Poppletool

Thanks for the reply JohnMo. I was thinking of lowering the ceiling because of the heat calcs - seems it requires 50% more watts to heat the room with the current pitched ceiling. Would overboarding alone would work as well? Thanks

Howdy. I have a cold north facing office room (2.2m wide by 2.2m long) which has a pitched ceiling thats 3.6m at it's peak. The ceiling has pine cladding and under that is some pastic sheeting then insulation roll. Looking at the heat calcs if I made the ceiling flat (say 2.4m) I would need a lot less heating in the room. If I used an insulated plasterboard with vapour layer would I need ventilation in the void that would created between the old pine ceiling and and the flat roof? Any advice on this would be great thanks