An economic insulated aluminium profile system with the Euro hardware groove as well as the PVC hardware groove in window sash profiles.
Uf from 2.1 W/m2K, Uw = 1.3 W/m2K (W 1230 x H 1480 mm, Ug = 0.6 W/m2K, triple glazing).
type testing in acc. with EN 14351-1 + A1