Polystyrene as a floor warmer
Polyfoam for a warm floor is used often, we will understand its properties and understand why. First, this material consists of granules that contain air inside. This particular structure allows to store heat. Secondly, it is absolutely not hygroscopic, thanks to the dense walls of granules. This means that the water absorption of this material is minimally low. Even if the surface is completely flooded with water, the cell walls simply will not miss it.
Thirdly, due to the fact that the material is 98% air, it is also able to perfectly absorb the sound of .That is why it is used not only in homes, but also in commercial premises. When walking, noise from shoes and heels is almost not audible. Fourthly, because of, again, the most simple structure, the material differs with the extraordinary ease of .It is easy to mount, and the laying process can produce even an inexperienced master. By the way, they can also warm the walls.
Polyfoam for flooring: laying on the ground
In the case where the insulation of the surface on the ground is supposed to be, it is necessary to first prepare the base. For this, it is leveled. And if the soil is still loose, then compact. A pillow of gravel or crushed stone is about 10 centimeters thick, it is tamped by hand. From above put a layer of sand of exactly the same thickness, press it. Then a layer of polyethylene and polystyrene are laid.
If you suddenly plan to lay not on the ground, but on a massive screed or reinforced concrete slab, then immediately cover it with a film, and then put the foam under the warm floor. On top, a special metal mesh is applied for subsequent concreting with a cement-sand mixture( that is, a screed is applied to the foam plastic).The thickness of this layer must be at least 60 mm.
In this case, the thickness of the foam for floor insulation is about 3-5 centimeters. It is then that this design is capable of withstanding the load with a total volume of up to 30 tons per square centimeter. At the last stage leveling is done by leveling or installation of the litter material is carried out. The surface is ready for use.
Floor foam: laying on the ladders
How is the floor insulation made of foam under the screed is understandable, but it also happens that you need to lay it on the logs. For this, the base is covered with a film. It is necessary in order to protect the heat-insulating material from moisture. Then the crate is made of wooden logs. Between them, the foam is placed under the warm floor. Thus, the material is uniformly located in the frame.
By the way, in this case, it is possible to use foam as granular as well as extruded. However, before laying it is necessary to take care that there are no cracks and cracks in the base, since mice and other rodents can enter there. That is why they are carefully closed and only then they mount the insulation. At the finishing stage, OSB plates or fiberboard are applied. They also perform the function of facial coating.
Note! If you are going to do the same on the balcony, then the question arises - how to insulate the floor with polystyrene foam in this case? In fact, the laying of the material is also carried out on the logs. But in technology there are some nuances.
First lay a layer of foil instead of a film. Then lay the logs, between them mount the foam, and then the second layer of the beams, perpendicular to the first. At the final stage, plywood is spread.