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Requirements for Size of Egress Windows in Basement for Canadian Homeowners

Requirements for Size of Egress Windows in Basement for Canadian Homeowners

If you are a homeowner in Canada, you are most certainly aware that there is a requirement to have egress windows in every bedroom of your home as well as your basement. There are, however, certain requirements one must meet in order for their windows to be certified as egress windows, including the required size of egress windows in basement.

Chances are your current windows, especially if they are casement windows, may already adhere to the guidelines for egress standard window sizes. But, if you have any doubts or concerns about whether your existing windows meet these standards, we shall provide you with detailed information on egress basement windows in the following article.

The Size of Egress Windows in Basement and Other Requirements

The National Building Code of Canada, or NBCC, requires that every bedroom in Canada be equipped with one egress window in the event of an emergency, such as a fire or flooding. In addition, at least one basement window in every home must meet NBCC standards. Most casement windows manufactured by Canadian window companies already meet the egress standard window sizes Canada, but if you are in doubt, please refer to the following NBCC guidelines.

Guidelines for Both Bedroom and Basement Egress Windows

  • Egress windows must be more than 1.5 feet (ca. 46 cm) above the bedroom or basement floor.
  • Installed security bars on basement or bedroom egress windows must be able to be easily removed from inside the home. You must be able to do so without the use of additional tools or complicated instructions.
  • Bedroom or basement egress windows must be no less than 15 inches (ca. 38 cm) in dimension.
  • Basement and bedroom egress windows must have an area that is not fewer than 3.8 ft. (1.16 m).
  • No egress windows are required in those homes with existing installed sprinkler systems.

Pro tip: If you need to measure your windows and doors to see if they are egress size windows, you must measure them between the window jambs, sills, and ashes as well as the opening components in order to get an accurate measurement.

Specific Requirements for Egress Basement Windows in Canada

  • The window well size of egress windows in basement must meet the above criteria and also must have an opening with a depth of 30 inches (0.76 m) and must be 76 cm from the wall.
  • The NBCC dictates that there must be a permanent ladder or step affixed to the basement egress window in order to provide a quick and easy escape in the event of an emergency.

More Facts about Egress Windows

  • Recently installed crank windows (casement) or slider windows might already meet the criteria we have provided above.
  • Cutting into your existing concrete basement wall might be needed in order to convert your current basement windows to egress windows.
  • If the above is needed, this work must meet the building codes of the area in which you reside and, therefore, should be done by a professional contractor. Moreover, they must be properly installed in order to protect the structure of your home.
  • A permit may be needed in order to convert your windows to the correct size of egress windows in basement. Inquire at your local municipal building to see if a permit is indeed needed in order to avoid a costly fine or added costs.

Should you have further questions in reference to the size of egress windows in basement or bedroom of your home, contact the staff at WindowTech Windows and Doors. Our employees are up to date with the latest NBCC guidance and can offer you assistance. Call us for a no cost estimate for windows and doors for your home.

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