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#87834 - 04/21/04 05:19 PM fire pads on boxes in rated walls
ccdave Offline
Member
Registered: 01/27/03
Posts: 59
Loc: culver city,calif. usa
Could someone point out where else other than 300.21 does the code require pads on the back of steel boxes in a common rated fire wall between two seperate apts?
Thanks much-dave
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#87835 - 04/21/04 05:22 PM Re: fire pads on boxes in rated walls
Ryan_J Offline
Moderator
Registered: 08/19/03
Posts: 1374
Loc: West Jordan, Utah, USA
Hi Dave. Take a look at the fine print note (FPN) under 300.21, and you will notice that it is mainly a building code and UL issue.
_________________________
Ryan Jackson,
Salt Lake City
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#87836 - 04/21/04 05:46 PM Re: fire pads on boxes in rated walls
Roger Offline
Member
Registered: 05/18/02
Posts: 1716
Loc: N.C.
Dave, as Ryan says, fire stopping and rated assemblies are outside the NEC.

There may be situations where pads may not be an approved assembly method between dwelling units.

You need to know the rating of the wall which should be information provided by the Architect.

Roger
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#87837 - 04/21/04 05:59 PM Re: fire pads on boxes in rated walls
George Corron Offline
Member
Registered: 05/16/01
Posts: 717
Loc: Lorton, Va USA
If it is a fire wall, you cannot have a opening within the same interstitial space. That is from the BOCA code, and the IBC.

If it means anything to you, we used tons of 'em at the Pentagon..... a building with a known fire problem.

If you need, reply here and I can provide a reference at work tomorrow.
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#87838 - 04/23/04 08:43 AM Re: fire pads on boxes in rated walls
ccdave Offline
Member
Registered: 01/27/03
Posts: 59
Loc: culver city,calif. usa
thanks for your input--dave
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