Do You Know Your Window Energy Ratings?



You may have seen the blue ENERGY STAR symbol on products before. ENERGY STAR is the mark of high-efficiency products in Canada, and Polar Windows is proud to be among them. All windows, doors, and skylights that surpass a certain quality performance in Canada earn a high Energy Rating (ER) number.


How Energy Rating Numbers Work


A positive ER can be anywhere from 0 to 50. Any window with a positive ER saves more energy by maintaining heat. If a window has an energy rating of 0, that means it releases just as much heat as it keeps in over the course of a season. A window can also have a negative Energy Rating, meaning it loses more energy than it saves. This benchmark exists for you, the consumer, as it is an important factor in determining the value of new windows. The higher the ER, the more certain you can feel about your purchase.


How to Determine Energy Rating


Energy Rating is a part of the National Building Code of Canada. On the manufacturing side, ER is determined on a performance metric based on the size of the window, the category that window falls under (stationary windows, slider windows, casement windows, etc.) is important when considering the climate conditions under which the window must endure.

All windows emit solar heat, release air, and reach a capacity on how well they can insulate your home. All of these factors affect their ultimate Energy Rating.


Climate Zones

ENERGY STAR climate zones


We also mentioned climate conditions. There are 3 different ENERGY STAR climate zones in Canada, all with different rating levels. Windows with higher energy ratings qualify in more climate zones.

Because of the custom technology and materials we use in our windows, Polar Windows’ fixed window Energy Rating is +43. We focus on a long-term return with a lifetime warranty and our promise to bring you energy savings for decades. This promise extends to all of our products, doors included.


The Polar Promise


Polar Windows will help you reduce your home’s energy costs, increase your home’s comfort, improve your home’s appearance and ultimately increase your home’s value.

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5 Signs You Need to Replace Your Old Windows

Windows play a big part in the comfort of your home. They let in sunlight and refreshing outdoor air, and they enable the beautiful views of your neighbourhood. But eventually, your windows wear down. We know it can be difficult to tell just how much life your windows have left in them. Here’s a short list of telltale signs that you should move “new windows” to the top of your summer renovations list!


  1. Your Windows Won’t Function


Do you dread opening your windows? If they get stuck on their tracks, require a lot of jiggling, or don’t stay where you leave them, that’s not normal. Windows, especially wood ones, can warp over time as they take in moisture, causing them to function irregularly or not at all.

You can trust that if your windows don’t lock when they’re closed or require assistance to keep open, they are not properly sealed in the frame and require replacement.


  1. You Have High Energy Bills


If you had a hole in your house, you would patch it. When your windows aren’t properly sealed and insulated, the controlled air inside your home escapes through these unsealed spaces. Visible spaces in your windows are one thing, but you can detect any unseen drafts in your windows by slowly running your hand or a candle flame around the frames of your windows.

All that extra air your home requires to heat and cool adds up, the result of which is the number you’ll see on your energy bill. New windows seal these gaps properly and for the long term.


  1. There’s Noticeable Condensation, Leaking, and Decay


Windows are meant to keep the moisture out, not soak it in. You’ll need new windows if you’re noticing an excess of peeling paint, spots of wet wood, and mould. Condensation between the panes of glass in a window is a sign the seal has failed and needs replacing.

The other plus to replacing old looking windows is a significant bump in your home’s general curb appeal. People tend to notice the sharp look of new windows.


  1. You Can Hear Everything Outside


Your home is your temple. It should keep you comfortable and make you feel relaxed. If you can clearly hear traffic noise, lawn mowers, and noisy neighbours, your home may feel less private than it truly is. Your windows are to blame.

Windows transfer the vibrations of sound outside into your home, and when they’re not thick or properly sealed, they let in a lot of sound pollution. New windows with a professional seal virtually soundproof your home from outside noise. In addition to a visual improvement, you’ll be able to hear the difference too.


  1. They Look Awful


Because they’re constantly exposed to the elements, your windows require attention and maintenance year-round to ensure they’re performing correctly. However, those frames won’t last forever in the sun and rain. If you’re spending a lot of your time cleaning, scraping, and repainting your windows just to have them look only passable presentable, you may fair better with new windows. You’ll be able to save time, clear away any rusted and rotting materials, and they’ll present beautifully.


If your windows are looking a little worn, we can help. Book us for a hassle-free home estimate today.

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