Renewal by Andersen®'s Innovative Fibrex® Frame

Green Seal Certified, energy efficient, low maintenance with slim, sleek profiles and 22 standard color options… Renewal by Andersen^®’s innovative Fibrex^® frame for replacement windows is in a class of its own.

Fibrex^® material for replacement windows from Renewal by Andersen^® combines the strength, insulating capability, and stability similar to wood, with the low maintenance features of vinyl to last longer, look superior, and perform better. Providing more glass area with less bulky framing, and 22 standard color options, Fibrex^® gives you the opportunity to take advantage of great views and customize your Renewal by Andersen^® window replacements for a perspective that is unique to you and your home.

The invention and patent of Fibrex^® material initiated from Andersen Corporation’s strong tradition of innovation in residential windows and doors. Today, Fibrex^® stands apart from all other window frames in areas like thermal expansion, stiffness, pressure resistance, thermal conductivity, and decay. Made of an exclusive composite of wood fibers encapsulated by thermoplastic polymer, Fibrex^® is engineered to perfection. Not only can Fibrex^® withstand the test of time in the harshest of climates, it is warranted to not flake, blister, pit, crack, peel, or corrode, eliminating the need to replace or scrape and repaint the surface.

Aside from countless design possibilities, Fibrex^® frames have contributed to making the Andersen Corporation the first and only Green Seal Certified window manufacturer. When you shop here for the best value replacement windows, you’ll find that Renewal by Andersen^®’s engineered Fibrex^® replacement window framing material was designed to meet the needs of today’s homeowners, along with the ever-evolving needs of our environment. From double-hung windows to picture windows, Fibrex^® will frame a lifetime of trouble-free maintenance and lasting beauty.