ARBET Grey Polystyrene (Graphite EPS) for External Wall Insulation
Available in sizes: 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 90mm, 100mm
Grey Polystyrene (Graphite) is a high quality expanded polystyrene (EPS) board enhanced with integrated graphite within its bead structure and of grey colour. The high-purity graphite particles integrated within the insulation beads reflects radiant heat and significantly improves insulation capability, providing up to 20% greater r-value than traditional white EPS of the same thickness.
The rigid EPS closed-cell insulation traps air in pockets within each bead when formed. Air trapped in these pockets is a poor conductor of heat, and therefore slows down its transfer towards cooler air.
Grey Polystyrene (Graphite) boards have high-purity graphite particles infused into its cell structure that give it a reflective property and a distinctive dark grey colour. As radiant heat moves through graphite insulation, it reflects it hundreds of times, significantly slowing down the transfer of heat and making it more energy efficient.
Warm air always moves towards cold air, but in Grey Polystyrene (Graphite) boards that path takes many twists and turns along the way, slowing down the heat transfer and keeping the premises warmer. This improves its thermal conductivity to 0.031 W/mK, an improvement over standard expanded polystyrene boards.
Lightweight
Easily cut with a sharp knife to any size and shape
High resistance to mould growth
Highly durable, if used according to specifications
Cost efficient
An environment friendly Green Way product
Instalation:
The boards are fixed to the substrate (masonry or timber) either by a mortar/adhesive or by mechanical fixings. Could also be fixed with adhesive combined with mechanical fixings.
Then the boards should be covered with siding or mortar layer.
The outer surface of the board needs to be rasped or sanded down, then covered with the fibre mesh to which the base coat or mortar layer would be applied.