Bitumen-Schweißbahn auf einem Flachdach verschweißen. G200 S4 S5 PYE | Doppelgarage in Eigenleistung
Paint the old flat roof with roofing paint. Protect the welded membrane and sprinkle it with slat...
DIY photovoltaic installation on a flat roof (garage/carport) using threaded rods. A quick explan...