Our flagship product, Summit XPS board, is made from ridged, extruded polystyrene foam and is designed to create a single layer of thermal and moisture protection on a building’s walls, roof, or floor, significantly contributing to its overall energy efficiency.

Insulation Board Properties

• Density = 35-37kg/m³
• R-Value =1.14m².K/W
• Compressive Strength = 310-360 kpa
• Water Absorption = 0.5% by volume
• Coefficient of Linear Thermal Expansion = 0.049mm per m per °C
• Dimensional stability = <1.0%
• Thermal Conductivity = 0.030W/mK
• Combustibility and Flame Spread = B/B1/2/H&V/B – S1,D1 as per SANS 53501-1

*Prices Exclude Vat & Delivery

*B-Grade and Hidden application such as Foundations / Cavity and Under Floor Heating, Please enquire for discounted price.