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Is tanking the best way to resolve damp issues in my conservatory?

Posted by Andrew , on Fri 02 Mar 2018 05:48pm

My conservatory has suffered from what I believe to be rising damp for a while. I have previously had builders install lead flashing where the conservatory roof meets the wall of the house, and wash the exterior walls of the house and conservatory with a waterproofer / sealant. Despite this the issues have persisted. I recently had a different builder visit, who suggested that I needed tanking. I hadn't come across this before, so would be keen to know if this is likely to clear up my damp issues? I've done some research on Google, and don't know whether using a membrane and boarding over it would reduce the available space in the room? Having had sealant applied to my exterior walls, with seemingly limited success, so am not sure whether tanking slurry is the best answer? Any advice on this is appreciated.

stewart killick

Wed 07 Mar 2018 07:52pm

If it’s definitely rising damp coming up from the ground where the original damp course has failed, you can install a chemical damp course. There are plenty of companies that do this or it’s a reasonably easy diy procedure for a competent diy er. It basically involves drilling holes and using a sealant gun to fill the holes with the chemical damp course which then spreads and forms a new damp course. There are plenty of videos on YouTube on how it’s done

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