What is the minimum square footage of net clear opening area for an egress window in a second floor sleeping area?

The minimum square footage of net clear opening area for an egress window in a second-floor sleeping area is established by safety codes to ensure adequate escape routes in the event of an emergency. The requirement of 5.7 square feet is designed to allow for a clear opening that is sufficient for a person to exit and for rescue personnel to enter if necessary.

This minimum size is specifically dictated in building codes to protect occupants by facilitating a safe escape during fire or other emergencies. The size requirement reflects safety considerations based on average body dimensions, lifestyle habits, and the accessibility of the escape route.

While the other options represent dimensions that do not meet this specific safety standard, such as not providing enough net clear opening area for effective egress, only the 5.7 square feet minimum satisfies the criteria necessary for safety compliance.