ULTRA THERMAX window is a completely innovative technical solution. DK offers certified aluminium clad wooden windows with the heat transfer coefficient for the whole product of Uw=0.7 W/m2K!!!
Such excellent thermal parameters have been obtained by using 88 mm thick wooden profile, additionally insulated with Purenit insert.
THERMAX ULTRA windows can be used in passive house constructions where the value of Uw = 0.8 W/m2K is sufficient.