DonnerReport120520

Page 40

CBP&D

Integration

2012

Sunshades at Embry Riddle Aeronautical University in Florida http://www.c-sgroup.com/sun-controls/custom/embry_riddle_aeronautical_university

Figure 22 - Exterior Shading example

Regarding light shelves, The Lawrence Berkeley National Laboratory states that light shelves extend the daylight zone up to 2.5 times the window head height. In order for light shelves to be effective, their surfaces must be highly reective and the windows must extend high enough on a wall that the bottom of the light shelf is above human head height. Additionally, it may make sense to use different glazing above and below the light shelves (daylight glazing versus view glazing, as discussed above). Higher-transmittance clear glazing would be better above and lower-transmittance tinted glazing below.

First Cost RS Means does not have costs for many external shading devices. The closest Masterformat category is 08 91 19.10 Aluminum louvers, which is included below.

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