Green Building Forum - Insulation Fri, 14 Aug 2026 22:43:34 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Insulation https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8894#Comment_8894 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8894#Comment_8894 Mon, 05 Nov 2007 19:08:38 +0000 Rogerward
For insulation I wish to put Rockwool flexi slabs between the rafters, covered by plasterboard. I am concerned about interstitial condensation. Should I put a non-porous membrane such as polythene between the rafters and the plasterboard, or does the whole idea risk damp attack to the rafters?

Comments would be very welcome.]]> Insulation https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8896#Comment_8896 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8896#Comment_8896 Mon, 05 Nov 2007 19:43:50 +0000 Nick Parsons
Nick]]> Insulation https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8907#Comment_8907 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8907#Comment_8907 Mon, 05 Nov 2007 23:04:24 +0000 tony Insulation https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8987#Comment_8987 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=828&Focus=8987#Comment_8987 Tue, 06 Nov 2007 23:16:17 +0000 Rogerward