| 摘要 |
PROBLEM TO BE SOLVED: To simply perform execution, and easily apply to various roof structure by setting a rafter on a main house, and having structure for directly attaching roofing material integrally disposing a water passage on the rafter. SOLUTION: A rafter 2 is attached to a main house at an interval of working width of a roofing material 1, which is directly set on the rafter 2, and a water passage 12 is disposed at the rear side of the roofing material 1 whose surface is constituted of metal. In this case, the lower end of the water passage 12 of the roofing material 1 is connected to a distributing pipe 4 set at the side of a ridge, and the upper end is connected to a water collecting pipe 5 attached to the ridge. Thereafter, water is flowed in the distributing pipe 4 by a pump and supplied to the water passage 12. Heat of the roofing material 1 heated by solar ray is transmitted to water in the water passage 12, hot water in the water passage is collected to the water collecting pipe 5, and stored in a heat accumulation water tank. Thereby the roofing material 1 is stuck of a metal surface member and the metal rear face member of the water passage 12 formation, the shape of the surface member is changed, and the various shape roofing material 1 can be easily made. |
