Industrial door

foldinggalvanised steelinsulated

The bifold door Mod Foldingr consists of 52 mm thick leaves; the internal perimeter frames in 20/10 thick galvanised steel profile are fully foamed and insulated. The doors are covered with smooth or peeled sheets 8/10 thick, obtained through a continuous rolling process in SENDZIMIR galvanised steel; this is followed by phosphating and the application of 5 Micron thick primer on both sides. On the external side is applied the finishing varnish with a thickness of 20 Micron. The surface thus obtained is completely smooth. The pre-painting offers, without any alteration, the resistance of 400 hours in a salt spray chamber. Finally, we prevent scratches by applying adhesive film to be removed after installation. The insulation is guaranteed by the injection of self-extinguishing polyurethane foam according to DIN 4102 class B2, with an average density of 43/45 Kg/m³, obtained through an under-press expansion process that ensures a high degree of thermal insulation. Fields of application with temperatures between +4° C and +40° C CE marking EN 13241-1 (CPD), wind resistance class 4 Acoustic isolation UNI EN 717-1; R=28dB Thermal transmittance according to standard 13241-1 U=1.7W / m²K