An Arbonia Group Company

Energy efficient windows

Roof windows

Termo Premium roof window

Termo Premium roof windows are characterised by their original, rounded profile shape. Heat transfer coefficient of the window Uw=1.3 W/m²K.

Termo Premium roof window


  • Pleasant atmosphere at home – guarantees optimal access of daylight to the rooms, the four seal system guarantees excellent window tightness.
  • Long life – aesthetic, PVC resistant to ageing, damp and temperature changes, ideally suite for use in any room at home, steel reinforcements inside the profile improve the static properties of the entire structure.
  • Design – maintenance-free.
  • Functionality – an elevated window rotation axis and a handle installed at the bottom of the window facilitate use and increase space inside the room.

Convincing parameters

Thermal insulation
Uw = 1,3 W/m²K
Heat transfer coefficient
Ug = 1,0 W/m²K
Distance frame
plastic distance frame (hot frame/TGI)
Gas filling
Air penetration
class 2
Water tightness
class E750
Wind load resistance
class C3

Sheet and sealing flange colours

RAL 7043

RAL 7043

RAL 8019

RAL 8019