Well      06/20/2020

Floors in the house on screw piles. Warm floor in a frame house on screw piles, how to make it? Floor insulation in a wooden house on screw

Floor insulation in a frame house on piles is a complex, rather laborious process, which has its own characteristics. This is a mandatory event in buildings where it is planned permanent residence. Floor insulation frame house is carried out simultaneously with its waterproofing, which prevents the penetration of moisture into the building and contributes to the formation comfortable conditions residence. Proper arrangement of the basement - milestone in the whole complex of insulation works, due to which the energy efficiency of the building increases.

The need to insulate the floor of the house on screw piles

Pile-type foundations have become widespread in construction due to their relatively low price, quick installation and good performance on unstable ground types. floor insulation scheme wooden house on screw piles as follows:

  • support frame made of timber;
  • subfloor from boards or OSB treated with a special composition (plywood, fiberboard);
  • windproof layer permeable to steam;
  • thermal insulation coating;
  • hydro and vapor barrier layer;
  • finishing flooring from boards.

On a pile foundation, floors are made by laying the material in the given sequence. Creating a blind area and finishing the basement - these activities complement the entire insulation scheme and increase its effectiveness.

Thermal insulation must be done to avoid the following problems during the further operation of the house:

  • heat loss through the flooring, reducing the energy efficiency of the building, increasing the cost of space heating;
  • formation of condensate inside the structure (between the rough and finishing floor);
  • the development of putrefactive processes, the occurrence of mold, which are the result of increased moisture.

Warm floor in log house, erected on screw metal piles, allows you to create favorable conditions for living inside and extends the life of the entire building.

The choice of thermal insulation material

In order to make a high-quality insulated floor covering in a house on screw piles, it is necessary to choose the right working materials: a heat insulator, a hydro- and vapor barrier, and a windproof coating. In practice, for this purpose, various products. The most suitable thermal insulation materials with their brief description are presented in the table below.

Mineral woolPolyfoam, foam plastic (expanded polystyrene)Expanded clay
has excellent thermal insulation propertieshave good heat-shielding characteristics, reasonable pricethe cheapest option of all
non-flammable, biologically and chemically inert materialthe foam burns, and under the influence of moisture and negative temperatures breaks down, therefore requires increased protection from waterthese are rounded particles made of heat-treated clay
loses performance when wetpenoplex is devoid of the above disadvantagesin their own way thermal insulation properties inferior to the above analogues
has a higher price compared to analoguesextruded polystyrene foam has, in comparison with polystyrene foam, increased strengthdoes not burn

The following types of mineral wool are used as a heater:
  • slag;
  • glass;
  • stone.

This product is distributed in rolls and plates. Due to the increased rigidity, it is recommended to give preference to the latter form of release.

For wind protection and moisture insulation, you can use both different materials and modern products that combine both of these functions at the same time. Vapor permeable membranes are an example of such multifunctional products. Thanks to their use, savings in working time are achieved during the laying of coatings.

As a vapor barrier, a polyethylene film is used, which is covered with a heater.

To prevent the occurrence of putrefactive processes and the formation of fungus, all wooden elements houses on stilts are covered with antiseptics. This treatment also prevents the destruction of wood by insects.

If the floor is insulated in a house with a pile foundation designed for permanent residence, then it is better to use foam or mineral wool as a thermal insulator. Cheaper expanded clay is well suited for giving.

Insulation installation technology

By its structure, the floor wooden structure on a pile foundation, it looks like a false option. Installation takes place in several stages:

  • fix logs on the supports (bearing beams);
  • cranial bars are attached to them on both sides;
  • create flooring from sheet products (plywood, OSB, fiberboard), or boards;
  • a steam-permeable windscreen is laid on top of it;
  • install a heat insulator;
  • a polyethylene film or other waterproofing material is laid out on top of it;
  • laying a clean finish.

The considered technology shows how to insulate the floor in a frame house on stilts, how to protect yourself from dampness and create comfortable living conditions.

The technology of creating a warm floor in housing on stilts is simple, but time-consuming. It is quite possible to do all the work with your own hands without the help of specialists. In addition to gaining skills and knowledge, this will save money.

Basement arrangement

The arrangement of the basement contributes additional insulation floor of the house on screw piles. In this way, blowing is eliminated, and due to the arrangement of the blind area, there is a shift from the construction of the soil freezing zone.

Basement insulation is created in several ways:

  • masonry erection;
  • creating a framework.

