Material science. Superior performance.

A comparison of window materials — engineered for performance, built for lasting value.

Window frame material comparison: Andersen Fibrex composite, vinyl and wood, across seven performance benefits.
Material performance benefits	Fibrex® composite	Vinyl	Wood
Insulating properties Helps improve energy efficiency year-round.	Yes	Yes	Yes
Low maintenance No painting, staining or sealing required.	Yes	Yes	No
Resistance to decay and corrosion Won't rot, corrode or deteriorate over time.	Yes	Yes	No
Structural rigidity Superior strength for long-term structural performance.	Yes	No	Yes
Durable Built to withstand the elements for decades.	Yes	No	Yes
Color and finish choices Wide variety of interior and exterior options.	Yes	No	Yes
Maximum glass area More glass, less frame for better views and natural light.	Yes	No	Varies

2x stronger than vinyl Advanced fiber technology delivers exceptional strength and structural integrity.
150° temperature performance Low conductivity helps improve energy efficiency and withstands extreme heat and cold.
12x thicker finish than painted vinyl More glass, less frame for enhanced views and more natural light.

Figures above are Andersen’s, based on Andersen testing of exterior white finish vs. vinyl.

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