A couple question about SS Credit Heat Island Reduction - Non Roof Measures:

1. None of the materials we are using have been tested for SRI. The project is in Dallas, TX. Does anyone have recommendations for SRI testing of natural materials? What is the ASTM standard LEED requires for non-roof materials?

2. Area shaded by vegetated structures - Can a tree canopy shading a hardscape material be used for this methodology? or does it have to be an architectural structure?

Thank you.