The wall under the building (along its entire perimeter) is erected from:

  • foam block (aerated concrete);
  • cinder block;
  • bricks;
  • rubble stone.

The technology consists of the following steps:

  • they dig a shallow trench around the perimeter of the house on stilts;
  • a cut-out reinforcing mesh is laid inside it;
  • make a concrete screed of the required height;
  • when the created foundation is completely dry, then a wall is erected on it from the selected material.

In order for the concrete to dry properly, it does not crack, it is necessary to periodically moisten the base, or cover the pour with a polyethylene film.

Aerated concrete blocks after laying are plastered to protect against moisture.

The frame is created by performing actions in the following sequence:

  • they mount a metal or wooden crate around the structure on piles;
  • thermal insulation, sheathing is fixed on it.

Extruded polystyrene foam boards are often used as insulation. If the height of the plinth is insignificant, then they are limited to further coating it with decorative plaster.

Sheathe the created frame with the following sheet products:

The professional flooring differs in simplicity of installation, durability, durability.

The use of siding is the best option with high base height. Also created cladding has a beautiful appearance.

The waterproofing of the basement is performed with both methods of its construction using roofing material.

The blind area is made on a sand cushion of paving stones, paving slabs, concrete screed.

Building a wall is a more time-consuming and costly option. With a low base height, you can not even pour the foundation for masonry, but build it on a sand cushion. This allows you to save time and money installing the frame, as well as fixing siding or corrugated board on it. During the construction of the plinth, it is necessary to make 2 holes on opposite sides for natural ventilation.

Floor insulation with polystyrene foam is shown in the video below.

The considered methods of thermal insulation will help both to properly insulate the floor and ensure its long-term operation, favorable living conditions inside the house. Depending on the minimum temperatures in the region, it will be necessary to install a floor with a thickness of 20 to 50 cm. Compliance with the technology for carrying out complex work to the maximum will contribute to heat conservation. Their independent implementation will allow not only to save money, but also to be sure of the quality.

Given the design features of a frame house on stilts, the floor must be not only strong, but also light enough so as not to unnecessarily burden the foundation of the house. No less important good thermal insulation this part of the building. That is why it is better to make a floor device in a frame house from wood. This material is environmentally friendly, warm and light. To increase the thermal insulation of the floor of the first floor, a heating system can be provided.

Floor materials

If you are going to do the floor with your own hands, then you first need to choose the right Construction Materials. When choosing the type of wood from which the main load-bearing parts of the constructive floor pie will be made, you should take into account the climatic conditions of the construction region, the intensity of loads on this structural part of the house, your financial capabilities, as well as the features of each room, for example, in the bathroom you will need good floor waterproofing.

When building a house on screw piles, the ground floor frame can be made using the following types of wood:

  1. Needles. This type of wood is relatively inexpensive, durable and strong. It is suitable for construction in small spaces, for example, in a bathroom or a corridor.
  2. Aspen and oak are more expensive types of wood. Their performance indicators of strength, reliability and durability are much higher than those of other breeds. With the help of elements from these types of wood, you can make frame structures in the children's room and bedroom.

When building a floor in a house on screw piles, it is equally important to use well-dried wood. If you build a floor from a damp material, then as it dries, cracks form in the structure. The external condition of wooden elements for building a house is no less important. They should not have spots, cracks or other defects.

Tip: for flooring in a house on piles, it is better to buy wood of the 1st grade with a moisture content not higher than 20%.

To correctly calculate the required volume of material, it is necessary to add 10% to the area of ​​\u200b\u200bthe room. The flooring of the floor of the house on screw piles is best done from two-meter boards. To avoid discrepancies in color and texture, it is worth purchasing products from the same batch. The best flooring for any floor of a frame house is a grooved edged board. She does not require final grinding, which will reduce the time of work and reduce labor costs.

Floor covering materials

When making a floor in a frame wooden house, most often they use as a floor covering:

  • glued parquet board ( inexpensive material with low performance)
  • parquet (more expensive and durable product);
  • solid parquet board (durable coating);
  • board made of solid wood (material with high wear resistance).

Naturally, all of them are not suitable for the floor in the bathroom, kitchen and bathroom. For bathrooms and bathrooms, it is better to use ceramic tiles. The main thing in the floor design of the second floor is to provide good waterproofing in places with high humidity.

