied, while the laying is done end-to-end, and the seams must be glued with aluminum tape. Then, plywood sheets are laid on the laid heat-insulating layer and screwed to the wooden base with self-tapping screws.

Advice! It is impossible to fix penofol to a wooden base mechanically, for example, with brackets. If there is a need to fix the insulation, it is better to treat it with glue or use an adhesive-based material.

Thermal insulation of concrete floors

As a rule, penofol for warming concrete floors in a house or on a balcony is used in conjunction with other types of heat-insulating materials. The technology of work in this case is as follows:

The use of penofol in the underfloor heating system

It is very common to use penofol when arranging a system of underfloor heating, both in a private house and in an apartment or on a balcony. The use of this reflective material increases the heat transfer of the entire system by 15–20%, which, at the current cost of energy carriers, is a significant savings. Penofol is used when installing underfloor heating using this technology:

After the main insulation has been laid, foil material is mounted on it.
In this case, the general rule is observed: the installation is done end-to-end, the seams are sealed with aluminum tape.
For this option, a one-sided option is usually used. If fixation of the reflective layer is necessary, then penofol with an adhesive base can be used.
Then an electric cable or a water circuit piping system is mounted on the foil.

Advice! You can cover the heating elements of the underfloor heating system not only with boards or plywood, but also fill it with cement screed. The foil base of penofol is resistant to various aggressive operating conditions.

Having studied the properties and got acquainted in more detail with such material as foil foam, it is easy to agree with the opinion of professionals that this material is an excellent addition to existing insulation technologies. In addition, this insulation can be used as an independent heat insulator.

You are very lucky if your neighbor, who lives on the floor below, took care of the insulation of his balcony or loggia. Warm air rising up will warm the balcony slab, and it will not freeze, creating a lot of inconvenience - the inability to go out onto the balcony in the cold season in socks or leave a tub with your favorite clematis for the winter.

Take care of the insulation of the balcony floor, still have to. Floor insulation with penofol is the best option.

Preparatory stage of work

Balcony insulation with isolon (penofol) consists of a series of sequential operations. Any work on arranging the floor begins with its alignment. The principle of operation is standard and does not depend on what material you plan to make it from.

Step one: Closing all the defects of the balcony slab

In the presence of cracks, chips protruding to the surface of the reinforcement, defects are eliminated with building cement mixtures (cement grade 200-400) + building sand in a ratio of 1:4.

It is better not to use sand from a children's sandbox. It may contain cat feces.

And this will give your balcony a specific “ambergris” for many years to come.

It is better to fill the gaps between the wall and the balcony slab with mounting foam. Cut off the rebar protruding to the surface with a “grinder” flush.

Step Two: Waterproofing

If your apartment is located on the 1st or the top floor, it makes sense, at the preparatory stage, to waterproof the balcony (loggia). Its device is simple and consists in gluing a vapor-water-proofing material (Izospan, Megaizol) onto a polymer building adhesive.

Be sure to make allowances of 100-1500 mm. in places of adjunction to the walls and parapet of the balcony (loggia).

Arrangement of a leveling screed

A leveling screed is necessary if the balcony slab has flat defects or a slope in any direction exceeding 1°. If these shortcomings of the builders are not eliminated, the floor may creak or be inconvenient to use. Yes, and it is much more convenient to arrange a crate for flooring a clean floor on a flat surface.

As a leveling mixture, it is best to use ready-made cement mixtures or polymer compositions based on epoxy resins. For fast work, self-levelling, light, quick-drying polymer-based mixtures (Nipline, Skorline, Startoline) are especially good. It is enough to pour a leveling mixture, liquid in consistency, onto a pre-laid vapor barrier, and it will self-level in an absolutely horizontal plane. No comb trowel or needle roller required.

Remember that the balcony slab according to SNiP does not exceed a thickness of 100 mm. Therefore, its strength characteristics do not provide for large loads. The floor leveling layer should not exceed 40 mm. at the lowest points of the balcony slab.

Arrangement of lathing for a clean floor

Since, as a heater, it is planned to use penofol (izolon), which has a metallized aluminum surface, ceramic tiles or thin flooring (linoleum, laminate, parquet) cannot be directly laid on it. Due to the porous structure of the insulation, such a coating will “walk” underfoot and creak.

Therefore, when the screed fully gains technological strength (indicated on the packaging), it is necessary to make a crate.

The best option is to use a wooden block (coniferous) with a section of 40x40 mm.

