WWYD? Dutch Door Coordination
This is another one for my code development wish list. The typical height for a dutch door shelf is usually 39-42 inches above the floor. It can be tricky to coordinate the latching hardware in the bottom leaf...
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This is another one for my code development wish list. The typical height for a dutch door shelf is usually 39-42 inches above the floor. It can be tricky to coordinate the latching hardware in the bottom leaf...
I know I'm supposed to be talking about smoke doors but each of those posts takes quite a bit of research time. I'm headed out of town tomorrow for a meeting about fire door inspection, so I'll get back to the smoke doors later in the week.
Mark Lineberger of Valley Doors and Hardware sent me today's Fixed-it Friday photo. This dutch door (I use the term loosely) was seen at the NYC Port Authority Bus Terminal. I know it's Friday but I'm Wordless.
This Wordless Wednesday photo from Paul Shaaf and Kevin Lach of Twin City Hardware is a first for me. And after 7+ years of writing this blog, I don't say that very often. Enjoy.
From Stephen Richardson and Joe Beeman of Allegion, here's a hinge modification they saw recently. Would you consider this acceptable? Why / why not?
This is the first time I've ever received a Fixed-it Friday STORY...not just one FF photo, but 13 photos and Logan Piburn's narration of the whole situation. Thanks Logan!
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.
Today's Quick Question: In our facility there is a mechanical room where we need a removable transom panel in a fire door assembly, to allow for the occasional replacement of equipment that won't fit through a 7-foot door. Is this possible?
Here's a big group of reader photos from the emailbox!
The first time I ever saw a wicket door, it was for a post office project and I was working on the shop drawings. I haven't run into a whole lot of them since, but I saw a pair last weekend and risked the embarrassment of my friends to take some photos. The employee at the door said that I wasn't the first. :-)
Most egress doors are required to be readily openable with no special knowledge or effort. The door must unlatch with one operation, and the operable hardware must be mounted between 34 inches and 48 inches above the floor. There are several problems with this Wordless Wednesday dutch door found at a cell phone store...
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.
Today's winner of the 5th-birthday gift card is Dan Droker of CCI Automated Technologies, who sent me some great photos from the Woodland Park Zoo in Seattle. It makes me happy to imagine some of you embarrassing your spouses and kids by taking door photos during family outings. My family has begun to automatically sense when a door piques my interest, and they make themselves scarce. Except the little one who wants to be in every picture...
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?
For the second time in two months, a news story came across my desk that involved the impact of mag-locks on security. For some involved in the security industry, mag-locks are perceived to be an easy way to retrofit a high level of protection, because the field preparation is limited and the manufacturers' literature shows holding force specifications which seem like more than enough to keep out the average burglar.
Dave Carter of Allegion sent me today's Wordless Wednesday photo - taken in a restaurant. You might be thinking, "Maybe this isn't a required exit..."
By request, I have updated this article on smoke doors to include the requirements of the 2021 IBC. When you have a question about a smoke door, just decide which of the 5 types it is and refer to the section for that type.