Every ENERGY STAR® qualified window, door, and skylight is independently tested and certified to perform at levels that meet or exceed strict energy efficiency criteria set by the U.S. Department of Energy.
FiberFrame® windows ordered with specific insulated glass packages meet and/or exceed these performance targets.
ENERGY STAR® requirements for windows and doors vary by climate zone. FiberFrame® builds your replacement windows and doors based on the ENERGY STAR required specifications for your geographic region. Your dealer will know exactly what combination you need for your location.
Add Comfort
Put an end to drafty windows in the winter, and steamy rooms in the summer. With FiberFrame® fiberglass windows and doors that meet ENERGY STAR® guidelines, you’ll feel comfortable all year round. Interior glass stays warmer in the colder months, while heat gain is reduced in the warmer months.
Reduce Costs
ENERGY STAR® qualified windows and doors can save you up to 7-24% on energy costs depending on your home size and location compared to non-qualified products. Save money, use less energy, reduce your impact on the environment.
Protect Valuables
As an added benefit of the ENERGY STAR® qualified glass, your furniture, art, and valuables are protected from fading and discoloring caused by harmful ultraviolet light. The glass coatings act like a sunscreen and protect your home.