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Step 3: Window Technology

Window technology has made significant advancements over the past decade, and there are now a whole host of choices for your home. As part of your window buying process, it’s important to know what makes a good window. In this section of the buying guide, we’ll look at:

Window Frames:

The frame is the first place to check for quality. In the past, most windows were made from aluminum or wood, but today most modern windows are built from strong, insulating PVC polymer. Buying a window with a weak frame can lead to trouble. A weak frame can lose its shape over time causing the sash to operate poorly. The result? Air or moisture will leak into your home.

How can you identify a strong window frame?

If your new windows have numerous chambers, thicker PVC walls and steel reinforcement, they will maintain their structural integrity for a long time.  This will help your windows operate optimally, and you’ll enjoy energy efficiency for many years.

Window Weatherseals:

Next, count the weatherseals located between the sash and the frame.

More weatherseals, and better quality of weatherseals, will keep the air and moisture out of your home, keeping the interior comfortable and energy efficient.  Extra weatherseals are often referred to as “secondary” weatherseals and function to support the “primary” weatherseal.

Also check the quality and thickness of the weatherseals.  The thicker the weatherseal, and the greater contact between the weatherseal and the PVC, the better the weatherseal will perform over time.

Window Hardware:

Hardware is a very important part of the construction of your window. Hardware includes the hinges, operators, locks, keepers – all the pieces that make your window operate properly.  Look for hardware made by well-known manufacturers with solid reputations for quality.  Beware of “knock-off” hardware that may be made of inferior materials or to inconsistent standards.

Glass Technology:

Window glass has advanced significantly over the last several years, with glass companies spending millions of dollars inventing new glass coatings to achieve better thermal performance. The coatings are applied to one or more of the surfaces of the glass pieces within the sealed unit.  Some of the more popular sealed glass unit options are:


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Vinyltek products are tested to meet or exceed the Canadian Standard Association (CSA) A440 standards, as well as the American Architectural Manufacturer Association (AAMA), the National Fenestration Ratings Council (NFRC), and Energy Star® standards.

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