Floors in the house on screw piles. Floor insulation in a frame house on a pile foundation Floor insulation in a log house on screw piles

Pile foundations have gained massive popularity due to their relatively low price and the ability to use them in poor soil conditions. Such structures are quickly mounted and can be used for almost any type of structure. Insulation of the floor cake in a frame house on stilts has its own characteristics, which must be taken into account in order to avoid problems during further operation.

Building design features

When erecting a building on screw piles, it must be taken into account that the house does not have a basement or basement, but there is a ventilated underground. Such foundations are used mainly in swampy areas, so another important factor in operation will be the increased humidity of the space under the house.

When building a house on screw foundations, it is important to pay great attention to the performance of the insulation and additional layers.

As a reliable protection of the heat-insulating material and the interior from high humidity, waterproofing and vapor barrier will become, the neglect of which will soon lead to serious problems.

The composition of the floor of the frame house

To build a ceiling over a ventilated space, you need to lay the layers in the following order:

• load-bearing wooden frame (with a subfloor “bearing” insulation);
• a layer of vapor-permeable wind protection (to protect the insulation from “weathering”);
• thermal insulation material;
• steam and waterproofing;
• clean floor construction (board + finishing floor).

All materials for a building on screw foundations must be laid in this order. In some sources, the erroneous laying of the vapor barrier on the cold air side is given, but this does not make sense. Steam forms in a warm room and settles on colder surfaces, thus forming condensation. In order to prevent the penetration of condensate into the heat-insulating layer and reduce the degree of protection of the building from the cold, a vapor barrier is provided.

Why is insulation necessary?

The need for heat-insulating material is not always clear to a person far from construction. From the point of view of the future owner of the house, it is much easier to build on the bearing capacity of the structure.

Neglect of thermal insulation standards can lead to the following problems during the operation of the building:

• condensation on the surface of the ceiling on the technical underground;
• reduced building energy efficiency and increased heating costs;
• high humidity leads to rotting of wood, the appearance of mold and fungus, as a result of which wooden structures quickly fail and require costly repairs.

Insulation of the floor in a frame house allows you to avoid these troubles and ensure a long service life of the building and all its structures separately.

Materials for insulation

Attention should be paid not only to the insulation material, but also to vapor barrier, waterproofing and wind protection.

The choice of insulation

Various materials can be used as a heat-insulating layer. It is important to consider the possibility of operation in conditions of high humidity. The most rational solutions are the following options:

Mineral wool insulation. Mineral wool has a large number of advantages, including incombustibility, high thermal insulation characteristics. Not subject to biological influences. The disadvantages include the fact that if water gets on the material, it sags and loses its properties. Compared to other types, this insulation has a fairly high cost. Mineral wool is produced in the form of rolls and plates. For the floor of a house on screw foundations, it is better to use slab insulation, since it has greater rigidity. Depending on the type of feedstock, stone, glass and slag wool are distinguished. It is important that when working with the material, builders need to have protective equipment: overalls, gloves, a mask.

attractive in price and has good thermal protection. It is worth considering that when exposed to low temperatures at high humidity, it can crumble into small balls. Such damage leads to a violation of the thermal protection of the building. If foam is used, it is important to protect it most carefully from moisture penetration.

(known to everyone as "Penoplex") outwardly very similar to polystyrene, but devoid of its main drawbacks. The material has higher strength and low water absorption. Thanks to this, you can not be afraid for its destruction at low temperatures. In addition, extruded polystyrene foam is produced with special additives that allow it to fall into the group of non-combustible materials. The heat-shielding characteristics of these three materials are almost identical.

As another cheap option for insulating the floor of a house on screw piles, you can bring expanded clay. It is inferior in terms of thermal insulation to all other materials, but is affordable. It is nonflammable and easy to work with. Represents particles of transverse clay of a rounded shape.

