Better insulation of buildings is amongst the most effective ways to reduce the consumption of fossil fuels used in the production of electricity thus reducing greenhouse gas emissions.
All bulk insulation materials have a (R-value) thermal resistance which is a measure of their effectiveness. The thermal resistance, R-value is the ability of the insulation to resist the transfer of heat and is the most important factor when selecting thermal insulation.
The R-value is determined by dividing the thickness of the material in meters by its thermal conductivity (k in W/m² ºC). The R-value is the best indicator of performance.
The energy efficiency legislation for new buildings SANS 10400-XA has been published by the regulator (NRCS). All new buildings will have to comply with the performance parameters, which means that insulation will have to be installed to achieve the stipulated R-values.
New buildings will have to comply with the minimum performance parameters which means that insulation will have to be installed to achieve the deemed to satisfy R-value stipulated in SANS 10400-XA.
Over their useful life Isover's glasswool insulation products save more than 100 times the energy consumed and CO2 emitted in their manufacture, transport and disposal.