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Exploring Replacement Window Frames – Advantages of Fibrex by Andersen

When it comes to selecting window frames for your home, the choices can be overwhelming. From traditional wood to aluminum to vinyl, each material has its unique set of strengths and weaknesses. One material that has gained popularity in recent years is Fibrex. In this article, we’ll delve into the advantages of Fibrex compared to other window frame materials, shedding light on why Fibrex stands out as a superior choice in the replacement window industry.

What Is Fibrex?

Fibrex is a composite material developed by Andersen Corporation, a renowned name in the window and door industry. It is twice as strong as vinyl, performs better when exposed to extreme temperatures, and won’t fade, flake, blister or peel. It’s made up of reclaimed wood fiber and thermoplastic polymer that is fused together and is unique to Andersen. This combination results in a material that inherits the best qualities of both wood and vinyl, giving Fibrex some distinct advantages over other window frame options. Let’s compare Fibrex to wood, aluminum, and vinyl window frames to see exactly where it shines.

Comparing Fibrex with Traditional Wood

Real wood is strong and beautiful, but Fibrex is superior to wood window frames in a number of areas:


Traditional wood frames, while elegant, are susceptible to rot, decay, and insect damage. Fibrex, on the other hand, boasts remarkable durability. It doesn’t warp, crack, or peel like wood, ensuring a longer lifespan and reduced maintenance requirements.

Energy Efficiency:

Wood, being a natural insulator, provides good energy efficiency. However, Fibrex takes it a step further. Its composite nature combines the insulation properties of wood with the low maintenance and energy efficiency associated with vinyl, resulting in a material that enhances the overall energy performance of your home.


Wood frames require regular painting and sealing to protect against the elements. Fibrex, however, is virtually maintenance-free. Its color is baked into the material during manufacturing, eliminating the need for painting. This makes Fibrex an attractive option for homeowners seeking a balance between aesthetics and convenience.

Comparing Fibrex with Aluminum

While aluminum is considerably more resistant to the outside elements making them less likely to warp or rot, and also has a high strength-to-weight ratio, making them hard to dent, Fibrex has three distinct advantages over aluminum window frames.


Aluminum conducts heat and cold easily. This can result in poor insulation, making homes more susceptible to temperature fluctuations. Fibrex, with its wood composite, provides better insulation, helping to maintain a comfortable indoor temperature and reduce energy bills.

Corrosion Resistance:

Aluminum is prone to corrosion over time, especially in regions with harsh weather conditions. Fibrex, being a composite, is resistant to corrosion, ensuring that your window frames remain in top condition for years without succumbing to environmental wear and tear.

Design Versatility:

While aluminum frames offer a sleek and modern aesthetic, Fibrex provides a wider range of design options. A unique advantage of Fibrex is that it can be manufactured to mimic the look of wood without its inherent drawbacks, providing homeowners with the flexibility to choose a style that complements their home’s architecture.

Comparing Fibrex with Vinyl

Vinyl replacement window frames are popular and the most affordable window frame material, but once again, Fibrex beats vinyl in several key areas:

Strength and Stability:

Vinyl frames can be susceptible to warping and sagging over time, especially in extreme temperatures. One of the big advantages of Fibrex, with its wood fibers, is that it maintains stability and strength, ensuring that your windows remain structurally sound regardless of the weather conditions.

Environmental Impact:

Fibrex is an eco-friendly option, incorporating recycled wood fibers and reducing the need for harvesting new resources. This sustainability factor sets it apart from traditional vinyl, making it a more responsible choice for environmentally conscious homeowners.

Color Retention:

Vinyl frames may fade or discolor over time due to exposure to sunlight. Fibrex, with its color consistency throughout the material, maintains its vibrant appearance, enhancing the curb appeal of your home for years to come.

Fibrex Replacement Window Frames Offer Unbeatable Durability and Beauty

While not the cheapest option, in the realm of replacement window frame materials, Fibrex emerges as a standout choice, blending the best features of wood and vinyl. Its durability, energy efficiency, low maintenance, and aesthetic versatility make it a compelling option for homeowners seeking high-quality window frames that can withstand the test of time. While each material has its merits, Fibrex rises above as a modern, eco-friendly solution that seamlessly combines the best of both worlds. Now that you know all of the advantages of Fibrex, consider it for your next window replacement project and experience the perfect fusion of elegance and performance.

At All-Weather Window, Doors & Siding, we carry Andersen windows because we have found them to be one of the best replacement window options for the money. Come visit our Andersen Showroom, the only Andersen Window showroom in KC designed for homeowners and see all of our replacement window options. Plus, you’ll get our experienced Andersen Window installers. Call us at (913) 262-4380 in Kansas or (816) 673-2480 in Missouri or make an appointment online. At All-Weather, it’s all good under the yella umbrella.

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