EXTERNAL WALL INSULATION SYSTEMS / TRACK /
TECHNICAL PERFORMANCE
CONDENSATION CONTROL
PermaRock advises assessment of condensation risk in accordance with BS 5250. Full and comprehensive condensation risk and U-value analyses can be provided for specific wall constructions under any combination of environmental conditions and for any building usage.
DENSITY
PermaRock Track-EPS Insulation Boards have an average density of approx. 15 kg/m3.
DURABILITY
PermaRock Track-Systems have a life expectancy in excess of 30 years.
ENVIRONMENTAL PERFORMANCE
Buildings insulated with the PermaRock Track Systems can achieve very low U-values resulting in considerable reductions in heat losses, savings in energy consumption and lower CO2 emissions.
PermaRock Track Systems employ insulation materials that are CFC and HCFC free and these systems do not employ materials that are damaging to the ozone layer.
The expanded polystyrene insulation employed in the PermaRock Track-EPS system has an embodied energy of approx. 92 MJ/m2 at 60 mm thickness.
FIRE PERFORMANCE
PermaRock Track Systems incorporating cement based base coats achieve a Class O surface when tested in accordance with BS 476: Parts 6 and 7.
Where the PermaRock Track-EPS system is used on buildings over two storeys, noncombustible fire breaks are required. Cavity fire barriers may also be required where the system incorporates a drained cavity.
IMPACT RESISTANCE
The resistance of the systems to hard body impact is adequate when assessed in accordance with BS 8200. Increased levels of impact resistance can be achieved through the use of PermaRock Armoured Mesh incorporated into the basecoat layer.
PERFORMANCE
PermaRock Track Systems have an anticipated lifetime in excess of 30 years when designed and installed in accordance with PermaRock’s recommendations. Systems can be designed to withstand very severe exposure conditions and high levels of impact damage.
WATER RESISTANCE
PermaRock Track Systems are suitable for all geographical locations. PermaRock is pleased to advise on specifications to suit particular exposure conditions.
WATER VAPOUR PERMEABILITY
PermaRock Track Systems are capable of water vapour diffusion.
WIND RESISTANCE
Systems are designed to withstand high wind load and suction pressure. The values should be calculated in accordance with BS 6399: Part 2.