Solar Systems and Roof Materials 7.4.1. All projects shall install and maintain an onsite renewable energy generation system to provide a minimum of 20 percent of the Project’s non-residential electrical needs and 10 percent of the Projects residential demand. 7.4.2. Use roofing materials that have a Solar Reflectance Index (SRI) equal to or greater than the values in the table below for a minimum of 75 percent of the roof surface of all buildings within the Project or install a green (vegetated) roof for at least 50 percent of the roof area of all buildings within the Project. Combinations of SRI compliant and vegetated roof can be used provided that they collectively cover 75 percent of the roof area of all buildings. Roof Type
Slope
SRI
Low-Sloped Roof
< 2:12
78
Steep-Sloped Roof
> 2:12
29
Windows/Glazing See Sections 4.7.1-4.7.2. Architectural Details for regulations that will assist Projects in reducing internal heat gain. Pools and Jacuzzis 7.5.1. All pools shall be installed with a water-saving pool filter. 7.5.2. A leak detection system shall be installed on all swimming pools and Jacuzzis. Stormwater Treatment and Flow Attenuation Projects shall be designed to manage and capture stormwater, in order of preference for infiltration, evapotranspiration, reuse, and/ or high pollutant removal treatment of all of the runoff on site to the maximum extent feasible. 7.6.1. Residential projects of five units or more and non-residential projects shall develop and implement a Low Impact Development (LDI) plan that shall infiltrate, reuse, evapotranspire, or highly treat onsite stormwater through stormwater management techniques allowed pursuant to the Best Management Practices Handbook described in Appendix A-03. 7.6.2. The onsite stormwater management techniques shall be properly sized, at a minimum, to infiltrate, store for reuse, evapotranspire, or highly treat, without any runoff leaving the site to the maximum extent feasible, at least the volume of water that results from:
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