Delayed Egress Examined

Author: Brian Rhodes, Published on Jan 27, 2013

Is it ever legal to lock people into a building? With so much of access control driven by life safety codes, and a predominant focus of 'free egress' during an emergency, this code provision - delayed egress- seems to run counter to common sense. In this note, we explain the code, share real world applications and installation issues.

Codes Explained

*** *** **** *** (******* *.*.*.*.*) ***** **** ****** ******* egrees ************. ***** *** ******** *********** ****** ******* *** *****, both ***** *** **** **** * ******** ** ** ******* up ** ** ******* (********* **). **** *** ********** * delayed ****** ******* *** ****** ** *** **** ***, ** alarm ****** *** *** **** ******* ****** *** * ***** period ****** ********** *** ********** ******.

**************, *** *** **** *** ********* ** **** ****** **** when ** ** **** *********. ******* ************* ******** ** ******* restrict *** ** ******* ****** *** ******** **********. *** *******,******** ****** / *******, ******* ****** *** ** ***** ***** ** **** ***********, contrary ** **** *** **********.

************ ******* ****, *** ***** *** ******* ** ***** ************** by *** ****. *******, *** * ****** **** ** *** codified ***********, ******* ************ *******.

Fire ***** ********

**** ** ******* ****** ** ****, *** ***** **** ** made ** ****** *********** **** *** **** ***** ** ******. This ***** ******* ****** **** ******* * **** *** *********** trampling ** ******** ****** ******* * ****** **** ****** ** emergency.

*******, **** *********** ********* **** **** ******** ****** ********** ****** without ********* **** ******. ****** ********, ****** *******, *** **** threat *********** *** ** ******** ** ******* ****** *****. **** often ****** ** *** ******* ****** ******* ** ***** ********.

Real-World ******* ****** ************

******* ****** ** ********** ** ******* ***** **********. **** *** following ********:

****** ******:****** '*** ***' ****** ****** *** ********* ********** **** ******* multiple ********* **** ***** ********** *** ********. ** *** ****, shoplifters **** ***** ********* ** ***** ********, ****** ******* ** with ********* *********** *** ******** ******* ***** ***** ** ******* vehicles *** * ***** *******.

******* ****** ***** ******* **** *******. ** ******* ******** ** crash ******* ** *******, ** ***** ****** *** ** - 30 ******* ****** **********, ******** *** ***** ********** ** ********* the **** ****** ****** ****** ** ********.

*******/*******/************ *****:******* ********** ***** ** *** ******* ****** ** ***** *** risk ** ******** ****** ** ****. *** ******* *** ******* care **********, ******** **** ******* *** ******* ******* ** * high ********, *** *** ** ******* ****** ** ************ ******** is ** ********** ****.

Nuisance *****

********* ** ***** **** ********* ** ********, *** ****** ***** to ***** ** *** **** *** *** ***** ********** *******. This **** ******, ****** *** '******** *****' ***** ******** ************ triggering * ******* ****** **** ** ****** ******* *** **** bar. ** ** ***** ** ******* ** ****, **** '********' the **** ** ******* *** *** *** ******* ** * potential ******** *** ******* *** ************* ** *** ************ ** supervising *****.

How ** ** *********

*** **** ** ********** ****** *** ********* ******* ****** ****** according ** *** ** ** *********** - *** ****************** ******* ** ******** ** ** ****** *** **** ********** ** *** ******.

***** ***:******* ****** *** ** ********* ** *** *******, **** ** it ** *** *** ****** **** *** ******* **. *******, in **** *****, *********** *********** ******** ** ********. **** **** device ************* ***** ******** ****** ********* *********** *** ** *********** ** ** ******** ******* *** *** installed **** ** ***** ******** ***** ******* $**** - $**** each *******.

****** ******* *******:**** ****** ******* ******* *** ** ********** ** ******* ******* hardware ***** * ***** *****. *******, **** ***** ** *********** hardware *** **** ** ** ********* ** ********** ******** (**: electric *******), ** ********** **** ******* *******, **** ** '**** check' *** ** ********. *** ********* **** ** ******* ****** on ** ****** ********** **** *** ***** ******* * *** dollars *** * **** ($*) ** $**** ** ********* ** delayed ****** **** *** ************ ******.

'**** *****' ******:***** ********* **** ** *******, **** ****** ** **** **** ** **** *** ** senses ******* ***** ** ***** * ***** *********. ***** **** period *******, **** ******* ********, *** *** **** ****** *****. The ********* ***** ** **** ****** ***** **** * *** hundred ($***) ** ******* ******** *******, ********* ** *** ****** of ***** ********* ******** ** ***** * **** ********* **** codes.

Comments (5)

* ** ******* ** ***** *** ******* ****** ** ******* in **** ****. ** *** **** ** **** ** ** area ***** ** ** *** *********, ***** *** ***** * comment?

******!

**** *******

*****,

*** ******* ****** *** ** ************ ******* "****** *" ***** additional ******* *** ** ****.

**'* **** * ***** **** * *** ***, *** *** fire **** ** ** *** ******** **** **.

****

****** ****. *'* ***** ** *** *** **** **** ******** for *********!

***** ***** * **** **** ***** **** *** ******** ***** over ** ***** ***** * *** ** ***** *** *****. There **** ***** ** * ******** ** ***'* *** ********* that ***'* ********** **** *********. * ****** ** **** ** IBC **** *** *** ******* ******* ****** ** *** *********** except *, *, & *. * ** *** ********* *** that's *** ******* ***** * *** **** *******. * ****** if ****** **** *** **** ******* ****** ********* ** ******* and *** ***** ** **** ********* *** **** ************* ***** decisions.

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