air brick
Posted: Wed Sep 12, 2007 8:59 pm
by westy
Does the air brick need to be above or below the damp course membrane ?
Posted: Fri Sep 14, 2007 5:21 pm
by LCL
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.
LCL
Posted: Thu Jan 22, 2009 10:22 am
by TheDoctor5
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