Insulation in low-cost housing

by Tania Wannenburg
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With energy costs constantly increasing and demand out-weighing supply, all living quarters need to be as energy-efficient as possible, including these in the government housing programme.
Since the inception of Lambdaboard into the market in late 2008, the demand for this product in ceiling applications is at a constant growth. Lambdaboard is not only a ceiling board but it also provides thermal insulation, and when installed below the roof truss there are minimal heat bridges in application.

“Lambdaboard is cost-effective and easy to install,” says Gerhard Breedt, managing director of Breekon Construction. “After our introduction to this product in the Kleinmond housing development, this application has become our standard and we are now using it at our present project – Nuwe Begin in the Western Cape.”  In 2009 CSIR Modular House Building Systems obtained their Agrement certificate where Lambdaboard is the only ceiling and insulation medium to be used.

Using the new Touch & Seal panel bond adhesive to install the boards to the underside of the trusses makes installation of the ceilings the easiest part of the project. The board can be cut and repaired on site if required.

The board is supplied with a white-finish facing that does not need painting after installation, but can be painted at a later stage at the occupant’s call – any paints that can be used as solvent-based paints will not affect the board’s surface or insulation properties.

“The demand for this product is overwhelming,” says Duncan Goldsmith, managing director of Rigifoam. “We manufacture and developed a product that suits all areas of the building environment, not just air-conditioned environments.”

Domestic housing is a large user of electricity from heating fuels and the lower income housing is also affected. Government housing has for a long time been seen as a lower standard house, where in fact the occupants have less disposable income than most and can’t afford heating and cooling costs, hence the reason for good insulation at construction stage.

The installation method has been kept simple to allow the homeowner to add an insulated ceiling into the house without having to remove one’s contents. It is a single clean installation that achieves both benefits of insulation and an aesthetically-pleasing ceiling.

Having a very low moisture absorption rate of <3% at 95%RH as tested by the SABS, this product can be used in steam-affected rooms such as kitchens and bathrooms. Cavity-wall and under-floor insulation must be looked at next to achieve optimum climate comfort.

Distribution of the material is available in Gauteng, KwaZulu-Natal, the Eastern Cape and the Western Cape. Recently distributors have also been set up in Namibia and Botswana.

Tel: 011 421 0313
Fax: 011 421 0410
E-mail: duncan@rigifoam.com
Website: www.rigifoam.com

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