My next Decoded column addresses the accessibility requirements for thresholds and changes in level at doorways. If there is anything I should add, let me know before it goes to print!
Thresholds and gasketing are simple in comparison to other types of hardware, but the code requirements can make them difficult to properly specify and supply.
I have never seen anything like these Wordless Wednesday videos that were sent to me by Mary Hinton of Mulhaupt's, Inc. This may be more than a rain drip can handle.
During the discussions about yesterday's post someone mentioned the "sill" of the fire door assembly, which reminded me of a clarification that has been made in NFPA 80 in the 2016 edition.
When inspecting a fire door assembly, how do you measure the clearance at the bottom of the door when the clearance varies between the push side and the pull side?
During a fire door assembly inspection, should a flashlight be used to verify whether the gasketing is continuous?
Ian Baren of Katonah Architectural Hardware sent me today's Fixed-it Friday photo. This mortise lock is on a very fancy clothing store, and apparently it was an aesthetic problem for someone that the gasketing did not continue down the lock face. So they drew it in with a Sharpie! You'd think that if they were going to go to the trouble, they would have used a straight-edge!
The rapidly-approaching deadline for fire door inspections in health care facilities is resulting in LOTS of questions about fire door assemblies. The most FAQ in the last few weeks has been...
Which door openings are required to have gasketing, according to NFPA 101 - The Life Safety Code?
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...
Questions on smoke gasketing continue to come up, so the Steel Door Institute asked me to write about it for their quarterly newsletter. You can subscribe to their newsletter here...
Looking forward to working with my friends at Zero! Here's the latest news from Tim Eckersley to Allegion customers...
If you read this paragraph in a vacuum, it seems like all fire doors have to limit the air infiltration to this level (in most cases this would require gasketing), but this paragraph falls under section 716.5.3 - Door assemblies in corridors and smoke barriers. There are two sections following 716.5.3 that apply to other types of fire doors...
Last week I read a blog post called, "Excuse me, but your slip is showing," from Constructive Thoughts, the blog of Sheldon Wolfe. I'm a sucker for a well-researched article on a code-related topic, so I sent Sheldon an email asking if I could reference his post here. Sheldon told me to have at it, but also said that it wasn't very satisfying for him to write this type of article - where you research every angle and end up without a useful conclusion.
It's time to clean out my inbox again! Here are some of the reader photos I've received. Thanks to all who sent them!
I need some help, and after giving the architect my suggestions I told him that I'd ask all of you for ideas.
I saw this church from the highway on our way into Roanoke, Virginia last week - it's St. Andrews Catholic Church, and I just knew it would have some nice doors. As soon as I approached the building from the parking lot, I spotted the meeting stile gasketing. Most people would probably see the building as a whole, or maybe the beautiful pulls, but I couldn't get past the gasketing.
"It's not what you know, it's who you know..."
According to the International Building Code (IBC), every required exit stairway that extends more than 75 feet ABOVE the lowest level of fire department vehicle access (high rise buildings), and every required exit stairway that serves floor levels more than 30 feet BELOW the level of exit discharge must comply with the referenced sections on smokeproof exit enclosures. (IBC 2009 - 403.5.4 & 405.7.2, IBC 2003 & 2006 - 403.13 & 405.8.2)
This is the 6th post in a series about fire doors and the results of a recent (unscientific) survey.
The 2009 edition of the International Building Code (IBC) contains an important change that's easy to miss if you're not looking for it. I stumbled across it a few months ago when someone asked me about the exception for cross-corridor doors without positive latching in I-2 occupancies.
One of our specwriters recently received a memo from an acoustical consultant regarding a school project that he was working on. The memo referenced a standard called ANSI-ASA S12.60 - Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools.
One of my (non-hardware industry) friends commented recently that she's been reading this blog and can't believe how complicated doors and hardware are. It's true! There are a thousand ways to screw up a door and I've made my share of mistakes over the years, but at this point I often spot problems from across the room while "regular" people continue to walk through the doors without noticing.
An astragal is a piece of molding used on a pair of doors or between the top and bottom leaves of a Dutch door, to provide security, protect against weather conditions, prevent light or sound transmission, or to retard the passage of smoke, flame, or gases during a fire. On a Dutch door the astragal is used to close the bottom leaf in conjunction with the top leaf. An astragal should not be confused with a mullion, which sits between (fixed) or behind (removable) the meeting stiles of a pair.
The 2007 edition of NFPA 80 contains an important change regarding the clearance at the bottom of a fire rated door. In previous editions of this standard, there was a somewhat confusing table (Table 1-11.4) listing different allowable clearance dimensions depending on the flooring material. The 2007 edition simplifies this requirement, allowing 3/4" clearance under the bottom of the door regardless of the flooring. The only exception is when the bottom of the door is more than 38" above the floor, ie. dutch doors and counter shutters.