Damp Proofing Question

Do i use permaseal damp proof paint under a render?

I've just bought an old cottage that requires quite a bit of work including some damp proofing. After several (expensive) quotes I thought I'd investigate myself. After hacking off the render back to the original stonework the walls look pretty good and are mostly dry apart from a few areas that do show bad quality old pointing with obvious damp issues.
My question is; could I use a Permaseal type damp paint to act as a barrier on the original stone and then render and plaster over it or is there a better method?

1 Answer

Best Answer

No!

If the stonework is dry why does it need "damp proofing"? Was the plaster contaminated? Is it pointing in the stonework allowing penetration dampness? Was the plaster a cement based product or lime based? You need to analyse a myriad of things before carrying out carte blanche recommendations.

Answered 30th Apr 2013

JW Surveys

Member since 11 Jan 2013

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