EXTERNAL WALL INSULATION SYSTEMS /
EPS SYSTEM
The PermaRock EPS system is a fully developed external wall insulation system with optimal insulation against heat loss. It is based on expanded polystyrene (EPS) insulating panels that are pre-aged and flame retardant and which are available in a range of thicknesses to achieve the required level of thermal performance.
Depending on the substrate, the PermaRock EPS system can be installed by adhesive only, by mechanically fixing only or by a combination of adhesive and mechanical fixings.
The PermaRock EPS system is designed for use on all forms of construction including timber and metal frame walls as well as on brick, dense and no-fines concrete, and thermal blockwork.
The system is equally suitable for new buildings and for refurbishment or remodelling of existing buildings. The low density of the system makes it especially suitable for situations where low imposed loads are critical.
The PermaRock EPS System offers a number of key advantages:
- Lightweight, low density insulation in thicknesses from 20 mm to suit individual project requirements.
- Low thermal conductivity insulation: 0.038 W/mK (BS EN 13163)
- Very flat surfaces readily achieved.
- Fully accredited through BRE-Certifications WIMLAS scheme – Certificate No. 029/95
- Free from CFCs, HCFCs and formaldehyde.
- Economical, low cost.
- Cement-free renders and decorative finishes available.
- Easy to profile and shape to create relief and design features.
- Suitable for use below dpc and below ground level.
Note: Where EPS insulated render systems are employed on high rise buildings,non-combustible (mineral fibre) fire breaks should be introduced at each floor level above second floor level. BRE Defect Action Sheet 131-132 advises that fire breaks should be to the same thickness as the EPS insulation. Fire breaks should be mechanically fixed to the substrate with corrosion resistant fixings.