Polypropylene vapor barrier USB MICRO STRONG

roof

USB MICRO STRONG is a three layer vapour barrier which is impermeable to water and air; the top layer is made of non-woven polypropylene fabric which protects the low breathability polypropylene middle microporous film against trampling on the roof; the bottom layer is also made of non-woven polypropylene dual layer fabric known as "grip", which provides abrasion protection for the middle film even when laid on particularly rough surfaces such as untreated planks or concrete-masonry slabs. The three layers are joined and heat sealed together to obtain a vapour barrier with an areal mass of 230 g/m² with a particularly impressive tear resistance (>440 N/5cm machine direction >350 N/5cm cross direction) and mechanical characteristics that guarantee the product even in particularly difficult laying situations