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Waterproof membrane

Postby Blunda » Sun Sep 28, 2008 7:13 pm

I am about to take the plaster off a wall in my convertion, it is literally just falling off at the moment. I was going to just dab and dob new plasterboard up but it appears to have a waterproof membrane underneath it. I have no idea why it is there as the wall already has a damp course, but it must be up there for a reason. Can anyone advise me what I should use to replace this old damp proof membrane? and how to go about putting plasterboard over the top of it. I am also having issues with uneven joists for the ceiling so I figure its best to get this wall fixed before I level the joists. Any advise much appreciated
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Simply Build It

Postby canny » Sat Oct 25, 2008 7:13 pm

if you have a membrane on th wall you have proberly got a rising damp or damp issue from the past. You can either clean to wall back to the bricks and tank the walls ( paint several coats of bitumin paint) and replaster( remember to throw sand on the last wet coat of bitumin to create a 'key' for the render coat. Or tank the wall and build a stud wall and line with foil back plasterboard (vapour board) and skim ( use treated timbers) Good luck
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Postby TheDoctor5 » Thu Jan 22, 2009 10:58 am

Last year 64% of the questions asked in our forum were answered within our DIY project pages at The project pages are now separated alphabetically and your answers are accompanied by diagrams and the ability to see, and buy, the tools and/or required to complete your project. Use our search box to look for your answer and save a great deal of time and money!
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