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 Silicone^Ultra K Finish is a high-performance exterior through-colour textured render based on a hybrid binder system of organically crosslinked nano-quartz particles and silicone emulsion. Silicone^Ultra K finish is a lightweight, water-repellent finish with excellent water vapour permeability. PermaRock Silicone^Ultra K finish incorporates photo-catalytic particles which actively break down dirt particles enabling them to be washed from the surface under normal weathering. PermaRock Silicone^Ultra K-Finish resists aggressive air-borne pollutants and provides enhanced resistance to dirt pick-up. PermaRock Silicone^Ultra K Finish contains a preservative against coating deterioration due to algae and fungus.

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.
PermaRock Silicone^Ultra K-Finish is available in a range of over 500 colour shades with the highest binder stability (Class A resistance to chalking) and colour retention (Group 1 light fastness/colour stability).
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