Bearing structures of the floor of a frame house on piles

The device of the floor in the frame house can be started after construction pile foundation and tying. It is better to make it from a bar, an I-beam or a channel. We will use for strapping wooden beams, to which we attach the lags. The span length of the strapping beams should be no more than 3 m. If the span is greater than this value, then additional pile supports must be used. For beams, you can take a beam with a section of 100X100 mm from conifers wood.

Before laying the strapping, it is imperative to waterproof the base with penofol, roofing felt or plastic film.

Before laying the strapping, it is imperative to waterproof the base with penofol or roofing felt

After installing the beams, you can proceed to laying the log. The pitch of these elements is 500 mm. The construction of the floor in a house on piles is carried out using beams (lag) with a section of 100x250 mm for the first floor and 70x200 mm for the second floor. If the overlapped spans are small, for example, in the bathroom, then the cross section of the beams can be reduced to 50x150 mm. In some cases, a lag step of 40 cm is used to increase the strength of the structure. For more information on how to mount the floor frame, see the video at the end of the article.

Before laying the lag on the harness, you need to make a markup equal to their step. Further, in the strapping beam, recesses are sawn along the width of the lag. After laying in the grooves of the strapping, the logs are fixed with dowels, screws, nails or self-tapping screws.

Important: all wooden load-bearing floor structures must be treated with antiseptics and fire retardants to protect against rotting and burning.

From below, boards of 30x30 mm must be attached to the lags. To increase the strength of the floor structure, sometimes during construction, the logs are interconnected by transverse jumpers with a step of 150 cm. But this is not necessary. Such reinforcement of the structure is recommended to be done if a heated concrete floor is to be performed.

As for the floor frame of the second floor, floor beams will be used here, not logs. Their step is taken equal to 500 mm. The flooring will be laid directly on the beams.

First floor floor insulation

If you decide to build a house on screw piles with your own hands, then Special attention you need to give insulation to the floor of the first floor. The constructive wooden floor cake on the second floor does not require such thorough thermal insulation.

As a rule, the construction of houses on piles is carried out using beam filing. To do this, on the slats attached to the bottom of the lags, we lay OSB boards or plywood. The sectional design will resemble the letter W.

Scheme of a wooden floor pie on logs with insulation

Now you can proceed to the device of hydro and vapor barrier. To do this, we do the following:

  1. We spread a waterproofing film over the lag so that it sags into the gaps between the lags. You can use membrane waterproofing or a regular film.
  2. We put it in the gaps between the lags (on top of the film) thermal insulation material. Suitable for these purposes mineral wool. If you want to insulate your house on stilts well, then it is better to use basalt wool.
  3. The waterproofing film on the logs must be fixed with a stapler.
  4. The constructive cake of the first floor floor in a stilt house must include a vapor barrier. If you are building with your own hands, then do not forget that the vapor barrier material is laid with an overlap of 150 mm. Joints must be glued.

The above method is used to build the floor of the first floor in any room, be it a bathroom, kitchen or living room. As for the constructive cake of the floor of the second floor, it can be done without heat and waterproofing material. But in the bathroom and other places with wet processes, it is worth laying a waterproofing layer in the floor structure. In the video below, you can learn in more detail about the device of the floor of the house on stilts with your own hands.

Floor covering

The next layer of the constructive cake is made with a board 3 cm thick. When laying the boards with your own hands, follow a step of 40-50 cm. Such a crate along the logs will allow you to get a ventilation gap. You can fasten the boards to the lags with self-tapping screws.

  1. On the crate of the boards we perform the laying of the subfloor. It can be grooved or regular board. We fasten it to the crate with self-tapping screws.
  2. On the boards with your own hands, you can lay the acquired flooring.

Since tiles will be the front layer of the floor in the bathroom and bathroom, it is better to lay plywood or OSB on the rough boards to level the surface. At the same time, additional waterproofing must be laid in the constructive cake in such rooms, which is laid on plywood.

Warm floor frame house

With your own hands, you can make a warm floor in a house on stilts. This is not shown in the video below, but the process is simple and takes place in the following sequence:

  1. A constructive underfloor heating cake includes the same carrier wooden frame, as for the floor without heating, with the only difference that the plywood sheets are not laid on the filing boards, but on the cranial bars attached to the logs with self-tapping screws on the sides. You can use a cranial bar with a section of 30x30 mm and fasten in increments of 15-20 cm.
  2. After laying the plywood on the bars and performing waterproofing, we lay polystyrene foam in the gap between the lags. Top surface polystyrene boards should be on the same level as the top of the lag.
  3. Next, you need to lay a layer of vapor barrier film, bringing it to the walls above the expected level of the finished floor.
  4. We lay a reinforcing mesh on top of the film and fill it with a thin layer of cement mortar.
  5. Then we lay out the heating mats of the underfloor heating system on the reflective layer of foil isol. We carry out a concrete screed.
  6. We do flooring installation. If the floor is done in the bathroom or in the kitchen, then you can use tiles.

