1 these rules specify requirements for means of egress for employee use required by the advent of hazardous conditions such as fire explosion and natural disaster.
Egress window size requirements michigan.
Egress opening requirements include.
2 these rules apply to workplaces in general industry except mobile workplaces such as vehicles or vessels.
The minimum egress window opening is 20 wide.
Basement egress windows have special requirements.
Section r311 2 states the width of the clear opening of the required egress door must be at least 32 inches from the face of the door to the door stop at the jamb or the opening and the height of the opening must be a minimum of 78 inches from the door stop at the head of the opening to the top of the threshold.
Casement windows with hinged sashes that swing free and clear of the opening can be relatively small and still meet egress requirements.
A window with a minimum width of opening of 20 inches a window with a minimum height of opening of 24 inches a window with a minimum net clear opening the actual opening through which a person must crawl of 5 7 square feet a sill height no higher than 44.
Minimum 24 inches of net clear height opening.
3 these rules cover the minimum requirements.
The minimum opening area of the egress window is 5 7 square feet.
Where the sill height is below grade it shall be provided with a window well in accordance with section r310 2 3.
5 0 square feet allowed if located at grade floor or below.
Where a window is provided as the emergency escape and rescue opening it shall have a sill height of not more than 44 inches 1118 mm above the floor.
Since you re below ground you have to make sure that the window can still fully open without obstruction.
Minimum 20 inches of net clear width.
The sill of an egress window must be within 44 inches of a finished floor a minimum of 20 inches in width providing a clear opening and 24 inches in height providing a clear opening.
Combined opening area must be a minimum of 5 7 square feet.
A 48 x 48 sliding egress window will add a lot of light and give the space a more non basement feel if the room allows this size window it s ideal.
The minimum egress window opening height is 24 high.
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.
