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Nfpa13....cpvc?

steveray

steveray

SAWHORSE
Joined
Nov 25, 2009
Messages
11,751
Location
West of the river CT
I have been told there is a way to use CPVC for a full 13 system....as long as it is concealed within drywall?....Can anyone point me in the right direction to find this information? Never seen it attempted before....I see where 6.3.6.1 talks briefly about it, but that is all....Thank You for your anticipated assistance!
 
6.3.7* Nonmetallic Pipe.

Nonmetallic pipe in accordance with Table 6.3.1.1 shall be investigated for suitability in automatic sprinkler installations and listed for this service.

6.3.7.1

Listed nonmetallic pipe shall be installed in accordance with its listing limitations, including installation instructions.

6.3.7.1.1

Manufacturer's installation instructions shall include its listing limitations.

6.3.7.2*

When nonmetallic pipe is used in combination systems utilizing steel piping internally coated with corrosion inhibitors and nonmetallic piping, the steel pipe coating shall be investigated for compatibility with the nonmetallic piping by a testing laboratory.

6.3.7.3*

When nonmetallic pipe is used in combination systems utilizing steel pipe that is not internally coated with chemical corrosion inhibitors, no additional evaluations shall be required.

6.3.7.4

When nonmetallic pipe is used in combination systems utilizing steel pipe, cutting oils and lubricants used for fabrication of the steel piping shall be compatible with the nonmetallic pipe materials.

6.3.7.5

Fire-stopping materials intended for use on nonmetallic piping penetrations shall be investigated for compatibility with the nonmetallic pipe materials.

6.3.7.6

Nonmetallic pipe listed for light hazard occupancies shall be permitted to be installed in ordinary hazard rooms of otherwise light hazard occupancies where the room does not exceed 400 ft2 (37 m2).

6.3.7.7

Nonmetallic pipe shall not be listed for portions of an occupancy classification.
 
You need to request a complete listing on the pipe a company wants to install.

Than check through the listing to see where and how the cvpc can be used.

Yes nfpa 13 says you can use it, but the listing tells you how.

The listing is more important
 
YAY!....funny that wasn't part of their permit submission.....that explains why they don't have a permit yet....even though all the pipe is in the building already......
 
steveray said:
YAY!....funny that wasn't part of their permit submission.....that explains why they don't have a permit yet....even though all the pipe is in the building already......
Click to expand...
Than it has to be legal!!!!!

You can even run some manufactures pipe exposed, With conditions
 
steveray said:
YAY!....funny that wasn't part of their permit submission.....that explains why they don't have a permit yet....even though all the pipe is in the building already......
Click to expand...
Whenever you get the spec sheet, check the date on the bottom.

Than go online and pull up the same paperwork to see if they gave you the latest updated paperwork
 
GF HARVEL CPVC Fire Sprinkler Products are UL Listed and C-UL Listed

by Underwriters Laboratories Inc. for use in:

• Light Hazard occupancies as defined in the Standard for Installation of

Sprinkler systems, NFPA 13.

• Residential occupancies up to and including four stories in height as

defined by NFPA 13R.

• Residential occupancies as defined in the Standard for Sprinkler

Systems in One and Two Family Dwellings, NFPA 13D.

• Installation of private fire service mains and their appurtenances,

NFPA 24.

GF Harvel CPVC Fire Sprinkler Products shall be employed in wet pipe

systems only (A wet pipe system contains water and is connected to a

water supply system so that the water will discharge immediately when

the sprinkler is opened.) GF Harvel CPVC fire sprinkler products are not

Listed for outdoor use.

READ THE REST OF THE LITERATURE FOR ANY SPECIAL CIRCUMSTANCES AND/OR INSTALLATION GUIDELINES.
 
Well....I know the attic is going to be a dry system....Pretty sure they are using Blazemaster.....I didn't find good install info on BM's site.....just the typical our stuff is good, buy it kinda thing....didn't have much time yesterday, jury duty got cancelled today, so I should have lots of office time with no inspections scheduled.... :)
 
I do not think they can use cvpc for a dry system in the attic

what type of occupancy is this
 
Apartment building with common facilities...R2,B,A3....I have asked them for the listing and manufacturers install guide, we'll see how that goes...
 
