Integrity’s fiberglass windows are made with Ultrex — a state-of-the-art pultruded fiberglass that is eight times stronger than vinyl, three times stronger than wood/vinyl composites and as strong as steel. Integrity offers an All-Ultrex fiberglass line of products, as well as a Wood-Ultrex line that combines an real wood interior with a virtually indestructible fiberglass exterior. Both lines are available with numerous design and glazing options for both new construction and the remodel and replace market, and are available in six exterior finish colors (including darker colors such as Ebony, which most vinyl manufacturers cannot offer due to durability and fading concerns).