Ton-up
Member
- Messages
- 2,175
- Location
- Essex, England.
I am getting varied answers on this so I thought I'd ask the learned membership on here!
I am building a timber framed building (not for me I'm afraid) which the walls are made of 95mm frame. Starting from inside out, theres a 12mm ply lining, vapour barrier, 70mm celotex, 18mm OSB, membane, battens and cladding.
My question is, the cellotex is pushed up to the inner vapour barrier/ply, but theres a 25mm gap to the OSB so will there be condensation issues or will it be ok? I was thinking it would be fine, but someone said it wont be!
I could put anothe 25mm of polystyrene or PIR but Ive had enough doing this already!
I am building a timber framed building (not for me I'm afraid) which the walls are made of 95mm frame. Starting from inside out, theres a 12mm ply lining, vapour barrier, 70mm celotex, 18mm OSB, membane, battens and cladding.
My question is, the cellotex is pushed up to the inner vapour barrier/ply, but theres a 25mm gap to the OSB so will there be condensation issues or will it be ok? I was thinking it would be fine, but someone said it wont be!
I could put anothe 25mm of polystyrene or PIR but Ive had enough doing this already!