In my current column in USGlass Magazine, I addressed the topic of security vestibules in schools. Consider this question: What should be avoided when designing, specifying hardware or updating features in secured entry vestibules?
My current monthly column in USGlass Magazine answers this question: On pairs of doors, are inactive leaves that are not required for egress allowed to have manual flush bolts? Do you know the answer?
On Tuesday I answered a Quick Question about panic hardware on an unequal leaf pair, which led to another question from several readers: Can the smaller leaf of an unequal leaf pair be equipped with flush bolts instead of panic hardware?
Today's Quick Question: On a pair of non-fire-rated corridor doors in a health care facility, is one automatic flush bolt required for the inactive leaf, or are two bolts required (top and bottom)?
Would a pair of doors with a hollow metal removable mullion and locksets on both door leaves be more reliable and require less maintenance than a pair with flush bolts and a lockset? What are the challenges with this application? WWYD?
I've been on the lookout for a pair of doors with automatic flush bolts and a coordinator that was installed, adjusted, and functioning properly, and I finally found one last week at UTK. Here's a quick video showing how a coordinator works.
Today's Quick Question: When does a door opening need a coordinator - and what IS a coordinator, anyway?? Can you help with some images or video to help illustrate this tough-to-explain concept?
Today's Quick Question: Are door bolts - like the surface bolts made by commercial hardware manufacturers - allowed to secure classroom doors during a lockdown?
This is the door hardware equivalent of whodunnit...maybe I should start calling these "whydunnit."
When a pair of fire doors has manual flush bolts and no closer on the inactive leaf, is a coordinator required?
What's a UHP? An Unidentified Hardware Product that I need your help to identify. But first, a note about spam - and not the canned ham-like version.
These doors are serving a church, and currently have key-operated deadbolts at the bottom of each leaf. The deadbolts are too low for the reverends to reach comfortably.
I recently ran across a Facebook page that could supply us with Fixed-it Friday photos until the end of time (or until I retire).
Colin Watson of Allegion sent me this Fixed-it Friday photo of a surface bolt. Zip-tied for extra security. In a school. I guess they don't want anyone using that leaf.
In order for a fire door assembly to perform as designed and tested, it's critical for the door to be closed and latched if/when a fire occurs...
I wish I had a nickel for every storage room door like this one I've seen. The flush bolts end up breaking through (as evidenced by the lovely repair to the bottom bolt area), and in this case the strike is gone too...
A common question is whether an inactive leaf that is provided for convenience, aesthetics, or movement of equipment, and not required for egress is allowed to have manually-operated flush bolts...
I've had several situations where an AHJ interpreted the term "bolt lock," used in the International Building Code (IBC), to mean a deadbolt...
Manual flush bolts on pairs of fire doors leading to rooms not normally occupied by humans? WWYD?
I hope this whiteboard animation video helps to explain one of hardware's most confusing topics - flush bolts and coordinators!
Flush bolts are used on pairs of doors to secure the inactive leaf, projecting into the frame head and into a floor strike. In this application, the active leaf would typically have a lockset which latches into a strike mounted on the edge of the inactive leaf...
In case you have a hard time reading the sign on the LHR leaf, it says "Please do not use these doors. Leave them LOCKED!" :(
I find the Department of Motor Vehicles so frustrating that one year I actually cried because after waiting over an hour they said I didn't bring the right utility bill. AND...my car got hit by someone taking his driving test in the parking lot (he failed). It might have all been worthwhile if I could have spotted an exit at the DMV like this one, sent in by Lisa Augerson of Ingersoll Rand Security Technologies. According to Lisa, the DMV person said they keep it unlocked during business hours.
This post was printed in the March 2011 issue of Doors & Hardware
