06/08/2026
FIBREX FACT 🤓
Fibrex® is engineered from a blend of 40% wood fibers by weight and 60% thermoplastic polymer, with a significant portion of both components reclaimed from Andersen’s own manufacturing processes. This means that Renewal by Andersen reuses leftover wood fiber from traditional wood‑window production instead of sending it to waste. The polymer portion also includes reclaimed material, reducing the dependency on new raw plastics. This closed‑loop approach helps Andersen significantly reduce landfill waste and raw material consumption.
Because the reclaimed wood fiber is bonded at the molecular level with the polymer, Fibrex® performs like a high‑end composite. It resists rot, fungal growth, and moisture- extending the lifespan of the product and it withstands harsh climates without warping or degrading, reducing the need for premature replacement. Longer lifespan = fewer resources used over time, which is a major sustainability win.
Fibrex® also contributes to sustainability long after installation. It blocks thermal transfer, which helps reduce heating and cooling energy use. It maintains tight, stable seals because it expands and contracts very little, improving long‑term energy performance. Improved insulation means a smaller environmental footprint for the home year after year.
Because the color is blended into the Fibrex composite, the frames do not require painting or chemical treatments- reducing VOC emissions. This means fewer chemicals in your home and fewer emissions in the environment.
