When the foundation is laid, and the walls are erected, it's time to start building the roof. The classic duplex design is one of the most common in modern low-rise construction. Such popularity is due to the relative simplicity of erection and minimum consumption of building materials. A separate advantage of a duple roof is the possibility of using an attic space for living room arrangement ( mansardi) or storeroom for storing seasonal things.
1
Mounting Mauerlat. The construction of the double roof begins with styling and fixing the Maurolalat - a massive wooden bar, which serves as the lower support for the rafter design. For starters around the perimeter of the main and intermediate walls of the facilities, there is a double layer of rubberoid - such waterproofing reliably protects the wood from rotting. Next, Maurylalat is laid on top of the runneroid and fixed with the help of pre-laminated construction spills - metal rods with threads - and nuts.
2
Preparation of rafters. Traditionally, for the construction of the rafter system, a high-quality wooden bar is used without cracks and bitch (thickness and length of the material directly depends on the size of the roofing sweep). For convenience, the assembly and subsequent installation make an auxiliary template according to which the farms are prepared (triangular sections mounted from a pair of rafting legs) and join all elements of the rafter design. Making such a template is easy - two boards rise to the roof and modify the rafter, at the upper point, the formed triangle is fastened with nails, and in the middle-reiguel (transverse crossbar).
3
Construction of the rafter design. First of all, the extreme (frontal) rafters are mounted, then between them stretch the twine along the line of the skate and install the rest. The optimal step between farms is 1.1-1.3 m. For mounting rafters with Mauerlat in bars, rectangular cutters are made. To eliminate the stabbing, the middle sections are reinforced with disconse or retaining beams. For fixing, metal staples, stamped corners, nail plates and brackets are used for fixing the pairing nodes.
An important nuance! Upon completion of the fastening of the rafter with the help of a construction plumb, the correctness of the execution of the frontones is checked - naturally, they must be strictly vertical.
4
Laying waterproofing. To protect the roof from the penetration of moisture, the hydrobarrier, for example, a polymer membrane is mounted on top of the installed rafting beams. The material is placed in the direction of the bottom up with the allen at 20-25 cm. For fixing, thin wooden rails are used, they are attached along the length of the rafted. Thanks to such a draft counterclaim, the air interval required for the full ventilation of the roofing material is created.
5
Assembling clamps. Next, perpendicular to the roll frame mounted the main crate - solid or sparse. The solid is ideal for flooring soft or rolled roofing materials (pergamine, only soft tiles), sparse - for rigid (flat / wavy slate, metal and ceramic tile).
6
Laying thermal insulation material. For the arrangement of thermal insulation, various insulating materials are used - from minvati and foamed glass to polystyrene foam. The insulation is placed closely between the rafter beams, the vapor barrier film and windproof are laid over it. All joints are carefully sampled with reinforced tape and fasten with wooden slats.
7
Installation of roofing. The finishing stage of the construction of the roof is the laying of the roof. The list of the most popular leads materials such as bitumen and metal tiles, Ondulin and the usual asbestos-cement slate. Regardless of the selected coating, the roof is mounted exceptionally from the bottom up - from Mauerlat to the ski beam.
Construction of a duplex roof - the task is simple, but rather responsible. Errors and crosslides in the construction of roofing structures can turn into additional costs and the short difference of the entire structure.
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