Given the design features of a frame house on stilts, the floor must be not only strong, but also light enough so as not to unnecessarily burden the foundation of the house. Equally important is the good thermal insulation of this part of the structure. That is why it is better to make a floor device in a frame house from wood. This material is environmentally friendly, warm and light. To increase the thermal insulation of the floor of the first floor, a heating system can be provided.

Floor materials


If you are going to do the floor with your own hands, then you first need to choose the right building materials. When choosing the type of wood from which the main load-bearing parts of the constructive floor pie will be made, you should take into account the climatic conditions of the construction region, the intensity of loads on this structural part of the house, your financial capabilities, as well as the features of each room, for example, in the bathroom you will need good floor waterproofing.

When building a house on screw piles, the ground floor frame can be made using the following types of wood:

  1. Needles. This type of wood is relatively inexpensive, durable and strong. It is suitable for construction in small spaces, for example, in a bathroom or a corridor.
  2. Aspen and oak are more expensive types of wood. Their performance indicators of strength, reliability and durability are much higher than those of other breeds. With the help of elements from these types of wood, you can make frame structures in the children's room and bedroom.

When building a floor in a house on screw piles, it is equally important to use well-dried wood. If you build a floor from a damp material, then as it dries, cracks form in the structure. The external condition of wooden elements for building a house is no less important. They should not have spots, cracks or other defects.

Tip: for flooring in a house on piles, it is better to buy wood of the 1st grade with a moisture content not higher than 20%.

To correctly calculate the required volume of material, it is necessary to add 10% to the area of ​​\u200b\u200bthe room. The flooring of the floor of the house on screw piles is best done from two-meter boards. To avoid discrepancies in color and texture, it is worth purchasing products from the same batch. The best flooring for any floor of a frame house is a grooved edged board. It does not require finishing grinding, which will reduce the time of work and reduce labor costs.

Floor covering materials


When making a floor in a frame wooden house, most often they use as a floor covering:

  • glued parquet board (inexpensive material with low performance characteristics);
  • parquet (more expensive and durable product);
  • solid parquet board (durable coating);
  • board made of solid wood (material with high wear resistance).

Naturally, all of them are not suitable for the floor in the bathroom, kitchen and bathroom. For bathrooms and bathrooms, it is better to use ceramic tiles. The main thing in the design of the floor of the second floor is to provide good waterproofing in places with high humidity.

Bearing structures of the floor of a frame house on piles

The device of the floor in the frame house can be started after the construction of the pile foundation and the strapping. It is better to make it from a bar, an I-beam or a channel. We will use wooden beams for strapping, to which we will attach logs. The span length of the strapping beams should be no more than 3 m. If the span is greater than this value, then additional pile supports must be used. For beams, you can take a beam with a section of 100X100 mm from coniferous wood.

Before laying the strapping, it is imperative to waterproof the base with penofol, roofing felt or plastic film.


After installing the beams, you can proceed to laying the log. The pitch of these elements is 500 mm. The construction of the floor in a house on piles is carried out using beams (lag) with a section of 100x250 mm for the first floor and 70x200 mm for the second floor. If the overlapped spans are small, for example, in the bathroom, then the cross section of the beams can be reduced to 50x150 mm. In some cases, a lag step of 40 cm is used to increase the strength of the structure. For more information on how to mount the floor frame, see the video at the end of the article.

Before laying the lag on the harness, you need to make a markup equal to their step. Further, in the strapping beam, recesses are sawn along the width of the lag. After laying in the grooves of the strapping, the logs are fixed with dowels, screws, nails or self-tapping screws.

Important: all wooden load-bearing floor structures must be treated with antiseptics and fire retardants to protect against rotting and burning.

From below, boards of 30x30 mm must be attached to the lags. To increase the strength of the floor structure, sometimes during construction, the logs are interconnected by transverse jumpers with a step of 150 cm. But this is not necessary. Such reinforcement of the structure is recommended to be done if a heated concrete floor is to be performed.

