Table 8 Shading Coefficient and Short-wave Radiant Fraction for Blinds and Curtains
|
Shading device
|
Shading Coefficient
|
Short-wave Radiant Fraction
|
|
|
|
|
|
Dark green open-weave plastic blind
|
0.81
|
0.5
|
|
Venetian blind
|
0.61
|
0.3
|
|
White cotton curtain
|
0.54
|
0.3
|
|
Cream Holland linen blind
|
0.40
|
0.3
|
|
Mid-pane Venetian blind
|
0.44
|
0.4
|
|
(From BRE data)
|
|
|
|
|
|
|
|
Net curtain (fine)
|
0.76
|
|
|
Net curtain (open weave)
|
0.85
|
|
|
Venetian blind (open)
|
0.83
|
|
|
Venetian blind (closed)
|
0.56
|
|
|
Light curtain (closed)
|
0.49
|
|
|
(From ETSU data for white room 1987)
|
|
|
Note: A shading coefficient of 0 means full shading, and a coefficient of 1 means no shading.
