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Manufacturer page.EPD: XPS Insulation board, L=0.034 W/mK , R=1 m2K/W, 70 mm, 600 mm x 1200-2400 mm, 2.52 kg/m2, 36 kg/m3, JACKOFOAM 400 XPS SWEDEN (Bewi Insulation Scandinavia)
Extruded polystyrene (XPS) is a common material used for thermal insulation of buildings and constructions. It s a polymer foam, consisting of air-filled polystyrene cells. As most of the material is air, XPS provides good insulating properties at a low weight. Other characteristics of the material include low moisture absorption, long service life and high compressive strength. XPS is manufactured through an extruder where polystyrene granulates are mixed with additives and foaming agents to produce the foam mass. The foam mass is pressed out flat to a board through a nozzle in deisre thickness and cut into correct dimensions. Some of the remaining blowing agents are aired out before the product leaves the factory gate. The number of the product is the pressure class; here 250 which means a short dermation of 10% when the load of the product is 250 kN/m2. Weight per declared unit is 0,971 kg given a density of 28,5 kg/cubic meter with a thickness of 34 mm including packaging material.
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