Selection of related materials

The next step is to choose waterproofing and wind protection. Modern manufacturers produce materials that combine both of these functions at once. The design of the floor in the house on screw piles is somewhat reminiscent of an inverted mansard roof pie, for the construction of which builders often use moisture-proof vapor-permeable membranes. Such a multifunctional material allows you to save time on laying.

A vapor barrier is laid on the insulation. It can serve as an ordinary plastic film. In addition, you can purchase special materials.

All wooden frame elements are necessarily treated with antiseptic compounds. This helps protect them from fungus, mold and insect damage.

Mounting process

Laying the floor cake in a frame house on screw piles is carried out in the following order:

1. Layout of load-bearing beams (lag);
2. attachment parallel to the joists cranial bars small section;
3. styling boardwalk or plywood;
4. fixed on top of the flooring vapor-permeable wind protection;
5. mounting insulation differs depending on the selected type (laying, backfilling);
6. over the heat-insulating layer is laid out and fixed polyethylene film or glued special vapor barrier material;
7. construction erection floor covering.

All the nuances of the technology are disclosed in more detail in this video:

The installation process is quite simple, and you can do it yourself, which significantly reduces the financial costs of construction.
Subject to all the rules, the correct order of laying the layers of the floor cake for the house on screw piles and a responsible attitude to the choice of materials, the future owner receives a reliable and durable structure that will protect the building from the penetration of cold. Self-laying allows you to carefully control the quality of construction.

Foundations on screw piles are not uncommon in frame housing construction. Taking into account the features of the building, a number of requirements are imposed on the floor of the first floor. The base must be not only strong, but light, so as not to create an excessive load on the piles. No less significant is the thermal insulation aspect. How to combine these characteristics and properly equip the floor? Let's try to figure it out.

The specifics of the floor and the requirements for its arrangement

The foundation of a frame on screw piles has many advantages. Among the main advantages are:

• affordable cost;
• short construction time;
• versatility - suitable for sites with difficult terrain and floating soils.

Despite significant advantages, the floor of a frame house on screw piles has a clear drawback - a ventilated underground. Therefore, one of the main tasks of arranging the base is high-quality insulation and waterproofing. The heat-insulating cake solves a number of problems:

• acts as a barrier between wooden structures and moisture, preventing mold and floor rotting;
• improves the energy efficiency of the home;
• prevents the formation of condensation on the surface of the floors.

In the course of work on the installation of the floor, it is necessary to take into account a number of important points and requirements. The builder must ensure:

1. Treatment of the lower strapping of the floor with an antiseptic. A deep penetration penetrating compound should be used, since conventional impregnation disappears after 6-7 years.
2. Placement of insulation between the lags.
3. Pickup for piles. Thermal insulation of the basement reduces heat loss, prevents the soil from freezing under the house and is part of the decor.
4. Ventilation products. Arrangement of holes with a diameter of 10 cm, the total area of ​​\u200b\u200bvent ducts is 1/400 of the basement perimeter.

General floor plan of a frame house

The upper strapping of the beams along the fundamental supports is at the same time lags, which in itself reduces the cost of the construction budget. The structural floor pie has the following scheme:

1. Draft floor. The basic base is assembled from the crate and the bottom filing. As a substrate are used: edged board, chipboard, OSB or multilayer plywood.
2. Waterproofing. The best option is a perforated membrane, an alternative is a film.
3. Insulation. Options for thermal insulation material:, extruded polystyrene foam, expanded clay.
4. Vapor barrier. Prevents formation of condensate and wetting of a layer of a heater.
5. Underlying. The choice of further technology depends on the type of flooring.

If it is planned to lay parquet, laminate or floorboard, then on the floor laying multilayer plywood. For decoration with tiles or linoleum, a dry screed is suitable. The "water floor" system is equipped in a self-leveling screed.

Selection of structural elements and materials

Reliability, durability and heat efficiency of the floor largely depend on the materials used. Let's consider admissible options and we will designate unacceptable decisions.

