Ontario Building Code Practice Exam

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What is the minimum size required for an egress window in a basement bedroom?

0.35 square meters
0.50 square meters
0.75 square meters
1.00 square meters

The correct answer is: 0.35 square meters

The minimum size required for an egress window in a basement bedroom is set to ensure that occupants can safely exit in case of an emergency. Specifically, the Ontario Building Code specifies that the egress window must have a minimum area of 0.35 square meters. This standard is in place to provide a sufficient escape route for individuals in the event of a fire or other emergency situations. It’s crucial that the window dimensions also meet specific height and width requirements to allow a person to exit easily. While larger windows may provide additional safety or light, the minimum requirement is established to balance safety, practicality, and buildability. Thus, 0.35 square meters is recognized as the adequate minimum area that supports both safety and regulatory compliance for egress in a basement bedroom scenario.