Insulation of the floor in a frame house on stilts should be carried out, taking into account the design features of such housing. Only in this case you will not encounter the problem of lack of comfort indoors. When a house is installed on supporting pile elements, it usually has a basement or basement. This can be considered a virtue, which slowly flows into a disadvantage, which consists in the blowability of the lower part of the house from all sides.
Features of insulation
Such buildings are built on marshy 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, it is necessary to equip its flooring in several layers.
Thermal insulation cake
Insulation of the floor in the frame house suggests the presence of a supporting skeleton, which is combined with the draft floor. Next is wind protection, characterized by vapor permeability. It is required to protect the applied insulation material from weathering. The next layer is the heat insulator, which is covered by moisture and vapor barrier layers. The final will be the final floor, which is covered with boards.
How to eliminate errors
Choosing insulation material for such a "pie", it is necessary to be guided by the fact that it should be of high quality. It is recommended to use good steam and waterproofing products, which will reliably protect the premises from moisture. If floor insulation in a frame house installed on piles is not performed according to all the rules, then you may encounter an increase in heating costs, the presence of condensate over the underground and the appearance of fungus and mold.
Material Guidelines
Pile structures can be insulated using several technologies, the main requirement in this matter is the need to use materials that could be operated in humid conditions. Insulation of the floor in a frame house with polystyrene is one of the best and rational approaches. But at low temperature and high humidity, this material is destroyed into individual elements. If you want to use this thermal insulation, you should make sure that it is reliably protected from moisture.
Mineral wool is also common enough to solve the described problem. It is inert to biological influences, has high heat-shielding characteristics and is not afraid of fire. But with the penetration of water into the protective properties of the insulation are lost. With appropriate measures, you can use any type of mineral wat, among them:
This heat insulator is sold in rolls and plates, but experts recommend using the latter option, since it has a more impressive density compared to a roll counterpart.
Insulation of the floor with penoplex in the frame house is also carried out quite often. This material is polystyrene foam manufactured by extrusion technology. It has an insignificant indicator of moisture absorption and has high strength. These features give the material many advantages compared to low-cost counterparts. If we compare with polystyrene, then polystyrene 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, but 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 materials for floors on a pile foundation, vapor-permeable moisture-proof membranes that are easy to install should be used. However, you should be prepared that the cost of such substrates is quite high. As a vapor barrier, you can use a simple plastic film, which is laid directly on the insulation layer.
Features of floor insulation expanded clay
The first, with expanded clay floor insulation, 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 filling with expanded clay, it is necessary to set guiding 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, fill in the intermediate fixation layer. To do this, the cement is mixed with water to obtain a uniform suspension. She should fill in 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 moisture and high loads. This design can 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 floor insulation
At the first stage, a rough floor is arranged, for this a wooden beam, which is also called cranial, is attached to the lags. It will serve as a support for the finish flooring boards. The wooden elements used must be treated with an antiseptic, the next step is to proceed with the installation of the boards.
If you decide to use polystyrene foam or polystyrene, it is recommended to lay the mesh instead of the subfloor. It is fixed to the lags so that it is able to withstand the weight of the used heat insulator. Overloading piles overweight is not recommended. After completion of the arrangement of the draft floor, 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 insulated with a polyethylene film, which is often replaced by roofing material.
The insulation of the floor in the frame house at the next stage involves the installation of thermal insulation. On top of it should be a vapor barrier layer, which eliminates 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, cold bridges may occur , which are 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 chipboards, floorboards, plywood sheets or other products. The floor insulation in the 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 for this, then the supporting elements should be closed with a decorative base, which is distinguished by the speed of installation and low cost.
Floor insulation through the basement
When the floor is insulated in a frame house, you can close the base with your own hands, using one of the existing methods for this. What is the use of brick or rubble masonry, frame imitation of the basement, the last of which allows you to equip an analog of a ventilated facade. If you decide to use the masonry, then the fence must be built using the halves of the brick. The first row should be laid on a pre-equipped sand cushion that is well tampered.
The pick-up must be waterproofed using roofing material. Proper insulation of the floor of a frame house necessarily requires 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 the lathing of wooden beams or galvanized profile. They must be installed directly on the piles. At the next stage, this construction is sheathed with roofing felt, PVC sheets are installed on top, which imitate stone or brick. PVC products are strengthened with nails or universal self-tapping screws. The first option is suitable for a wooden crate, while the second is suitable for a metal profile.
Double thermal insulation
Double insulation of the frame house floor 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 rough floor will be equipped with uncouth planks 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 a limit of 3 to 5 cm. Next, the sand is covered with a plastic film, reinforced with nails or a construction stapler. The next layer will be thermal insulation, which is pre-cut into pieces. Chipboards should be laid on top, on which the final 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 stilts can be carried out thoroughly, but if you want to experiment, then thermal insulation can be done even with the help of a carpet. This method is great for those owners who have not yet decided to open the floor.
To do this, use material that is similar in characteristics to ordinary carpets. Carpet to be laid over the entire floor area of the room, affecting the perimeter. This approach will close the gaps on the concrete and wooden floors, through which cold air penetrates from the basement.