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  1. Roofs

    https://greenhome.osu.edu/passive-design/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

    https://greenhome.osu.edu/energy-efficiency/water-heating

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

  3. Soil Testing

    https://delaware.osu.edu/program-areas/master-gardener-volunteers/soil-testing

    calcium (Ca), magnesium (Mg), pH, cation exchange capacity, lime requirement index and base saturation. ...