• Control dampness & salt migration
  • Breathable - allow walls to dry naturally
  • Compliant with BS EN 998-1:2010

For more information call
01403 210204

Dryzone Renovation Plasters

Standards & Accreditations

BS EN 998-1:2010 Renovation Plaster

 

Dryzone Renovation Plasters are a range of breathable modern plasters that are designed to stop salt migration and aid drying on damp walls. All three variants in the plaster range have been scientifically developed and tested to provide excellent resistance to hygroscopic salts whilst providing a highly breathable surface. They have been shown to out-perform both competing renovation plasters and sand/cement renders.

The plasters are most commonly used as part of the Dryzone System for replastering after Dryrod Damp-Proofing Rods have been used to create a remedial DPC against rising damp. They are also ideal for use in other situations where residual damp will be present, such as after treatment for penetrating damp or as part of a flood repair project.

For projects that need to start redecoration as soon as possible, Dryzone Express Replastering System should be considered. This is a hybrid plasterboard system that can treat walls affected by rising damp and prepare them for redecoration in under 24 hours.

Control Dampness & Salt Migration

Standard gypsum plasters soak up residual moisture left in the wall. Any salts in the wall migrate to the surface and break down the plaster. This will not only spoil the decorating surface but can also result in the structure of the plaster being permanently weakened.

The porous structure of Dryzone Renovation Plasters allows walls to breathe and dry down naturally without allowing salt and moisture to migrate to the surface or damage the plaster’s structural integrity.

Application

These instructions are an overview of the application process. Full application instructions for all Dryzone Renovation Plaster variants can be found in the downloads tab.

  1. Insert the Dryrods into the holes
    Treat the rising damp using Dryrod Damp-Proofing Rods.
  2. Apply a rough coat of plaster to the wall
    Apply the first coat of Dryzone Renovation Plaster as a rough coat at approximately 5 – 10 mm thickness.
  3. Apply the second coat of plaster to the wall
    Once the rough coat is sufficiently firm, apply the second coat of Dryzone Renovation Plaster at approximately 10 – 15 mm thickness. The total thickness of both coats combined should be at least 20 mm.
  4. Once the Dryzone Renovation Plaster coats are sufficiently dry, apply a standard skim coat and/or redecorate as per standard decorating procedure.

The Range

Dryzone Damp-Resistant Plaster Properties

[1] Applied in two coats of different thicknesses. See the ‘Application Information’ section on the technical datasheet for full details.

Appearance Off-white powder
Size(s) & Packaging 23 kg bags
Coverage [1] 1 bag covers 1 m2 (at 20 mm thickness)
Thermal Conductivity 0.3 W/mK
Reaction to Fire Class A1
Breathability µ ≤ 15
Bond Strength ≥ 0.3 N/mm2
Storage The products must be stored in a dry place
Shelf Life 6 months in unopened packaging
Compressive Strength CS II

Dryzone Hi-Lime Renovation Plaster Properties

[2] Applied in two coats of different thicknesses. See the ‘Application Information’ section on the technical datasheet for full details.

Appearance Off-white powder
Size(s) & Packaging 20 kg bags
Coverage [2] 1 bag covers 0.8 m2
Thermal Conductivity 0.4 W/mK
Reaction to Fire Class A1
Breathability µ ≤ 15
Bond Strength ≥ 0.1 N/mm2
Storage The products must be stored in a dry place
Shelf Life 2 years in unopened packaging
Compressive Strength CS II

Dryzone Damp-Resistant Plaster Fast-Set Formula Properties

[3] Applied in two coats of different thicknesses. See the ‘Application Information’ section on the technical datasheet for full details.

Appearance Grey powder
Size(s) & Packaging 20 kg bags
Coverage [3] 1 m2 per bag (at 20 mm thickness)
Thermal Conductivity 0.6 W/mK
Reaction to Fire Class A1
Breathability µ ≤ 15
Bond Strength ≥ 0.2 N/mm2
Storage The products must be stored in a dry place
Shelf Life 12 months in unopened packaging
Compressive Strength CS IV

For more information call
01403 210204