Does anyone know why a roof covered with solar panels wouldn't apply to credit 7.2: Heat Island Reduction--Roof? The USGBC allows it to be used toward credit 7.1 where a roof with solar panels is used to shade a parking area, but not toward 7.2.
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Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11477 thumbs up
December 30, 2010 - 10:52 am
Solar panels do help you with SSc7.2, in the sense that they are considered appurtenances and are not counted as part of your roof area. So use of solar panels effectively reduces the area that you need to consider for other measures.
Denise Shimabukuro
Design Partners Inc.50 thumbs up
January 10, 2011 - 2:30 pm
does anyone know if the same applies to a green roof application as well?
Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11477 thumbs up
January 10, 2011 - 2:34 pm
Denise, green roofs are a key way to earn SSc7.2. I'm not sure if that's your question, though -- can you clarify?
Denise Shimabukuro
Design Partners Inc.50 thumbs up
January 10, 2011 - 2:59 pm
sorry, i meant for option 1 of ssc7.2. If I go the reflective materials route, am i able to not count green roof and photovoltaic panels as part of my total roof area?
Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11477 thumbs up
January 10, 2011 - 3:26 pm
Denise, Option 3 is a combination of Options 1 or 2. So it's not either/or.
John Kinch
20 thumbs up
March 23, 2011 - 4:36 pm
To clarify,
We have existing solar roof shingles which cover approximately 50% of our roof. Are solar shingles still considered appurtenances? Because of the slope and the weight load we cannot do the green roof option, though we are considering the white roof option for the other portion of it.
Thanks!
David Posada
Integrated Design & LEED SpecialistSERA Architects
LEEDuser Expert
1979 thumbs up
March 24, 2011 - 12:41 pm
That should work - your solar shingles in this case would be considered mechanical equipment, which you subtract from your total roof area, and use white/ high SRI roof for 75% of the remainder.