Thermal efficiency
Certified by the German Passivhaus Institut, the unique design of ENERsign windows & doors offers some of the most advanced performance in the world. It offers among the lowest U values anywhere, with a whole window Uw value of 0.65 W/m2K and glazing Ug value of 0.53 W/m2K.
Thermal insulation
Window U value, Uw = 0.65 W/m2K
Frame U value, head/ jambs, Uf = 0.64 W/m2K
Frame U value, sill, Uf = 0.78 W/m2K
Glazing psi value Ψg 0.033 W/m2K
EN10077-2, 1230 X 1480 window

