Window Energy Ratings Canada

The lower the u value the greater a window s resistance to heat flow and the better its insulating value.

Window energy ratings canada.

In canada the energy performance of windows doors and skylights is tested using the canadian standards association csa a440 2 standard. Choosing high performance windows doors and skylights can save you money and keep your home comfortable. Different climate zones have different energy ratings. The standards for energy ratings vary according to climate zone.

Each year the average american household spends 1 500 2 500 on energy bills. Energy star most efficient 2020 fixed or picture windows. The other three are somewhat less important to energy performance according to energy star but can help you judge how well a window or door will perform in a particular application for example whether it ll let in enough light. The energy star most efficient 2020 designation recognizes the most efficient products among those that qualify for the energy star program.

In canada s climate this means higher energy bills for you. The lower the number the better an insulator the window or door is. It encompasses u factor air leakage and shgc giving consumers a more convenient way to compare products. 45 of that cost is for heating and cooling.

U factor ratings for windows generally fall between 0 20 and 1 20. The national fenestration rating council nfrc operates a voluntary program that tests certifies and labels windows doors and skylights based on their energy performance ratings. Some products sold in canada may also be tested using the standards of the national fenestration rating council in the united states. To earn the energy star label in canada a window must have a minimum energy rating of 25 in zone 1 29 in zone 2 and 34 in zone 3.

But choosing highly efficient models can help. Rating for energy performance. These vertical slider windows represent the leading edge in energy efficient products this year. Replacing windows or buying those that are energy efficient can be quite frustrating.

In canada for a window to earn an energy start label its minimum energy rating in zone 1 should be 25 29 in zone and 34 in zone 3. To learn more about energy star criteria for windows doors and skylights in canada visit energy star canada nrcan administers and promotes energy star in canada.