How much air do your windows let in?
You may not have given it much thought before. Your windows are closed, after all, and the seal seems to be working. But how much air is leaking through the glass, either into your home or out? Every window has some amount of Air Leakage, or the rate at which air leaks through the glass. The scale for functional windows runs from .1 to .3. The lower the number, the less air leaks through your windows. If your AL number is too high, this could lead to higher energy bills and even damage to your walls or home.
Here’s why it’s so important to have airtight windows that let in the least amount of air.
Home Comfort
If your windows let too much air leak in or out of your home, your insulation will be poor, and you’ll be able to feel that inside. You may notice a draft in a particular room in the winter. Since air can leak outside the home as well, it may be that you have to turn the heating units up higher in order to feel the desired amount of home heating because the hot air keeps escaping outside. In the summer, your home may become stuffy and uncomfortable. Neither of these conditions are acceptable for your home. You should feel more comfortable at home than anywhere else. When you don’t, it may lead you to using more energy to make up the difference.
Energy Efficiency
If your windows leak too much air, you may find yourself cranking the heating or air systems in order to feel more comfortable at home. If you feel more comfortable in the moment, you can rest assured that you won’t feel comfortable when the energy bills start to come in. While some homeowners may be inclined to wait until the window is obviously broken to replace it, this could cost them more in the end because of high HVAC and energy bills. An airtight window, on the other hand, can save you hundreds each year.
Unwanted Guests
One of the first hints of windows with a high AL rate is window condensation. Moisture may start to form on the glass, the window frame, and the nearby walls where the cold air meets the warm air inside your home. Not only is window condensation unsightly but it can lead to problems like mold and mildew if it’s not nipped in the bud. But window condensation isn’t the only unwanted guest you might have to contend with. If the seal on your window isn’t secure, your window may be letting in bugs and pests which can quickly become comfortable in your home. With a good seal and window glass that has a low AL rate, you can keep all of these issues out of your home and your peace of mind.
At Windham Construction, we understand the importance of airtight windows. That’s why we offer efficient windows that help you retain the air inside your home while keeping drafts out. If you feel air passing through your window, contact us today about a repair or a replacement.
