i have posted elsewhere about a leanto I am currently building (think roughly an enclosed carport).
I may be using multi-ply polycarbonate sheet for cladding the roof and walls.
My question is where does the sweet spot lie in terms of:
1 - Noise transmission eg from rain.
2 - Ability of different thicknesses to span across joists and posts. At present I have joists at 1.8m centres spanning 2.5m-3.5m across the leanto to a wallplate. I can easily add a lighter intermediate structure.
3 - Price for different thicknesses of sheet.
I expect that 2-ply (10mm) or 3-ply (16mm) will be the thickness I need, but I would be glad to hear of any experiences. The sketch plan and elevations are below.
Thanks
Ferdinand