Ultrex FiberglassWhat is it?
- A strong, durable, fiberglass proprietary to Marvin
- Used for the exteriors of Elevate products and the interiors and exteriors of Essential products
Not all composite materials are created equal. The fiberglass used in Marvin windows and doors is made with lineal fiberglass and thermoset plastics. This is what sets Marvin fiberglass apart from composites made with sawdust, vinyl, and other low-cost materials
Ultrex and Marvin high-density fiberglass are created through a process called pultrusion. Unlike extrusion, where material is pushed through a die, pultrusion pulls material through. The pulling versus pushing action makes it possible for long, lineal glass fibers to become embedded and highly concentrated in the fiberglass as it is pulled through a die. This high concentration of glass fibers results in superior strength. It also contributes to the exceptionally smooth and durable finish.
Marvin fiberglass offers a premium, smooth finish – unlike rough textured finishes on some competitive composite products.
Ultrex and Marvin high-density fiberglass are fundamentally different materials than vinyl with entirely unique properties. Fiberglass is a much stronger material than vinyl due to the base materials that make up fiberglass as well as the process by which fiberglass is created. Fiberglass is significantly more resistant to expansion and contraction, dents or cracks, making it a far more resilient material for windows and doors. In short, it’s able to stand up to daily wear and tear better. Vinyl has a hard time standing up to extreme temperatures, which can weaken the integrity of a window or door, making it more susceptible to water leaks, poor window seals, and overall loss of shape and energy efficiency. Fiberglass is as strong as steel, making it a superior material for building strong, durable windows and doors. Fiberglass is also more fade-resistant and able to handle high temperatures, which is why it is available in darker colors. Contact your dealer to learn more.
There are many factors affecting the cost of fiberglass windows and doors. The size of the windows, for example, directly affects the final cost. Consider, though, that fiberglass windows and doors last, on average, 38 percent longer than vinyl windows*. When considering Marvin products, it is important to note that there is no “good, better, best” model for window options and cost structure. All Marvin windows are manufactured with rigorous standards, including fiberglass windows. Contact your local Marvin dealer to obtain an estimate on fiberglass windows for your next project.
Features our proprietary Ultrex fiberglass exterior paired with warm pine wood interiors.
Both the interior and exterior feature low maintenance and durable Ultrex fiberglass.
Modern windows are built with a Marvin high-density fiberglass exterior and a low-gloss aluminum interior.
Lifestyle influencer Liz Joy turns a fixer-upper into a chic oasis for her family of five.
Expansive windows and doors helped this architect achieve her goal of maximizing natural light while also bringing the outdoors in to her family’s home.
Discover what makes modern design special by taking a closer look at three modern homes, with modern characteristics highlighted by Marvin Architectural Consultant Marco Vincent.
Connect with a local Marvin dealer to explore the strength, durability, and proven performance of Ultrex Fiberglass.
You have a lot of choices when it comes to new construction and replacement windows and doors. Some composites are often less expensive, but it’s not always about the immediate cost.
Marvin products are covered by a Limited Lifetime Warranty providing peace of mind that Marvin products will last the entire time you live in your home.
Marvin experts are experienced in working with architects, builders and homeowners to ensure your vision becomes a reality.