Skylux 160° CE met koepel en polyester opstand 30 20 met dubbele LM motor en windvang 1300 x 2800 mm KKB HHOH 0900 1500 Installing an electric roof access Installing an electric roof access skylight with 30 20 PVC curb 700 x 2000 mm Please note Where wooden structures can shrink 90 73 63 20 Double walled Opal (A D) 2 17 49 59 Heatstop PC Double walled Clear (T H) 2