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NC-2009 SSc7.2: Heat Island Effect—Roof
See LEEDuser’s guidance on NC-2009 SSc7.2 »
SRI for light-colored wood
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FAQs about SSc7.2:
We don't know the SRI value of some roofing materials we are using. What should we do?
Do balconies and terraces need to be counted towards the roof square footage?
How does one calculate the square footage of a pitched roof?
Yetsuh Frank
DirectorYR&G
23 thumbs up
February 10, 2012 - 2:30 pm
George,
SRI for natural materials are a little harder to come by because they vary for each sample. The closest thing I have seen is the data in this document- which includes an SRI of roughly 22 for brown painted wood shingles.
http://www.fsec.ucf.edu/en/publications/html/FSEC-CR-670-00/
Regards.
Maya Karkour
EcoConsulting872 thumbs up
February 14, 2012 - 8:40 am
Thanks Yetsuh,
So I think one should paint his wood white in order to achieve a better SRI, because 22 seems to be somewhat low!
Regards..
Yetsuh Frank
DirectorYR&G
23 thumbs up
June 25, 2012 - 5:50 pm
George,
The toolkit now includes SRI studies performed for "Certi-labeled" cedar shingles. The numbers are pretty good, SRI of 61-64. These studies are only applicable to certi-labeled shakes or shingles and I am not certain of their availability but this data should meet the requirements for SSc7.2.