6-chamber system with 90 mm built-in depth (frame width) ensures maximum thermal protection: with the standard window pane ( Us=1,0 or 1,1 Wm2K ) and sash with no insulating wedge, the heat penetration rate is U= 1,1 to 1,2 Wm2K.

The version with insulating 3-pane glass unit ( Us=0,7 ) and insulating wedge gives heat penetration rate U= 0,8 Wm2K for the entire window, which qualifies the windows to be used in energy-saving (passive) as well as thermo-modernized houses.

Glazing thickness options are: 24 to 50 mm with 2-pane or 3-pane systems. Modern insulating wedge integrated with one of the frame profile's chambers additionally increases the insulation against cold.



The offer is reasonably priced, even for very demanding customers. Efectline system windows are equipped with a 5-chamber profile, low-emission glass and a new technical solution to envelope locking fittings – special auto Pilot Elegance hinges that retract into the casement.

This “discreet” fitting is completely invisible while the window is closed. The main advantages of the new system are: functionality, safety and stability.

EFECTLINE system is available in white color, with 24 mm thick glazed panels and frame-sash gasket extruded with the profile.


Perfectline non-countersunk sash version


Perfectline half-countersunk sash version


Project pictures