D defrost #1 Member · 109 posts 11 Jan 2015 at 10:55 PM defrost Member 109 posts 11 Jan 2015 at 10:55 PM #1 Hello! I have a conservatory according to this drawing with a polycarbonate roof. I am planning to insulate the roof with 25cm of insulation and lay a proper felt roof. My question is what dimension the primary beam should have?
Hello! I have a conservatory according to this drawing with a polycarbonate roof. I am planning to insulate the roof with 25cm of insulation and lay a proper felt roof. My question is what dimension the primary beam should have?
Mikael_L #2 Member · 56 060 posts 27 Jan 2015 at 7:56 AM Mikael_L Member 56,060 posts 27 Jan 2015 at 7:56 AM #2 But it's already on the drawing? 66x225 L40 ...
