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A Quick Guide in Understanding SHGC-Rated Windows

It’s important to understand how SHGC ratings work in windows, as they determine their energy efficiency in your home. SHGC (Solar Heat Gain Coefficient) ratings help you find out how much solar radiation passes through the window and affects how much heat is retained inside your home. 

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If you want to improve your home’s energy efficiency and comfort, you need to know how you can get an SHGC-rated window that’s suitable to your local environment. As a professional window and roof repair contractor, Gresham Roofing and Construction shares their insight:

Why You’ll Benefit More From SHGC-Rated Windows

Understanding the SHGC ratings helps you determine a window’s energy properties and know which is the best balance for your home. The NFRC label can be found in all ENERGY STAR®-qualified products, making it easy for homeowners to look for quality windows. Having quality windows with a good SHGC value will also decrease the instances of hotspots or drafts in a room. This means you won’t have to rely on your HVAC system as much to keep your home cool and comfortable, so you get less energy consumption and lower utility bills. 

How Are SHGC-Rated Windows Tested?

You can always inquire your trusted window and roof replacement contractor about what type of SHGC-rated products they’re offering. Typically, before a window product is rated, it’s tested, certified, and labeled by The National Fenestration Rating Council (NFRC). Along with the SHGC rating, they also assign the U-factor on qualified products based on their energy performance ratings. The U-factor is given to estimate a window’s heat loss, with lower values providing greater insulation and heat resistance.

A window’s solar heat gain coefficient rating is the number that shows the fraction of incident solar radiation transmitted and absorbed by a window. It’s rated as a number between zero and one, with higher values meaning the window is more effective at collecting solar heat during the winter while lower values mean less solar heat gets transmitted because it blocks heat gain from sunlight.

When it comes to reliable window replacement and emergency roof service, Gresham Roofing and Construction is the only name to trust! Call us at (503) 205-9477 or fill out our online contact form to get started.

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