Practical Advice Regarding Glass Exit Doors and Thumbturns

Sometimes, I receive a call from a customer who wants to have an additional swing-bolt lock installed on the front door of their business.  Of course, there is always a lighted exit sign above the door which identifies this door as an emergency exit.

You cannot put two locks on a door that is designated as an emergency exit.  Why?  Because, in the event of an emergency, the emergency exit door must be able to be opened with one motion.  If there are two locks on the door, an person leaving the building will have to use two motions to leave the building.  This, as you can see, could be problematic.  Imagine, for example, that a disgruntled employee starts shooting after closing time.  Having to unlock two locks could mean the difference between life or death for a person trying to escape such a situation.  Imagine that a door does have two locks and that one is unlocked and the other locked.  In an emergency situation, a person trying to leave the building will unlock the locked lock and lock the other.

You must have thumb turn on the inside of your door if the door is a glass door using the Adams-Rite deadbolt.  In the event of an emergency, the person leaving the building can unlock the door in one motion.  However, the thumb turn is not intended to be used in banks, for the reason that bank robbers can conveniently lock the doors behind them.  Also, it seems to me, a person who runs a business alone should be exempt from the thumb turn requirement.  It could happen that a person wanting to commit a crime could easily enter, lock the door behind him, and proceed with his crime.

Although codes exist for good reasons, it is simply absurd for the local governing authorities to uphold codes if there are valid reasons why a code should, and must be, ignored.  In the event you have question on one of these issues, call your governing authority (perhaps your local fire marshal), tell him about your concerns, and ask him or her to waive the rule.  But, if he or she rules in your favor, be sure to get it in writing.