The Apex Siding System is pultruded-fiberglass siding and trim with Ultrex, designed to be tougher than fiber cement, but exude the beauty of natural wood. It also has been designed to withstand extreme conditions. The siding features an expected life of 50 years or more, and is available in ten rich and enduring colors, in 4- and 7-in. widths, and in either a smooth or wood grain finish. It resists chipping, splintering, fading and warping.