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Performance Data

Performance Data

Glass is a natural substance and therefore the variations that exist in the manufacturing process at different suppliers means that the performance properties of glass can change depending on who makes it. The data shown below is indicative of each glass type and is for the performance of the glass only. Windows are a system – frame and glass – and it is this information which needs to be input to NatHERS energy rating models. For further information please contact an Airlite sales representative.

Glass performance data

Glass Type thickness
mm
light
trans
solar
trans
UV
trans
U-value Shading
co-efficient
SHGC
single glaze - float - clear 5 88 79 64 5.8 0.96 0.83
single glaze - float - low iron 6 91 90 84 5.7 1.03 0.89
single glaze - tone - bronze 5 55 52 23 5.8 0.75 0.65
single glaze - tone - green 5 79 49 34 5.8 0.73 0.63
single glaze - tone - grey 5 48 51 31 5.8 0.74 0.64
single glaze - high performance tone - blue 6 53 33 20 5.8 0.60 0.52
single glaze - high performance tone - green 6 66 33 14 5.8 0.60 0.51
single glaze - high performance tone - grey 6 9 8 1 5.7 0.41 0.35
single glaze - low-e online - clear 6 68 52 46 4.1 0.69 0.59
single glaze - low-e online - green 6 56 28 16 4.1 0.49 0.42
single glaze - low-e online - neutral 6 60 46 46 3.7 0.62 0.54
single glaze - low-e online solar control - clear 6 67 58 30 3.8 0.72 0.62
single glaze - low-e online solar control - grey 6 32 29 10 3.8 0.48 0.41
laminate - clear 6.38 86 72 <1 5.7 0.91 0.79
laminate - tone - green 6.38 70 63 <1 5.7 0.83 0.72
laminate - tone - grey 6.38 42 47 <1 5.7 0.71 0.61
laminate - low-e online - clear 6.38 82 64 <1 3.6 0.79 0.68
laminate - low-e online - green 6.38 71 41 <1 3.6 0.59 0.50
laminate - low-e online - grey 6.38 40 40 <1 3.6 0.58 0.50
laminate - security 7.52 86 70 <1 5.6 0.89 0.77
laminate - self cleaning 6.38 81 70 <1 5.7 0.87 0.76
IGU - clear/air/clear 4/10/4 80 66 52 2.7 0.85 0.74
IGU - tone grey/air/clear 4/10/4 49 46 29 2.7 0.65 0.57
IGU - low-e online/air/clear 4/10/4 74 56 42 1.9 0.78 0.69
IGU - low-e online/air/tone grey 4/10/4 45 38 23 1.9 0.59 0.51
IGU - low-e offline/air/clear 4/10/4 69 32 28 1.7 0.42 0.36
IGU - low-e offline/argon/clear 4/10/4 69 32 28 1.4 0.42 0.36

Please refer to our terminology for full descriptions of terms used in this table.