PASSIV-LINE PLUS Passiv-line PLUS window is characterized by high thermal insulation at a good price. Using glazing with argon Ug = 0.5 W/m2K, the window of the reference size achieves a heat transfer coefficient of Uw = 0.7 W/m2K.Innovation of this product is based on the use of polyurethane foam, polystyrene fittings in the chambers…