Corrugated board or profiled sheet is a building material that is intended for roof roofs, as well as for building fences. It is a metal sheet made of galvanized steel using cold rental. The material is given a wave -like or trapezoidal shape, this is done to increase rigidity. The roof roof of the corrugated board requires careful execution of the instructions. Between the sheet itself and thermal insulation, you need to have an air gap of 2-4 centimeters. The profiled sheet must be chosen so that it is no less than the length of the roof slope with the length, it is to increase hydraulic protection properties. The lines of the joints of the material on the slope must be overlapped at least 20 centimeters, and then fill them with a bitumen sealant. Profiled sheets must be placed parallel to the cornice with an overhang of 4 centimeters. Fix corrugated board using self -tapping screws. They should be of high quality, since only these prevent moisture from getting through the holes. You can also fasten with combined rivets, about 6-8 units per square meter. To tighten screws, it is best to use a screwdriver or a drill, they must be screwed perpendicular to the crate, if you do otherwise, this can lead to the occurrence of holes in the roof. In those places where the sheets are adjacent, it is necessary to install the planks. The horse should also be unmistakably fixed to the crate using self -tapping screws, it is necessary to lay the seal between it and the sheets, it will prevent moisture from hitting moisture. If you need to cut the sheets, then this can be done using a conventional circular saw, but only with large cloves. At the end of all the work, all garbage should be removed from the surface, painted the places of cuts and scratches, this stores the material from corrosion. After the expiration of three months, it is necessary to carry out the lifting of self -tapping screws, because they can weaken.