As for the floor frame of the second floor, floor beams will be used here, not logs. Their step is taken equal to 500 mm. The flooring will be laid directly on the beams.

First floor floor insulation

If you decide to build a house on screw piles with your own hands, then special attention should be paid to the insulation of the floor of the first floor. The constructive wooden floor cake on the second floor does not require such thorough thermal insulation.

As a rule, the construction of houses on piles is carried out using beam filing. To do this, we lay OSB boards or plywood along the rails attached to the bottom of the joists. The sectional design will resemble the letter W.


Now you can proceed to the device of hydro and vapor barrier. To do this, we do the following:

  1. We spread a waterproofing film over the lag so that it sags into the gaps between the lags. You can use membrane waterproofing or a regular film.
  2. We lay heat-insulating material in the gaps between the lags (on top of the film). Mineral wool is suitable for these purposes. If you want to insulate your house on stilts well, then it is better to use basalt wool.
  3. The waterproofing film on the logs must be fixed with a stapler.
  4. The constructive cake of the first floor floor in a stilt house must include a vapor barrier. If you are building with your own hands, then do not forget that the vapor barrier material is laid with an overlap of 150 mm. Joints must be glued.

The above method is used to build the floor of the first floor in any room, be it a bathroom, kitchen or living room. As for the constructive cake of the floor of the second floor, it can be done without heat and waterproofing material. But in the bathroom and other places with wet processes, it is worth laying a waterproofing layer in the floor structure. In the video below, you can learn in more detail about the device of the floor of the house on stilts with your own hands.

Floor covering


The next layer of the constructive cake is made with a board 3 cm thick. When laying the boards with your own hands, follow a step of 40-50 cm. Such a crate along the logs will allow you to get a ventilation gap. You can fasten the boards to the lags with self-tapping screws.

  1. On the crate of the boards we perform the laying of the subfloor. It can be a grooved or regular board. We fasten it to the crate with self-tapping screws.
  2. On the boards with your own hands, you can lay the acquired flooring.

Since tiles will be the front layer of the floor in the bathroom and bathroom, it is better to lay plywood or OSB on the rough boards to level the surface. At the same time, additional waterproofing must be laid in the constructive cake in such rooms, which is laid on plywood.

Warm floor frame house

With your own hands, you can make a warm floor in a house on stilts. This is not shown in the video below, but the process is simple and takes place in the following sequence:

  1. A constructive floor pie includes the same load-bearing wooden frame as for a floor without heating, with the only difference being that the plywood sheets are not laid on the filing boards, but on cranial bars attached to the logs with self-tapping screws on the sides. You can use a cranial bar with a section of 30x30 mm and fasten in increments of 15-20 cm.
  2. After laying the plywood on the bars and performing waterproofing, we lay polystyrene foam in the gap between the lags. The upper surface of the polystyrene boards should be flush with the top of the joist.
  3. Next, you need to lay a layer of vapor barrier film, bringing it to the walls above the expected level of the finished floor.
  4. We lay a reinforcing mesh on top of the film and fill it with a thin layer of cement mortar.
  5. Then we lay out the heating mats of the underfloor heating system on the reflective layer of foil isol. We carry out a concrete screed.
  6. We do flooring installation. If the floor is done in the bathroom or in the kitchen, then you can use tiles.

In houses with screw piles, special requirements are placed on floor laying technology due to design features buildings. In frame houses, the floor should be part of the load-bearing structure. Floors in a frame house on piles are more exposed to climatic influences, so the requirements for materials, flooring technology and insulation methods are fundamentally different than in buildings with standard types foundation. This material is about how to properly lay on piles so as not to disturb key parameters buildings and achieve comfortable living conditions for many years.

On screw piles

Building in most precedents is a forced necessity, rather than an image or aesthetic decision. Houses of this type are built in places where the soil has a low density or a high level. ground water. Also, similar buildings are found in coastal areas, where in the spring there is a threat of flooding of the dwelling.

Building on the slope of a ravine.

For the construction, you need to screw piles over the entire area of ​​\u200b\u200bthe future frame house. The number of piles, their deepening are individually prescribed in the project documentation. The upper part of the pile foundation is combined with bottom strapping from a bar 150 by 150 mm, or 200 by 200 mm. The beam of the lower strapping of the frame house evenly distributes the load on the piles. Thus, the laying of the floors of the frame house is carried out directly on the timber.

