Professional Centre

WERS Data

Search

Window Performance

The performance values displayed on the following pages are for use in the calculation of Whole of Window (WoW) energy requirements in accordance with the National Construction Code, Volume 1 (section J) & Volume 2 Part 3.12. These values are not to be used for the purpose of glass only energy requirements.

Data is presented in the lowest to highest Uw rating. To sort by a different column please click the heading

Ser­ies Glass Uw SHGCw VTw Glaz­ing
131 Aluminium Sliding Window
4mm Grey / 8mm Air Gap / 4mm Low-e on Clear #3
3.70 0.40 0.36 Double
131 Aluminium Sliding Window
4mm Green / 8mm Air Gap / 4mm Low-e on Clear #3
3.70 0.42 0.53 Double
131 Aluminium Sliding Window
6mm Low-e on Clear #2 / 6mm Air Gap / 4mm Clear
3.90 0.51 0.58 Double
131 Aluminium Fixed Window
5mm Clear
6.20 0.76 0.80 Single
131 Aluminium Fixed Window
4mm Clear
6.20 0.77 0.80 Single
131-100 Aluminium Sliding Window
6.38mm Grey Laminate
6.35 0.51 0.36 Single
131-100 Aluminium Sliding Window
6.38mm Light Grey Laminate
6.43 0.57 0.52 Single
131-100 Aluminium Sliding Window
6.38mm Clear Lam
6.43 0.66 0.74 Single
131-100 Aluminium Sliding Window
5mm Grey
6.52 0.52 0.40 Single
131-100 Aluminium Sliding Window
5mm Clear
6.52 0.70 0.75 Single
131 Aluminium Sliding Window
6mm Clear / 6mm Air Gap / 4mm Low-e on Clear #3
3.90 0.53 0.58 Double
131 Aluminium Sliding Window
6mm Grey / 6mm Air Gap / 4mm Low-e on Clear #3
4.00 0.34 0.29 Double
131 Aluminium Sliding Window
6.38mm Grey Laminate / 6mm Air Gap / 4mm Low-e on Clear #3
4.00 0.37 0.27 Double
131 Aluminium Sliding Window
4mm Grey / 6mm Air Gap / 4mm Low-e on Clear #3
4.00 0.40 0.36 Double
131 Aluminium Sliding Window
4mm Green / 6mm Air gap / 4mm Low-e on Clear #3
4.00 0.42 0.53 Double
131 Aluminium Sliding Window
6.38mm Green Laminate / 6mm Air Gap / 4mm Low-e on Clear #3
4.00 0.46 0.47 Double
131 Aluminium Sliding Window
4mm Low-e on Clear #2 / 6mm Air Gap / 4mm Clear
4.00 0.52 0.58 Double
131 Aluminium Sliding Window
4mm Clear / 6mm Air Gap / 4mm Low-e on Clear #3
4.00 0.55 0.58 Double
131 Aluminium Fixed Window
6.76mm Solect Clear Plus 1X9 Laminate Low-e #4
4.10 0.51 0.69 Single
131 Aluminium Sliding Window
4mm Low-e on Clear #2 / 8mm Air Gap / 4mm Clear
3.70 0.52 0.58 Double
131 Aluminium Fixed Window
6.38mm Solect Blue Green 139 Laminate Low-e #4
4.10 0.56 0.59 Single
131 Aluminium Fixed Window
6.38mm Solect Blue 169 Laminate Low-e #4
4.10 0.58 0.61 Single
131 Aluminium Fixed Window
6mm Low-e on Super Green #2
4.20 0.37 0.54 Single
131 Aluminium Fixed Window
6.38mm Comfort Plus Grey Laminate Low-e #4
4.20 0.46 0.35 Single
131 Aluminium Fixed Window
6.38mm Solect Pewter 129 Laminate Low-e #4
4.20 0.46 0.35 Single
131 Aluminium Fixed Window
6.38mm Solect Green 819 Laminate Low-e #4
4.20 0.46 0.63 Single
131 Aluminium Fixed Window
6.38mm Comfort Plus Neutral Laminate Low-e #4
4.20 0.47 0.53 Single
131 Aluminium Fixed Window
6.38mm Comfort Plus Green Laminate Low-e #4
4.20 0.47 0.63 Single
131 Aluminium Fixed Window
6mm SolTech
4.20 0.49 0.57 Single
131 Aluminium Fixed Window
6.38mm Solect Clear 119 Laminate Low-e #4
4.20 0.62 0.73 Single
131 Aluminium Sliding Window
4mm Clear / 8mm Air Gap / 4mm Low-e on Clear #3
