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FIBREX® Material Overview

Patented by Andersen, FIBREX® is a unique and durable material that is used in a variety of Andersen products.

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Andersen Replacement Windows | FIBREX®

When patented in 1992, FIBREX® was a game changer for the window and door industry. Exclusive to Andersen, this composite material is made using real wood fiber which gives it tremendous strength and allows for narrower frames.


Narrower frames = more glass area


With this composite material comes other advantages. It is a low-maintenance product and has very little expansion and contraction from weather changes, making it great for all weather applications and extreme weather applications. It also allows for darker colors than vinyl because of it’s ability to absorb heat up to 150°F.

Other Benefits


With superior insulation and high performance glass, Fibrex® material keeps your home cool in the summer and warm in the winter. 

Low Maintenance

Never needing scraping or painting, Fibrex® doesn’t rot or mold or decay, giving you years on hassle free beauty.

Environmental Impact

Andersen uses 40% reclaimed wood fiber in Fibrex®, making it better for the environment than many windows.

Official Andersen Window Specialist

Replacement NC has a wide variety of Fibrex® windows and doors available, and matches it with the best customer service and installation in Central North Carolina. Find out how you can get Fibrex® windows or doors in your home today. 

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Looking For Windows?

Check out our variety of great windows and doors from Andersen, including those made from Fibrex® materials. Find your perfect match today.


Looking For Doors?

Not only is Replacement Central North Carolina's leader in replacing Andersen windows, we have patio and storm doors in a variety of colors and styles to fit any motif and home.

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Proudly Serving

Raleigh, Durham, Greensboro, Winston-Salem, Burlington, Mebane, Asheboro, Morrisville, Cary, Chapel Hill, Hillsboro, Pittsboro, Lexington, High Point, Kernersville, Browns Summit, Graham, Saxapahaw and surrounding area.