QFORT.com / Windows / Aluminium / Heat insulation

Aluminium windows thermal insulation

Being the brand with the best thermal insulation in Romania (according to Kantar Millward Brown 2018), 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.

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Standard equipment SuperLowE 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

6Stars profil

Standard equipment SuperLowE 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

5Stars View profil

Standard equipment SuperLowE 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

5Stars profil

Standard equipment SuperLowE 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

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

Energy
savings

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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