How to warm the attic

Significant thermal losses are characteristic of the attic room compared to other floors of the structure, which is explained by the greater area of \u200b\u200bcontact with the street. There are certain requirements, the execution of which allows to ensure the effective insulation of the attic.

For year-round use of the upper floor, heat protection of roofing rods, frontones and parts of the overlapping are used. The structure consists of several layers located consistently, starting from the inside:

Parosolation is a film that prevents the penetration of moisture from the room, for example, "stroke";
Heat insulation - slab or rolled mineral wool, fiberglass or polystyrene;
Ventilation clearance - needed to derive moisture from the underpants;
Waterproofing - protection of insulation material from wetting.

With the insulation of the attic from the inside, it is often impossible to fulfill the counterclaim, then the waterproofing layer is replaced by a membrane with high vapor permeability that allows laying directly on the surface of the insulation, for example, "Izospan am" or isover.

When selecting a suitable insulation, the following factors are taken into account:

The heat transfer coefficient - the thickness of the material differs for different regions depends on it, it is calculated using online calculators. for polystyrene or for mineral wool;
The distance between the rafyles - affects the dimension and methods of fixing;
Outdoor or internal insulation - the insulation of the finished room is performed from the inside, and during the new construction, it is possible to place thermal insulation on top of the construction.

Internal insulation begins with a status check stropile farm, wood processing with antiseptic or metal coating with primer. The next step is the installation of the diffusion membrane, fixable by brackets or nails. The overlying cloth is overlapped to the underlying minimum per 100 mm, and their connection occurs with an adhesive tape. The provisis of the film should not exceed 20 mm, and excessive tension of the canvas is also not allowed.

The mattes of the insulation are unpacked, it will take 15-20 minutes to restore their nominal dimensions. The thermal insulation is mounted by "Mrosusor" between the rapid legs, in the case of a non-standard steps of the beam, the material is cut in size. With a two-layer arrangement, the gleaming is performed with the displacement of the joints by 200-300 mm. It is important to control the tight pairing of the insulation with the bars and the same thickness of thermal insulation. Parosolation sticks to the lower plane of the rafter feet. The final fastening of the film is carried out by covering the ceiling of the attic room.

Any insulation has advantages and disadvantages affecting the choice:

Polyfoam - inexpensive material, but fragile and badly spending steam;
Mineral wool and glass gamble - convenient in work, democratic in price, require competent protection against steam;
Polystyrene foam - suitable for mounting over rafted with a mandatory ventilation gap;
Polyurethane Foolder - applied with spraying, creates a monolithic layer, which does not need vaporizolation, an expensive way due to special equipment;
Equata - also sprayed material, the properties are approaching wood, the solid surface from the inside is closed by vapor insulation;
Metallized materials - in addition to insulation, also reflect heat.

The proper insulation of the attic decreases heating costs, forms a favorable climate of the house, and also extends the service life of the structure.