Egress Window Size Ontario Building Code

No less than 15 inches 380 mm measure your windows between the sashes sills jambs as well as between the opening mechanisms.

Egress window size ontario building code.

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. The minimum egress window opening is 20 wide. 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 sill must be no higher than 44 inches from the ground.

Minimum window areas 1 except as required in article 9 9 10 1. Size requirements of the egress window. 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. No less than 3 8 ft 2 0 35 m 2 minimum dimension for egress windows.

The minimum opening area of the egress window is 5 7 square feet. Area for egress windows. To ensure the unobstructed opening meets these criteria you should measure between the sashes jambs sills and opening mechanisms. Following are the requirements of egress window ontario set forth by the nbcc for ontario residents.

Window wells greater than 44 inches in depth requires a permanently fixed ladder or steps to provide access. Glass areas for rooms of residential occupancy. The minimum egress window opening height is 24 high. An egress window must open at least 20 inches wide and 24 inches high with a net clear open area of 5 7 feet square.

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. Maximum 44 inches to window sill measured from finished floor. The ontario building code egress windows or doors for bedrooms 9 9 10 1. Windows can be of various total size but their free areas when open must be at least 5 7 square feet.

Requirements of egress bedroom windows. Egress windows or doors for bedrooms 1 except where a door on the same floor level as the bedroom provides direct access to the exterior every floor level containing a bedroom in a suiteshall be provided with at least one outside window that.