Variant of PE 78, which has a four-chamber design - similar to the window system PE 78. It is designed for use in structures with particularly high requirements for thermal insulation.

The high insulation levels are achieved by the use of a special insulation inserts ans so: PE 78+version with closed glass chamber Uf value of 1,1 W/m2K. PE 78HI the top variant - with special insulating inserts "aerogel" in the profile chambers, achieves Uf value 0,9 W/m2K.

aluminium profiles
EN AV-6060 according to PN-EN 573-3 / T66 according to PN-EN 515 Al Mg Si 0,5 F22 according to DIN 1725 T1, DIN 17615 T1
Thermal insulation 
heat penetration coefficient (of frame) Uf = 1,2 - 1,9 W/m2K
fillings 
single or packet window panels with any kind of glass or opaque panels
surface finishing 
powder coating with polyester on chromate undercoater accoording to Qualicoat standards, any RAL colour at choice; anodized in colours: natutal aluminium, olive, champagne, gold, old gold, brown - according to Qualanoad standards, lacquered for colour imitated wood
gaskets 
synthetic caoutchouc EPDM according to DIN 7863 and standard according to DIN ISO 3302-1, E2
connecting accessories 
corner joints, screws, tap bolts, aluminium washers, inox or galvanized
furniture 
renowned companies only: Sobinco, Savio, Siegenia, etc.
permissions and quality certificates 
Type tests according PN-EN 14351-1