Advantages of a pile foundation

Such a technological solution has a number of advantages:

  • minimum level of draft;
  • the ability to use on any type of soil;
  • quick installation of the foundation;
  • lack of a large number of earthworks;
  • high level of structural stability;
  • slight susceptibility to aggressive environmental factors.

An important point is that with the help of a foundation on screw piles, it is possible to build frame houses in areas with a significant difference in height: on cliffs, slopes of lowlands or ravines, artificial embankments.

On a note

TO weaknesses of the described technological solution can be attributed to the inability to equip basement and difficult floor insulation in a frame house on stilts.

Floor in a building on screw piles

Before covering the horizontal floor of the ground floor, you need to correctly select the type of wood to minimize heat loss, since the floor in a frame house on screw piles is not protected from the external environment like the floor in an ordinary house. Therefore, varieties of wood are required that will ensure the tightest fit of the floorboards to each other.

In order to lay the floor of a frame house on screw piles, it is recommended to use conifers, which combine high strength, durability and reasonable price. For wealthy homeowners, it would be preferable to choose oak or aspen, which are many times superior coniferous varieties by many characteristics.


Floor insulation on the first floor.

The right floor in a frame house will allow you to use any type of flooring of natural origin, be it parquet, parquet board or processed solid wood board. You also need to keep in mind that you will have to use ceramics as a floor covering in order to tile the bathroom. The tree must tolerate the effects of water-repellent impregnations well.

Ground floor floor

The horizontal floors of the first floor are most susceptible to heat loss, therefore, in this case, insulation is required between the main floor surface and the floor covering. Thus, the thickness of the frame house floor on the first floor will be much greater than on the second. Additionally, it is required to nail sheets of plywood or sheets of isoplat to the logs from the outside.

The counter rails on which the flooring rests must be located directly on top of the log above the insulation. The floor of the first floor in a frame house requires additional protection from the accumulation of moisture and its evaporation. You need to think about waterproofing at the initial stage of laying the floor, even before installing the floor covering.

Layers of insulating material must overlap. The width of the overlap must be at least ten centimeters. The arrangement of floors in a frame house on piles resembles a kind of pie, the “stuffing” of which is a subfloor, wind protection, thermal insulation layers, vapor barrier, and flooring.

Requirements for the floor of the second floor

What floor is used in frame houses on the second floor? The main requirement for the floors of the second floor is that they must bear the minimum load on the building, since it is not recommended to build frame houses more than two stories high. The floors of the second floor do not give off heat and are less demanding on the type of flooring. The main requirement for floors of this type is lightness of construction and good sound insulation.


Sectional view of the floor of the second floor.

On the upper floors of a frame house, it is unacceptable to use a thick layer insulating materials. For less load on the floor, you can make more rooms on the ground floor. Spacers and partitions will become part of the power structure of the house, thereby unloading the floor of the second floor of the frame house.

Floor insulation

It is necessary to pay close attention to the types of insulation, so wooden floors in a frame house not only actively give off heat to the external environment in the absence of insulation, but can also collapse if the material of the insulating layer is selected incorrectly.

The main types of insulation

  • Mineral wool- this type of insulation has excellent insulating parameters. In addition, mineral wool does not burn, does not decompose, does not accumulate toxic substances during operation. However, mineral wool loses its insulating properties if it comes into contact with water, so the construction of a frame house floor should be done with a minimum of liquids. In this case it is forbidden to process floorboard water-based enamel.
  • Frame house with water floors- this option of insulation requires significant technological competencies from builders. It is required to lay the coolant supply lines between the floor and the floor covering. circulating hot water will heat the coating to the desired temperature. In order for this system to work without failures, a boiler with ACS and thermostats must be installed in the house. This type of insulation is recommended for houses where people live all year round;
  • Electric floor heating– in a frame house, thermal elements are installed between the floor and the floor covering, which the user can activate at will. In this case, the floor covering should not be combustible.

It implies variability, which is limited by the financial capabilities of the homeowner and the operating conditions of the dwelling.

Floor installation work

Installation algorithm:

  1. Log installation.
  2. The adjunction of bars between the lags to strengthen the structure.
  3. Laying a subfloor from a board or plywood.
  4. Flooring between the lags of the vapor barrier membrane.
  5. Insulation lining.
  6. The insulation must be covered with a vapor barrier film.
  7. Installation of the floor in a frame house.

Installers must monitor the correct sequence of laying the floor cake and the tightness of the adjoining boards.

