Printed from the blog of Lori Greene, AHC/CDC, CCPR, FDAI
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Q&A: Silencer Holes

Question:  When adhesive smokeseal is installed on a fire-rated frame, the silencers are not installed and the silencer holes are left open beneath the gasketing.  NFPA 80 says that rated doors and frames are not allowed to have any open holes.  Are the open silencer holes a problem? Answer:  The open silencer holes will be […]

Q&A: Panic Hardware vs. Fire Exit Hardware

Question: What’s the difference between panic hardware and fire exit hardware?  And what’s an exit device? Answer: An exit device is the general term for panic hardware, a panic device, or fire exit hardware.  An exit device may be of the touchpad, crossbar, or recessed style, and it’s characterized by an actuating mechanism that spans […]

Q&A: Testing Delayed Egress Locks

Question:  Is there a code requirement for how often the delayed egress hardware in my facility must be tested? Answer:  The 2009 International Building Code (IBC) doesn’t include testing guidelines in section 1008.1.9.7 Delayed Egress Locks, but that makes sense because the IBC is used during construction and not for ongoing maintenance.  I checked the […]

Q&A: Mounting Height for Glass Lites

Question:  Is there a requirement for the location of a glass lite in a door or sidelite? Answer:  Yes!  For many years there has been a requirement in ICC A117.1 – Accessible and Usable Buildings and Facilities, which is referenced by the International Building Code and other publications.  If a door has a vision lite […]

Q&A: Permits for Access Control (March 2013)

This post was printed in the March 2013 issue of Doors & Hardware Question:  I need to install 2 card readers and the associated electrified hardware on existing doors.  There is no other construction or wiring being done.  Am I required to apply for a permit in order to perform this work? Answer:  My guess […]

Q&A: Continuous Hinge Retrofit

Question:  I have a hollow metal fire door that is sagging due to failure of the top hinge reinforcement.  Is it acceptable to remove the butt hinges and install a continuous hinge on the existing door and frame? Answer:  NFPA 80 does not specifically address this application, so it would be dependent on what is […]

Q&A – Do pairs of fire doors require astragals?

NFPA 80 – Standard for Fire Doors & Other Opening Protectives no longer includes a prescriptive requirement for certain pairs of fire doors to have astragals. In the 1999 edition of this standard (and prior editions), an overlapping astragal was required for pairs of doors rated for more than 1 1/2 hours. In the 2007 edition, the requirement for an overlapping astragal was removed, and the use of the astragal is dependent on the manufacturer’s listing procedures…

Q&A: Solid Bar Gasketing

After 7 years of posting a new piece of door & hardware information on this blog every day, it makes me very happy to receive a new question that I haven’t thought about before. Last week’s question was related to the solid bar gasketing designed to allow closer shoes (and other hardware) to be attached directly to the gasketing…

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