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  1. Roofs

    a roof cool. A composite rating system known as the solar reflectance index (SRI) considers both ... Savings for Flat Roofs with Non-Black Surfaces "Solar Reflectivity (R) & Solar Reflectance Index ... (SRI) by Color" by Dean Steel Buildings- Reflectance and Solar Reflectance Index of different ...

  2. Water Heating

    heater. 20 R-Value An index to measure the water storage tank’s ability to resist heat loss. A higher ...