There are two options for laying the lathing bars - longitudinal (along the length of the balcony) and transverse (along the width of the balcony (loggia). The first option is preferable for regular-shaped balconies, the second for wedge-shaped, rounded, curved, corner balconies.

Be sure to focus on the material from which the clean floor will be laid. If these are panels (chipboard, moisture-resistant drywall 10-12 mm) - it is necessary to take into account the dimensions of the material so that there is always a bar at the joints of the plates. Otherwise, chips may occur during operation.

Bars prepared to size are drilled with a thin ∅ 2.5-3 mm. with a drill, laid out in increments of 400-450 mm. and with a thin long nail inserted into the drilled holes, the drilling points for plastic dowels are marked.

For reliable fastening of the crate, dowels of at least ∅ 10 mm should be used. Be very careful with the markup. Most balcony slabs have voids. If you drill holes for fastening the crate and get into them, the floor will “play”.

The second important condition is the use of a depth stop (limiter) for the puncher. The balcony slab is only 100 mm thick. Therefore, it is not worth drilling deeper than 80 mm. Otherwise, you will find problems with neighbors living on the floor below because of the perforated roof of their balcony (loggia).

Laying a heat insulator (insulation)

When the bars of the crate are fixed, you can lay the insulation (penofol isolon). The distances between the bars of the crate are small 400-4500 mm. Therefore, joints between insulation sheets can be avoided. But, if such a need arises, be sure to glue the joints between the adjoining edges of Izolon (Penofol) with metallized tape.

Any polymer moisture-resistant building mastic is suitable for gluing. Be sure to leave an allowance of 40 mm. so that the edges of the isolon (penofol) lie along the end sides of the wooden bar. Irregularities are cut flush with a retractable construction knife.

Finished floor installation

The easiest and fastest option is to equip a clean floor made of moisture-resistant drywall or chipboard. But this option is difficult for irregularly shaped balconies. You will have to very accurately cut out curved or beveled sheets. Both materials have good thermal insulation characteristics. Therefore, the floor of the loggia or balcony will not freeze through. The best option when you have laid penofol is a floorboard 30-40 mm thick. with groove. In order to make your floor look perfect, in no case do not nail through the boards and do not fasten them with self-tapping screws.

For this, thin construction nails with a hat, 1 mm thick and 25-30 mm long, are used. They are hammered into the groove shelf at an angle of 45-50 ° using a core with a blunt end and a hammer weighing 200-300 grams. The use of such a hammer allows you to control the force of impact and is not tiring when working. The best option is to use a hammer with a wooden handle. The hand does not sweat, does not slip. You can work without the use of construction gloves. Be sure to use a building mallet with a white or clear rubber hammer to fit the planks. In no case do not adjust the boards with a hammer. Dents and chips are formed, which will be very noticeable on a clean floor.

After installing the clean floor covering, it remains to mount the plinth around the perimeter and your balcony will not only be insulated, but will also acquire a new look.

Depending on the grade of the floorboard, you can cover the boards with a tinted clear varnish, or lay linoleum, carpet or artificial grass over the wooden flooring. It all depends on your imagination and the design concept of arranging a balcony (loggia).

Summing up

The use of penofol (isolon) as a heater is a very lightweight option that can be used by residents of warm regions. For Yamalo-Nenets or the Republic of Sakha, floor insulation with Izolon is absolutely not suitable. Izolon (Penofol) is not capable of resisting freezing in forty-degree frosts without arranging electric heating.

Penofol classification

Self-adhesive material does not require additional fixation. In other cases, it is fixed with a construction stapler, wide-head nails or special glue.

concrete floor insulation

The main stages of floor insulation using the "pie" method

Conventionally, several stages can be distinguished in the method of using foamed polystyrene:

Cleaning of concrete pavement;
Penofol is placed on the floor, so that it goes a few centimeters onto the walls;
Installation and fixation of wooden bars;
Filling the space between the bars with mineral wool, polystyrene plates or other insulation;
Fixing the second layer of penofol over the bars or logs;
Placement of boards, on top of which 12cm plywood or chipboard is attached.

After that, you can start finishing the floor with linoleum or laminate.

Wooden floor insulation

Usually such an event is held in country houses or cottages. There are two ways to do this: the first is on top of the boards and the second is under the boards.

First place thick plywood or chipboard. It is worth considering that penofol will interfere with the reliable fixation of any wood board or even deform it. Therefore, its thickness should be optimal.

The use of expanded polystyrene in the "Warm floor" system

When using electric heaters, the material is placed directly under the system itself. In this case, type "A" or "C" is perfect.

