Renderguard Gold is a high-specification plaster additive that forms an integral part of the Safeguard Damp-proofing System.
Correct re-plastering is of the utmost importance after installing a remedial damp-proof course (using Dryzone damp-proofing cream or Dampcheck Plus). Even though the damp-proof course is effective, hygroscopic salts introduced by the rising damp may cause moisture to be attracted to the wall. This causes further dampness and decorative spoiling, giving the impression that the damp-proof course has not been successful. It is for this reason that re-plastering following the installation of a remedial damp-proof course must perform two functions:
* It must prevent the passage of residual moisture from reaching the decorative surface during the drying process.
* It must prevent the passage of hygroscopic salts from the underlying masonry to the new decorative surface to prevent further spoiling.
When used as an additive to a 3:1 sand-cement render, Renderguard Gold will fulfil these requirements provided that the specification is strictly adhered to.
Where using a hard sand/cement render is not desirable, another option is to cover the wall using Oldroyd P Plaster Membrane. This allows a wider range of plasters to be used.
Economical – 25 litres of concentrate makes 625 litres ready for use.
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