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PLASTIC SKYLIGHT GLAZING PERFORMANCE

energy distribution of solar radiation

Material

Color

Transmittance

Shading Coefficient
. .

Visible light

Solar Heat

 .

Polycarbonate
Polycarbonate
Polycarbonate
Polycarbonate

Clear
Bronze #2412
Gray #2064
White #2447

92%
27%
27%
53%

85%
35%
44%
52%

.89
.43
.36
.44

 

U values - BTU/hr/sq. ft./°F/Sq. ft. of skylight opening

.

Winter Heat Loss
24km/h wind

Summer heat gain
12km/h wind

single glazed

1.2

0.8

double glazed

0.7

0.5

 
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