A cold floor in a wooden house is a common occurrence. It's all the fault of cold air currents rising from the ground cover. They penetrate through cracks and make the floor surface temperature uncomfortable. Will help floor insulation in a wooden house from below.

This is what floor insulation looks like during the construction phase

It is necessary to carry out technologically correct work on insulation from below. This provides a number of undeniable advantages:

the height of the floor of the room does not change;
there is no need to select the stiffness of the insulation, which can withstand the weight of furniture and equipment;
there is a decrease in the line of condensate settling outside the structure, which prevents the process of decay of the house.

Placement of insulation - an effective measure of protection from the cold

Getting started, you must select the material and. The determining factor will be design features of the building, as well as wishes and financial reserves owner. It is important to take into account the key details of the installation and subsequent operation of the wooden structures from which the house itself is made.

Foundation options:

foundation on piles;
strip foundation;
frame type;
screw piles.

There are also general specific points that are important to consider:

The use of waterproofing. A crucial step. Prevents swollen boards. It is best to use single-sided fiber.

Double layer method. The best way to keep the heat in the house. To prevent the effects of temperature fluctuations and humidity, the wooden parts of the building are pre-treated with special protective equipment.

The stability of the heat-insulating material in the vicinity of wood. The selected heat insulator must be inert with respect to the elements of the floor and foundation.

1-lags, 2- cranial bar, 3 - rough floor, 4 - lutrasil (glassine), 5 - shavings (sawdust), 6 - lime mixture, 7 - finishing floor

How to insulate a wooden floor with foam plastic - step by step instructions

Penoplex- last generation material. This is a foamed polymer obtained by extrusion. It has low thermal conductivity due to its strong structure with a large number of cells.

Penoplex is produced in plates, plate thickness two to 10 centimeters. It looks a lot like styrofoam. Does not increase the weight of the structure.

Does not absorb moisture. Expanded polystyrene is not affected by fungi and decay processes.

It should be noted that the thermal conductivity of foam plastic is 25 times lower than the thermal conductivity of expanded clay concrete. This factor significantly increases the insulating characteristics.

The foam density is 22 t/m

Therefore, the material is mechanically strong and does not require a frame to work with it.

If necessary, this heat-insulating material is allowed to be used when installing a "warm floor" (electric and water type). Penoplex is resistant to fire.

The cost of penoplex is slightly higher than the cost of other heaters, but it easily pays off in the cold season.

We will analyze how to act accurately when carrying out work on insulation.

The most convenient way to arrange foamed polystyrene foam is to alternate with logs, and a floor covering is laid on top of them.

Find out how to do it in our dedicated article.

Prices for thermal insulation materials Penoplex

Thermal insulation materials Penoplex

Video - Floor insulation error in the house

Step 1. We prepare the bases for laying the material.

Lags are installed on finished foundation elements. It is important to observe the distance from the log to the log is 1-1.2 meters. Next, we mount thickened plywood (possibly chipboard sheets), use self-tapping screws.

Preparation for a new floor

Step 2. We lay penoplex.

The insulation has already been laid, it remains to sew up the floor with a finishing board

The height of the insulation layer varies. However, it is worth remembering that it should not be above the laying level of the lag. We must not forget about the layer of waterproofing material. They need to cover the subfloor itself and the logs and directly the insulation layer before laying the flooring. It is also advisable to use wood treatment with solutions of antiseptics and antifungal mixtures.

Step 3. Close up the joints.

We glue the joints of the waterproofing with metallized tape to maintain tightness. Such measures will prevent the absorption of condensate by wooden beams, the reproduction of mold and fungi.

Step 4. Work with the final floor.

We fix the finishing boards over the waterproofing layer.

Find out and also read the step-by-step instructions in a special article on our portal.

How to insulate the floor in a wooden house from below

The choice of insulation for the home can be influenced by the financial resources of the customer or owner, as well as the features of the house (this includes the type of flooring).

In practice, they use well-known heaters:

sawdust;
foam;
expanded clay;
ecowool;
mineral wool;
penofol;
penoplex.

Prices for mineral wool

Thermal insulation materials for the floor

1. Mineral wool.

A common heat-retaining medium in use. Flame retardant lightweight material, has good soundproofing properties.

There is slag, stone, glass wool.

Mineral wool in a roll is convenient for work

2. Expanded clay.

Expanded clay - natural material

Expanded clay prices

Expanded clay

It is made from clay or slate. Expanded clay is fired at elevated temperatures.

