Can you wrap the exposed pipe with fireproofing or find a spray-on product that 
is compatible with CPVC?
Rick Matsuda 

> On May 30, 2023, at 10:01 AM, Brett Peters <[email protected]> wrote:
> 
> 
> In these situations I always go back to the GC or building owner, project was 
> bid to code and there was no disclosure of the AHJ’s requirements above (or 
> different) than code, submit an extra and have the people that have to pay 
> the bill go after the AHJ. 
> Sometimes when someone’s lawyer gets involved over additional costs they 
> change their mind. 
> Other than that, not much you can do with someone who can’t be reasoned with
> 
>> On Tue, May 30, 2023 at 1:52 PM Travis Mack <[email protected]> wrote:
>> Good afternoon all.  I’m trying to help a contractor with an issue he is 
>> having with an AHJ.  I will say that this AHJ has been a challenge on many 
>> other projects. He has had informal interpretations from NFSA and AFSA about 
>> other issues and this AHJ just says they are all wrong and he is the only 
>> one that sees how the standard is correctly interpreted.  So, it is likely a 
>> mute point to push another issue with them, but:
>> 
>>  
>> 
>> Is it permissible to install exposed CPVC in a mechanical closet of ±40 sq 
>> ft?  Light hazard, the piping can be installed exposed provided that certain 
>> criteria are met with sprinklers, spacing, etc.  The listings go on to state 
>> that CPVC can be installed in ordinary hazard compartments of otherwise 
>> light hazard buildings, etc..  This is just a weird project where it was 
>> much easier to put a pendent sprinkler 6” off the wall than get a sidewall 
>> in the room.  The CPVC piping is exposed for about 6” going into the room.  
>> This AHJ is having them rip it all out, cut out the drywall and drop down 
>> with a sidewall.  I believe they were pinned high in the adjoining room and 
>> couldn’t readily drop down to get the sidewall minimum distance down from 
>> the ceiling, or something like that.
>> 
>>  
>> 
>>  
>> 
>> Travis Mack, SET
>> 
>> M.E.P.CAD |
>> 
>> 181 N. Arroyo Grande Blvd. #105 I Henderson, NV 89074
>> 
>> www.mepcad.com | m: 480.547.9348
>> 
>>  
>> 
>> AutoSPRINK  |  AutoSPRINK FAB  |  AutoSPRINK RVT  |  AlarmCAD
>> 
>>  
>> 
>> Book appointment time in my calendar
>> 
>> https://calendly.com/t_mack_mepcad
>> 
>>  
>> 
>> 
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> -- 
> Thank You
> Brett Peters
> PFPS Ltd
> (780) 777 0568
> Sent From My iPhone
> 
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