Natural Resources Canada
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Personal: Residential
Energy Efficiency Ratings

Windows
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Details

Product   Windows
ENERGY STAR® Zone(s)   A B C D
Brand Name   Becker Windows
Product Name   R-3000 Ener-Guard
Model Number   SLC179
NRCan Number   NR7030-2889913-ES
Style   Single Slider
Frame Material   Vinyl
Frame Options   -
Sash Material   Vinyl
Sash Options   -
Layers of Glazing   2 Low E Type   -
Low E Surface   Surface 3 Emissivity   0.11
Glazing Cavity Width (mm)   16.1 Spacer   Hybrid (metal/non-metal)
Glazing Cavity Fill   Argon (x1) Tint   -
Grills/Dividers (height in mm)   -
U-factor 
W/m2*K (Btu/h*ft2*F) 
 1.78 (0.31) Energy Rating   +33
Solar Heat Gain Coefficient   0.58 Visual 
Transmittance 
 0.65
Air Leakage 
(m3/h/m) 
 0.54 Crack Length 
(metres) 
  6.73
Air Leakage 
(l/s/m2
 – Sample size 
(m2
 –
Effective Date (yy/mm/dd)   10/08/04
Energy Performance Certification Agency   CSA
Structural Certification Agency   CSA International
Model Discontinued   N

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