Attention to the quality of floor beams

In frame housing construction, wood is mainly used for tying screw piles. Usually softwood lumber is taken: larch, pine and spruce.

The main requirement is use of dried materials. The humidity of the beam should not exceed 12%, otherwise the structural parts may be deformed after their installation.

The arrangement of the grillage is possible in several ways:

1. Laying a monolithic beam measuring 20 * 15 cm. When building a two-story house, you can use a beam of 20 * 20 cm.
2. Rostverk from assembled boards. A budget option. Each beam is formed from two or three boards. The output should be a beam with a section of 20 * 15 cm.

With reliable fixation of the boards, the "batch" method is not inferior in strength strapping from solid beams.

Bottom trim options

When choosing a material for the sub-base, it must be remembered that it is undesirable to overload screw piles. Therefore, the casing must be strong enough, but not heavy. Its main task is protection from wind and moisture.

What will do? Here are some options:

1. OSB. An affordable material with good strength, but vulnerable to water. Before installation, it requires treatment with a compound designed to protect wood. The weak point is the joints of the plates. They must be covered with acrylic sealant.
2. Chipboard. It is easy to process, but like OSB it is vulnerable to moisture. Inferior to the previous material in terms of environmental friendliness.
3. Multilayer plywood. It is permissible to use only moisture-resistant sheets marked FK or FSF. The composition contains formaldehyde resins - they increase the resistance of the material to an aggressive environment.

Very often, ordinary flooring made of boards with a section of 5 * 10 cm is used for subfloor installation. This option cannot be called economical, but durability and environmental friendliness are beyond doubt. The main requirement is pre-treatment of wood.

Insulation - the basis of thermal insulation of the floor

When choosing a heat-insulating material, the main attention is on the possibility of its operation in a humid environment. The most rational solutions:

1. Mineral wool. The best solution is basalt fiber mats. Pros: environmental friendliness, incombustibility, low thermal conductivity, resistance to deformation, minimum water absorption - 2%. Over time, stone wool shrinks only 5% - with proper installation, cold bridges at the junctions with lags do not form.
2. Extruded polystyrene foam. The leader in insulating properties. Additional advantages: elasticity and resistance to deformation, lack of water absorption, biostability, ease of installation. Disadvantages: high cost and flammability.
3. Expanded clay. Budget alternative to sheet heaters. Somewhat inferior in terms of thermal insulation characteristics to mineral wool and expanded polystyrene. An important plus is fire safety.

Styrofoam is sometimes used to insulate the floor in a frame house on screw piles. The main advantages: good thermal protection and low cost. However, upon contact with moisture and under the influence of low temperatures, the material loses the integrity of the structure. This solution is applicable in warm regions.

Step-by-step floor installation on a pile foundation

Let us describe the sequence of actions for arranging and insulating the floor of the frame on screw piles. Work begins after careful preparation of wooden elements: treatment with an antiseptic and flame retardant composition.

Strapping device and fastening of the crate

Suppose that the piles are installed, the metal heads for fixing the beams are fixed. Further progress of work:

1. Drill four holes on each "sole" of the screw supports.
2. Lay waterproofing on the heads, for example, roofing material.
3. Lay out the bars along the perimeter of the structure and connect the elements to each other “in half a tree”.
4. Attach the beams to the heads with self-tapping screws.
5. Carry out the insertion of the remaining bars inside the perimeter.
6. With steel brackets, additionally connect the strapping parts.
7. Check the horizontal position of the beams.
8. Fill the crate to the bottom of the bars - the base for attaching the base.

Draft base and thermal insulation

Lay sheets of OSB, chipboard or moisture-resistant plywood on top of the guide rails. If edged boards are used, they must be nailed perpendicular to the joists.

After preparing the subfloor, proceed to its isolation:

1. Cover the base with waterproofing film.
2. Place a heater in the cells between the lags. When cutting mineral wool, it is necessary to provide a margin of 0.5 cm on each side for the most snug fit and to prevent the appearance of cold bridges.
3. Spread a vapor barrier membrane over the insulation with an overlap between the sheets. Glue the joints with construction tape.

