Re: Combustible Concealed Space-Area Reduction

[Roland Huggins]

the prior ones were listed to 36 inches which triggered the issue.  Even if you 
have one that still says 36 inches, the next edition will say you can exceed it 
(aka supercedes the listing just like they can be used with TJI whereas they 
are listed just for solid wood joist).

Clear as mud??

Roland


Roland Huggins, PE - VP Engineering
American Fire Sprinkler Assn.   ---  Fire Sprinklers Saves Lives
Dallas, TX
http://www.firesprinkler.org <http://www.firesprinkler.org/>



> On Oct 14, 2016, at 8:26 AM, Cliff Whitfield <cl...@fire-design.com> wrote:
> 
> Hi Roland,
>  
> I’m a little confused (no big surprise).  I just went back to look at the 
> Globe IC and it appears to be listed for 60”.  Am I missing something in your 
> post or in their listing?
>  
> Thanks,
> Cliff Whitfield 
>  
> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of Roland 
> Huggins
> Sent: Friday, October 14, 2016 11:15 AM
> To: sprinklerforum@lists.firesprinkler.org 
> <mailto:sprinklerforum@lists.firesprinkler.org>
> Subject: Re: Combustible Concealed Space-Area Reduction
>  
> you do not go to the floor below the ceiling in determining the applicable 
> height.  Below the ceiling is treated as a totally separate portion of the 
> system with its own design basis.  The only exception to this is when your 
> ceiling is not solid like a metal grated mezzanine floor or your using the 
> pipe schedule and serving both areas with the same BL.
>  
> As for the CC sprinklers (and other mfgs), they are actually listed for NO 
> MORE THAN 36 inches.  This can be a problem when there is a long run and a 2 
> in 12 slope.  The 2019 ed will allow it to protect the higher area as well.
>  
> Roland
>  
> Roland Huggins, PE - VP Engineering
> American Fire Sprinkler Assn.   ---  Fire Sprinklers Saves Lives
> Dallas, TX
> http://www.firesprinkler.org <http://www.firesprinkler.org/>
>  
>  
>  
>> On Oct 14, 2016, at 7:44 AM, Taylor Schumacher <tay...@sfsprinkler.com 
>> <mailto:tay...@sfsprinkler.com>> wrote:
>>  
>> Thanks for the responses. The concealed space is 4’ to 6’ in areas and is 
>> above a convention center, so if we count to the floor we exceed the 20’ max 
>> ceiling height. Wasn’t aware of the CC sprinklers allowing 60 inch spacing 
>> but draft stopping an area this big makes me cringe. We were able to respace 
>> the sprinklers and got the calculation to work.
>>  
>> TAYLOR SCHUMACHER, CET
>> Security Fire Sprinkler 
>> P  320.656.0847  |  F  320.656.0312  |  E  tay...@sfsprinkler.com 
>> <mailto:tay...@sfsprinkler.com>
>>  
>> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
>> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of John 
>> Corcoran
>> Sent: Friday, October 14, 2016 8:56 AM
>> To: sprinklerforum@lists.firesprinkler.org 
>> <mailto:sprinklerforum@lists.firesprinkler.org>
>> Subject: RE: Combustible Concealed Space-Area Reduction
>>  
>> Some input from our tech team:
>>  
>> While NFPA 13 "requires" that specially tested and listed sprinklers be used 
>> in combustible concealed spaces 36" and less, the special listed sprinklers 
>> are not required for spaces greater than 36". Standard coverage, QR 
>> sprinklers would be allowed, and the area reduction would also be allowed ( 
>> Light Hazard space?). Globe does offer a specially listed "IC" sprinkler for 
>> spaces to depths to 60" and the possibility of utilizing CPVC pipe ( See 
>> technical data sheet for specifics of when CPVC can be utilized). The 
>> calculation area is typically 1000 sq. ft. with draft curtains being 
>> required. 
>> 
>> Kevin Maughan 
>> Globe Sprinkler Corporation
>> Cell - 401-234-3967
>> Sent from my iPhone
>>  
>> And from Karl Wiegand:
>> While the Tyco CC 3 also has the increased 60 inch vertical protection area 
>> listing; it should be noted that the Reliable KFR CCS is listed to be used 
>> in areas that are 36 inches in height or less.
>>  
>>  
>>  
>> John Corcoran
>>  
>> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
>> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of Cliff 
>> Whitfield
>> Sent: Thursday, October 13, 2016 6:12 PM
>> To: sprinklerforum@lists.firesprinkler.org 
>> <mailto:sprinklerforum@lists.firesprinkler.org>
>> Subject: RE: Combustible Concealed Sp

