Rising damp on internal party wall - treatment options
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Duncombe78759
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Rising damp on internal party wall - treatment options

Post by Duncombe78759 » Tue Oct 12, 2021 5:18 pm

Hello,

We've been told that we have rising damp along one of our internal party walls (Victorian terraced house - c.100 years old) - see attached photos taken during recent redecorating.

A few damp specialists have been over and they've all recommended injecting the wall with a DPC paste and getting the affected walls replastered. From what I understand, the DPC paste will block further moisture from rising and the replastering will get rid of contaminated plasterboard which can attract further moisture.

This seems to only stop further moisture from rising, rather than treating the actual source of the issue though - is this typical treatment for rising damp? Are there other options which would more effectively target the actual source of the problem?
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stoneyboy
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Re: Rising damp on internal party wall - treatment options

Post by stoneyboy » Wed Oct 13, 2021 9:19 pm

Hi duncombe78759
Forming a DPC by injecting chemicals is the norm.
The success of this method will depend on the integrity of the wall how thick it is and how lucky the operator is in injecting in the right place.
Unless your neighbour has the same process applied to their side of the wall the damp may not be cured.
Regards S

DIY_Guy
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Re: Rising damp on internal party wall - treatment options

Post by DIY_Guy » Sat Oct 30, 2021 10:57 am

Please please don't ever go to a 'damp specialist'. That industry is unregulated and have no idea what they are doing. Leave heritage properties to qualified heritage RICS surveyors. There will be an underlying reason for that damp and injecting the wall will do nothing (same for any other method). I live in a village where the youngest house is about 100 years old and I guarantee you no-one would go near a 'damp specialist' with a barge pole. Get a damp survey from a qualified heritage RICS surveyor who spend their entire lives surveying older properties. You will probably find the issue to be fairly trivial and cheap to remedy.

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