Design primer part 5 - solar shading | Archive Titles

Table 1: Typical solar gain factors for various shading devices
Heat absorbing glass	0.25-0.4
Clear solar control glass	0.3-0.5
Internal cotton roller blind	0.3-0.4
Internal Venetian blind	0.4-0.5
External canvas roller blind	0.1-0.15
External louvre or shade	0.1-0.15