This addendum changes the daylighting definitions to
coincide with those in ASHRAE/IESNA Standard 90.1 to facilitate
consistent use of these terms. Some changes are semantic,
such as changing from daylight zone to daylight area and
changing from adjacent to vertical fenestration to primary
sidelight area. For the daylight area under skylights and under
roof monitors, geometric relationships between obstructions,
heights, and distances from glazing are provided to allow daylight
areas to extend beyond obstructions where appropriate.
Clerestory was deleted since roof monitor sufficiently
describes roof elements other than skylights. The changes to
toplighting are not substantive but are proposed to utilize the
same text as ASHRAE/IESNA Standard 90.1 to ensure consistent
use. Effective aperture has been replaced with sidelighting
effective aperture, again to coincide with ASHRAE/IESNA
Standard 90.1. For background documentation on the analysis
used to derive sidelighting effective aperture, refer to
www.h-m-g.com/ASHRAE_Daylighting.
| ANSI : | ANSI Approved |
| File Size : | 1
file
, 1.4 MB |
| Note : | This product is unavailable in Russia, Belarus |
| Published : | 2010 |
