The product uses 95% reclaimed material in its manufacture. It offers enhanced durability, UV protection, and wind and hail resistance. The Enviroshake composite blend is a mixture of post industrial plastic(s), recycled rubber elastomers and cellulosic fibre materials. What distinguishes the Enviroshake is its formulation and the process that produces this durable product. According to the manufacturer, the product will not warp, rot, crack, or blister; is maintenance and worry free; offers a lifetime warranty; is competitively priced; and is fire retardant.