Homeowners have a number of concerns and saving energy is usually at the top of the list. It is important to save on energy to reduce your costs. There are a number of ways of doing this including buying the right windows that are energy-efficient.

When making your purchase, you need to look at the energy efficiency ratings. This information can be overwhelming, especially when you do not understand the rating system and the way it is presented. If you are shopping for new windows, the following information will help you better understand the energy performance ratings:


Energy Star

This is a rating used in Canada and the United States and is the certification system used to identify energy-efficient products. This system is used for windows and doors and the Energy Star symbol indicates that the product is energy efficient. The symbol confirms that the product meets or exceeds certain standards and is only placed on a product. After it is tested by a credible laboratory.



This is the measurement of the resistance of any given product to heat loss. A higher U-Factor means increased heat loss, so look for windows that have a lower U-Factor. This is to provide better insulation and do not let heat escape. This measurement is especially important for those who live in a colder climate window with a low. U-Factor will help you save on your heating bills.


Visible Transmittance

This is an important measurement that is shown as a percentage. Refers to the amount of visible light that can pass through a given window material. A lower number is an indication that less light will enter the building.


Air Leakage

This is another important window energy efficiency factor that you must consider because it refers to the amount of air passing through cracks in a window. A high air leakage rate is problematic. That means it is more prone to heat gain and loss, which will reduce interior comfort. One of the main causes of this problem is the poor installation of windows. We make sure you work with a professional company. Otherwise, your windows will not be energy efficient.


Energy Rating

This figure will help you figure out whether the material used is suitable for your house. This measurement provides an energy efficiency score. The figure takes air leakage, U-factor, and solar heat gain coefficient into consideration.

This information should help you make an informed decision when it comes to purchasing the right windows. If you feel overwhelmed or require more information, the experts at Concord Window and Doors can help! Our windows and doors shop specializes in replacement windows and doors. Our door store will provide you with quality products that are suitable for your home, so if you are in Vaughan, contact us today!