The next steps depend on the type of flooring.

Creating a plinth thermal circuit

The device of the floor in the house on stilts without fail provides for driving the basement. The following insulation options are available:

1. Brickwork. The base is a pillow of crushed stone and sand. The pick-up is laid out in half a brick, reinforcement is not necessary. For work use ceramic or clinker bricks.
2. Siding. Thermal plates are mounted on a crate made of galvanized profile or bar, assembled on piles.
3. Decking. Runs are welded to the bored posts, which serve as the basis for fastening the profiled sheet.
4. DSP. Sheet material is mounted by analogy with a profiled sheet. The outer part can be decorated with flexible tiles, porcelain stoneware.

Regardless of the chosen method of finishing the underground part, it is necessary to provide for "vents" - openings for natural ventilation.

The blind area of ​​the house is laid out from a concrete screed, paving slabs or paving stones. When arranging, it is necessary to maintain a slope angle of 4 ° outward. Be sure to seal the junction of the false plinth cladding with. This will prevent meltwater and precipitation from entering the underground.

The nuances of arranging a warm floor

Warm on piles is performed using a water circuit or heating mats.

Arrangement scheme

1. After installing plywood or OSB on the bars and waterproofing the subfloor, sheets of expanded polystyrene should be laid in the gaps between the lags. The top surface of the plates should be flush with the strapping.
2. Spread a vapor barrier over the insulation, leaving a supply of film around the entire perimeter based on the height of the finished floor.
3. Lay the reinforcing mesh, fill it with a thin layer of cement-sand mortar and leave until completely solidified.
4. Lay the foil backing with the shiny side up.
5. Lay underfloor heating mats and fill with concrete screed.

In the process of setting, the solution must be periodically moistened so that cracks do not appear. After the final hardening, you can lay top coat.

Video: how to make a screed

Arrangement and frame on a pile foundation does not present any difficulties. But with all the simplicity of execution, the process requires the performer to be attentive and observe all technological nuances.

Floor insulation in a frame house on piles should be carried out, taking into account the design features of such housing. Only in this case you will not face the problem of lack of comfort indoors. When a house is installed on supporting piles, it usually has a basement. This can be considered an advantage, which slowly flows into a disadvantage, which consists in blowing through the lower part of the house from all sides.

Features of insulation

Such buildings are built on swampy soils, so the space under them is characterized by a high level of humidity. In order for the house not to be exposed to the negative effects of natural factors, its flooring must be equipped in several layers.

Thermal insulation cake

Insulation of the floor in a frame house assumes the presence of a supporting skeleton, which is combined with Next comes the wind protection, which is characterized by vapor permeability. It is required to protect the applied insulation material from weathering. The next layer is a heat insulator, covered with moisture and vapor barrier layers. The final floor will be finished, which is covered with boards.

How to eliminate errors

When choosing an insulating material for such a "pie", you must be guided by the fact that it must be of high quality. It is recommended to use good steam and waterproofing products that will reliably protect the premises from moisture. If the floor insulation in a frame house installed on piles is not carried out in accordance with all the rules, then you may encounter an increase in heating costs, the presence of condensate above the underground and the appearance of fungus and mold.

Pile structures can be thermally insulated using several technologies; the main requirement in this matter is the need to use materials that could be used in wet conditions. Insulation of the floor in a frame house with foam is one of the best and most rational approaches. But at low temperature and high humidity, this material is destroyed into separate elements. If you want to use this thermal insulation, then you should take care that it is reliably protected from moisture.

Mineral wool is also quite common to solve the described problem. It is inert to biological influences, has high heat-shielding characteristics and is not afraid of fire. But when water penetrates inside, the protective properties of the insulation are lost. With appropriate measures, you can use any type of mineral wool, among them:

• stone;
• glass;
• slag.

