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Remove plaster when installing new damp proof course?

Question: Why do you have to remove the existing plaster when installing a new damp proof course when the plaster looks in sound condition?

Answer:  Removal of the plaster in necessary as it is likely to contain ground salts such as chlorides and nitrates as a result of the rising damp. The salts are hygroscopic which  means that the have the ability to absorb moisture from the atmosphere so in times of high humidity the walls will continue to appear damp. Replacing the plaster removes this risk and re plastering with a special salt retardant system will prevent any residual salts in the brickwork from migrating into the finish coat plaster after the rising damp has been cured.

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PRE-PURCHASE SURVEY

If you're buying a new home, we can provide an in-depth, pre-purchase damp and timber or wall tie survey.

Please click the link below or call us on 0191 415 9471 for more details.

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WHAT OUR CLIENTS SAY

Don recently did a DPC for a chimney breast in a house I rent to professionals. He agreed to do it between Christmas and New Year, which suited the tenants as they were away. He did the job exactly as planned and very professionally. Don has also done two house refubs for me, so it was no surprise that he did this small job well. My only hesitation in recommending him is that I don't want him to be so busy that he can't do the next job for me!!

Bill Pollard, Framwellgate Moor, December 2015

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