Roofing unit comprising photovoltaic unit or transparent unit for replacing existing roof tiles

摘要

The roofing unit may be a photovoltaic unit or a completely or partially transparent unit and can be any size to replace roof tiles etc. The roof tiles replaced may be any shape, apart from the flat tile Terra Pitta made by Pfleiderer and the Tegalit Novo by Brass. The in-roof photovoltaic units are provided with a water-tight seal against the adjacent tiles. An Independent claim is included for the use of the roofing unit to form a photovoltaic system comprising several photovoltaic units.