Can I use Polythene Vapour Barrier
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of building paper before I put down insulation in the loft (only has 5mm of foam beads at present and no ventilaton)building paper v Polythene Vapour Barrier
Jan 15, 2012
3 Replies
Site's frozen.
very roughly equivalent to around 3mm solid insulation, which does make a useful difference. But nowhere remotely near enough by modern standards.
NT
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