Isofoam South Africa (Pty) Ltd, was established in 1995 by the Kharafi Group of companies, with the aim of introducing IsoBoard Extruded Polystyrene (XPS) Thermal Insulation board to the South African Market. XPS offers the highest commercially available heat flow resistance of all insulation boards. IsoBoard rigid high density thermal insulation boards offer a range of applications from over-purlin to under floor slab to exposed ceilings. Simple to install, IsoBoard is water resistant, flame retardant, washable and paintable, and has the highest resistance to heat transfer. IsoBoard – for comfort and energy efficiency.
Loss of heat through floors on concrete surface beds is experienced as a cold underfoot condition, particularly during winter when the supporting soils cool down due to hygroscopic action of water. In order for rooms to be heated or cooled energy efficiently, the floors need to be insulated from the surrounding soil bed to prevent soilbed from being heated.
Where construction, design and / or cost implications prohibit the installation of an inverted roof insulation system, the requirement for insulation is met by fixing IsoBoard to the under soffit surface of the slab as a ceiling.
IsoBoard, high-density extruded polystyrene rigid thermal insulation board, having 100% closed cell structure!
IsoBoard Insulation installed over purlin under roof sheet. — In South Africa, the bulk of retail and industrial buildings are steel-sheet clad frames, where 70% of the heat gain is through the roof. IsoBoard over purlin insulation is the most cost effective method of achieving thermal efficiency in these buildings.
Isoboard heat gain in residential homes is largely through the roof structure. Insulated ceilings retard heat flow into the living areas in summer, and contain generated heat in winter, providing a comfortable living environment.
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.
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 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.
IsoBoard over rafter and truss insulation is extruded polystyrene rigid foam board that is installed between rafters or roof trusses and tile battens or sheeting purlins to form insulating ceilings.