In August, we reviewed the “Bolt Locks” section of the International Building Code (IBC), which details the flush and surface bolts requirements. While the stipulations for when this type of hardware is code-compliant differs from other types of locks, the intent is the same—to maintain free and easy egress.

Safeguarding access and egress routes is an important building consideration regarding accessibility and protecting occupants during emergencies that require evacuation. This necessary part of model building codes may sometimes be overlooked in some situations, such as those involving school safety and security. Proper planning makes it possible to design an entry vestibule that protects occupants from intruders and allows safe exit.

Question: What should be avoided when designing, specifying hardware or updating features in secured entry vestibules?

Model codes delineate what latching and locking hardware is allowed on doors along egress paths and the applicable exceptions. Additionally, best-practice recommendations from the Partner Alliance for Safer Schools (PASS) and an International Code Council (ICC) Ad Hoc Committee on Building Safety and Security include locking hardware allowed by local code requirements.

Code-compliant locking hardware, when paired with security-rated doors, windows, and access control protocols, provides an adequate means for delaying and deterring violent intruders. Further, locking hardware is an integral and effective part of a multilayered approach to building safety and security.

However, some designs and aftermarket products may be perceived as adding security but do not meet code requirements for egress or accessibility. Two common examples are barricade devices and man-traps. Barricade devices are marketed as products that enhance a door’s ability to resist forced-entry attacks. Many of these devices do not meet Americans with Disabilities Act (ADA) standards and may prove difficult or impossible for building occupants with accessibility needs. Further, many designs do not meet the egress requirements outlined in model codes.

Many school entrances now include a security vestibule, but these vestibules should not be confused with man-traps. A man-trap is another term for an interlock, which is a group of two or more doors that are part of a vestibule. When one door is open, the other doors cannot be opened. Though there are similarities between interlocks and security vestibules, the terms are not interchangeable—doing so creates confusion and could lead to a design that inhibits free egress. This is especially true in areas that need to accommodate the egress of many people, like entry vestibules.

When designing, specifying hardware or updating secured entry vestibules, it is important to maintain accessible and quick egress. Code-compliant locking hardware can support both egress requirements and security goals. The hardware installed on these doors will typically prevent unauthorized access to the building and will often guide visitors to the main office. Free egress is facilitated by panic hardware, as required by the IBC for doors serving educational facilities with a calculated occupant load of 50 people or more.

If you have a code-related question you would like answered, please send it to jhuff@glass.com.