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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.

Choose between the following board types:

• Smooth Tongue and Groove
• Pine Tongue and Groove
• Smooth Bevel Tongue and Groove
• Smooth Straight

GUIDELINES FOR SUMMIT XPS INSULATION BOARD USAGE

• Summit XPS insulation board is a bulk insulator, used to prevent the transfer of heat through conduction and convection
• The greater the thickness the more insulation Summit XPS board will provide
• All other factors being equal, temperatures will be more stable in better-insulated buildings
• Different climatic regions require different insulation interventions to achieve similar levels of comfort (as well as legal compliance)
• Summit XPS board is a thermal insulation solution. It should not be used in isolation as a sound barrier. Consult a noise reduction system specialist

INSULATION BOARD PROPERTIES

• Density = 35-37kg/m³
• 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

STORAGE, HANDLING AND INSTALLATION: GENERAL

• Store Summit XPS insulation board in original packaging, out of the sun and weather elements. Handle with care to prevent damage to edges
• Always paint Summit XPS insulation board in applications where direct or reflected sunlight will fall on it, to protect it from UV rays (which accelerate the ageing process)
• If painting, use two coats of good-quality water based matt PVA paint. The first coat should be an acrylic filler coat to cover minor surface indentations and imperfections
• If leaving it unpainted, wipe Summit XPS insulation board with a cloth soaked in a softened water solution immediately prior to installation to remove static charges from the board’s surface