Expanded Polystyrene
Expanded polystyrene is easy to handle and cut, rot proof, long term durability uniform thickness or cut to falls systems, square or tongued and grooved edge detail. Available in various grades including high density for us on balconies etc it has factory bonded facings for use with bitumen, single ply, mastic asphalt and liquid waterproofing.
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A wide range of slate from various parts of the world are produced to the very highest standard and selected for quality, consistency and cost effectiveness. The quarries are from Spain, Brazil, North America, China and the UK.
Consisting of two layers of air bubble polyethylene, wedge-welded 15mm wide, covered with a film of low emission aluminium on both sides that blocks up to 97% of the radiant heat transfer and prevents heat gain in summer and heat loss in winter. Alum-Tech is an ideal insulation for flat and pitch roofs. 