3.70 0.56 0.58 Double
131 Aluminium Fixed Window
6.38mm Comfort Plus Clear Laminate Low-e #4
4.20 0.63 0.73 Single
131 Aluminium Fixed Window
6mm Low-e on Clear #2
4.20 0.65 0.74 Single
131 Aluminium Sliding Window
4mm Grey / 8mm Air Gap / 4mm Clear
4.20 0.44 0.39 Double
131 Aluminium Sliding Window
4mm Green / 8mm Air Gap / 4mm Clear
4.20 0.46 0.58 Double
131 Aluminium Sliding Window
4mm Clear / 8mm Air Gap / 4mm Clear
4.20 0.60 0.63 Double
131 Aluminium Fixed Window
6.38mm Solect Shadow 1H9 Laminate Low-e #4
4.23 0.52 0.51 Single
131 Aluminium Fixed Window
6mm SolTech Grey
4.27 0.34 0.27 Single
131 Aluminium Fixed Window
6mm Low-e on Grey #2
4.29 0.44 0.36 Single
131 Aluminium Fixed Window
6mm Solar E Grey
4.30 0.34 0.27 Single
131 Aluminium Fixed Window
4mm SolTech
4.30 0.50 0.55 Single
131 Aluminium Sliding Window
6mm Supergreen / 6mm Air Gap / 4mm Low-e on Clear #3
3.90 0.30 0.43 Double
131 Aluminium Fixed Window
4mm Low-e on Clear #2
4.30 0.65 0.73 Single
131 Aluminium Sliding Window
6.38mm Grey Laminate / 6mm Air Gap / 4mm Clear
4.30 0.41 0.30 Double
131 Aluminium Sliding Window
6.38mm Green Laminate / 6mm Air Gap / 4mm Clear
4.30 0.50 0.51 Double
131 Aluminium Fixed Window
6mm EVantage SuperBlue
4.40 0.34 0.35 Single
131 Aluminium Fixed Window
6mm EVantage Supergreen
4.40 0.34 0.43 Single
131 Aluminium Fixed Window
6mm EVantage Grey
4.40 0.38 0.29 Single
131 Aluminium Fixed Window
6mm EVantage Blue Green Low-e #2
4.40 0.42 0.50 Single
131 Aluminium Fixed Window
6mm EVantage Clear
4.40 0.57 0.60 Single
131 Aluminium Sliding Window
6mm Azuria / 6mm Air Gap / 4mm Clear
4.40 0.33 0.48 Double
131 Aluminium Sliding Window
6mm Supergreen / 6mm Air Gap / 4mm Clear
4.40 0.34 0.46 Double
131 Aluminium Sliding Window
6mm Azuria / 6mm Air Gap / 4mm Low-e on Clear #3
3.90 0.30 0.44 Double
131 Aluminium Sliding Window
5mm Panasap Dark Grey / 6mm Air Gap / 5mm Clear
4.40 0.36 0.15 Double
131 Aluminium Sliding Window
6mm Grey / 6mm Air Gap / 4mm Clear
4.40 0.38 0.31 Double
131 Aluminium Sliding Window
5mm Supergreen / 6mm Air Gap / 5mm Clear
4.40 0.38 0.51 Double
131 Aluminium Sliding Window
5mm Grey / 6mm Air Gap / 5mm Clear
4.40 0.41 0.35 Double
131 Aluminium Sliding Window
6mm Green / 6mm Air Gap / 4mm Clear
4.40 0.41 0.55 Double
131 Aluminium Sliding Window
6mm Bronze / 6mm Air Gap / 4mm Clear
4.40 0.42 0.36 Double
131 Aluminium Sliding Window
4mm Grey / 6mm Air Gap / 4mm Clear
4.40 0.44 0.39 Double
131 Aluminium Sliding Window
5mm Green / 6mm Air Gap / 5 mm Clear
4.40 0.44 0.56 Double
131 Aluminium Sliding Window
4mm Grey / 6mm Air Gap / 4mm Clear
4.40 0.45 0.40 Double
131 Aluminium Sliding Window
4mm Green / 6mm Air Gap / 4mm Clear
4.40 0.46 0.58 Double
131 Aluminium Sliding Window
6.38mm Solect Green 819 Low-e #4 / 6mm Air Gap / 4mm Clear
3.90 0.36 0.50 Double
131 Aluminium Sliding Window
4mm Green / 6mm Air Gap / 4mm Clear
4.40 0.47 0.58 Double
131 Aluminium Sliding Window
5mm Clear / 6mm Air Gap / 5mm Clear
4.40 0.58 0.63 Double
131 Aluminium Sliding Window
6mm Clear / 6mm Air Gap / 4mm Clear
4.40 0.58 0.63 Double
131 Aluminium Sliding Window
4mm Clear / 6mm Air Gap / 4mm Clear
4.40 0.60 0.63 Double
131 Aluminium Fixed Window
6mm Sunergy Grey #2
4.50 0.40 0.30 Single
131 Aluminium Fixed Window
