Warm wooden floors in the house on a pile foundation. A simple solution
Many have heard (or even know by themselves) that in winter, wooden floors in a house on a pile foundation are cold. Even 150-200 mm of insulation is not enough for the wooden floor to have room temperature. Everyone in the house has to wear slippers.
One of the options to remedy the situation is to lay an infrared film underfloor heating under the topcoat. The solution is not the cheapest. It also includes a water-heated floor on a wooden base, mounted using the following technology:
A wooden contour is laid with sheets of metal plates (for better thermal conductivity from a pipe with a coolant). A cross-linked polyethylene pipe (for underfloor heating) is laid along the gutters. Heating the pipe from any boiler or even from a stove. Plywood or gypsum fiber board and topcoat are mounted on top.
It is important to understand that the use of OSB sheets in this scheme to create a contour is not desirable. When heated, harmful volatile compounds, phenols, can come out of the sheets in much larger quantities. It is better to make the contour from kiln-dried boards. And the subfloor on top of the pipes is made of GVL sheets.
It will not be possible to heat the house with such floors. This is only to create a comfortable floor temperature. Even such a floor will "eat" a certain height of the room (within 5-7 cm). Due to the use of a wooden contour, the method is rather material-intensive and a lot of labor costs. There is an easier way to make wood underfloor heating. But it must be foreseen before installing the subfloor.
The coolant pipe is mounted under the roughing board. Slots are made in the logs, a pipe is laid in them. It can either hang (a variant of heating wooden floors in a bath) or lie on a heater. There will be air heating inside, which will also heat the floors.
A separate issue of attaching the pipe to the insulation. In some versions, it is attached to a metal mesh (this increases the cost of heating) or fixed with brackets and clamps to wooden beams.
Below is a thermal inspection of such floors, turned on an hour before the study:
The floors will warm up more evenly during the day. As a conclusion: this laying of a heating pipe under rough floors is quite a working solution to make the temperature of wooden floors on a pile foundation is comfortable for walking around the house in winter barefoot.
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