At construction of the house or repair of roof you can face problem of calculation of roof. It is possible to entrust calculation of materials to the experts selling you roof, and it is possible to count roof. For this purpose it is necessary to know several subtleties.
Instruction
Before counting roof for roof, it is necessary to be defined from what material it will be. Roofs can be from slate, bituminous corrugated sheets, flexible tile and professional leaf. Most often in roofs of owner-occupied dwellings the pro-thinned-out leaf (professional flooring) is used. Upon purchase of roofing material it is better not to save, choosing the cheapest of the offered materials. Cheap materials serve less.
After you have chosen material for roof, we start calculations. In the beginning it is necessary to decide on the basic geometrical sizes of future roof. For this purpose draw the plan of roof. Surely place the sizes: length, width, corner of slope of roof and also length of the fad, length of all edges, eaves and valley gutters. The valley gutter - the internal corner formed by roof surface.
Then it is necessary to count the areas of each of surface of roof and to put them among themselves. Thus we receive the total area of roof. After that it is necessary to specify at the seller the useful area of roofing material taking into account overlaps.
After that the area of roof needs to be separated into the useful area of the used material. As a result the digit designating the required quantity of roof for purchase will turn out.
Doborny elements are considered depending on type of roof and fastenings. Their cost can sometimes exceed the cost of the most roofing material. Therefore it is necessary to approach calculation of elements with special responsibility. It is better to entrust such work to the expert.