Fiberglass windows are beautiful to behold, and they’re tough enough to stand up to Wisconsin weather, year round. They also have a slimmer profile than wood or vinyl windows, for a better outside view. Some of their benefits include the fact that they’re waterproof, unaffected by temperature — and deliver approximately 8X the strength of vinyl. Thus far in our fiberglass windows series, we’ve covered Pella fiberglass windows. In this installment, we shift our attention to Marvin’s line of fiberglass windows. But first, let’s review the two types of fiberglass that Marvin utilizes in their windows so you have a better understanding of which is best for your home, and your budget. Ultrex® Fiberglass & High-Density Fiberglass Over 25 years ago, Marvin launched Ultrex Fiberglass for use with windows and doors. Since then, they’ve advanced their technology and added a High-Density Fiberglass offering that’s stronger than Ultrex. That said, both types of Marvin fiberglass provide outstanding durability, energy efficiency and strength.  Ultrex Fiberglass is utilized for the exterior of Marvin’s Elevate fiberglass windows and doors,

Pella’s Impervia fiberglass window line is a favorite among Dane County residents. In fact, it’s one of our favorites, too. Fiberglass is a material that’s used for many products — including bridges and boats — because of its durability and strength. This makes it a natural choice as a material for windows. Pella offers a proprietary fiberglass material for their windows, and it’s the strongest material you can choose for your replacement windows Let’s take a look at the benefits of these windows, before taking a peek at window styles and colors … Dependable Durability & Strength Pella’s fiberglass windows are resistant to dents, bends and breaks. In addition, they have virtually zero expansion and contraction, which improves energy efficiency and reduces risk of seal failure. Simply put, these fiberglass windows deliver long-term stability and operation. They’re Virtually Maintenance Free Pella’s fiberglass windows won’t rot or corrode. In addition, fiberglass is a material that’s naturally resistant to water and insects. The need to paint your windows has been eliminated, as fiberglass also resists fading, chipping