Making a dual slope roof
The advantage of a dual roof is the simplicity of the device, as well as a large variety of roofing materials that are suitable for this type of construction. In addition, dual-slope roofs are suitable for attic space. In this article, an example of a gable roof for an apartment house will be considered. The manufacture of a roof begins with a Mauerlat. This is a timber with an approximate section of 12x12 cm, which is simply placed on the edge of the brickwork. Pre-Mauerlatt must be cut with a roofing felt on both sides (the side of the beam on which it lies and the outside facing the street). In the corners, the power plate is fastened together. There are two types of manufacturing a dual-slope roof. The first type - all structural elements are assembled directly on the roof. The second option - the farms are collected on the ground, after which they climb to the roof and are set by level. The second option is faster, since it is easier to assemble the structure on the ground.In addition, making the farm on the ground, it is easier to make them the same. So, first we are going to the first farm, which will exactly match the design of the roof. Here it is important to take into account all the dimensions and angle of the slope, since the first truss will be a template for subsequent trusses. After the first farm is ready, rafters are put on its level, the same angle of the ramp is cut, and bolts (3 pieces) are fastened on the level of the first farm. For crossbars used board thickness of 30 mm. These elements are installed at a distance of 30 cm from each other. It is possible to collect farms with the help of nails, or screws. Although the timber for rafters can be of different widths, the most important thing is that all the farms are on the same level on the outside. The tolerance for deviations is 2 cm.After all the farms are assembled, they must be raised to the roof for I am installing. First you need to fasten the two extreme farms, then pull the line.Thus, the line becomes the level at which subsequent farms are set. So that the wind does not tear the trusses, temporary mounts to the floor are used, as well as to each other. In addition, it is required to fasten trusses of trusses with a mauerlat using a long nail or a self-tapping screw.The next stage is fixing the crate. Deviations from the batten depend on the material with which the roof will be covered.A standard version is offered in the sample - the crate is 80 cm above and below. The rest of the boards are mounted 40 cm apart from each other. In this case, according to the project, the length of the rafters should be 6.5 m. However, the beams that were bought for the rafters had a length of 6 m. Therefore, at the edges of the rafters, 70 cm fillets were affixed. A 30 mm board was used for the fillets.
Once the trusses are installed, you must additionally secure the power plate. For this, the mason makes the laying on the inside of the wall, closing the mauerlat. The laying passes between rafters, thereby strengthening farms. In addition, it is necessary to tighten each second farm. This requires a wire, as well as an anchor, which are installed at a distance of at least 30 cm from the rafters. Then it is necessary to wind the rafters with the installed anchors and to tighten it well.
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