High-performance, lightweight external wall insulation (EWI) system based on enhanced expanded polystyrene (EPS) insulation that incorporates microscopic particles of graphite for enhanced thermal performance and to dissipate heat.

Permarock Dry Dash provides a tough, durable, long-lasting and cost-effective finish for use with Permarock EWI and PermaRend and Permarock exterior render systems.

Permarock Dry Dash comprises pre-washed and screened Dashing Aggregates which incorporate different types and colours of stones that are blended together and applied onto a specially formulated, self-coloured, polymer-enriched mineral-cement dash receiver, Permarock Dashing Mortar (DM), which provides enhanced performance over traditional sand/cement renders.

Permarock Dashing Mortar is a factory-batched, pre-coloured, dry-powder premix which requires mixing with water on site. It is available in a range of standard colours; Grey, White, Yellow, Cream, Red and Pink. For other colours please contact Permarock.

Features and benefits:

Lightweight.
For buildings up to 11 m in height.
Suitable for all exposure conditions.
High thermal performance insulation.
PAS 2035 compliant.
Insulation thickness 20–300 mm.
Low air permeability. Can assist in improving airtightness.
Adhesively bonded and mechanically fixed insulation.
High wind load resistance.
Thermal conductivity: 0.030 W/m·K.
BRE Global Certification 158/12.

Design considerations:

Thermal calculations can be carried out for each project to help to determine the thickness of insulation required to achieve U-value requirements.

Beads/ Trims/ Profiles:

A full range of beads, trims, sealing tapes, expansion joint tapes and window sealing strips (APU beads) is available to complete the design of the system.

BRE: Global Certification 158/12