This heat insulator is sold in rolls and slabs, but experts recommend using the latter option, since it has a more impressive density compared to its roll counterpart.

Insulation of the floor with foam plastic in a frame house is also carried out quite often. This material is polystyrene foam, manufactured using extrusion technology. It has low moisture absorption and high strength. These features give the material many advantages over cheap counterparts. If we compare it with polystyrene foam, then foam plastic will be more reliable.

Alternative Solutions

Warming the floor of a frame house with expanded clay is also quite common. Using this material is simple, and there is no need to resort to outside help. Expanded clay differs in fire safety and low cost. But when compared with the materials mentioned above, expanded clay is inferior in terms of heat-shielding properties.

In the role of hydro- and windproof on a pile foundation, vapor-permeable moisture-windproof membranes should be used, which are easy to install. However, you should be prepared that the cost of such substrates is quite high. As a vapor barrier, you can use a simple polyethylene film, which is laid directly on the insulation layer.

Features of floor insulation with expanded clay

The first, when the floor is insulated with expanded clay, is a layer of waterproofing. In this case, it is especially relevant, because the insulation absorbs moisture well, which can cause unpleasant consequences. To achieve uniformity, before backfilling with expanded clay, it is necessary to set guide beacons that will determine the level of the future floor.

For reliable fixation of the insulation, a layer of screed is used, as well as upper waterproofing. Before applying the final top layer of the screed, the intermediate fixation layer must be poured. To do this, the cement is mixed with water to obtain a homogeneous suspension. It should be filled with a layer of expanded clay. After drying such a layer, you will be able to get a monolithic expanded clay floor, which will not be afraid of exposure to moisture and high loads. This design is able to withstand even a small earthquake. The final layer will be a screed, with which you can finally level the floor.

Step by step instructions for thermal insulation of the floor

At the first stage, a subfloor is arranged; for this, a wooden beam, which is also called cranial, is attached to the logs. It will act as a support for the finishing boards. The used wooden elements must be treated with an antiseptic, at the next stage, you can proceed with the installation of the boards.

If you decide to use expanded polystyrene or polystyrene, it is recommended to lay the grid instead of the subfloor. It is fixed to the lags so that it is able to withstand the weight of the heat insulator used. Overloading piles with excess weight is not recommended. After the completion of the arrangement of the subfloor, a vapor barrier is laid on its surface. All moisture from the outside will remain outside, and it will not affect the insulation layer. This area can be vapor-insulated with a plastic film, which is quite often replaced with roofing material.

Insulation of the floor in a frame house at the next stage involves the installation of thermal insulation. A layer of vapor barrier should be placed on top of it, which prevents the penetration of condensate and internal moisture into the “pie”. When laying the vapor barrier, you should get rid of the gaps that may remain between the sheets of materials. Otherwise, which may be dangerous for thermal insulation, because they will soon destroy the structure of the material.

At the next stage, you can proceed to laying the final floor, using chipboard, floorboard, plywood sheets or other products. Floor insulation in a frame house should be accompanied by the protection of piles with a stationary base. In this case, snow will not fall under it. But if you do not intend to build a warm space or you do not have the opportunity to do so, then the supporting elements should be closed with a decorative plinth, which is characterized by fast installation and low cost.

Floor insulation through the plinth

When the floor is insulated in a frame house, you can close the base with your own hands using one of the existing methods. Why is brick or frame imitation of the base used, the latter of which allows you to equip an analogue of a ventilated facade. If you decide to use masonry, then the fence must be built using brick halves. The first row should be laid on a pre-arranged sand cushion, which is well rammed.

The fence must be waterproofed using roofing felt. Proper insulation of the floor of a frame house necessarily involves thermal insulation of the basement. For this, its imitation can be used. This technique allows you to complete the work in the shortest possible time, saving money. The frame is made by installing a crate from wooden beams or a galvanized profile. They must be installed directly on piles. This design at the next stage is sheathed with roofing material, PVC sheets are installed on top, which imitate stone or brick. Polyvinyl chloride products are strengthened with nails or universal self-tapping screws. The first option is suitable for a wooden crate, while the second is for a metal profile.

