thanks!
ended up installing a vapour barrier over existing plasterboard and joists, battening to required height and using 100mm PIR board. Managed to get from local builders merchants at knockdown price by getting them to match prices found online.
Only regret was that board was too...
hi, apologies for covering well trodden ground, but I can't find a direct answer in previous posts.
I've recently moved into a new build house that has a single ply flat roof supported by king post trusses. There's not much storage space, so we wanted to board part of the loft. I've got...