FF: Why ask why?
This is the door hardware equivalent of whodunnit...maybe I should start calling these "whydunnit."
QQ: Coordinators on Fire Doors
When a pair of fire doors has manual flush bolts and no closer on the inactive leaf, is a coordinator required?
Spam and a UHP
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.
WWYD? Key-Operated Surface Bolt
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.
FF: Double Bolts
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).
FF: Zip It
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.
Fire Door Latching
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...
FF: Storage Room Pair
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...
Decoded: Flush Bolts and Coordinators (January 2017)
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...
QQ: Are deadbolts prohibited in a means of egress?
I've had several situations where an AHJ interpreted the term "bolt lock," used in the International Building Code (IBC), to mean a deadbolt...
WWYD? Manual Flush Bolts on Fire-Rated Pairs
Manual flush bolts on pairs of fire doors leading to rooms not normally occupied by humans? WWYD?
Flush Bolts and Coordinators (video)
I hope this whiteboard animation video helps to explain one of hardware's most confusing topics - flush bolts and coordinators!
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...
WW: “Leave them LOCKED!”
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!" :(
WW: Down at the DMV
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.
Decoded: Manual Flush Bolts (March 2011)
This post was printed in the March 2011 issue of Doors & Hardware