I always thought that things would be easier if all regulations were
written in Haiku
Office, Light Hazard
As Home, Attic and Health Care
5.1, Curve 1
At 10:46 AM 9/5/2007, you wrote:
They are manual, for heat removal only. There is no A/C in the main part of
the building.
Bobby Gillett
Project Manager
[EMAIL PROTECTED]
(731)-424-0130
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, September 05, 2007 9:41 AM
To: [email protected]
Subject: RE: ESFR heads at airflow openings
Good point and another issue to contend with. The fans themselves. If
they are thermostatically controlled then they will activate in a fire
scenario. Anybody thought about their control? Definitely NOT a
desired action.
And I agree that the FM data is very valuable, not saying that it is
not. Just saying that when not directed to follow it, one should be
compensated for the additional tasks and materials needed when an owner
changes their mind, and that some people are ignorant of the fact that
FM is not part of the Codes. It's like that part of NFPA that says you
have to paint sprinkler pipe red. Still haven't found it but have been
told many times that it's supposed to be a code requirement.
Craig L. Prahl, CET
Fire Protection Group
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
PO Box 491, Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[EMAIL PROTECTED]
http://www.lg.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff
Hewitt
Sent: Wednesday, September 05, 2007 10:28 AM
To: [email protected]
Subject: Re: ESFR heads at airflow openings
I agree with George.
While NFPA 13 appears to be silent on this, one should not overlook NFPA
13,
2007
12.1.1 Roof Vents and Draft Curtains
"sprinkler protection criteria are based on the assumption that roof
vents and draft curtains are not being used".
I think it would be folly to overlook this. NFPA 13 does not address
it, but FM does. NFPA 13 excludes it. You have been made aware that FM
addresses it. If you choose to ignore FM then you could be liable
later.
Jeff Hewitt, PE, SET, MSFPE
Bi-State Fire Protection Corporation
241 Hughes Lane
St. Charles, MO 63301
636-946-0011
636-946-5172 (FAX)
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----- Original Message -----
From: "George Church" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, September 05, 2007 9:15 AM
Subject: RE: ESFR heads at airflow openings
> While I realize the CONTRACTUAL differences -and cost impact that
> should be, from what was presented here, recoverable as a change
> (increase) in scope post-bid, I certainly think that FM's requirements
> on ESFR are probably the most accurate, being based on test data,
> field experience, and they are not muddied by the process required of
> the minimum concensus standard that can change pure engineering data
> and recommendations based upon it.
>
> Certainly there is a diffference between code and FM Global
> recommendations, but when it comes to ESFR, I think FM wrote the book
> and I'd be careful when deviating from their bible. Sure, cost impacts
> need to be included, but an intelligent Owner should agree to the
> extras, or at least consider them.
>
> George Church
> Rowe Sprinkler
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, September 05, 2007 10:02 AM
> To: [email protected]
> Subject: RE: ESFR heads at airflow openings
>
> Ok, so do you have roof or sidewall exhaust fans? Any intake plenums
> with diffusers, or just an open intake? What are the sizes of the fan
> intakes?
>
> If the fans are roof mounted is the opening level with the underside
> of the roof (no plenum), and what relative distance is there
> (vertically) between the sprinkler and intake?
>
>
>
> Some AHJ's and others think that meeting FM is required just like it's
> another Code.
>
>
> Craig L. Prahl, CET
> Fire Protection Group
> Mechanical Department
> CH2MHILL
> Lockwood Greene
> 1500 International Drive
> PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax -
> 864.599.8439 [EMAIL PROTECTED] http://www.lg.com
>
>
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
860.535.2080
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