Manufactured with specially formulated polyurethane and combined with fire retardants and UV inhibitors, NextStone™ insulated stone siding panels and accessories are cast from actual stone and rock patterns. Developed in 1997, the panels hold a US design patent and the unique manufacturing process gives NextStone™ products the most authentic faux stone siding look on the market today. NextStone™ siding panels can be easily installed at home with no formal training. The innovative panel has been designed to totally rid the need to hire masonry installers, professional siding installers or skilled laborers. Each of the easily managed, lightweight panels only weighs about 1 lb. per sq. ft., removing the need to pay for additional materials, equipment or labor. NextStone manufactures a quality exterior building product and can also be used as interior decorative wall panels.