Egress Window Size Ontario Building Code

The minimum egress window opening is 20 wide.

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. The minimum egress window opening height is 24 high. Size requirements of the egress window. Following are the requirements of egress window ontario set forth by the nbcc for ontario residents.

Windows can be of various total size but their free areas when open must be at least 5 7 square feet. Maximum 44 inches to window sill measured from finished floor. 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. Glass areas for rooms of residential occupancy.

And sentence 3 the minimum window glass area for rooms in buildings ofresidential occupancy or rooms that are used for sleeping shall conform to table 9 7 2 3. Minimum window areas 1 except as required in article 9 9 10 1. 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. Window wells greater than 44 inches in depth requires a permanently fixed ladder or steps to provide access.

The ontario building code egress windows or doors for bedrooms 9 9 10 1. The minimum opening area of the egress window is 5 7 square feet. Forming part of sentence 9 7 2 3 1. 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.

Area for egress windows. The ontario building code minimum window areas 9 7 2 3. 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. Requirements of egress bedroom windows.

To ensure the unobstructed opening meets these criteria you should measure between the sashes jambs sills and opening mechanisms. 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.