load-carrying members
It mainly bears the roof load and transfers it to the wall or column, generally including acorns, purlins, roof trusses or girders. At present, roof truss or cast-in-place reinforced concrete slab is basically used.
Roof covering method
It is the upper covering layer of the roof, and the waterproof material is various tiles and various coating waterproof materials and coiled materials used with tiles. The type of roof depends on the type of tile, such as tile roof, linoleum tile roof, tile-shaped steel plate color tile roof and so on.
ceiling
It is the covering part under the roof, which can make the upper part of the room flat and reflect light to a certain extent, playing the role of insulation and decoration.
Thermal insulation or insulation layer
It can be located on the roof floor or ceiling floor as required.