Energy efficient windows are an important element of any new home and a critical consideration for older homes undergoing renovation or window replacement. The selection of proper windows will enhance your overall year round comfort levels while also saving you money by reducing energy and maintenance costs. Consider the following when choosing window and glass options:
Overall heat-transfer coefficient, describes how a product conducts heat. The lower the U-value the better the insulating value.
Solar Heat Gain Coefficient, measures the amount of solar heat gain through the glass on a scale of 0 – 1.0. The higher the number the higher the solar heat gain. Solar heat can provide free heat during winter but can lead to overheating in summer. Consideration should be given to factors such as regional climate, the direction that windows face, shading and other conditions when selecting glass type to balance solar heat gain for year round comfort and efficiency.
Energy Rating, calculated using a formula that considers a product’s U-value with potential solar gain and air tightness. The higher the ER the more energy efficient the product theoretically is.
Windows and patio doors are now included on the growing list of products that qualify for the Energy Star® international symbol for energy efficiency. All Energy Star qualified windows and sliding glass patio doors have been certified by an accredited independent agency for quality and performance. Dashwood is committed to providing windows that are certified to meet Energy Star standards and offers Low-E glass options to meet or exceed the required performance levels in all Canadian zones.
Gemini Energy Ratings
Trinity Energy Ratings
Heritage Energy Ratings
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