Plastering & Rendering

What work required to re-decorate damp walls

Anonymous user 03/03/2024 - 3.00 PM

Hello I am considering purchasing a property which has damp walls. They say that they have fixed the root cause of the damp by work on the roof but obviously it will still need redecorating. My questions are, Will a paint job be enough if the root cause was fixed or do we need to re-plaster? Can re-plastering be done one section of wall at a time or does the whole room need doing? If we need to re-plaster would it also be sensible to have any other work done beforehand to prevent damp again as I know it is a common problem in these Victorian terraces? Thanks

Hullbridge Plastering LTD

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Hockley

Hi there, the first thing to do is to make sure the roof was the only thing that was letting water in and not anything else! Secondly, I would hire a dehumidifier this will suck all the moisture out of the room/walls. Thirdly, tap the black/wet areas of the walls if you hear a *hollow* sound then the wall is blown and the area needs to be hacked off and re-plastered. If the walls sound solid a good damp/mould remover should work with a good undercoat paint. You don't need to plaster the whole room only the wet/damaged areas but if the other walls are rough, it's worth doing the whole room! Hope you find a solution soon! Reece RL Plastering.

Answered19 June 2013

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Anonymous user

It is always advised to rip back the plaster to brick then have a dehumidifier on for a few days to dry out the brickwork, the leak/damp has to be fixed first or this will all be a waste of time. Then either reboard or bond the walls then skim to finish. Some people attempt to simply just dry it out first then decorate but most of the time slowly the black mould will show or you may get salt patches still. Maybe worth a go drying it first then give it a paint and see how it goes over weeks/months if the problem persists then do the above mentioned of ripping back to brick and starting from scratch. Gareth at A1 PROPERTY MAINTENANCE (ROTHERHAM)

Answered24 June 2013

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