6mm Sunergy Green Low-e #2
4.60 0.40 0.50 Single
131 Aluminium Fixed Window
6.38mm Solect Netural 11S Laminate Low-e #4
4.60 0.53 0.61 Single
131 Aluminium Fixed Window
6mm Sunergy Clear Low-e #2
4.60 0.55 0.61 Single
131-100 Aluminium Sliding Window
6.38mm Comfort Plus Neutral Laminate Low-e #4
4.76 0.44 0.51 Single
131-100 Aluminium Sliding Window
6.38mm Solect Pewter 129 Laminate Low-e #4
4.77 0.42 0.35 Single
131 Aluminium Sliding Window
6mm Bronze / 6mm Air Gap / 4mm Low-e on Clear #3
3.90 0.38 0.33 Double
131-100 Aluminium Sliding Window
6.38mm Solect Clear 119 Laminate Low-e #4
4.77 0.57 0.69 Single
131-100 Aluminium Sliding Window
6mm SolTech
4.78 0.46 0.54 Single
131-100 Aluminium Sliding Window
6mm Low-e on Clear #2
4.80 0.63 0.69 Single
131-100 Aluminium Sliding Window
6.38mm Solect Netural 11S Laminate Low-e #4
5.08 0.47 0.57 Single
131-100 Aluminium Sliding Window
6mm Sunergy Clear Low-e #2
5.15 0.51 0.58 Single
131-100 Aluminium Sliding Window
6mm Sunergy Grey #2
5.15 0.37 0.29 Single
131 Aluminium Fixed Window
6.76mm Solutia Acoustic Laminate
6.00 0.65 0.70 Single
131 Aluminium Fixed Window
6.76mm Clear Laminate
6.00 0.72 0.79 Single
131 Aluminium Fixed Window
6.38mm Light Grey Laminate
6.04 0.63 0.55 Single
131 Aluminium Fixed Window
6.38mm Supergreen Laminate
6.10 0.46 0.57 Single
131 Aluminium Sliding Window
6mm Green / 6mm Air Gap / 4mm Low-e on Clear #3
3.90 0.38 0.50 Double
131 Aluminium Fixed Window
6.38mm Grey Laminate
6.10 0.57 0.38 Single
131 Aluminium Fixed Window
6.38mm Sky Blue Laminate
6.10 0.63 0.48 Single
131 Aluminium Fixed Window
6.38mm Blue Green Laminate
6.10 0.66 0.64 Single
131 Aluminium Fixed Window
6.38mm Cool Blue Laminate
6.10 0.68 0.66 Single
131 Aluminium Fixed Window
6.38mm Clear Lam
6.10 0.73 0.79 Single
131 Aluminium Fixed Window
6mm Azuria
6.20 0.47 0.61 Single
131 Aluminium Fixed Window
6mm SuperBlue
6.20 0.48 0.47 Single
131 Aluminium Fixed Window
6mm Supergreen
6.20 0.48 0.59 Single
131 Aluminium Fixed Window
5mm Panasap Dark Grey
6.20 0.52 0.19 Single
131 Aluminium Fixed Window
6mm Grey
6.20 0.53 0.39 Single
131 Aluminium Sliding Window
6.38mm Solect Clear 119 Low-e #4 / 6mm Air Gap / 4mm Clear
3.90 0.49 0.58 Double
131 Aluminium Fixed Window
5mm Supergreen
6.20 0.53 0.65 Single
131 Aluminium Fixed Window
6mm PanasapDarkBlue
6.20 0.54 0.52 Single
131 Aluminium Fixed Window
6mm Green
6.20 0.56 0.69 Single
131 Aluminium Fixed Window
5mm Grey
6.20 0.57 0.45 Single
131 Aluminium Fixed Window
6mm Bronze
6.20 0.57 0.46 Single
131 Aluminium Fixed Window
5mm Green
6.20 0.59 0.71 Single
131 Aluminium Fixed Window
4mm Grey
6.20 0.60 0.50 Single
131 Aluminium Fixed Window
5mm Bronze
6.20 0.61 0.53 Single
131 Aluminium Fixed Window
4mm Green
6.20 0.62 0.73 Single
131 Aluminium Fixed Window
6mm Clear
6.20 0.75 0.79 Single

Search Again…

Search the G.James WERS database using any of the filters below. Alternatively, you can Show All to browse a complete listing of WERS rated G.James products.

Search results can be used for both Commercial and Residential applications.

  1. (Result will show +10% of the value entered)

  2.        

  3. Single/Double Glazing         



For more information, please contact your G.James representative or use our Professional Support Page.