The roof of the timber

Use the space under the roof of the house provides additional living space, at relatively little cost. This problem is solved with the implementation of the mandatory conditions and special requirements to the construction of a mansard roof during its construction: the requirements for thermal, hydro, wind and parozaschite roof. Roof with a wooden crate, a device which is often practiced by American, Canadian and Scandinavian civil engineering firms are among the best options that satisfy all these requirements. Roof with a wooden frame and crate have other advantages. They correspond to the climatic conditions of northern regions, can be easily and quickly assembled by hand, and fully comply with environmental requirements. Of all the wooden structures of the roof the best option is an option bystrosbornyh complex systems, which is discussed below. Bystrosbornye of sloping roofs with wooden frames include many different elements. Bearing the function of the skeleton, whose type is determined depending on the requirements for the concrete roof. In any case, it is a truss-girder construction. As the base under the roof, performing carrier function and features windscreen, used slabs of compressed wood (OSB). Between the rafters of roof frame fits a continuous layer of insulation directly adjacent to the plates of the board. On the underside of the insulation layer vapor barrier closes the film. This is followed by an internal wooden crate, which carries the plasterboard or other material for finishing interior attic. Upper layers of the roof structure is also composed of many elements. To a plate of pressed wood crate attached outline and the transverse slats of wooden paneling. With increased requirements for energy efficiency is proposed version of the device additional insulation over the top of the crate - on top of crates or additional insulation layer is laid underlying roofing sheet. The final stage of work is the roof covering. Hygroscopic quality compressed wood match the same as an ordinary timber. Excessive humidity densified wood absorbs moisture and swells and dries back to its normal size. These material properties are taken into account the manufacturers of pressed board. To prevent the temperature and moisture deformation plate made by gluing thin layers of wood in the transverse directions. When assembling the elements of the roof in wet conditions, plates do not change their sizes. And the operation of the roof at a time when long maintained high humidity, moisture content of pressed plates does not exceed 12%. But such a moisture content of the elements of the roof sheathing in no way affects the nagelnyh compounds. It should also be noted that the board of pressure-treated wood does not prevent the diffusion of water vapor. Therefore, the application of this technology in the design of the roof helps create an optimum microclimate attic. The noise level in the attic room is reduced due to the fact that the roof sheathing is made from a small number of pressed plates (hence, the number of joints, leaking noise). Besides themselves pressed plate and absorb and reflect sound waves. Only wood paneling with the "underlying" roofing cloth reduces the noise level by 6 dB (2 times). In combination with mineral wool insulation mats and gypsum board roof sheathing to create a design, fully meets the requirements of sound insulation. Longevity of the roof of the wooden elements is achieved by many factors. In particular, the protection of the frame and wood paneling from the effects of microorganisms and fungi is provided by the minimum moisture content in all wooden elements. At the same time, the availability of the required percentage of moisture protects the wood from cracking. It should also be noted that the cladding of wood pressed board acts as an additional element that protects the canvas roof damage. It goes without saying that the durability of the wooden roof is provided and due to the static reliability of its design. In this sense, plays an important role cladding of extruded plates. Cabin accepts the load on the roof and prevents displacement of contour strips crates. Plate shell mounted in such a way that the fibers of wood "lying" is perpendicular to the rafters, which further enhances the static stability of the structure. This contributes to and receive a two-layer stacking slabs of compressed wood, which is not allowed to offset joints plates top and bottom layer of sheathing.