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 
 
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 Jimmy Waite
Sent: Tuesday, February 28, 2012 12:46 PM
To: [email protected]
Subject: RE: Underground Pipe Material

That's what I've always seen too, but I got a GC asking me where it says that 
in the code.

 Jimmy Waite, CET
 Design Engineer                                                                
           
 [email protected]
 mobile: 919.622.7030 


   3609 Bastion Lane  |  Raleigh, NC  27604  |  : 919.212.2356  |  : 
919.212.2357  |  www.piedmontfire.com

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Steve Mackinnon
Sent: Tuesday, February 28, 2012 12:30 PM
To: [email protected]
Subject: RE: Underground Pipe Material

Here in NY, we must run a minimum of 5'-0" (from building) of ductile
iron...

Steven MacKinnon
Senior Fire Protection Engineer
Hartcorn Plumbing & Heating Inc.
850 South 2nd Street
Ronkonkoma, NY 11779
631-580-2300 - Office
631-580-1090 - Fax
[email protected]
 
 
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Jimmy
Waite
Sent: Tuesday, February 28, 2012 12:07 PM
To: [email protected]
Subject: Underground Pipe Material

When underground pipe passes under a foundation and stubs up into a
building, does the pipe have to be Ductile Iron?  I know that's all I've
ever seen, but can C900 PVC pipe be used?  

 

I've browsed through the International Plumbing Code and didn't find any
discussions about this situation.

 

 

Thanks, 

 

 Jimmy Waite, CET

 Design Engineer


  <mailto:[email protected]> [email protected]

 mobile: 919.622.7030 

 

cid:[email protected]

   3609 Bastion Lane  |  Raleigh, NC  27604  |  ': 919.212.2356  |  6:
919.212.2357  |   <http://www.piedmontfire.com/> www.piedmontfire.com

 

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