Building Product Brochures & Datasheets

Extruded Polystyrene

Inverted Roof Insulation

Isoboard – the Inverted Roof Concept, also known as protected membrane or upside down roofing, ensures insulating both the water-proofing membrane and the reinforced concrete slab from extreme thermal stress. This is achieved by placing IsoBoard extruded polystyrene insulation board above, instead of below the waterproofing membrane.

Cavity Wall Insulation

Isoboard cavity wall insulation will prevent heat transfer and build-up to the inner leaf of sun exposed walls. Moisture within the cavity is prevented from condensing onto and penetrating through the inner leaf when IsoBoard is installed. The insulation restricts heating ingress to temperature controlled and passive cooled environments.

Product Information

IsoBoard thermal insulation is a high density, extruded polystyrene rigid insulation board, having a 100% closed cell structure. IsoBoard has been tried and tested internationally since 1970, and manufactured in South Africa since 1995, using a fully automated extrusion process, in  accordance with international specifications and standards.

Isoboard Physical Properties

IsoBoard, high-density extruded polystyrene rigid thermal insulation board, having 100% closed cell structure!


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