IRC R310 Explained: Basement Egress Window Sill Height in Maryland
The Core Of Basement Egress Window Compliance IRC R310 is the part of the residential code that governs emergency escape and rescue openings, which is the technical phrase behind basement egress windows. For most homeowners, the problem is not the frame or the glass, it is whether the opening is low enough, wide enough, and easy enough to reach in an emergency. The sill height is the horizontal distance from the finished floor to the bottom of the clear opening.