damp proofing replastering plastering

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If your property has had a rising damp or penetrating damp problem, it is essential that the correct plastering materials are used after the damp treatment to prevent future damage to internal decorations.

After a procedure of damp treatment, plaster often needs to be renewed because of contamination with hygroscopic salts. When this is the case, it is vital that a special salt retardant additive is used. This additive is used to hold back any residual salts while still allowing walls to breathe (i.e. allowing the passage of water vapour).

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Why should standard plastering not be used?

Standard plasters, such as Carlite, should not be used after a damp treatment as they cannot prevent the migration of hygroscopic salts. Failure to apply a salt retardant plaster after treatment is the most common cause of continuing damp problems after a remedial damp proof course has been installed.

Replastering - the Peter Cox way

It goes without saying that Peter Cox always recommend using a salt retardant plaster when replastering.

We also recommend that any replastering done internally is completed with a skim finish giving no visual differences to existing plastering. Where there are steps in floor level, we recommend applying a waterproof slurry coat to prevent moisture ingress through masonry below the level of the remedial damp proof course.


Recommend Method for Salt Retardant Plasting

The above image illustrates the recommend method for salt retardant plastering.

If you want to speak to damp proofing professionals about replastering after damp treatment our expert team can be reached on 0800 633 5712 or use our online contact form and we can get back to you.


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