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Polycarbonate Sheet - Choosing, Pricing, Using


Ferdinand

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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

 

LEAN-TO-PLANS-S.thumb.jpg.9aa0f8e4eab319dcc80bc670c0a10bb1.jpg

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Having read this technical document, I am going with 900mm joist spacings for the roof, and 900mm spaced horizontals for the walls - and 10mm 2-ply or 16mm 3-ply polycarbonate depending on price difference.

 

With the roof I am hoing with 6x2 joists between the current since they are only about £15 each, so that I can put a real roof on it should the need ever arise.

 

Ferdinand

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