window frame material comparison chart

What is Fibrex Material?

Fibrex Material: The Beginning Fibrex material is an Andersen innovation, engineered in the 1960s and 1970s, and perfected and patented in 1992. Today, Fibrex material is the perfect choice for your replacement windows for its strength, stability, insulating, and low-maintenance qualities. This composite blends the best traits of wood and vinyl to create a superior…