Synthetic Roofing Tiles offer an innovative, high-performing product matched with a very upscale, traditional look. They are also a great sustainable option! Synthetic slate roofing tiles are a much lighter and more cost-effective solution than traditional slate. This means there is no need for additional structural support. Synthetic Slate is made by injection-molding petroleum-based materials into metal forms that are cast from authentic slate. Some brands of synthetic slate shingles are manufactured with virgin rubber or plastic, while other products incorporate recycled rubber or plastic, mineral dust, or cellulose fibers. Recycled content usually consists of high-quality post-industrial materials; only a few incorporate post-consumer recycled materials.