Double thermal insulation

Double insulation of the floor of a frame house involves the use of double floor technology. From the name it is clear that the flooring from the boards will have to be done twice, but the boards will be different. The draft floor will be equipped with unhewn boards that fit well together. A layer of roofing material is laid on top, which will protect the wooden floor.

The next layer will be sand, the height of which should be between 3 and 5 cm. Next, the sand is covered with plastic wrap, reinforced with nails or a construction stapler. The next layer will be thermal insulation, which is pre-cut into pieces. Chipboard boards should be laid on top, on which the finishing floor will be laid.

Features of cross thermal insulation

Cross floor insulation in a frame house is also used quite often. When the basement is equipped with beams with the following dimensions: 200 x 500 mm, the thickness of the insulation should be 200 mm. The upper layer of thermal insulation should be perpendicular to the lower layers, which gives the name of the technology.

Conclusion

Insulation of the floor in a house with a foundation on piles can be carried out thoroughly, but if you want to experiment, then thermal insulation can be done even with the help of carpet. This method is great for those owners who have not yet decided to open the floor.

To do this, use a material that is similar in characteristics to ordinary carpets. The carpet will be laid over the entire floor area of ​​the room, affecting the perimeter. This approach will close the gaps in the concrete and wooden floor through which cold air enters from the basement.

Floor insulation in a house on piles must be carried out taking into account the design features of such a dwelling. Only in this case, there will be no problems with its operation.

Residential buildings installed on pile supporting elements do not have a basement or basement level. But they have an underground, blown from all sides by the winds. Such buildings, as a rule, are erected on swampy soils. In this regard, the space under them is always characterized by a fairly high level of humidity.

In order for the house on screw piles to be used for a long time and not be exposed to the harmful effects of natural factors, its floor covering is equipped in several layers:

1. Wooden supporting skeleton. It must be built with a rough floor.
2. Wind protection (vapor permeable). It is necessary to protect the heat-insulating material used from weathering.
3. direct heat insulator.
4. Moisture and vapor barrier layers.
5. Finished floor, covered with boards.

Floor covering of the house on screw piles

The floor base for a dwelling on screw piles is erected in this way. At the same time, the performance characteristics of heat-insulating materials for such buildings should be as high as possible. It is also recommended to use high-quality steam and waterproofing products that reliably protect rooms in a wooden house on stilts from moisture. If the owner of a structure on a pile foundation does not perform high-quality floor insulation in his home, he will face the following serious problems during the operation of the building:

• an increase in heating costs due to a decrease (and significant) in the energy efficiency of the building;
• the presence of condensate above the technical underground (directly on the surface of the floor base);
• the appearance of fungus, mold, rotting of the wooden elements of the building, caused by constant high humidity.

It is enough to competently insulate the floor in the house on a pile foundation once and forget about all these troubles forever.

In principle, the thermal insulation of the floor of a pile structure can be made with different products. The main thing is that they are suitable for use in wet conditions. From the point of view of specialists, it is most rational to carry out floor insulation in a house on piles with such materials:

1. Styrofoam. It provides high quality thermal protection. But you need to take into account the fact that at high humidity and low temperature, the foam is able to collapse into separate small pieces. If you decide to perform thermal insulation with this particular material, take care of its effective protection from moisture.
2. Minvatoy. It is not afraid of biological influences, is characterized by very good heat-shielding performance, is a non-combustible material. True, when moisture (even a small amount) penetrates cotton wool, its unique protective properties are lost. Floor insulation can be carried out with any type of mineral wool - slag, glass or stone. Such a heat insulator is produced in plates and rolls. It is desirable to use in the form of plates (it is characterized by a higher density compared to rolled material).
3. Penoplex - expanded polystyrene, manufactured by extrusion. It has a low moisture absorption rate and increased strength. These characteristics distinguish it for the better from cheaper, but also less reliable foam.