The arrangement of a recreation area on the shore of a reservoir or on a slope assumes that the floor in the bath on screw piles will be mounted taking into account the characteristics of alluvial or sedimentary soil. It is these rocks that are part of the soil on the banks of a river or pond, slopes, hills.

The foundation for a bath on screw piles is suitable for location on a slope, so it is possible to adjust the height of the pile

Benefits of foundation on screw piles

The device of the floor in the bath on screw piles is much easier to make than on a massive foundation. The advantages of such a design:

  • the foundation can be assembled very quickly with your own hands;
  • screw piles significantly compact the soil, ensuring the stability of the entire structure;
  • the foundation is easy to repair if necessary;
  • installation of screw piles is easy to make using modern appliances and fixtures;
  • you can mount the foundation in any weather;
  • screw piles provide effective automatic ventilation underground space baths;
  • the service life and reliability of the pile foundation are large enough;
  • a properly installed floor will protect the bath walls on screw piles from absorbing sedimentary and melt water from the soil;
  • a screw foundation can be built on unstable soil that swells and swells during the season of heavy rainfall.

The foundation for a bath on piles can be installed even in winter time
Screw pile foundation is installed very quickly

The advantages of the pile foundation make its installation fast, and its operation reliable, uncomplicated and convenient. The main thing is to first study the properties of the soil in the area selected for the bath, correctly carry out all the calculations and perform necessary work in strict accordance with the instructions.


Screw piles must be selected depending on the type of soil

Screw piles are installed for everyone bearing walls and elements

What is the bathroom floor made of?

The floor in the bath on screw piles can be made of different materials. Concrete screed and softwood are mainly used. The arrangement of a concrete floor will require significant material costs. However, such a floor is resistant to constant moisture. Therefore, the concrete floor in the bath will last for more than a dozen years. Wood is a material of lower cost. However, under the influence of moisture, the wooden floor quickly collapses. Antiseptic treatment will significantly slow down this process. But after 7-10 years, the wooden floor will need to be replaced.



The concrete floor in the bath is the most resistant to moisture.

The advantages of a wooden floor are not only in the cheapness of the material. It is possible, if necessary, to replace damaged elements without changing the coating completely. If you regularly re-treat wooden components with an antiseptic, you can almost double the life of such a floor. The best option is when indoors high humidity- a steam room and a washing room, a concrete screed is being made. In the locker room and rest room, you can make a wooden floor, because the humidity level here is much lower.


Preparatory work

So, the foundation is mounted and the walls are erected. Now we make the floor in the bath on screw piles. You need to thoroughly prepare for this work, study the technology, purchase everything you need, invite assistants.

For work you will need the following materials:

  • grooved board;
  • timber;
  • fixing material- nails, etc.;
  • cement;
  • coarse sand;
  • expanded clay and / or other bulk materials;
  • roll waterproofing;
  • antiseptic composition;
  • mineral wool or other insulation.

From tools and devices for work you will need:

  • construction mixer;
  • tank for mixing the solution;
  • wood saw;
  • grinder saw;
  • construction knife;
  • hammer;
  • gloves, work clothes, rags.

Specify the list necessary tools and materials is possible after it is determined from what material and in what way the floor in the bath will be mounted on screw piles.

Floor insulation: general rules

Before starting installation and floor insulation, it is necessary to carry out antiseptic treatment of all wooden components of the finished structure. A special composition for this can be purchased at a hardware store. The antiseptic will protect the wood from the penetration of harmful microorganisms that can destroy it.


The depth of the floor insulation depends on the premises of the bath

If a bath on screw piles will be used in winter, floor insulation begins with laying insulation between the supporting elements of the building. Most often, mineral wool (layer thickness 25 cm) or foam plastic (layer thickness 15 cm) is used for this.


If the thickness of the beams is insufficient for laying the insulation, additional bars are attached to them perpendicularly. Waterproofing is pre-installed. On top of it, between the beams, the lower layer of insulation is laid out. Upper layer placed between additional bars. Next, another layer of waterproofing is laid, on top of which the finishing floor is mounted. The insulated layer in the bath on screw piles will extend the service life of the structure and significantly increase comfort in the bath.


Plinth installation

Effective insulation the floor in the bath on screw piles is done using a plinth, which is mounted around the pile-screw foundation. The plinth reliably closes the free space under the bath floor from the penetration of cold air and significantly improves the appearance of the finished building.


