Fibertec Window and Door Manufacturing can proudly say that we offer some of the lowest U value fiberglass windows and leading energy ratings in the industry of fiberglass windows and doors. Our fiberglass windows and doors have u values as low as U-0.13. All our Energy Star qualified, meeting and exceeding NFRC rating standards which is an important factor to consider when looking for windows that will last.
ENERGY STAR is an international qualification standard for energy efficient products. Products certified by ENERGY STAR such as computer products, appliances, windows and doors, use 20 to 30 percent less energy than required by federal standards. Energy Star qualified windows and doors can help reduce your energy bill costs and are proven to be eco friendly for the environment. ENERGY STAR qualified windows and doors are a great way to increase the energy efficiency of your home. You can find out which windows are most suitable for your home according to ENERGY STAR by viewing this document