Often, the insulation of buildings on screw piles is performed using expanded clay. It is easy to use, which is important for home craftsmen engaged in independent repair work without the involvement of specialists, it is not subject to combustion and has a low cost. But in terms of heat-shielding characteristics, expanded clay is inferior to all the materials mentioned earlier.

Floor insulation with expanded clay

It is recommended to use modern vapor-permeable moisture and wind-insulating membranes as wind and water protection products for the floors of structures on a pile foundation. They are quick and easy to install, but the price of such multifunctional products can bite. Important! All elements of a wooden house on piles should be treated with compounds with special antiseptic properties.

And don't forget the vapor barrier. As such, a simple polyethylene film is quite suitable. It is laid directly on a layer of thermal insulation material.

First you need to make a draft floor. Its device is simple - you nail a wooden beam, which is called cranial, to the lags. It will act as a support for the floorboards. Be sure to treat all used items with an antiseptic. Then lay the boards in the deck. When using polystyrene foam or polystyrene foam, it is allowed to mount a special mesh instead of the subfloor. It must be qualitatively attached to the logs so that it can withstand the mass of the insulation used without problems.

Draft floor in the house

In general, you need to constantly remember that it is impossible to overload piles with excess weight. After arranging the subfloor, lay a vapor barrier layer on it. All moisture from the atmosphere must remain outside, without falling on the heat-shielding material. This part of the vapor barrier can be made of polyethylene film or roofing material. Then lay the insulation, and on top of it another layer of vapor barrier. It will protect the cake from condensation and internal moisture.

When installing heat and vapor barrier, do not leave gaps between the individual elements of the materials used. This is fraught with the formation of cold bridges. They are very dangerous for the insulation, as they quickly destroy it during operation. Now boldly equip the finishing floor in the house, using chipboards, plywood sheets, floorboards and other products for this purpose. Pro tip! Be sure to cover the piles with a warm stationary base. Then snow will not fall under the house. If there is no desire or opportunity to make a warm structure, close the supporting elements with an inexpensive and quick-to-install decorative plinth.

When installing a house on a pile foundation, there is no plinth in the construction of the structure. It, as was said, must be done. Often, instead of a full-fledged base, they erect its decorative imitation - a pick-up. It perfectly protects the underground from snow drifts and wind. To perform this operation, you can use one of two methods:

1. Rubble or brickwork. Such a fence is built in half a brick. The first row of stones is laid on a sand cushion (it needs to be compacted very well). The pick-up is waterproofed using roofing material.
2. Frame imitation of the plinth. This technology allows you to build an analogue of a ventilated facade. It is very economical and fast in execution. The frame is erected by mounting a galvanized profile crate or wooden beams directly onto the piles. Then this structure is sheathed with roofing felt, and PVC sheets are attached on top under brick or stone. PVC products should be fixed with nails (if the crate is made of wood) or (metal profile).

Frame imitation of the plinth

The pick-up makes it possible to reduce the consumption of insulation: it can be laid in a thinner layer. May your home always be dry and warm!

In recent years, pile foundations have gained quite a lot of popularity. This is not surprising, since the main advantage - the ability to use on poor soils - allows you to use them almost everywhere. At the same time, another most important factor in modern conditions, namely financial, is also, rather, an advantage than a disadvantage of technology. The disadvantages include the need to perform such work as warming the floor of a wooden house on stilts. Its production is largely due to the design features.

How to insulate the floor in a wooden house on screw piles

Insulation of the floor of a wooden house on screw piles is mandatory. It is necessary in order to solve several potential problems caused by design features at once:

• condensate on the ceiling located above the technical underground;
• large losses of heat from the building and, as a result, a significant amount of heating costs. In modern conditions of high tariffs for heating, this circumstance is a very significant drawback;
• high levels of humidity, which can gradually lead to wood becoming unusable due to the appearance of rot, fungus and mold. As a result, costly repairs will be required.

