What Size Must An Egress Window Be

The minimum egress window opening is 20 wide.

What size must an egress window be.

Egress window well code requirements. The overall size of this smallest double hung egress window is 14 85 sq. 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. Minimum size gliding egress window gliding windows with horizontally sliding sashes that always fill half the possible window opening area also have to be big to meet egress requirements.

The area of a window well shall not be less than 9 square feet with a horizontal length width of no less than 36 inches. Ft almost twice the area of the egress casement window shown. The minimum opening area of the egress window is 5 7 square feet. To ensure you install the right egress for your basement we ll break down the residential window well code requirements you ll need to abide by.

These laws are very specific about what each room can and must have in terms of escape methods should an emergency situation occur. For determining egress window sizes and placement the international building code holds that every bedroom must contain at least one 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. And every basement bedroom whether existing or added is required by code to have an egress window.

Egress is literally defined as a path out or to emerge and these terms directly apply to the design principles behind egress windows. An egress window is a window that is required in specific locations in a dwelling and must meet specific size requirements to qualify as an egress window. 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. When the sill height of an egress window is located below grade common for egress windows provided for a basement a window well must be provided.

The minimum egress window opening height is 24 high. However if your basement has habitable finished rooms building codes require it to have egress windows or other means of egress patio door etc. In the window business egress codes are laws about the size of operable windows for the purpose of allowing people to escape if there s a fire in the home. Let s have a look at the alberta building code abc 2014 criteria that all egress windows must satisfy.