3. Insulating materials
Mineral insulation materials are made from volcanic rock, sand or recycled glass. The best-known are glass wool and rock wool. Also made from rock, perlite and vermiculite have lower thermal insulation performance than the two wools, and are mainly used for specific insulation work (laying a dry slab, for example).
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3.1.1 Glass wool
Glass wool is made from a natural product (sand and recycled glass or cullet), by melting and fiberizing. It takes the form of a mat of...
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Insulating materials