Hello all,
I'm making a porch roof, it'll be about 3' deep and about 5' - 6' long with a wooden bracket structure to support it. The roof is flat ?polycarbonate sheet from Been and Queued; my worry is that thermal expansion of this sheet may damage the joints of the brackets and supporting longitudinal beams, should I improvise some sort of sliding mounting points? It seems to me that slots for the fixing screws wouldn't be adequately waterproof; I could glue some mounting slots on the underside to engage with hooks on the beams, or I could just not worry.
Your thoughts would be appreciated...
Regards Ant
- ps - Don't let the EU rule Britannia! *