Hi
Looking into getting some insulated plasterboard (need Celotex GD5040 to get my uvalue) but can only seem to get in packs of 22.
I need only 9 sheets so would prefer to not pay the extra, is it possible to literally used 40mm celotex and fix plasterboard over the top or am i missing something important?
How do you fix this to rafters? (it is for a sloping roof on 1st floor bedroom)
Many thanks in advance
Looking into getting some insulated plasterboard (need Celotex GD5040 to get my uvalue) but can only seem to get in packs of 22.
I need only 9 sheets so would prefer to not pay the extra, is it possible to literally used 40mm celotex and fix plasterboard over the top or am i missing something important?
How do you fix this to rafters? (it is for a sloping roof on 1st floor bedroom)
Many thanks in advance