GreenSlope fills low spots to create positive slope over a variety of roof substrates. It is made up of highly durable recycled rubber granules mixed with styrofoam beads. It is convenient to use; mixing readily with a polyurethane binder to create a time-tested trowel grade material that is easily shaped and worked. The cured material is similar to that of a running track or playground surface and can withstand tough climates as well as heavy foot traffic. It is strong and durable, offering superior UV resistance and longevity. Low VOC. Can be applied over or under the roof membrane. (5 gallon pail covers 9 square feet at 1 inch thick.)