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Expanded polystyrene EPS board upgrades the thermal properties of a building, improving U-values, reducing the risk of water penetration and condensation.
Expanded polystyrene EPS board is a high-performing thermal insulation at the centre of our external wall insulation systems. It upgrades the thermal properties of a building, improving U-values, reducing the risk of water penetration and condensation. EPS boards can be used on timber, masonry and system-built properties as well as for tile hanging and a wide range of rendering systems. It is designed to be applied externally to masonry or timber-backed walls, either by mechanical fixing with supplementary adhesive or just by mechanical fixings. EPS boards can also be installed in the cavity void, if the property is being insulated using cavity wall insulation.
The boards are available in various thicknesses (20mm, 30mm, 50mm, 70mm, 90mm, 100mm, 150mm and 200mm), stocked depending on your requirements.
The product is designed to be applied externally to masonry or timber-backed walls, either by mechanical fixing with supplementary adhesive or just by mechanical fixings.
Composition: expanded polysterene, graphite
Thermal Conductivity: 0.032W/(m2K)
Reaction to Fire: Class E
Size of boards: 1200mm by 600mm
Thickness available: 20mm, 50mm, 70mm, 100mm
Coverage in pack: 1m2
Bending strength: >= 75kPa
Use netting on scaffolding to reduce the amount of polystyrene blowing about in the wind.
Try to use a hot knife or hot wire cutters to minimise the amount of polystyrene offcuts, although a standard saw can be used – ideally, cut the boards within a covered area to reduce offcuts blowing around.
EPS insulation boards should be installed in accordance with the manufacturer’s installation guidelines – these should cover design and all aspects of the application of the insulation. The boards are initially fixed to the substrate (masonry or timber) either by a mortar/adhesive or simply by mechanical fixings.
After having been fixed to an external wall, the EPS boards should be covered with an outer layer, either by the mortar basecoat or simply by a netting covering to protect from excessive heat, moisture and UV exposure.
Before applying the basecoat or mortar for the fibreglass mesh, the top surface of the EPS board needs to be rasped or sanded down to produce an abrasive surface. Once this has been done, the substrate is ready for the application of the fibreglass mesh.
Use an industrial hoover to clean-up the polystyrene bits.
Stacked by stacking boards – coverage depends on board thickness
100mm board – coverage 1m2
Shelf life: please see the manufacturer’s date of expiry. Keep in a dry place, in the original packaging. Avoid excess heat or UV light exposure.
Wear eye protection, gloves and a mask.Take extra caution when using cutting equipment.
The product complies with the harmonized standard EN 13163:2012 and A1:2015
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