caveat |ˈkavēˌät; ˈkäv-|
noun
a warning or proviso of specific stipulations, conditions, or limitations.
• Law a notice, esp. in a probate, that certain actions may not be
taken without informing the person who gave the notice.
ORIGIN mid 16th cent.: from Latin, literally ‘let a person beware.’

On Fri, Nov 5, 2010 at 12:39 PM, Brad Casterline
<[email protected]> wrote:
> Rich, thanks for pointing out the caveat. The last warehouse I got to do was
> in Bedrock, near Fred and Wilma's place. I see auto vents are allowed under
> certain conditions-- I guess we use the same curves as no vents though. Is
> that what caveat means-- I have been meaning to look that one up?
> Brad
> Ps- it will take some time to read the report- DUH! Who knew you had to
> download a pdf 1st?- I'm glad I had hard copy before I would have felt
> ungreen to have it.
>
> -----Original Message-----
> From: Richardson, R [mailto:[email protected]]
> Sent: Friday, November 05, 2010 12:36 PM
> To: [email protected]
> Subject: RE: smoke vents for retrofit
>
> Seattle has many warehouse buildings legally built that have no vents and in
> many cases no sprinklers.  We are allowing such buildings to continue w/o
> vents when they have a "good" sprinkler system, particularly if a previously
> unsprinklered building was being sprinklered. This is based on the FM test
> showing a negative affect on sprinklers in storage occupancies with vents
> opening.
>
> I have not had time to read the NIST report you reference in detail, but on
> the surface that report does not seem to dispute the FM analysis at all.
> That reports seemed to have a different purpose than the FM test, I suspect
> the purpose of this report was to sell the "value" of vents to code
> committees, whereas FM simply wants to have effective sprinkler systems.
>
> I assume you have seen the caveat in the NFPA 13 storage section where it
> says that these criteria are based on no vents in the building.
>
> Rich Richardson
> Seattle Fire Department
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Chris Cahill
> Sent: Friday, November 05, 2010 09:36
> To: [email protected]
> Subject: RE: smoke vents for retrofit
>
> I'd say it depends.  If it was in full compliance with the Code before you
> add sprinklers I'd say no the sprinklers are above and beyond the MINIMUM of
> the Code.
>
> If it was not in compliance then maybe.  I'd say it needs to be brought up
> to Code in all respects.  Some scenarios require both sprinklers and smoke
> control, others just sprinklers.
>
> Look in Chapter 1 for applicability that I believe is what is the guiding
> Code section.  If it is existing HPS and doesn't have smoke control I'd be
> first guessing it was not in compliance when built (or changed to HPS).
>
> Chris Cahill
>
>
> -----Original Message-----
> From: Matt Grise [mailto:[email protected]]
> Sent: Thursday, November 04, 2010 2:53 PM
> To: '[email protected]'
> Subject: smoke vents for retrofit
>
> If an existing building is retrofit with an area/density system to protect
> high piled storage, does it need to have smoke vents and draft curtains
> added as described in the IFC, or is that just new construction?
>
> I looked around in the IFC/IBC/IEBC books, but I could not find anything
> that would exempt the vents and curtains. Does anyone recall any way to
> avoid them (other than ESFR)?
>
> Matt Grisé PE*, LEED AP
> Sales Engineer
> Alliance Fire Protection
> *Licensed in KS & MO
>
> 913.888.0647 ph
> 913.888.0618 f
> 913.927.0222 cell
> www. AFPsprink.com
>
>
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-- 
Ron Greenman
Instructor
Fire Protection Engineering Technology
Bates Technical College
1101 So. Yakima Ave.
Tacoma, WA 98405

[email protected]

http://www.bates.ctc.edu/fireprotection/

253.680.7346
253.576.9700 (cell)

Member:
AFSA, SFPE, ASCET, NFPA, NFSA, AFAA, ASEE, NIBS, WSAFM, WFC

They are happy men whose natures sort with their vocations. -Francis
Bacon, essayist, philosopher, and statesman (1561-1626)
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