We have a flat roof of approx. 4 x 2.5m, for which we plan next year to convert to a pitched roof with rockwool insulation.
But until then, I have thought about covering the roof externally (like a warm deck system) with 75mm poly boarding, and then covered with normal flatroof stones to hold down the boards.
About £60 to do the roof.
http://www.diy.com/diy/jsp/bq/nav.j...efview=lister&ts=1294157748280&isSearch=false
As a temporary solution until next year, surely it will make the room a bit warmer?
But until then, I have thought about covering the roof externally (like a warm deck system) with 75mm poly boarding, and then covered with normal flatroof stones to hold down the boards.
About £60 to do the roof.
http://www.diy.com/diy/jsp/bq/nav.j...efview=lister&ts=1294157748280&isSearch=false
As a temporary solution until next year, surely it will make the room a bit warmer?