Integrity by Marvin Wood Ultrex & Ultrex Windows
Integrity® windows and patio doors by Marvin® are made of Ultrex®, a patented fiberglass that is eight times stronger than vinyl. Marvin also makes Integrity in wood clad with Ultrex. Both are featured at Dolan's. Come see the long-lasting, energy-saving quality at your nearest Dolan's. Remember, we are your green building experts.