European tilt & turn windows Browse Canada windows Browse Aluminum windows Browse SYSTEMTHERMAL INSULATION UF*AIR PERMEABILITYWINDLOAD RESISTANCEWATERTIGHTNESSUGUf from 1,45 W/m2KClass 4; EN 12207Class C4 (1600 Pa); EN 122109A (600 Pa); EN 12208
