A Primer on the Manufacture of Fibrex® Material

A Primer on the Manufacture of Fibrex® Material

June 27, 2019

Wood and vinyl are good window framing materials, but they are far from flawless. The former is susceptible to rot while the latter lacks enough rigidity to remain structurally sound during extreme temperature swings.

These downsides are why we invented the Fibrex® material. First developed in the ‘60s and perfected in the ‘90s, this exclusive product is arguably Renewal by Andersen® of Milwaukee’s biggest selling point. Below is the lowdown on the manufacturing process of this engineered composite window material.

Giving Unused Lumber a New Lease on Life

The mass production of windows and doors creates a ton of material waste since milling intricate profiles only requires portions of lumber. Instead of disposing of them, we reclaim the unused pieces, turning them to vital ingredients in the manufacture of Fibrex. This practice has saved more than 90 million board feet of lumber from getting harvested.

Mixing Reclaimed Wood Fibers and Proprietary Polymers

Our Fibrex material consists of 40% reclaimed wood fiber by weight and 60% thermoplastic polymer. We dry the wood fibers to remove all of the moisture and heat the polymers to a certain temperature. Then, we mix both ingredients.

Microscopically, the wood fibers and polymers bond and create a new compound. With the right amount of pressure, we are able to make the liquid polymer fill and encase each individual cell of a fiber. Afterward, the reinforced wood fibers come together and form a durable material to resist moisture and stay rigid.

This advanced manufacturing process allows our window frames and the grilles of our patio doors hardly change despite decades of use and weather exposure.

Customizing Profiles and Colors

Renewal by Andersen of Milwaukee’s patented composite material is extruded, which is why can be made in different sizes and shapes. Our extrusion process allows us to apply practically any color permanently.

Thanks to Fibrex material, the customizability of our windows are closely similar to that of ProVia® entry doors. We offer more than 16 specialty window configurations and dozens of color combinations to bring your dream products to life.

Arrange your consultation with Renewal by Andersen of Milwaukee to see a sample of our exclusive Fibrex material with your own eyes. Call us at (262) 522-3034 today to get a free estimate in Milwaukee or any neighboring community.

Hear From Our Customers

I cant express how happy we are with choosing Andersen for our window installation. Our sales representative was knowledgeable with product and answered any questions we had without hesitation. I did also fill out a survey that was sent in an email, but sadly I failed to personally name the two gentlemen that performed the actual installation. Barrett and Francisco were our guys, and let me tell you, they were outstanding!!! They did Excellent work and were professional as well as efficient and made this a smooth, none evasive process for us. I strongly recommend this company and these installers to anyone in need of windows!!! My husband and I could not be more pleased we chose Andersen for replacing our windows!!!

Jason and Brett did an awesome job installing our doors. We had separate installers a month earlier for our windows who also did a fantastic job. They were all very professional and cleaned up almost better than the area looked before the installation! Since these were both jobs that took more than one day the installers were great at keeping us informed on the status of where the project was at along the way.

This was a great crew to work with. Both the original install manager we worked with (Jay) and the install team (Daniel, Mason, Tony, Ethan, and Jose). Everyone was very professional and knowledgable. They answered all my questions and the end result on the house is great. In 3 days they replaced an old bay window with a new bay window, a set of french doors on the patio with a sliding patio door, and our old front door with a new front door and storm door.

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