Description

This addendum changes the daylighting definitions tocoincide with those in ASHRAE/IESNA Standard 90.1 to facilitateconsistent use of these terms. Some changes are semantic,such as changing from daylight zone to daylight area andchanging from adjacent to vertical fenestration to primarysidelight area. For the daylight area under skylights and underroof monitors, geometric relationships between obstructions,heights, and distances from glazing are provided to allow daylightareas to extend beyond obstructions where appropriate.Clerestory was deleted since roof monitor sufficientlydescribes roof elements other than skylights. The changes totoplighting are not substantive but are proposed to utilize thesame text as ASHRAE/IESNA Standard 90.1 to ensure consistentuse. Effective aperture has been replaced with sidelightingeffective aperture, again to coincide with ASHRAE/IESNAStandard 90.1. For background documentation on the analysisused to derive sidelighting effective aperture, refer towww.h-m-g.com/ASHRAE_Daylighting.

Product Details

Published:

2010

ANSI:

ANSI Approved

File Size:

1 file , 1.4 MB