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air brick

Postby westy » Wed Sep 12, 2007 7:59 pm

Does the air brick need to be above or below the damp course membrane ?
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Simply Build It

Postby LCL » Fri Sep 14, 2007 4:21 pm

Given the choice i'd install one below. As a surveyor i see plenty of air bricks above and below DPC's the overiding issue is that there is one. Installing one above the DPC could allow penetrating damp (through the airbrick) to affect ground floor timbers.

Hope this helps.

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