But the annex materials still will say 'Environmental conditions should be 
considered as outlined in 23.1.6.1.2'.  So to Jim's point if one used say 
plastic UG AG then transitioned and something happened then they'd get you on 
sure you complied with Ch. 6 but not Ch. 23.  To an extent an hypothetical 
problem because really most (but certainly not all) stubs through the floor are 
in relatively protected locations. 

Chris Cahill, PE*
Senior Fire Protection Engineer, Aviation & Facilities Group
Burns & McDonnell
8201 Norman Center Drive
Bloomington, MN 55437
Phone:  952.656.3652
Fax:  952.229.2923
[email protected]
www.burnsmcd.com

Proud to be one of FORTUNE's 100 Best Companies to Work For
*Registered in: MN





-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Jim Davidson
Sent: Thursday, March 01, 2012 9:10 AM
To: [email protected]
Subject: RE: Underground Pipe Material

Roland,

It is nice that the NFPA 13 committee has modified, however the lawyers will 
have a field day hanging the contractor out to dry since the contractor will be 
saying, in front of a jury, "that he did not follow the pipe manufacturer's UL 
listing because NFPA 13 (a consensus minimum level standard)    allowed him to 
not follow the UL listing" I do not think that NFPA 13 will get in front of the 
jury to say the NFPA 13 Committee will accept the liability. 

Jim Davidson 
 
Davidson Associates
Fire Protection * Medical Gas * Code Consulting
302-994-9500   Fax:302-234-1781


-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Roland Huggins
Sent: Wednesday, February 29, 2012 6:16 PM
To: [email protected]
Subject: Re: Underground Pipe Material

Such removal would no longer be enforceable since it is explicitly addressed by 
13.  This is another RARE case where the normal process (ie follow the 
cut-sheet requirements via the listing) is exempted by the technical committee. 
 Another example is the listed sprinklers required by 8.15.1.6 for concealed 
combustible spaces with a depth less than 36 in.  The listing applies only to 
solid wood joist but
8.15.1.7 allows that sprinkler to be used with composite wood joists.

Roland

On Feb 29, 2012, at 2:47 PM, Jim Davidson wrote:

> You will need to check the UL listing of the pipe and the pipe 
> manufacturer's tech data regarding the loading the pipe can take from 
> building foundations and other loads such as traffic, truck wheel 
> loads on flexible pavement(asphalt), most of the underground plastic 
> pipe is not listed for use above ground, and you are required to use a 
> DI transition piece. I have seen AHJ require the removal of the 
> plastic pipe and replacement with DI transition piece, very expensive 
> after floor is poured and walls are up.
>
> Jim Davidson
>
> Jim Davidson
>
> Davidson Associates
> Fire Protection * Medical Gas * Code Consulting
> 302-994-9500   Fax:302-234-1781
>
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