Re: Combustible Concealed Space-Area Reduction

[Roland Huggins]

you do not go to the floor below the ceiling in determining the applicable 
height.  Below the ceiling is treated as a totally separate portion of the 
system with its own design basis.  The only exception to this is when your 
ceiling is not solid like a metal grated mezzanine floor or your using the pipe 
schedule and serving both areas with the same BL.

As for the CC sprinklers (and other mfgs), they are actually listed for NO MORE 
THAN 36 inches.  This can be a problem when there is a long run and a 2 in 12 
slope.  The 2019 ed will allow it to protect the higher area as well.

Roland

Roland Huggins, PE - VP Engineering
American Fire Sprinkler Assn.   ---  Fire Sprinklers Saves Lives
Dallas, TX
http://www.firesprinkler.org <http://www.firesprinkler.org/>



> On Oct 14, 2016, at 7:44 AM, Taylor Schumacher <tay...@sfsprinkler.com> wrote:
> 
> Thanks for the responses. The concealed space is 4’ to 6’ in areas and is 
> above a convention center, so if we count to the floor we exceed the 20’ max 
> ceiling height. Wasn’t aware of the CC sprinklers allowing 60 inch spacing 
> but draft stopping an area this big makes me cringe. We were able to respace 
> the sprinklers and got the calculation to work.
>  
> TAYLOR SCHUMACHER, CET
> Security Fire Sprinkler 
> P  320.656.0847  |  F  320.656.0312  |  E  tay...@sfsprinkler.com 
> <mailto:tay...@sfsprinkler.com>
>  
> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of John 
> Corcoran
> Sent: Friday, October 14, 2016 8:56 AM
> To: sprinklerforum@lists.firesprinkler.org 
> <mailto:sprinklerforum@lists.firesprinkler.org>
> Subject: RE: Combustible Concealed Space-Area Reduction
>  
> Some input from our tech team:
>  
> While NFPA 13 "requires" that specially tested and listed sprinklers be used 
> in combustible concealed spaces 36" and less, the special listed sprinklers 
> are not required for spaces greater than 36". Standard coverage, QR 
> sprinklers would be allowed, and the area reduction would also be allowed ( 
> Light Hazard space?). Globe does offer a specially listed "IC" sprinkler for 
> spaces to depths to 60" and the possibility of utilizing CPVC pipe ( See 
> technical data sheet for specifics of when CPVC can be utilized). The 
> calculation area is typically 1000 sq. ft. with draft curtains being 
> required. 
> 
> Kevin Maughan 
> Globe Sprinkler Corporation
> Cell - 401-234-3967
> Sent from my iPhone
>  
> And from Karl Wiegand:
> While the Tyco CC 3 also has the increased 60 inch vertical protection area 
> listing; it should be noted that the Reliable KFR CCS is listed to be used in 
> areas that are 36 inches in height or less.
>  
>  
>  
> John Corcoran
>  
> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of Cliff 
> Whitfield
> Sent: Thursday, October 13, 2016 6:12 PM
> To: sprinklerforum@lists.firesprinkler.org 
> <mailto:sprinklerforum@lists.firesprinkler.org>
> Subject: RE: Combustible Concealed Space-Area Reduction
>  
> I was thinking that the standard changed to 60” but I may be mistaken or on 
> another planet.  I don’t have 2016 in front of me.  I know 2013 allows using 
> SSU once it exceeds 36”.
>  
> I’m not sure how the cost compares to QR SSU but I do know that there are 
> sprinklers listed for CCS up to 60” deep with 16 x 16 spacing on the market 
> now.
>  
> Cliff Whitfield 
>  
> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of Travis 
> Mack, SET
> Sent: Thursday, October 13, 2016 5:51 PM
> To: sprinklerforum@lists.firesprinkler.org 
> <mailto:sprinklerforum@lists.firesprinkler.org>
> Subject: Re: Combustible Concealed Space-Area Reduction
>  
> I think he is saying that his concealed space is >36" in depth.  If so, then 
> specially listed are not mandated.
> 
> If so, I have always used the QR reduction for 10' ceiling height in those 
> spaces provided it is a wet system.  I have had some AHJs require I go to the 
> floor to get my deck height.  So, if you were 14' floor to floor with a 10' 
> ceiling and 24" open web floor trusses, then you could use QR SSU to protect. 
>  A conservative approach would be to go with 14' for your QR reduction point.
> 
> Travis Mack, SET
> MFP Design, LLC
> 2508 E Lodgepole Drive
> Gilbert, AZ 85298
> 480-505-9271
> fax: 866-430-6107
> email:tm...@mfpdesign.com <mailto:email:tm...@mfpdesign.com>
>  
>

