Any building should be protected by a roof from rain, snow, wind, etc. Roofing as a roof component just performs this protective function.
The roof of the house is a single -sided or gable. And another variety is a hip roof that has a slope of water from four sides. The four -huel hip roof has end rafters that go from the skate of the inner rafters to the walls of the house. A half -wool four -sloping roof with end rafters, which are attached to the bearing beam and reach the walls of the house.