Door cavity reveal, bridged, not closed

[bobasd]

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?

 

[martysmarty]

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?

Thanks for that info, i will check that out when i get the flooring up. I am expecting to have to add some venting.

Sorry, slate line i should of just said outsise dpc line. Ours is the old slate way, some slate is visible fom outside and some is mortard (pointed) over. What is the correct way? I am guessing pointed just because most old houses i see have neatly pointed over dpc. If its slate.

 

[bobasd]

render or pointing shouldn't bridge the DPC.
its more important with a solid wall but still needed in a cav wall because of blocked an bridgin cavities

 

[martysmarty]

render or pointing shouldn't bridge the DPC

Makes sense that it shouldnt be. I have seen so many houses done like it though. I guess that doesnt make it right either!