RE: Combustible Concealed Space-Area Reduction

[Taylor Schumacher]

Thanks for the responses. The concealed space is 4' to 6' in areas and is above 
a convention center, so if we count to the floor we exceed the 20' max ceiling 
height. Wasn't aware of the CC sprinklers allowing 60 inch spacing but draft 
stopping an area this big makes me cringe. We were able to respace the 
sprinklers and got the calculation to work.

TAYLOR SCHUMACHER, CET
Security Fire Sprinkler
P  320.656.0847  |  F  320.656.0312  |  E  tay...@sfsprinkler.com

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of John Corcoran
Sent: Friday, October 14, 2016 8:56 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Combustible Concealed Space-Area Reduction

Some input from our tech team:

While NFPA 13 "requires" that specially tested and listed sprinklers be used in 
combustible concealed spaces 36" and less, the special listed sprinklers are 
not required for spaces greater than 36". Standard coverage, QR sprinklers 
would be allowed, and the area reduction would also be allowed ( Light Hazard 
space?). Globe does offer a specially listed "IC" sprinkler for spaces to 
depths to 60" and the possibility of utilizing CPVC pipe ( See technical data 
sheet for specifics of when CPVC can be utilized). The calculation area is 
typically 1000 sq. ft. with draft curtains being required.

Kevin Maughan
Globe Sprinkler Corporation
Cell - 401-234-3967
Sent from my iPhone

And from Karl Wiegand:
While the Tyco CC 3 also has the increased 60 inch vertical protection area 
listing; it should be noted that the Reliable KFR CCS is listed to be used in 
areas that are 36 inches in height or less.



John Corcoran

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of Cliff Whitfield
Sent: Thursday, October 13, 2016 6:12 PM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: Combustible Concealed Space-Area Reduction

I was thinking that the standard changed to 60" but I may be mistaken or on 
another planet.  I don't have 2016 in front of me.  I know 2013 allows using 
SSU once it exceeds 36".

I'm not sure how the cost compares to QR SSU but I do know that there are 
sprinklers listed for CCS up to 60" deep with 16 x 16 spacing on the market now.

Cliff Whitfield

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of Travis Mack, SET
Sent: Thursday, October 13, 2016 5:51 PM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: Re: Combustible Concealed Space-Area Reduction


I think he is saying that his concealed space is >36" in depth.  If so, then 
specially listed are not mandated.

If so, I have always used the QR reduction for 10' ceiling height in those 
spaces provided it is a wet system.  I have had some AHJs require I go to the 
floor to get my deck height.  So, if you were 14' floor to floor with a 10' 
ceiling and 24" open web floor trusses, then you could use QR SSU to protect.  
A conservative approach would be to go with 14' for your QR reduction point.

Travis Mack, SET

MFP Design, LLC

2508 E Lodgepole Drive

Gilbert, AZ 85298

480-505-9271

fax: 866-430-6107

email:tm...@mfpdesign.com<mailto:email:tm...@mfpdesign.com>



http://www.mfpdesign.com

https://www.facebook.com/pages/MFP-Design-LLC/92218417692

Send large files to us via: https://www.hightail.com/u/MFPDesign

LinkedIn: https://www.linkedin.com/in/travismack
On 10/13/2016 2:26 PM, Cliff Whitfield wrote:
Taylor,

I believe you will need to use Concealed Space Sprinklers for that area and 
will need to calc based on the manf data sheet.

