Life Safety Drawings are the unappreciated hero
by Bob Armbrister, on Feb 20, 2020 12:00:00 AM
Life Safety Drawings (LSDs) are often an unappreciated hero of an accurate door inspection. Not having accurate LSDs cause the inspection of extra doors and their consequential costly repairs.
Let me explain.
Notice the blue barrier called out on the LSD as 1FSB. The legend defines this wall type as a 1-hour fire smoke barrier but look closely at how it’s used as it moves from the top of the example to the bottom.
The 1FSB begins as it crosses the yellow corridor. During this portion of the barrier, it is being used to separate smoke compartment and is referred to in NFPA 101 as a “smoke barrier”. Doors in a smoke barrier are not required to be fire-rated, are not required to have fire-rated hardware, and in occurrences when it crosses a corridor, do not require latching.
Now follow the barrier as is defines the left side of the EQUIP/STORAGE room. The room is a designated hazardous storage room and is surrounded on three sides by the orange “1FB” defined in the legend as a 1-hour fire barrier. For this segment of the 1 FSB, the barrier is both a 1-hour fire barrier and is part of the smoke barrier (separating smoke compartments). Doors in this room need to be at least 45-minute rated fire doors with appropriate hardware.
Further down the 1FSB crosses in front of a non-hazardous room where the doors are again not required to be fire rated.
Including doors that are not required to be fire doors in your fire door inspection is a costly mistake. Along with the extra inspection costs, you will also:
- Maintain or add expensive latching hardware in cross corridor doors.
- Add and maintain fire-rated hardware.
- Maintain doors to strict edge gap standards.
- Use expensive fire-rated gap repair products when doors cannot be shimmed into the standard.
- Risk your fire marshal or accrediting organization forcing you to repair wrongly identified fire doors at an accelerated and inflated rate.
We have many customers who we have created Life Safety Drawings for. On almost every occasion, the customer had reduced their previous required fire door inventory. The following inspection and repair cost avoided with the new LSDs have more cover the cost of the new drawings.