Roger H
Member
- Messages
- 338
- Location
- Northumberland
Hi everyone.
I am attempting to reduce damp ingress into my ground floor, which is effectively a half cellar, but which will be living accommodation. The facts: External 2ft thick stone wall which has a pub beer garden (!) abutting and earth against my wall of 1m plus depth. I've dug a trench to expose my wall (removing buckets of debris from their overflowing u-bend and repairing cracked 110mm clay pipe whose overflow and leakage can't have been helping). My wall is now scraped out and repointed (lime mortar) and I now need to back-fill. Also, I exposed a silted up Victorian field drain a metre down which I have cleared. It runs off to somewhere unknown.
I propose to cap the field drain/channel with slate to keep it permeable. Run some weed suppressing membrane (geo-textile) over the field drain and against the earth wall of the trench. Lay a perforated field drain pipe on top of this, running downslope, but to nowhere specific as yet (future excavation). Place, and this is the question, corrugated plastic roofing sheets against my stone wall in an effort to create a breathable space and allow evaporation from the wall. And then back fill the lot with rubble.
Does this sound right? Any suggestion for a non-biodegradable product that can go against the exterior wall with perhaps more 'give' than the corrugated plastic, yet which still creates an airspace?
Thanks for your thoughts. Roger
I am attempting to reduce damp ingress into my ground floor, which is effectively a half cellar, but which will be living accommodation. The facts: External 2ft thick stone wall which has a pub beer garden (!) abutting and earth against my wall of 1m plus depth. I've dug a trench to expose my wall (removing buckets of debris from their overflowing u-bend and repairing cracked 110mm clay pipe whose overflow and leakage can't have been helping). My wall is now scraped out and repointed (lime mortar) and I now need to back-fill. Also, I exposed a silted up Victorian field drain a metre down which I have cleared. It runs off to somewhere unknown.
I propose to cap the field drain/channel with slate to keep it permeable. Run some weed suppressing membrane (geo-textile) over the field drain and against the earth wall of the trench. Lay a perforated field drain pipe on top of this, running downslope, but to nowhere specific as yet (future excavation). Place, and this is the question, corrugated plastic roofing sheets against my stone wall in an effort to create a breathable space and allow evaporation from the wall. And then back fill the lot with rubble.
Does this sound right? Any suggestion for a non-biodegradable product that can go against the exterior wall with perhaps more 'give' than the corrugated plastic, yet which still creates an airspace?
Thanks for your thoughts. Roger