Thermal insulation coefficient values of the windows Stars by QFORT:
Please find hereinafter the values of the thermal insulation coefficient relevant for QFORT thermal insulating windows.
The Ug coefficient represents the heat transfer value calculated at the level of the window glazing.
The Uw coefficient represents the heat transfer value calculated for the entire window.
The smaller the U coefficient is, the lower the heat loss and the better the thermal insulation of that building element are.
Double glazing Uw ≥ 1,35 W/m²K
Triple glazing Uw ≥ 0,94 W/m²K
Double glazing Uw ≥ 1,32 W/m²K
Triple glazing Uw ≥ 0,93 W/m²K
Double glazing Uw ≥ 1,41 W/m²K
Triple glazing Uw ≥ 1 W/m²K
Double glazing Uw ≥ 1,42 W/m²K
Triple glazing Uw ≥ 1,03 W/m²K
Energy-Saving with Windows Stars by QFORT
QFORT aluminium windows are equipped, in standard, with SuperLowE insulating glass (super low emissivity), warm spacers (warm edge technology) with two or three glass panes, a system rendering them a high thermal insulation characteristic. All these characteristics translate into considerably reduced costs for heating during winter and cooling during summer.
Smaller U coefficient = Lower heat loss
Simple 4mm window pane
U ≥ 5,8 W/m2K / -2,3°C
Traditional double-glazed window
U ≥ 2,9 W/m²K / 9°C
24mm heat-insulating double pane
U ≥ 1,0 W/m²K / 15,6°C
44mm heat insulating triple pane
U ≥ 0,5 W/m²K / 18,5°C
up to 39%
up to 73%
up to 87%
Moreover, a particularity of the Aluminium Windows Stars by QFORT is the heat barrier composing them. The 35 mm heat barrier zone and the insert of polyolefin foam in the frame and window frame allow the maximization of the energy efficiency.
*The warranty period may vary depending on the components and specifications of the product. Please refer to the warranty certificate for more details.