the correct dtail in cavity walls is for the airbricks to sit on the DPC in the outer cavity wall, an for the joist tails to sit on the inner wall DPC.
air bricks should be installed at max. 2000mm centres an about 400mm from corners.
sub-floor knee walls should be honeycombed.
this provides through ventilation which protects the suspended floor woodwork from damp rot.
what slate lines are you talkin about?
air bricks should be installed at max. 2000mm centres an about 400mm from corners.
sub-floor knee walls should be honeycombed.
this provides through ventilation which protects the suspended floor woodwork from damp rot.
what slate lines are you talkin about?