Energy Performance Ratings for Windows, Doors, and Skylights
The National Fenestration Rating Council (NFRC) operates a voluntary program that tests, certifies, and labels windows, doors, and skylights based on their energy performance ratings. The NFRC label provides a reliable way to determine a window's energy properties and to compare products.
What Are Different Window Ratings And What They mean
2023年8月21日 · Window ratings — the colorful numbers, letters and insignias often placed in corners of the glass — serve as identifiers to help both homeowners and contractors identify a window’s make, model, materials and efficiency.
Understanding Window Ratings: U-Factor, SHGC, and VT Explained
Window ratings provide valuable information about factors such as U-factor, solar heat gain coefficient, visible transmittance, air leakage, and condensation resistance, all of which can impact a home’s comfort, energy costs, and environmental impact.
Window Energy Ratings: A, B, C Rated Windows Guide
2020年2月11日 · Window Energy Ratings (WER) is a guide to help homeowners choose the most energy-efficient windows for their home & to reduce heat loss. From A-rated windows to E rated windows. Find out more online.
National Fenestration Rating Council | NFRC is the leader in …
The NFRC label helps you compare between energy-efficient windows, doors, and skylights by providing you with energy performance ratings in multiple categories.
Double or even triple panes of glass with inert gases such as argon between them that vastly improve the ability to insulate against unwanted heat flow into or out of the house, depending on the time of year.
Energy Performance Label - National Fenestration Rating Council
The NFRC label helps you compare between energy-efficient windows, doors, and skylights by providing you with energy performance ratings in multiple categories.
Energy Performance Ratings - Champion Window
One of the many factors that homeowners consider when purchasing new windows is the energy performance rating. This rating system tells homeowners how much heat and light can be transmitted through a window. The energy performance rating also shows how much air leaks through windows.
Window Ratings - Efficient Windows Collaborative by NFRC
The Efficient Windows Collaborative’s Window Selection Tool searches replacement window ratings to find the best options for your home. The tool considers each of these three factors, as well as your location and the direction your windows face.
What Do Energy Star Window Ratings Mean? (2024) - This Old House
2024年11月25日 · Energy Star window performance ratings vary by region since windows perform differently in different climates. Areas that have Energy Star-rated products are blue on Energy Star maps. The two factors that vary regionally are the U-factor and SHGC.