Aluminium windows thermal insulation

Aluminium windows thermal insulation

Stars by QFORT

QFORT has designed the aluminium windows preserving the same protection and energy efficiency superior properties, the same for our entire range of products.

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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.

Standard equipment LowE Clear Insulating Glass
Ug ≥ 1,0 W/m²K |
Double glazing Uw ≥ 1,2 W/m²K
Ug ≥ 0,5 W/m²K |
Triple glazing Uw ≥ 0,8 W/m²K
Standard equipment LowE Clear Insulating Glass
Ug ≥ 1,0 W/m²K |
Double glazing Uw ≥ 1,2 W/m²K
Ug ≥ 0,5 W/m²K |
Triple glazing Uw ≥ 0,8 W/m²K
Standard equipment LowE Clear Insulating Glass
Ug ≥ 1,0 W/m²K |
Double glazing Uw ≥ 1,3 W/m²K
Ug ≥ 0,5 W/m²K |
Triple glazing Uw ≥ 0,9 W/m²K
Standard equipment LowE Clear Insulating Glass
Ug ≥ 1,0 W/m²K |
Double glazing Uw ≥ 1,3 W/m²K
Ug ≥ 0,5 W/m²K |
Triple glazing Uw ≥ 0,9 W/m²K
* The Uw value is calculated for a standard 1230 mm x 1480 mm window, with a surface area of 1.82 m² and a warm spacer

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

Outdoor temperature
- 10°C
Heat insulation
Pane/Glass surface temperature in the dwelling

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

Indoor temperature
+20°C
Heat insulation
Energy
savings

0%

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.

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    QFORT Services - Warranty

    *The warranty period may vary depending on the components and specifications of the product. Please refer to the warranty certificate for more details.