Okay so we have a problem wall in our house (mid 40’s) where there’s a solid 9” parapet wall.
It’s always been damp through winter. And turns out the drain nearby is knackered - this will be excavated and replaced soon.
One issue is no DPC on a concrete step / threshold. We’ve dug out the original step, put in some DPM and then relayed bricks which we hope will limit damp ingress (i think there’ll always be some)
My main question is - should I be hacking back original render a bit and liming the bottom of the walls behind skirting? The original double slate is in line with the floor level - image attached!
Another issue is that we have a concrete door portal around the door which is super porous and just dumps moisture in to the walls - hence taking out original concrete step and trying to isolate with DPM. Can show some images if that helps too - but my thinking is liming the bottom of the wall may help wick moisture away from the concrete portal ?
Edit - the original render seems to be a concrete / lime mix. Fizzes in vinegar but is deffo full of portland
It’s always been damp through winter. And turns out the drain nearby is knackered - this will be excavated and replaced soon.
One issue is no DPC on a concrete step / threshold. We’ve dug out the original step, put in some DPM and then relayed bricks which we hope will limit damp ingress (i think there’ll always be some)
My main question is - should I be hacking back original render a bit and liming the bottom of the walls behind skirting? The original double slate is in line with the floor level - image attached!
Another issue is that we have a concrete door portal around the door which is super porous and just dumps moisture in to the walls - hence taking out original concrete step and trying to isolate with DPM. Can show some images if that helps too - but my thinking is liming the bottom of the wall may help wick moisture away from the concrete portal ?
Edit - the original render seems to be a concrete / lime mix. Fizzes in vinegar but is deffo full of portland