Hi,
I am building a block based timber framed upper in my garden. It will be an insulated (composite) flat roof.
I have finished the roofing timbers and am just about to put on the OSB 3.
All of the guides say install it with the writing uppermost to the elements. Mine has no writing apart from some small print and a sticker (it's from Wickes).
Also do I need to put a membrane or vapour barrier between the roof joists and the roofing OSB?
It will be finished in fibreglass or similar.
I am building a block based timber framed upper in my garden. It will be an insulated (composite) flat roof.
I have finished the roofing timbers and am just about to put on the OSB 3.
All of the guides say install it with the writing uppermost to the elements. Mine has no writing apart from some small print and a sticker (it's from Wickes).
Also do I need to put a membrane or vapour barrier between the roof joists and the roofing OSB?
It will be finished in fibreglass or similar.
