Roof is the roof of the building of the roof of the surrounding protective structure, which protects the house as little as the wind and rain and the sun and other natural influence. Roofing construction should handle the cold region of the anti snow cold proof and heat insulation, hotter regions of the ventilation and heat insulation and cooling, and do a good job of roof waterproofing and drainage. For special use of the roof, such as Roof garden, roof swimming pool, etc., when the construction should pay attention to meet their use requirements.
The roof of the roof has a common form of roof, roof, roof, and curved roof of various shapes.. Support the roof load of the structure can be below the structure, such as the roof beam, floor, roof truss and steel frame can also be the space structures such as cylindrical shell, suspension and rack. Chinese traditional big roof is a symbol of ancient Chinese architectural features, the most widely used in landscape architecture.