Can be used around windows and doors or to terminate a NextStone panel application that will not be wrapping around a corner. In Original Package Additional Details ------------------------------ Warranty: 20 Year Limited Warranty. NextStoneTM products come with a 20 year warranty against blistering, peeling, corrosion, rust, rot, delamination, flaking or excessive fading. Once NextStoneTM products have been correctly installed they are waterproof and durable; we are confident in the quality of our product and offer a 20 Year Limited Warranty.