Sandwich roof impermeable polyurethane sandwich panels in one of his internal polyurethane filler, this material instead of the old form filler, not only reduces the weight of the sheet, the sheet also improved insulation properties, because the internal filling Polyurethane is a relatively good overall performance materials. Leakproof roof sandwich-type wall insulation board is now often used in the construction industry, polyurethane because of their superior strength, mechanical and ultra-low thermal conductivity become a new type of building material. Sandwich roof leakage prevention (for more information go to: http://www.jazfhb.com/) as the main internal filling polyurethane insulation materials, it is much better overall performance, it is not only in the construction layer play a role of insulation, but also has a waterproof effect fire, the polyurethane itself has such characteristics are, in the latter process we use it is capable of imparting good cutting ability and decorative. Anti-leakage when used in sandwich roof insulation and the insulation system capable of intensity biggest improvement in the level of the building, but also can play a very good decorative effect. This article is from: He brand new energy-saving sheet for more information on the polyurethane sheet, please click: http://www.jazfhb.com/supply/