Warmwall are specialist plastering contractors who are experienced in damp proofing and making sure their work is completed to the highest standard. So, why should you consider replastering after rising damp treatment.
Replastering follow the insertion of a damp-proof course
Important: It should be noted that the replastering is as important as the insertion of the damp-proof course 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 damp-proof course is effective the hygroscopic nature of the salts may cause moisture to be attracted to the wall so causing further rising dampness, decorative spoiling and giving the impression that the damp-proof course 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 must prevent the passage of residual moisture reaching the decorative surface during the drying process which can take some considerable time as well as control the limitations of the injection system itself.
- It must prevent the passage of hygroscopic salts from the underlying masonry to the new decorative surface to prevent further spoiling.