Each of the reasons listed above is quite sufficient to make a decision to insulate the floor in a wooden house on stilts. Therefore, the need for such work is almost never questioned. Its implementation is, in fact, mandatory for the normal operation of the building for a long period.

The floor insulation in a wooden house made of logs on screw piles is as follows. A fairly standard heat and waterproofing “pie” is created, which includes several mandatory layers. The first of them (respectively, the lowest) is a supporting frame made of wood. It is usually made of timber and flooring, which forms a subfloor. Its purpose is to carry the subsequent layers of the "pie".

Next, waterproofing is laid, which also plays the role of wind protection. This layer is very important to ensure the durability of the insulation being performed. Without its implementation, the heat-insulating material will quickly become unusable, weathered or losing its properties due to wetting that has occurred in one way or another.

The next step, which is necessary when the floor is insulated in the log house on piles, is the laying of heat-insulating material. Naturally, it is its qualities and characteristics that mainly determine the quality of the work performed.

On top of the insulation is a layer of vapor and waterproofing. Its purpose is quite obvious - to prevent moisture from entering the heat-insulating material from above, while not preventing its movement from the insulation.

The final stage is the device of the finishing floor, which can be performed in a wide variety of ways. Most often, in houses made of rounded timber, which has become popular in recent years, the floor is also made of wood, which is quite understandable. Still, wood is deservedly considered as the most useful and natural, as well as aesthetically attractive building material.

The choice of materials for insulation

The quality of floor insulation of a wooden house on piles is determined not only by the correct composition and sequence of work, but even more so by the competent choice of materials used. A huge number of them are presented on the modern market, which can put any person who wants to do construction or repair in a difficult position.

When performing floor insulation in a wooden house on piles, three types of materials will be required, each of which should be considered separately.

Beam and board

Ordinary lumber, which was used at other stages of construction, is perfect for the production of work. The main thing at the same time is to carry out mandatory protective treatment and impregnation not only with antiseptics, but also with flame retardants. In practice, quite often, when building private houses, fire protection measures are neglected, saving financial resources. Experienced builders quite rightly believe that the small savings obtained in this way are clearly not worth the increased risk of a fire and the subsequent destruction of everything built with such difficulty.

Steam and waterproofing, wind protection

As a waterproofing, which, when insulating the floor in a wooden house on piles, is laid on top of the rough flooring, in the overwhelming majority of cases, the most common plastic film is used. It is an affordable material sold in any hardware or hardware store, and at a low cost. Its technical and operational characteristics are quite suitable for the normal and durable operation of the heat-insulating "pie" being performed.

Currently, there are materials on the market that combine the functions of vapor barrier and wind protection. At the same time, their cost is quite low and is quite affordable. Almost any polyethylene or polypropylene vapor barrier film will do. It is not recommended to save on the implementation of the device of this layer, since this will certainly lead to a much more expensive repair.

Thermal insulation material

As a heater, one of three materials is most often used. The most common option is, without a doubt, mineral wool. There are many varieties of it, in particular, stone (basalt), glass, slag. All of them have low thermal conductivity and are great for use when insulating the floor of a wooden house on stilts. The greatest preference is usually given to the most dense types of cotton wool, since it is more convenient and easier to work with them.

The second fairly common material is foam. It has a high level of thermal protection, but has several obvious disadvantages. First, he is hot. Secondly, at high humidity levels, there is a danger of it crumbling into small balls.

The third heat-insulating material is the traditional, affordable and inexpensive expanded clay. Its main disadvantage is the low thermal protection indicators, which leads to the need for laying in a thick layer. The rest of the insulation is quite consistent with the necessary requirements.

Other, more modern heat-insulating materials, for example, extruded polystyrene foam, penofol, etc., are relatively rarely used in practice in private housing construction. Despite the excellent thermal protection parameters, they are quite expensive compared to the materials described above.