PRE-STRESSED ENERGY-SAVING LIGHT ROOF BOARD

The utility model discloses a prestress light energy-saving roof board which has multiple functions of weight bearing and heat preservation and is composed of heat-insulating materials (2) between a bottom layer (1) of the prestress reinforced concrete and a surface layer (3) of the reinforced concrete. The utility model is used for the roof of the civil construction and the public construction, and the applicable range is wide. The heat preservation function and the energy-saving effect can be regulated by the heat-insulating materials with different materials and different thicknesses according to the requirement. The heat preservation measure can be omitted in the construction of the roof by using the prestress light energy-saving roof board. One fourth to one third working hours for the construction of the roof can be saved. Additionally, fewer funds can be used for producing the new product for the structural component factory, and consequently the obvious economical benefit is brought for the manufacturer.