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Understanding Energy-Efficient Windows Requires Homeowners in Aloma, FL, to Become Familiar With a Few Key Terms

Energy Efficient Windows Aloma FLIf you’re researching energy-efficient windows for your home in Aloma, Florida, you’ve probably come across a lot of terms you may not be familiar with. U-factors? R-values? SHGC? For those not in the industry, it may all blend into an alphabet soup of technobabble. At The Window Depot, we know how difficult it can be to find the right balance between affordability and thermal performance when it comes to energy-efficient windows, especially if you’re struggling to understand the terms being bandied about. All of the PGT and Simonton vinyl windows we offer do an exceptional job of minimizing heat transfer, thanks to their insulated frames and warm-edge glass spacers. Optional high-performance glass options can provide an additional level of performance that will make your new windows some of the most energy efficient around.

Sorting Through the Confusion

To help our customers make informed decisions about their windows, here are a few of the more commonly used terms:


The R-value measures the insulation performance of a window. You can think of each R unit as an additional blanket. The higher the value, the more efficient the window.


This is the rate at which a window conducts non-solar heat flow. The lower the U-factor, the more energy efficient the window.

Low-E glass

Glass coated in a low emissivity (low-E) film acts like a thermal reflector. For warm climates like ours, the benefit is that it “reflects” the cooler air inside your home, making it easier for your HVAC unit to keep your residence comfortable throughout the summer.


The solar heat gain coefficient is the fraction of solar radiation admitted through the window. A product with a high SHGC rating is more effective at collecting solar heat during the winter. A product with a low SHGC rating is more effective at reducing cooling loads during hotter months. 

To learn more about the energy-efficient windows we can install at your home in Aloma, FL, contact The Window Depot today. You also have the option of visiting our beautiful showroom in Palm Harbor, FL. No matter which option you choose, we’re sure it will be the first step toward a home improvement project that will provide many decades of benefits.

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