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EBOM-2009 IEQc2.4:Daylight and Views

Daylight & Views Supplemental Spreadsheet: VIEWS, OPTION 2

In regards to the Daylight & Views supplemental spreadsheet which is now available under the 'Credit Resources' link in LEED Online: When selecting to pursue Option 2, Views - this spreadsheet contains the following language under tab F "Views": "1 Measures are defined as follows: Measure 1. Multiple lines of sight to vision glazing in different directions at least 90 degrees apart Measure 2. Views that include at least 2 of the following: 1) vegetation, 2) human activity, or 3) objects at least 70 feet from the exterior of the glazing Measure 3. Access to unobstructed views within 3 times the head height of the vision glazing Measure 4. Access to views with a view factor of 3 or greater, per the Heschong Mahone Group study, Windows and Offices; A study of Office Worker Performance and the Indoor Environment. (Refer to page 47, http://www.h-m-g.com/_vti_bin/ shtml.dll/downloads/Daylighting/day_registration_form.htm)" Although these requirements have never been mentioned previously in the reference guide - are these now required in order to document compliance with this credit? If yes, are all areas with views required to comply with all 4 measures, or should each view comply with at least 1 measure? For buildings in dense urban areas, would a view of an occupied adjacent building with windows be considered 'Measure 2: A view that includes human activity, and objects at least 70 feet from the exterior of the glazing?

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Tue, 11/15/2011 - 02:22

Jason, I haven't double-checked the spreasheet so I'm not sure about this, but those sound like the Exemplary Performance requirements for Views -- and thus most projects don't need to document them.Does that make sense?

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