Understanding NFRC Ratings: Choosing the Best Windows for Energy Efficiency

Home exterior showing a worker installing a replacement vinyl window, emphasizing window energy performance and thermal efficiency.

New windows are an investment in your home, and you want the best value for your money. You already know that new windows can improve your home’s curb appeal, but did you know that they can also increase your energy efficiency? Yes, new windows are able to better protect your home from the outdoor elements and keep your cooled or heated air inside. National Fenestration Rating Council (NFRC) ratings can help you choose the best windows for energy efficiency for your home. Here’s what you need to know.

What Is the NFRC and Why Does it Matter?

The National Fenestration Rating Council (NFRC) is a nonprofit that works independently of corporations and government to determine the energy efficiency of windows, doors, and skylights. You can use this information and their ratings of different types of windows to choose the best ones to install in your home. You can use the ratings as a guide to separate the quality of one window from another.

Decoding Key NFRC Metrics

NRFC ratings use some key metrics. These include:

U-Factor

The U-factor describes how well a window keeps heat from escaping your home. When a window has a lower U-factor number, it offers better insulation than one with a higher number and allows less heat to leave your home. If you live in Florida, you rely on your air conditioner to keep your home cool, and you don’t want it escaping through the windows.

Solar Heat Gain Coefficient (SHGC)

The SHGC determines and measures the amount of solar radiation that the window allows into your home. This means how much heat the windows allow into your home due to the solar radiation. You want to find a window with a lower SHGC that lets less heat into your home. As a Florida homeowner, you know you don’t want any additional heat inside, forcing your air conditioner to work harder.

Visible Transmittance (VT)

The VT measures how much sunlight or natural light that your windows allow into your home. If you want more natural light, you need a window with a higher VT to get it. However, more natural light can mean that your home is getting more heat. You need to find a balance between the additional heat and the amount of natural light you let in.

Air Leakage (AL)

Through cracks in the window assembly, air leaks out of your home around your windows. But how much air is escaping? The AL number tells you how much leakage is expected. With a lower AI number, less air is leaving the home, and you won’t have a draft like you might have in the past. Your window’s AL number has a direct impact on how energy efficient your home is.

How NFRC Ratings Impact Your Florida Home

NFRC ratings can help you choose new windows for your home that provide you with better energy efficiency. This can help lower your utility bills and the work that your air conditioner needs to do to keep your home cool. With high-quality windows with the right NFRC rating, you save money and remain more comfortable throughout Florida’s long, hot summer.

Choosing the Right Windows With Absolute Window & Door

As a locally-owned and operated business, Absolute Window & Door treats you like a friend and neighbor. Our staff can help you choose the right windows for your needs and your budget. We can help you understand the NFRC ratings on the windows we stock and make the right choice for your home.

Contact Absolute Window & Door for a Consultation 

Absolute Window & Door can help you choose the best windows for your home. Our team can answer all your questions and help you with the selection. Contact us now.

 

Image credit: // Shutterstock // SpeedKingz

Quality Products at Competitive Prices
Join Over 20,000 Satisfied Customers in Southwest Florida
Receive a Free Quote Today
Let's Get Started