The facts prove it. Ultrex fiberglass is eight times stronger than vinyl and three times stronger than vinyl/wood composites. It resists fading, chalking, peeling and cracking, giving you unparalleled strength and durability. We’re constantly testing Ultrex to prove it’s the toughest window material available.
WHY INTEGRITY FIBERGLASS WINDOWS AND DOORS?
Integrity windows and doors are made with Ultrex®, a pultruded fiberglass we’ve patented that outperforms and outlasts vinyl, roll-form aluminum and process to manufacture high-demand windows and doors that endure all elements without showing age or wear.
Our values and work ethic are forged by the communities where we’re proud to live and work. When you choose Integrity windows and doors, you support a small-town, family-owned and pultrusion other fiberglass composites. We use Ultrex and our proprietary operatedcompany with deep roots in the community; some Marvin employees are fourth-generation, following the family tradition. We share profits with our employees; we support our communities; we treat our dealers and customers fairly and with respect. That’s Integrity.
Wood-Ultrex Windows and Doors
With a strong Ultrex Fiberglass exterior paired with a rich wood interior, our Wood-Ultrex has both strength and beauty.
All Ultrex Windows and Doors
Constructed with Ultrex from the inside out, our All Ultrex offers outstanding strength and durability.