Coming Soon! New and Improved Website
We’re designing an easier way to find energy-efficient windows for your home. With incremental changes to the Efficient Windows Collaborative website, we’re simplifying the process for homeowners to choose the right windows for their needs. For starters, we have a new, fresh logo that integrates the brand of the National Fenestration Rating Council. Stay tuned for more updates and check back often!
Window Selection Tool
This tool provides unbiased information from the National Fenestration Rating Council (NFRC) on the benefits of energy -efficient windows for new construction and replacement windows.
The Window Selection Tool will take you through a series of design conditions pertaining to your design and location. It is a step-by-step decision making tool to help determine the most energy efficient window for your house.
The Efficient Windows Collaborative (EWC) is powered by the National Fenestration Rating Council (NFRC), a nonprofit organization that provides independent energy-performance ratings for windows, doors, and skylights—often referred to as fenestration products. NFRC has a voluntary program that provides fair, accurate, and credible energy-efficiency ratings for fenestration products that helps consumers make informed purchase decisions.
The EWC provides unbiased information and education to the general public on the energy efficiency, technical, and human considerations that influence window selection and use. The EWC collaborates with allied organizations, educational institutions, and government agencies that promote energy efficiency in residential windows.