Firewall Penetrations

[frizbeedog]

Thats better

Thats better

Most of the cable and raceway manufacturer's provide UL system details their products are listed with. The fire protection companies do the same. Hilti also prvides some good online fire stop courses that are free.

I require UL system detail for the through and membrane penetrations (based on the type of assembly penetrated) to be provide with the construction documents at the time of plan review.

We even have a fire wall rough that is a separate inspection from the regular wall rough. It is usually done in conjunction with the first fire wall screw pattern inspection.

now we're making progress. frizbeedog like. can i have a buisquit?

 

[roger]

rerefer to original question. (not that i don't appreciate the info). So... Any intelligent thoughts as to whay this is left to building codes.

Frizbeedog, Building codes set building construction guidelines.


Since the NEC doesn't address architectural details, it couldn't tell us how to properly seal penetrations.

Roger

 

[frizbeedog]

Thanks Rodger:smile:

 

[frizbeedog]

I suppose I really was looking for a guideline for the methods to employ based on the hour rating of the wall. Does that make sense? One building inspector just required fire cualking around the cable where it penetrated. This was a one hour wall. Are the methods that varried by jurisdiction or is there some standard? Am I to assume that the manufacturer of the sealing assmbly I'm using will have the hour rating listed and all I have to do is know the rating of the wall?

 

[bphgravity]

You need to follow the system. See Chapter 7 of the IBC and the Ul Fire Directory.

 

[frizbeedog]

Regarding High Horses

Regarding High Horses

GET OFF YOUR HIGH HORSE ROGER, I THINK I SPEAK FOR EVERYBODY, WHEN I SAY WE ARE ALL GETTING TIRED OF YOUR "HOLIER THAN THOU" ATTITUDE.

This was the only one I saw so far. Good info, keep it comming.

 

[frizbeedog]

Thanks Rodger:smile:

oops "roger"

 

[dana1028]

I suppose I really was looking for a guideline for the methods to employ based on the hour rating of the wall. Does that make sense? One building inspector just required fire cualking around the cable where it penetrated. This was a one hour wall. Are the methods that varried by jurisdiction or is there some standard? Am I to assume that the manufacturer of the sealing assmbly I'm using will have the hour rating listed and all I have to do is know the rating of the wall?

Typically within the approved set of plans there is a complete set of details providing information for the approved methods of sealing penetrations through fire rated assemblies....1 hr, 2 hr, 3 hr., etc.

This information on the plans is quite detailed - specific information is provided about the fire caulking and the limitations therein...annular limitations, etc. If a space is larger than what the fire caulking is rated for, then other provisions are made.

As mentioned earlier, this is all controlled by the building codes; each fire rated assembly is listed [UL is not the only listing agency], as is each type of caulk as to the particular application.

Typically on the large jobs [condos, apartments, hi-rise] there is a separate contractor that does nothing but provide fire caulking and sealing of penetrations...he follows behind all the other trades [plumbers, mechanical, electric, tel-comm cabling,etc.].

On the job I'm on at the moment, the framers provide the 2x lumber fire blocking; the sheetrockers provide the sheetrock-type fire blocking; another contractor provides the rock-wool-type of fire blocking; the mechanical contractor provides the fire & smoke dampers; and the fire caulking contractor seals around all the penetrations with the particular brand of fire caulk the architect specified....the plans show details for every type and size of hole and how that particular type of penetration will be blocked/sealed.

 

[wireman71]

Get a manufactures manual from a company such as Specseal. It will detail the different applications of their product. So you look through the book, find something that looks like your doing. Buy the product. Use as directed. Photocopy UL paper out of book for inspectors. Your set.

 

[POWER_PIG]

not my job?

not my job?

Since this does not fall under the NEC, I can ( in theory) tell the GC to address these problems?

 

[roger]

Since this does not fall under the NEC, I can ( in theory) tell the GC to address these problems?

Depends on how your contract or agreement is worded.

Roger

 

[nakulak]

yeah, if you can get out of it let us know what it is you told the gc. we always exclude hole cutting, hole patching, etc etc but it never seems to do any good with some gc's