Energy Ratings

Energy Chart

Window energy rating is a method for assessing the total energy performance of a complete window. 

Window energy rating clearly identifies the best performing window as a whole system rather than simply considering the frame or glass. 

Correctly designed and installed windows will significantly reduce energy usage, thus drastically reducing fuel bills (up to 30% of the heat lost from a home is lost from the windows).

Passive window

By reducing the energy use of houses we can achieve a reduction in CO2 emissionsModern energy efficient windows offer extraordinary thermal performance.

We believe that we can achieve the best U value for windows in Ireland.

 

See our energy chart below for Bruckner windows.



Glazing Options and Technical Data

  Double Glazed Double Glazed Double Glazed Triple Glazed Triple Glazed Triple Glazed Triple Glazed
 Window Type Glass Value: 1.1
W/m2K
Glass Value: 1.0
W/m2K
Glass Value: 0.9
W/m2K
Glass Value: 0.7
W/m2K
Glass Value: 0.6
W/m2K
Glass Value: 0.5
W/m2K
Glass Value: 0.4
W/m2K
 Wood Alu-Passive - - - 0.80 0.75 0.69 0.61
 Wood-Alu Low Energy - - - 0.85 0.79 0.72 -
 Wood-Alu 78/82 - - - 0.93 0.87 0.80 0.73
 Wood-Alu 1.24 1.18 1.11 0.97 0.90 0.83 0.77
 Wood 1.24 1.17 1.10 0.97 0.90 0.83 0.77
 PVC Ultimo 1.25 1.18 1.11 0.98 0.91 0.84 0.78
 PVC Elegance 1.21 1.15 1.08 0.94 0.88 0.81 0.74
 PVC Elegance Thermo 1.18 1.11 1.05 0.91 0.84 0.78 0.71
Calculation based on a window size of 1230 X 1480 mm
U-value of the glassacc. to DIN EN 673 - "Ug"
Energy permeability percentage = g-value acc. to DIN EN 410

Sound proof glass also available.


Frame Values
Window System U value Frame Construction
   
Wood-Alu Passive House Window Uvalue = 0.76 W/m2K
Wood-Alu Low Energy Window Uvalue = 0.89 W/m2K
Wood-Alu Window 78/82 Uvalue = 1.18 W/m2K
Wood-Alu Window Uvalue = 1.30 W/m2K
Wood Window Uvalue = 1.28 W/m2K
PVC Window Ultimo 9.1 Uvalue = 1.30 W/m2K
PVC Window Elegance Uvalue = 1.20 W/m2K
PVC Window Elegance Thermosteele Uvalue = 1.10 W/m2K
Wood-Alu Composite Uvalue = 1.24 W/m2K
PVC Alu Composite Uvalue = 1.30 W/m2K


 
All Timber is Derived from Sustainable Forests