DIY Doctor UK DIY Forums

i need help.....
can somebody adivse me please... we are doing a loft room, i know there is a certain gap needed between roof and platerboard but in waht order and what size.... eg: roof-space-insulation-plasterboard or roof-insulation-space then pasterboard????? and also is the (space) 25mm or 30mm? thank you xxxx

perrymanrus
roof-space-insulation-plasterboard and increase the gap to 50mm.
end

thank you :D
not that im checking up on my builder.... but it nice to know, i know what im talking about when consulting him.