Table 1. Expanded clay properties.

3. sawdust.

Small wood shavings, wood industry waste.

Fairly cheap, but good insulating effect, able to create sound insulation. They require special treatment to prevent the appearance of rodents and insects in the sawdust. Next, it is mixed with cement and water and applied as a heater. It also makes sense to use clay. This will increase the thermal insulation properties of sawdust.

Sawdust is cheap and practical for do-it-yourself home insulation

When working with sawdust, it is extremely important to carefully lay the material, obtaining a dense and fairly even insulating layer. If the technology is not followed, the effectiveness of thermal insulation is greatly reduced.

4. Styrofoam.

It's styrofoam. Resistant to moisture, fire, chemical factors. Good thermal insulator. Easy to install and keep in good condition for a long time.

Modern foam looks like this

5. Ecowool.

80% cellulose fibers. Waste paper, waste and scrap paper production are used for manufacturing. It also contains sodium tetraborate, which makes it resistant to fire. Boric acid in ecowool provides protection against bacteria and fungi.

Ecowool applied dry

It is advisable to use ecowool for insulation houses with high humidity, as this prevents the appearance of abundant condensate in the walls and other internal environments of the structure.

There are three ways to apply ecowool. This is dry, wet and sticky ways.

dry application mainly works for country houses;

Cellulose wool is fed using specialized equipment. In the process, dust is created, which is why it is better to use masks, respirators and goggles for the safe installation of insulation.

the wet application method is used when there is a need for further wall cladding;

Water is added to the raw material.

The resulting mixture, when solidified, forms a dense mass.

adhesive method is used for insulation of reinforced concrete or metal structures.

Insulation of a wooden floor with mineral wool

On the market you can find various modifications of insulation. There is mineral wool in ready-made rolls and slabs.

Capable of absorbing moisture, which means that good vapor barrier is extremely important. In the same time, able to protect the wood of surrounding structures from excessive moisture and decay.

Among the necessary attributes are gloves, a mask and goggles. The fine fibers of the material can cause severe itching, reddening of the skin or irritation of the respiratory tract.

Floor insulation with penofol

Penofol looks like a layer cake. Foamed polyethylene is covered with pure aluminum foil. Sold in large rolls. The penofol sheet has a thickness of three to ten millimeters. It perfectly retains heat, performs high-quality sound insulation, and is safe for the environment at home.

Foil penofol easy-to-work material

The effectiveness of penofol is based on reflection of thermal radiation. This is how heat is retained inside the room. All because of high-quality aluminum foil. Here its properties are close to those of precious metals.

I distinguish penofol with two and with one layer of foil. In addition, there is a self-adhesive penofol.

Penofol is exposed to moisture. However, it is not capable of absorbing moisture by itself.

Penofol does not support combustion

The disadvantages of the material include low rigidity, which can create additional difficulties when working with it.

Fixing penofol may also require additional effort. Punching fasteners cannot be used, because. this will degrade the properties. All that remains is a special glue, which will also have to be purchased.

For work with vertical and inclined surfaces, it is advisable to take self-adhesive penofol.

Video - Floor insulation

What happens and how penofol is used

How to lay penofol on a concrete floor

The device of the "warm floor" system

Penofol (type “A” or “C”) is placed on the base with foil up, heating elements are laid on it, logs are laid between them, on which the floorboard is laid (1st scheme).

In order to isolate the floor from impact noise, foam foam is laid with a margin of 10 cm on each wall. Thus, a "floating floor" system is obtained.

To provide hydro- and vapor barrier, all joints of the canvases are glued with a special aluminum tape.

After laying the heating elements, a reinforcing mesh is laid, after which the floor area is filled with a cement screed. After pouring the solution, the edges of the penofol are trimmed.

This is followed by a rather long period of floor heating and its commissioning.

Insulation of floors with penofol guarantees heat, hydro and noise insulation (reduces impact noise by 20 dB) and ensures uniform heating of the floor surface due to the reflective effect of penofol.

What else to read

Compliments in Estonian Russian-Estonian phrasebook: how to explain yourself in an unfamiliar country. Popular phrases and expressions for travelers....

Help Beltelecom on settlements Belarusian mobile operator "Beltelecom", under which it offers services for providing Internet access....

Exactly a month has passed since the disappearance of the schoolboy in Pushcha Alyaksandr Lukashenka's abilities could be useful in solving the disappearance of 10-year-old Maxim Markhaliuk, a resident of...