We're currently doing a garage conversion, bit of a case of some DIY and tradesmans help. Its 103mm single skin walls, no cavity, etc.
We've entirely blackjacked the walls and floor, 3 coats, laid a 1200 gauge DPM to 30cm, now about to start building a timber frame stud wall with Celotex.....have bought these materials....3"x2" treated timber, 50mm GA4050 Celotex and was planning on building a stud wall with Celotex cut into the 600mm gaps.
However, I'm now being told that leaving a 1" void between Celotex and plasterboard is not sufficient, and that it must be 2".
Any ideas, as I read conflicting stories on different sites, some say 1" and others 2".
We've entirely blackjacked the walls and floor, 3 coats, laid a 1200 gauge DPM to 30cm, now about to start building a timber frame stud wall with Celotex.....have bought these materials....3"x2" treated timber, 50mm GA4050 Celotex and was planning on building a stud wall with Celotex cut into the 600mm gaps.
However, I'm now being told that leaving a 1" void between Celotex and plasterboard is not sufficient, and that it must be 2".
Any ideas, as I read conflicting stories on different sites, some say 1" and others 2".