Energy Efficiency

Environmentally friendly: inside and out


FiberFrame fiberglass windows and doors have less thermal conductivity than any other window material contributing to our energy efficiency. Therefore, they prevent heat and cold coming from outside into a building’s internal environment. Our fiberglass frame, in combination with energy efficient glass, brings savings in energy bills and increased comfort to the interior of the building.


Our standard dual pane insulated glass package consists of LowE glass, argon gas, and warm edge spacers; keeping rooms cool in the summer and warm in the winter. Upgrade to our optional triple pane insulated glass package with LowE glass for the most protection from the elements.


Learn more about FiberFrame window performance.

energy efficiency

Fiberglass Windows

Top 3 reasons fiberglass windows excel at energy efficiency.


Fiberglass has almost zero thermal expansion, essentially the same as glass itself, which means tighter seals against weather and always a true fit.


Fiberglass can withstand all of the outside elements and harsh weather. It will never rot, rust, corrode, warp, crack, dent, or split.


Fiberglass has low thermal conductivity which means that it doesn’t allow heat or cold from outside into a building’s interior.

Learn more about fiberglass and why it is better than other window materials.