Last edited by a moderator:
Combustible Concealed Spaces (UL)

TYCO CPVC Pipe and Fittings are not approved for installation in combustible

concealed spaces requiring sprinklers, as referenced in NFPA 13 unless

protected by sprinklers specifically Listed for this application.

Anyone understand this first part?^^^I am going to have concealed combustible protected areas......Are they just saying that the heads have to be properly listed (for concealed comb)? Or are they saying you flatout can't use the CPVC? Or what other listing would the heads have?

Although NFPA

13R and 13D permit the omission of sprinklers from combustible concealed

spaces, Tyco CPVC Pipe and Fittings can be installed in these areas when

protecting residential occupancies according to these standards.

For installations where sprinkler pipe runs through an attic space that requires

sprinklers per NFPA, CPVC piping shall be protected in order to meet the

requirements of its UL and C-UL Listings. Additionally, the authority having

jurisdiction shall be consulted prior to any installation of CPVC in attic spaces

requiring sprinklers. Protection methods and requirements may vary by

jurisdiction and are subject to interpretation.
 
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steveray said:
Combustible Concealed Spaces (UL)TYCO CPVC Pipe and Fittings are not approved for installation in combustible

concealed spaces requiring sprinklers, as referenced in NFPA 13 unless

protected by sprinklers specifically Listed for this application.

Anyone understand this first part?^^^I am going to have concealed combustible protected areas......Are they just saying that the heads have to be properly listed (for concealed comb)? Or are they saying you flatout can't use the CPVC? Or what other listing would the heads have?

Although NFPA

13R and 13D permit the omission of sprinklers from combustible concealed

spaces, Tyco CPVC Pipe and Fittings can be installed in these areas when

protecting residential occupancies according to these standards.

For installations where sprinkler pipe runs through an attic space that requires

sprinklers per NFPA, CPVC piping shall be protected in order to meet the

requirements of its UL and C-UL Listings. Additionally, the authority having

jurisdiction shall be consulted prior to any installation of CPVC in attic spaces

requiring sprinklers. Protection methods and requirements may vary by

jurisdiction and are subject to interpretation.
Click to expand...
Once again please check with the manufacture of the pipe for the specific job, but

out of this one:

http://www.harvel.com/sites/www.harvel.com/files/documents/Fire_Sprinkler-Installation_Instructions-English.pdf

Combustible Attic Spaces with

Specific Use Sprinklers

In accordance with the UL Listing, GF Harvel CPVC Fire Sprinkler

Products may be installed within the attic space provided the attic space

is protected with UL Listed Tyco Fire Products Specific Application Attic

Sprinklers.

Specific Application Attic Sprinklers are sprinklers designed to provide

protection of specific light hazard combustible, as well as non-combustible,

attic spaces requiring sprinkler protection.

Installation Requirements

When using the Specific Application Attic Sprinklers, GF Harvel

CPVC Fire Sprinkler Products may be installed to feed the wet system

sprinklers below the ceiling and exposed to feed wet system specific

application attic sprinklers provided the system is installed in accordance

with the Tyco Fire Products’ Technical Data Sheet TFP610 (dated October

2005) for Specific Application Attic Sprinklers.

My take is that if you have cvpc in the attic to protect the rooms below you need tyco attic heads in the attic, if the attic area is combustible construction

http://www.tyco-fire.com/TD_TFP/TFP/TFP610_05_2008.pdf
 
"My take is that if you have cvpc in the attic to protect the rooms below you need tyco attic heads in the attic, if the attic area is combustible construction"

They could drywall protect it also....no?

1 Building is 13, the other 3 are 13R, I believe it is TYCO, that is what they sent me, no listing, but a 90 page install guide....it is a start....It is all open web truss and at least the 13 building will need sprinklers in the floor systems....
 
No no no

The scenario is you have a wood construction attic/roof

Cvpc pipe protecting the area below the attic and sprinklers in the attic to protect all the wood in the attic

So no way to cover all the wood
 
Are you just talking about the 13 building? The 3rd floor ceiling sprinkler piping (13R building) could be protected via drywall on top of the trusses (ceiling joists)....correct?

cda said:
No no no The scenario is you have a wood construction attic/roof

Cvpc pipe protecting the area below the attic and sprinklers in the attic to protect all the wood in the attic

So no way to cover all the wood
Click to expand...
 
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