I am trying to find a white decorative rock material with a high SRI for a roof application and am having a very difficult time finding any suppliers that have determined an SRI for this type of product. I've search the LBL and cool roofs site with no luck. Does anyone know where I can find suppliers of this type of material who can provide an SRI. The LEED reference guide in the table on page 122 indicates there is a "white coated gravel on built up roof" material - and the table references the LBL Cool Roofing Materials Database - but I can find no such material in the database. Any help is much appreciated.
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Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11475 thumbs up
November 12, 2010 - 12:21 am
I've looked for this in the past, not to try to specify the rock, but just to try to find an SRI value for white ballast. I've come up empty. Sorry not to be of more help.Can you find an agreeable supplier who sees the value in testing their material?