Roof covering plate for extraction of heat energy from solar irradiation, has upper part with opening, where hollow space is formed in roof covering plate by assembling lower part and upper part to roof covering plate

摘要

The roof covering plate (1) has an upper part (3) with an opening (4). A hollow space is formed in the roof covering plate by assembling a lower part (2) and upper part to the roof covering plate. A water guiding device (5) is arranged in hollow space, and the volume of the water guiding device corresponds to the volume of the hollow space. The upper part is made of foamed material, particularly of a heat insulating plastic.