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CS-2009 IEQc8.2:Daylight and Views—Views

Exemplary Performance

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BH .
LEEDuser Basic Member
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Hi, I would like to confirm if in point 3 of exemplary performance mean that within a distance of 3 x 42`` (typically) there will be no obstacles like glass walls, furnitures ect. between the desk and exterior view? How should I understand "view factor", there is nothing about it in LEED Guide except this exemplary performance saying "with a factor of 3 or grater". How can I calculate it? Thanks

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Tue, 06/28/2011 - 15:42

In point 3 of exemplary performance, unobstructed view means that no furniture or opaque or translucent material will be between the viewer and three times the head height of the view window. LEED does not count anything above 7'-6" as view window, above that it is called a daylight window. For example, if the window head height is 7', there will be no obstructions back to 21' from this window. If a glass wall is in this location, it must be transparent. Although it is not obvious, there is something about view factor in the LEED Guide. It is in the paragraph following the 4 options of exemplary performance starting with "Measures determined per the Heschong Mahone Group..." and ending with the link on where to download the report that describes view factor. Susann Geithner has also noted this is the post immediately previous.

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