Umit,
I believe that LEED NC 2.2 addresses how to take credit for "cool roofs". It states on page 180, "the Proposed design can use a modeled reflectivity of 0.45...versus the default reflectivity value of 0.30 which will be modeled for the Baseline Design.".
This may be a case of necessary but not sufficient but I hope it helps.
Umit,
I believe that LEED NC 2.2 addresses how to take credit for "cool roofs". It states on page 180, "the Proposed design can use a modeled reflectivity of 0.45...versus the default reflectivity value of 0.30 which will be modeled for the Baseline Design.".
This may be a case of necessary but not sufficient but I hope it helps.
Eric Youngson