fire wall

[gerry]

Is fire sealant needed for a pentration on one side of a fire wall. For ex: mc cable is run inside double 5/8 sheetrock to rect. or only when going completely through.Just wondering I see a lot of cables poked into rock. Thanks

 

[jimwalker]

Re: fire wall

All penitrations need sealed.It's not only a fire wall but a smoke wall

[ January 31, 2006, 06:05 AM: Message edited by: jimwalker ]

 

[sandsnow]

Re: fire wall

Oh the misinformation and oversimplification of protecting penetrations of a fire resistive assembly.

No offense Jim, but sealed is not the correct term. And it's only a smoke wall if there is such a term if a listed smoke fire damper is required to be installed

In order to properly discuss this subject, proper language needs to be used.

If it is a wall with an hourly fire resistive rating then any penetrations need to have a through penetration firestop system installed.

Simply squirting Hilti FS-1 all over the place does not cut it.

Any Fill, Void or Cavity Material or fire caulk as it is commonly called means nothing unless it is installed per a through penetration firestop system

 

[gerry]

Re: fire wall

Thanks for the replies.So the answer to my ques.is if your not through the wall than nothing has to be applied.Thats probably why I see alot of cables poked in rock with no fire stop/sealant.Thanks again guys.

 

[sandsnow]

Re: fire wall

Gerry
If you go through one side or one Membrane, then the through penetration firestop is used for a "half penetration"