That thread is for New Construction, I am working on a Commercial Interiors project. My beef is that most of the other paths in this credit talk about "the existing" whatever (site drainage, hardscape, landscaping, etc), where-as this path (5) seems cut and pasted from the NC credit. The existing roof is white. You can't get more reflectance than that. We shouldn't be required to send a sample to a lab. A photo should suffice to prove this "beneficial characteristic." Getting the SSc1 for NC is much easier, maybe we should've built a new building instead of remodeling an existing one? (Read, sarcasm.)
We could do a "best guess" as to the roofing material here?