Cliff Whitfield, SET
President
Fire Design, Inc.


From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of Taylor Schumacher
Sent: Thursday, October 13, 2016 4:55 PM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: Combustible Concealed Space-Area Reduction

Good afternoon forum,

I'm looking to apply the remote area reduction per 11.2.3.2.3.1 in NFPA 13 2010 
to a floor truss space over 36" using quick response, standard spray sprinklers.

Could anyone tell me if my assumptions are right?

TAYLOR SCHUMACHER, CET
Security Fire Sprinkler
P  320.656.0847  |  F  320.656.0312  |  E  
tay...@sfsprinkler.com<mailto:tay...@sfsprinkler.com>



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___

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RE: Combustible Concealed Space-Area Reduction

[John Corcoran]

Some input from our tech team:

While NFPA 13 "requires" that specially tested and listed sprinklers be used in 
combustible concealed spaces 36" and less, the special listed sprinklers are 
not required for spaces greater than 36". Standard coverage, QR sprinklers 
would be allowed, and the area reduction would also be allowed ( Light Hazard 
space?). Globe does offer a specially listed "IC" sprinkler for spaces to 
depths to 60" and the possibility of utilizing CPVC pipe ( See technical data 
sheet for specifics of when CPVC can be utilized). The calculation area is 
typically 1000 sq. ft. with draft curtains being required.

Kevin Maughan
Globe Sprinkler Corporation
Cell - 401-234-3967
Sent from my iPhone

And from Karl Wiegand:
While the Tyco CC 3 also has the increased 60 inch vertical protection area 
listing; it should be noted that the Reliable KFR CCS is listed to be used in 
areas that are 36 inches in height or less.



John Corcoran

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of Cliff Whitfield
Sent: Thursday, October 13, 2016 6:12 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Combustible Concealed Space-Area Reduction

I was thinking that the standard changed to 60" but I may be mistaken or on 
another planet.  I don't have 2016 in front of me.  I know 2013 allows using 
SSU once it exceeds 36".

I'm not sure how the cost compares to QR SSU but I do know that there are 
sprinklers listed for CCS up to 60" deep with 16 x 16 spacing on the market now.

Cliff Whitfield

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of Travis Mack, SET
Sent: Thursday, October 13, 2016 5:51 PM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: Re: Combustible Concealed Space-Area Reduction


I think he is saying that his concealed space is >36" in depth.  If so, then 
specially listed are not mandated.

If so, I have always used the QR reduction for 10' ceiling height in those 
spaces provided it is a wet system.  I have had some AHJs require I go to the 
floor to get my deck height.  So, if you were 14' floor to floor with a 10' 
ceiling and 24" open web floor trusses, then you could use QR SSU to protect.  
A conservative approach would be to go with 14' for your QR reduction point.

Travis Mack, SET

MFP Design, LLC

2508 E Lodgepole Drive

Gilbert, AZ 85298

480-505-9271

fax: 866-430-6107

email:tm...@mfpdesign.com<mailto:email:tm...@mfpdesign.com>



http://www.mfpdesign.com

https://www.facebook.com/pages/MFP-Design-LLC/92218417692

Send large files to us via: https://www.hightail.com/u/MFPDesign

LinkedIn: https://www.linkedin.com/in/travismack
On 10/13/2016 2:26 PM, Cliff Whitfield wrote:
Taylor,

I believe you will need to use Concealed Space Sprinklers for that area and 
will need to calc based on the manf data sheet.

Cliff Whitfield, SET
President
Fire Design, Inc.


From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of Taylor Schumacher
Sent: Thursday, October 13, 2016 4:55 PM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: Combustible Concealed Space-Area Reduction

Good afternoon forum,

I'm looking to apply the remote area reduction per 11.2.3.2.3.1 in NFPA 13 2010 
to a floor truss space over 36" using quick response, standard spray sprinklers.

Could anyone tell me if my assumptions are right?

TAYLOR SCHUMACHER, CET
Security Fire Sprinkler
P  320.656.0847  |  F  320.656.0312  |  E  
tay...@sfsprinkler.com<mailto:tay...@sfsprinkler.com>



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Re: Combustible Concealed Space-Area Reduction

[Ben Young]

Cliff,

Code didn't change they are still only required in spaces 36" and less, but
with the expanded listings for the newer CC heads from Reliable, Tyco, and
Globe you can use them as EC heads in some cases for spaces up to 60" deep,
which can come in handy.


