Egress Window Size Ontario

Windows referred to above shall provide unobstructed openings with areas not less than 0 35 m2 3 8ft2 with no dimension less than 380 mm 15 in.

Egress window size ontario.

38 cm in dimension. Unobstructed opening of not less than 0 35 m2 3 77 sq ft in area with no dimension less than 380 mm 15 inches this window should maintain the required opening during an emergency without the need for additional support all dimensions should be over 380 mm 15 inches. The ontario building code sets out requirements for the size type and operation of an egress window. This height requirement takes it out of the running for most basement egress situations.

Size requirements of the egress window. The nbcc details specific size requirements as. Area for egress windows. Following are the requirements of egress window ontario set forth by the nbcc for ontario residents.

The egress window must have a glass area of not less than 8 of the total floor area of room s for which it is servicing to allow the minimum amount of sufficient natural light. Basement and bedroom egress windows must have an area that is not fewer than 3 8 ft. The minimum opening area of the egress window is 5 7 square feet. The window must have an unobstructed opening not less than 3 8 square feet approximately 30 x 30 brick opening.

No egress windows are required in those homes with existing installed sprinkler systems. No less than 3 8 ft 2 0 35 m 2 minimum dimension for egress windows. The minimum egress window opening is 20 wide. Window wells serving an egress window shall not be less than 9 square feet in area with a horizontal length width of no less than 36 inches.

6 where the sash of a window referred to in sentence 5 swings towards the window well the operation of the sash shall not reduce the clearance in a manner that would restrict escape in an emergency. No less than 15 inches 380 mm measure your windows between the sashes sills jambs as well as between the opening mechanisms. The window must be operable from the inside without the use of keys tools or special knowledge. It must be at least 5 7 square feet that is at least 20 inches wide by 24 inches high with an opening no higher than 44 inches from the floor.

Requirements of egress bedroom windows. Maximum 44 inches to window sill measured from finished floor. Window wells greater than 44 inches in depth requires a permanently fixed ladder or steps to provide access. The required window size for egress is the same between the national building code and the ontario building code.

5 where a window required in sentence 1 opens into a window well a clearance of not less than 550 mm shall be provided in front of the window. Window well requirements are the same as well. Bedroom or basement egress windows must be no less than 15 inches ca. Wide and 4 ft.

This means that to meet egress window height requirements a bedroom window must be nearly 4 ft.