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5 Year Guarantee

Thermal Test Certificate Window Insulation

Interver Glass Technology Spectrophotometric Data Ref: 10917

SPD Code: F4 – 85 – 4PKF
 
Fire Code: N/A
Assembly:
 
Outer:
 
Clear Float Glass – 4mm putty glazed into softwood frame.
 
Cavity:
85mm air – filled
 
Inner:
Pilkington ‘K’ Float – 4mm, hard coated surface #3, gasket glazed into aluminium secondary glazing frame mounted in hardwood sub-framed surround.
N.B. Glass arrangement carries no fire rating
 
Spectrophotometric Data
Light Factors:
Reflectance Outwards (LRO):
Reflectance Inwards (LRI):
Direct transmittance (LDT):
17.0 %
16.0 %
75.0 %
Solar Radiant Heat Factors:
Reflectance Outwards (ERO):
Absorptance (EAO):
Direct transmittance (EDT):
Total transmittance (SF):
16.0 %
26.0 %
59.0 %
0.71 %
Shading Co-efficiencies:
Short-wave shading (SWS):
Long-wave shading (LWS):
Overall shading (SC):
0.210 %
0.610 %
0.820 %
U (or ‘K’ ) Value:
1.868 W/m2K
Sound attenuation:
General weighted reduction (Rw):
Traffic noise reduction (Rt):
37 dB Rw
31 dB Rw
Nett Weight Kgs/m2:
Inner pain only:
10 Kgs/m2
Thickness – Overall:
 
93 mm