Benjamin Young

On Thu, Oct 13, 2016 at 6:11 PM, Cliff Whitfield <cl...@fire-design.com>
wrote:

> I was thinking that the standard changed to 60” but I may be mistaken or
> on another planet.  I don’t have 2016 in front of me.  I know 2013 allows
> using SSU once it exceeds 36”.
>
>
>
> I’m not sure how the cost compares to QR SSU but I do know that there are
> sprinklers listed for CCS up to 60” deep with 16 x 16 spacing on the market
> now.
>
>
>
> Cliff Whitfield
>
>
>
> *From:* Sprinklerforum [mailto:sprinklerforum-bounces@lists.firesprinkler.
> org] *On Behalf Of *Travis Mack, SET
> *Sent:* Thursday, October 13, 2016 5:51 PM
> *To:* sprinklerforum@lists.firesprinkler.org
> *Subject:* Re: Combustible Concealed Space-Area Reduction
>
>
>
> I think he is saying that his concealed space is >36" in depth.  If so,
> then specially listed are not mandated.
>
> If so, I have always used the QR reduction for 10' ceiling height in those
> spaces provided it is a wet system.  I have had some AHJs require I go to
> the floor to get my deck height.  So, if you were 14' floor to floor with a
> 10' ceiling and 24" open web floor trusses, then you could use QR SSU to
> protect.  A conservative approach would be to go with 14' for your QR
> reduction point.
>
> Travis Mack, SET
>
> MFP Design, LLC
>
> 2508 E Lodgepole Drive
>
> Gilbert, AZ 85298
>
> 480-505-9271
>
> fax: 866-430-6107
>
> email:tm...@mfpdesign.com
>
>
>
> http://www.mfpdesign.com
>
> https://www.facebook.com/pages/MFP-Design-LLC/92218417692
>
> Send large files to us via: https://www.hightail.com/u/MFPDesign
>
> LinkedIn: https://www.linkedin.com/in/travismack
>
> On 10/13/2016 2:26 PM, Cliff Whitfield wrote:
>
> Taylor,
>
>
>
> I believe you will need to use Concealed Space Sprinklers for that area
> and will need to calc based on the manf data sheet.
>
>
>
> Cliff Whitfield, SET
>
> President
>
> Fire Design, Inc.
>
>
>
>
>
> *From:* Sprinklerforum [mailto:sprinklerforum-bounces@lists.firesprinkler.
> org <sprinklerforum-boun...@lists.firesprinkler.org>] *On Behalf Of *Taylor
> Schumacher
> *Sent:* Thursday, October 13, 2016 4:55 PM
> *To:* sprinklerforum@lists.firesprinkler.org
> *Subject:* Combustible Concealed Space-Area Reduction
>
>
>
> Good afternoon forum,
>
>
>
> I’m looking to apply the remote area reduction per 11.2.3.2.3.1 in NFPA 13
> 2010 to a floor truss space over 36” using quick response, standard spray
> sprinklers.
>
>
>
> Could anyone tell me if my assumptions are right?
>
>
>
> *TAYLOR SCHUMACHER, CET*
>
> Security Fire Sprinkler
>
> *P  *320.656.0847  |  *F * 320.656.0312  |  *E  *tay...@sfsprinkler.com
>
>
>
>
> --
>
> [image: Image removed by sender. Avast logo]
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>
> ___
>
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>
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>
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RE: Combustible Concealed Space-Area Reduction

[Cliff Whitfield]

I was thinking that the standard changed to 60" but I may be mistaken or on
another planet.  I don't have 2016 in front of me.  I know 2013 allows using
SSU once it exceeds 36".

 

I'm not sure how the cost compares to QR SSU but I do know that there are
sprinklers listed for CCS up to 60" deep with 16 x 16 spacing on the market
now.

 

Cliff Whitfield 

 

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
On Behalf Of Travis Mack, SET
Sent: Thursday, October 13, 2016 5:51 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Re: Combustible Concealed Space-Area Reduction

 

I think he is saying that his concealed space is >36" in depth.  If so, then
specially listed are not mandated.

