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>
>
>
> -Original Message-
> From: Sprinklerforum On
> Behalf Of Bob Caputo via Sprinklerforum
> Sent: Thursday, August 19, 2021 5:13 PM
> To: Prahl, Craig/GVL ;
> sprinklerforum@lists.firesprinkler.org
> Cc: Bob Caputo ; John Denhardt <
> jdenha.
raig/GVL ;
sprinklerforum@lists.firesprinkler.org
Cc: Bob Caputo ; John Denhardt
Subject: RE: [EXTERNAL] Re: Stub-up Material
Not to mention it's a horrible practice in my opinion
Bob Caputo, President
American Fire Sprinkler Association
-Original Message-
From: Prahl, Craig/G
: [EXTERNAL] Re: Stub-up Material
While NFPA 24 may not restrict the use or installation of certain materials,
the manufacture's listing data may in fact restrict the use. It's a good
idea to review the listing of the material to see what restrictions may
apply to its use.
Also, some Risk Groups
PM
To: sprinklerforum@lists.firesprinkler.org
Cc: Prahl, Craig/GVL ; John Denhardt
Subject: RE: [EXTERNAL] Re: Stub-up Material
The prior editions of NFPA 24 do not restrict the use of non-metallic spigot
pieces (riser coming up through the floor from the underground piping) I
discovered
-
From: Sprinklerforum On
Behalf Of Prahl, Craig/GVL via Sprinklerforum
Sent: Tuesday, July 6, 2021 10:47 AM
To: sprinklerforum@lists.firesprinkler.org
Cc: Prahl, Craig/GVL ; John Denhardt
Subject: RE: [EXTERNAL] Re: Stub-up Material
Thanks for the additional comments John, oh and BTW, I guess
ay, July 6, 2021 11:22 AM
> To: sprinklerforum@lists.firesprinkler.org
> Cc: John Denhardt
> Subject: Re: [EXTERNAL] Re: Stub-up Material
>
> Looking at Craig's comments directly, I want to provide some information.
> *(in blue bold)*
>
> 1. Go to the manufacturer's data and
On Behalf
Of John Denhardt via Sprinklerforum
Sent: Tuesday, July 6, 2021 11:22 AM
To: sprinklerforum@lists.firesprinkler.org
Cc: John Denhardt
Subject: Re: [EXTERNAL] Re: Stub-up Material
Looking at Craig's comments directly, I want to provide some information. *(in
blue bold)*
1. Go
Looking at Craig's comments directly, I want to provide some information. *(in
blue bold)*
1. Go to the manufacturer's data and see if it is listed to be installed
above grade per UL and/or FM as a fire riser. * I am not aware of many
nonmetallic underground materials which are Listed for a fire
To repeat Steve's comment, Craig, in California unless the pipe was in a
concrete tunnel,
it would not be permitted to be installed with any fittings under the
foundation, which
forces the use of the in-building-riser.
The 90 at the end of the line, transitioning to above grade could not be
I think the question was related to the material, not the height of the
extension above the slab.
1. Go to the manufacturer's data and see if it is listed to be installed above
grade per UL and/or FM as a fire riser.
2. Exposure to elevated temperatures such as in a fire event can cause
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