Breather Membrane or DPM?

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jamie5001
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Breather Membrane or DPM?

Post by jamie5001 » Tue Aug 13, 2019 5:28 pm

Im currently converting my garage into a man cave. Its an outbuilding with single skinned block walls. Im looking at battening straight onto the walls then placing celotex type insulation in between with plasterboard on top. What type of barrier should I stick on to the block before the battens, does it have to be a breather membrane or because there is no cavity can I get away with a plastic DPM?
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