According to the 2018 irc all windows that are more than 6 feet above the grade outside the window must have a bottom opening a minimum of 24 inches above the room s interior floor.
Minimum window height from floor ontario building code.
The minimum opening area has to be 5 7 square feet 820 8 square inches with a minimum height of 24 inches and a minimum width of 20 inches.
The code regulates this minimum sill height only when the window opening is more than 72 inches above the grade below.
Where to install windows with tempered glass is not just dictated by the height of the window.
In cases where the sill height is less than 24 the window shall not have an opening greater.
The ontario building code minimum window areas 9 7 2 3.
The majority of amendments come into effect january 1 2020.
The ontario building code egress windows or doors for bedrooms 9 9 10 1.
The ohba has created these top 5 lists for both part 9 and part 3 changes to the ontario building code.
Maximum 44 inches to window sill measured from finished floor.
According to code check complete.
Forming part of sentence 9 7 2 3 1.
Exceptions can be made for windows that do not open more than 4 inches or that have window guards or opening control devices in compliance with astm f2090 17.
Minimum window sill heights.
The mean height of the building and its exposure to wind.
Minimum window areas 1 except as required in article 9 9 10 1.
An illustrated guide to the building mechanical and electrical codes by redwood kardon et al conditions requiring a window to have tempered glass include a window lower than 18 inches from the ground larger than 9 square feet in area with a top higher than 3.
There are over 140 obc changes to the 2012 building code released in 2019.
The well outside the window has to be at least 36 inches wide and 9 square feet in area.
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.
The sill height of such window cannot be more than 44 inches from the 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 a is openable from the inside without the use of tools.
One such alternative is a window fall protection.
Ground floor windows and 5 7 ft for upper levels.
In such locations where the sill height is lower than 24 inches protection can be achieved by installing a barrier or limiting the dimensions of the window opening.
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.
Glass areas for rooms of residential occupancy.
Major requirements were set forth in the published 2018 i codes for windows doors.
Fall protection requirements state that windows with openings more than 72 above the finished grade or surface below are to have a minimum sill height of 24 above the interior finished floor.
