Warming of attic

Even if you do not plan a residential attic, the attic insulation is a necessary measure. Through the unheated attic, not only cold air penetrates the street, but also warm air from the rooms. Thus, the heating costs increase.

Warming of the attic can not be done "through the sleeves"otherwise in cold weather it will still be cold, and in hot weather it will resemble a sauna. In addition, if the attic is poorly insulated, condensation will accumulate on the ceiling of the rooms, mold will appear. Warming of the attic includes the insulation of ramps and attic floor. But first you need to make sure that you have a roof.

Outside, the roof is insulated with heat-insulating slabs. For this purpose, the supporting structure bars needlay a solid foundation of panels, on it to strengthen the insulation boards, and then - paving slabs. It is important to make sure that the load-bearing structures are able to withstand the additional load. From the inside The roof is insulated with fireproof heat insulation boards made of expanded polystyrene.

Before the rafts are insulated, be convinced once again that the roof and rafters do not have cracks, gaps, damages, there are no dark spots on the wood. If there are defects, they must be eliminated before starting the insulation of the attic. It is important to be sure that everything is in order with the roof, its covering and wind insulation.

Then you can start warming the attic. The most popular thermal insulation material for the warming of stingrays is stone or glass mineral wool, although you can produce attic insulationwood-fiber boards or expanded polystyrene. To insulate the slopes of the attic take plates or mats made of mineral wool with a density of 10 to 55 kg / m3. Between a layer of a heater and a roofing covering the ventilated air interlayer should be provided.

Usually, mineral wool plates are thicker than rafter legs. Therefore, to increase the thickness of the rafter feet, you will need to make special padding. The best option is to attach to the rafterlegs perpendicular elements, between which you can place an additional layer of cotton wool. For the manufacture of packings and perpendicular elements take steel or wooden slats, which, like the whole structure of the roof, are impregnated with a protective solution.

Besides, insulation attic necessarily includes a vapor barrier. If you plan to use the attic inas a living room and heat it, it will accumulate water vapor. If the attic ventilation is insufficient, the steam will penetrate into the mineral wool, and this will worsen the thermal insulation. Therefore, when the skate is insulated, an additional layer of vaporizing material must be placed.

Usually for vapor barrier usepolypropylene or polyethylene film, fiberglass or metalized membrane. If you use a mineral veil covered with aluminum foil to insulate the attic, then an additional vapor barrier is not required: aluminum foil will perform this function. Finally, All joints at the junction of the vapor barrier foil must be sealed with an insulating adhesive tape (one- or two-sided). Then you can trim the slopes with plasterboard.

Attic overlap is usually insulated using loose thermal insulation materials. The selected material should be poured betweenbars and level with a bar so that the layer has the same thickness. To insulate the hatch, you need to nail the board along the perimeter of the lid. Then a heat-insulating material is poured onto the hatch and the boards are fixed on top of the roof.

Neglect the warmth of the attic is not worth it, because how warm the attic is, the heat and comfort in the whole house depend.