If so, I have always used the QR reduction for 10' ceiling height in those
spaces provided it is a wet system.  I have had some AHJs require I go to
the floor to get my deck height.  So, if you were 14' floor to floor with a
10' ceiling and 24" open web floor trusses, then you could use QR SSU to
protect.  A conservative approach would be to go with 14' for your QR
reduction point.

Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:tm...@mfpdesign.com <mailto:email:tm...@mfpdesign.com> 
 
http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign 
LinkedIn: https://www.linkedin.com/in/travismack

On 10/13/2016 2:26 PM, Cliff Whitfield wrote:

Taylor,

 

I believe you will need to use Concealed Space Sprinklers for that area and
will need to calc based on the manf data sheet.

 

Cliff Whitfield, SET

President

Fire Design, Inc.

 

 

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
On Behalf Of Taylor Schumacher
Sent: Thursday, October 13, 2016 4:55 PM
To: sprinklerforum@lists.firesprinkler.org
<mailto:sprinklerforum@lists.firesprinkler.org> 
Subject: Combustible Concealed Space-Area Reduction

 

Good afternoon forum,

 

I'm looking to apply the remote area reduction per 11.2.3.2.3.1 in NFPA 13
2010 to a floor truss space over 36" using quick response, standard spray
sprinklers.

 

Could anyone tell me if my assumptions are right?

 

TAYLOR SCHUMACHER, CET

Security Fire Sprinkler 

P  320.656.0847  |  F  320.656.0312  |  E  tay...@sfsprinkler.com
<mailto:tay...@sfsprinkler.com> 

 

 


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Re: Combustible Concealed Space-Area Reduction

[Travis Mack, SET]

I think he is saying that his concealed space is >36" in depth.  If so, 
then specially listed are not mandated.


If so, I have always used the QR reduction for 10' ceiling height in 
those spaces provided it is a wet system.  I have had some AHJs require 
I go to the floor to get my deck height.  So, if you were 14' floor to 
floor with a 10' ceiling and 24" open web floor trusses, then you could 
use QR SSU to protect.  A conservative approach would be to go with 14' 
for your QR reduction point.


Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:tm...@mfpdesign.com

http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign
LinkedIn: https://www.linkedin.com/in/travismack

On 10/13/2016 2:26 PM, Cliff Whitfield wrote:


Taylor,

I believe you will need to use Concealed Space Sprinklers for that 
area and will need to calc based on the manf data sheet.


Cliff Whitfield, SET

President

Fire Design, Inc.

*From:* Sprinklerforum 
[mailto:sprinklerforum-boun...@lists.firesprinkler.org] *On Behalf Of 
*Taylor Schumacher

*Sent:* Thursday, October 13, 2016 4:55 PM
*To:* sprinklerforum@lists.firesprinkler.org
*Subject:* Combustible Concealed Space-Area Reduction

Good afternoon forum,

I’m looking to apply the remote area reduction per 11.2.3.2.3.1 in 
NFPA 13 2010 to a floor truss space over 36” using quick response, 
standard spray sprinklers.


Could anyone tell me if my assumptions are right?

*TAYLOR SCHUMACHER, CET*

Security Fire Sprinkler

*P *320.656.0847 | *F * 320.656.0312  | *E *tay...@sfsprinkler.com 






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RE: Combustible Concealed Space-Area Reduction

[Cliff Whitfield]

Taylor,

 

I believe you will need to use Concealed Space Sprinklers for that area and
will need to calc based on the manf data sheet.

 

Cliff Whitfield, SET

President

Fire Design, Inc.

 

 

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
On Behalf Of Taylor Schumacher
Sent: Thursday, October 13, 2016 4:55 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Combustible Concealed Space-Area Reduction

 

Good afternoon forum,

 

I'm looking to apply the remote area reduction per 11.2.3.2.3.1 in NFPA 13
2010 to a floor truss space over 36" using quick response, standard spray
sprinklers.

 

Could anyone tell me if my assumptions are right?

 

TAYLOR SCHUMACHER, CET

Security Fire Sprinkler 

P  320.656.0847  |  F  320.656.0312  |  E  tay...@sfsprinkler.com
 

 



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