Prefabricated roof with inbuilt solar collectors

摘要

The solar collectors are installed in their frame (2) in-works, the frame formed by vertical rafters (3) so as to form part of the roof. Each frame has two rafters enclosing a vertical prefabricated roof element (4), the two rafters joined into panels by a lower-mounted horizontal crosspiece (5). Rafters and crosspieces are screwed or dowelled to one another and the crosspieces have ventilation slots or are dimensioned to permit ventilation of their own accord. The rafters (2) are vertically grooved (8) to take the collectors and the top edges of the crosspiece lie below those of the rafters and also below the mounting surface of the groove (8). Plywood etc. plates fitted to the top edge of the crosspiece give a closed panel surface, the rafters furnished with ridge and eaves boards. Adjoining rafters have two troughs between (15,16) to take the collectors and also insulating material which is arranged on the top edge of the crosspiece or on the plates placed underneath the solar collectors. Preferred insulation is provided by polyurethane foam.