hi all , i have searched about this issue but am still not clear on a true answer !
so, i have built walls for my cony upto dpc level, to match existing house dpc. where the cony meets the existing house wall (now internal) i was going to lap the dpm up the wall to just above dpc, then when concrete is set, and floor is screeded just trim it to level of dpc, that way damp could not bridge over the existing dpc ?
or does this not matter and i could lap dpm further up past the dpc and make floor level higher ? surely this would in theory allow a pathway for damp to rise past it ?
thanks.
so, i have built walls for my cony upto dpc level, to match existing house dpc. where the cony meets the existing house wall (now internal) i was going to lap the dpm up the wall to just above dpc, then when concrete is set, and floor is screeded just trim it to level of dpc, that way damp could not bridge over the existing dpc ?
or does this not matter and i could lap dpm further up past the dpc and make floor level higher ? surely this would in theory allow a pathway for damp to rise past it ?
thanks.