Have you ever wondered how your window and door installation company can say that their products are energy-efficient? They are able to make this claim by having products that possess several features that have been tested by various governing bodies throughout North America. This is how companies like ours are able to say that the products that we’re installing are indeed energy-efficient.
For windows and doors with glass panels, the U-factor is an important component that is tested by both the National Fenestration Rating Council (NFRC) and the U.S. Environmental Protection Agency (EPA). This feature is what measures the resistance of an object to heat conduction. The higher the U-factor is, the better an object is at resisting heat flow.
For example, windows with a U-factor of 0.27 to 0.30 are great for most northern states. This means that residents who live in the colder climates can expect less heat loss with a window and door that has a high U-factor value.
On the other hand, you also want to keep heat out, especially during the summer months. Glass windows and doors can achieve this with low-emissivity (Low-E) glass. These are glass panels that have been coated with a special film that is designed to reduce the transference of thermal radiation. This can be used in keeping heat from transferring through the glass by disrupting the flow of the radiation.
Low-E glass comes in two variants: glass with coatings that are pointed inwards and glass with coatings pointed outwards. For colder climates, the inward-pointing coatings are more desirable as they will again prevent heat from escaping out of the home through the glass panels. This is especially useful for living rooms with large picture windows or homes with a big glass entry door installation.
Want to learn more about energy-efficient windows and doors? Here at Stittsville Windows and Doors, we know exactly the kind of energy-efficient material you need and can help you find the exact product for your specific need. Give us a call at (613) 271-5434 to learn more about what we can do for you. You can also fill out our contact form. We serve residents of Stittsville and Kanata, ON.