The empty space of the plinth is covered with some kind of panels

The main materials for the base are heat-insulating boards and decorative panels. An additional layer of heat insulator is laid between them. Usually foam, polystyrene and similar materials are used for this. Sealing the joints between the panels after assembling the base is done using polyurethane foam.


To reduce heat loss, the basement is insulated under the bath
You can insulate the basement of the bath with the help of penoplex

Spill floor device

The best solution is the pouring floor in the bath on screw piles. In the cold season, it is necessary to carry out mandatory insulation of the entire structure.

Gets on the floor in the bath a large number of water, so it is necessary to increase its moisture resistance and problem-free disposal of used water. To do this, it is necessary to equip a special waste ladder. Through it, water will pass into the sewer pipeline or into the drainage system.


Installation of the pouring floor begins to be carried out by laying logs on the grillage. They are placed strictly horizontally without tilt. Attached to the logs with nails edged boards from coniferous wood. Between them leave gaps with a width of 7 mm or more. Even if the wood swells, the gaps between separate elements still be preserved. Used water will freely pass through them.

To protect the underground from the accumulation of water, it is necessary to mount a concrete screed in it in the form of a cone with an inclination towards the sewer or drainage system.

Advice! To avoid the appearance bad smell and / or harmful microorganisms, the concrete structure must be regularly washed, cleaned and treated with special compounds.


In order for nothing to rot and moisture to accumulate, it is necessary to install a concrete bowl with a drain in the bath

Dry wooden floor in the bath

The dry floor is laid from boards in 2 layers. First, the subfloor is installed. A waterproofing layer is placed on top of the boards. Then the heater is laid. On top of it - another 1 layer of waterproofing. Finally, a clean floor covering is laid. For this, a grooved board made of durable softwood is used. Individual floorboards must be laid close to each other without gaps or gaps. When laying a finished floor, a slope to 1 of the corners of the room is required. A hole is made here, under which the siphon is attached. This will help to easily remove used water during the operation of the bath.

Before pouring the concrete floor, it is necessary to carry out preliminary work in the bath on a screw foundation:

  • laying of pipes for water supply and sewerage;
  • installation of a ladder on which it will be laid fine finish gender;
  • formation under the base of the bath building of a pillow made of bulk material;
  • laying roll waterproofing by departments of the foundation;
  • insulation installation.

Nuance! It is better to pour a pillow for forming a floor cake from bulk material of different fractions, which must first be completely dried.

concrete floor insulation

The concrete floor in the steam bath on screw piles begins to be insulated when the screed sets and hardens. As a heater is usually used:

  • expanded polystyrene extruded;
  • expanded clay;
  • perlite;
  • mineral wool.

Heaters for the bath floor: perlite, expanded clay, expanded polystyrene, mineral wool

Before laying the insulating layer, it is necessary to completely clean the surface of the concrete floor from foreign objects, dust, debris, etc. Then a rolled waterproofing layer is laid. Fractional insulation is applied as part of a special mixture. After it dries, a cement screed is poured on top.

Tiled insulation requires sealing the joints between the panels after laying. This is usually done with mounting foam. After it dries, the 2nd layer of a rolled hydroisolator is applied. To evenly distribute the load on the floor in washing bath on screw piles, in a steam room or in another room is laid reinforcing mesh.


It is possible to insulate the pouring floor in the bath with the help of expanded clay, it is necessary to lay it before the concrete screed

Floor tiling

On top of the wooden floor in the bath, you can lay ceramic tiles. At the same time, fiberboard, DSP or plywood is used for the rough coating instead of the board.


In the washing department, you can lay tiles on the floor in the bath

On top of the laid sheeting is placed ceramic tile. This is done in the usual way. Under the tiles, you can lay a system warm floor in a bath on screw piles. You can use the hydraulic or electric infrared version.


In the locker room you can lay a warm floor in the bath

Preventive measures

A bath on screw piles is distinguished by a high level of moisture; special preventive measures. During the construction process, all used structural elements must be covered in several layers with a special antiseptic composition.


In order for the floor to not rot longer, it is necessary to cover it with an antiseptic from the fungus

High-quality waterproofing should also be used without fail. It could be ruberoid or polyethylene film. These measures will help to increase the service life of the structure, protect it from decay and premature destruction.


If foci of decay were noticed wooden material, it is necessary to dismantle the entire structure. Damaged elements must be replaced.

Nuance! After thorough drying, treat all components with an antiseptic and dry again. Before assembly, you need to coat the wooden elements with wax or water-repellent varnish.