CHANGE TYPE: Clarification
CHANGE SUMMARY: The emergency escape and rescue openings provisions have been reorganized. Separate provisions spell out the requirements for windows and doors used for emergency escape and rescue.
EMERGENCY ESCAPE AND RESCUE OPENINGS
(Deleted text is not shown for brevity and clarity.)
CHANGE SIGNIFICANCE: There are no intended technical changes in the reorganization of the emergency escape and rescue provisions in Sections R310.1 through R310.4. (New provisions for existing buildings are addressed in the next change in this publication.) Specific language related to doors used for emergency escape and rescue openings has been added, but there are no changes to the opening dimension requirements. Because exterior doors are typically much larger than the required dimensions for the net opening, they have always been acceptable for satisfying the emergency escape and rescue opening requirements. The reorganization addresses windows and doors separately to avoid any confusion.
Section R310.1.1 clarifies that window opening control devices complying with ASTM F 2090 are approved for use on windows serving as a required emergency escape and rescue opening. Window opening control devices are one option for satisfying the window fall protection requirements of Section R312.2. The device limits the operation of the window such that the net opening does not permit a 4-inch sphere to pass through but has a quick-release mechanism that is approved for emergency escape and rescue. Window opening control devices must comply with ASTM F 2090, Specification for Window Fall Prevention Devices—with Emergency Escape (Egress) Release Mechanisms.
2015 Significant Changes to the International Residential Code