Replastering, the final stage of the process.
It should be noted that the replastering is as important as the insertion of the damp-proof course (DPC) and care must be exercised when carrying out the works.
High levels of contaminant hygroscopic salts can build up in both the old plaster/underlying masonry over many years of active rising dampness. Even though the DPC is effective the hygroscopic nature of the salts may cause moisture to be attracted to the wall so causing further dampness, decorative spoiling, and giving the impression that the DPC has not been successful.
Removal of the old contaminated plasterwork will remove the contamination at the surface but underlying contamination may pass into new works unless it is designed to be resistant to the passage of residual moisture and these contaminant salts.
The design function of the new plasterwork must therefore be twofold:
It is important that the following specification is strictly adhered to. Please ensure that the plasterer understands its importance.
Important Points to Note:
We cannot stress the importance of plastering strictly in accordance with the specification and it is essential that the plasterer realises the implications should this specification not be strictly adhered to. Experience has shown that whilst the DPC may be fully effective and no action has been taken to prevent the migration of hygroscopic salts reaching the new plasterwork, then problems do exist, often resulting in a situation where the property visually appears to be no drier than prior to the work being carried out. It is therefore essential to make sure all recommendations, as stated in the contractors report and recommended by Mr Salt Damp are strictly adhered to.
How do I know if I have Rising Damp?
Our products and services are specifically designed for the treatment of Rising Damp, so it is important to be certain that this is the cause of dampness before treatment begins.
Other types of dampness that affect buildings (e.g. condensation, lateral damp, penetrating damp) are treated in different ways - freecall us on 1300 793 359 for advice.
Diagnosis of dampness in buildings should be carried out by a specialist surveyor with a Moisture Meter, however, typical signs of Rising Damp include:
If you would like to arrange for a specialist surveyor to visit your property, please visit the contact page or phone 1300 793 359.