Chain link fence does not support building weight.

Ryan L. Hinson, PE*, SET
Fire Protection Engineering Group
Burns & McDonnell
Direct: 952-656-3662
Mobile: 320-250-5404
*Registered in: MN

-----Original Message-----
From: Sprinklerforum [mailto:[email protected]] On 
Behalf Of IPA
Sent: Tuesday, July 08, 2014 1:41 PM
To: [email protected]
Subject: Re: Chain Link Partitions in Ord Group II

Thanks - that is what I was looking for. However, now that I see the wording I 
know this reviewer will dispute the chain link being a 'structural member' - 
righly so, more than likely. I think I will just re-space accordingly and avoid 
the headache.



On Tue, Jul 8, 2014 at 10:16 AM, Todd - Work <[email protected]> wrote:

> If you go into the definitions section, under Unobstructed 
> Construction, it references structural members with openings "at least 
> 70% of the cross section area" as being considered unobstructed. This 
> same magical 70% also shows up in requirements for mesh in privacy 
> curtains. I think this could be extrapolated to include chain link, 
> provided there is over 70% openings in the cross sectional area.
>
> Todd G Williams, PE
> Fire Protection Design/Consulting
> Stonington, CT
> www.fpdc.com
> 860-535-2080 (ofc)
>
> > On Jul 8, 2014, at 12:27 PM, "Steve Leyton" 
> > <[email protected]>
> wrote:
> >
> > Got it, we see this in condo communities all the time.  
> > Mini-storage, personal tenant storage ... it's all pretty much the 
> > same compartmentalization mentality.  IMHO the chain link elements 
> > are not obstructions.
> >
> > SL
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: Sprinklerforum
> > [mailto:[email protected]] On Behalf Of 
> > IPA
> > Sent: Tuesday, July 08, 2014 9:24 AM
> > To: [email protected]
> > Subject: Re: Chain Link Partitions in Ord Group II
> >
> > This is a large storage area adjacent to a locker room. The storage 
> > room is divided up into little compartments with chain link 'security mesh'
> > while the locker rooms have certain areas that are solid framed up 
> > to 2 ft from the ceiling which is chain link from there on up. I had 
> > it originally layed out as if they were not obstructions but now 
> > that I'm starting to finalize everything I'm starting to second 
> > guess myself and would like to have backup in case plan review questions it.
> >
> >
> >
> > On Tue, Jul 8, 2014 at 9:19 AM, Steve Leyton 
> > <[email protected]>
> > wrote:
> >
> >> I'd take a common sense approach to this.  If sprinklers were 
> >> jammed up against this type of divider, they could be obstructed.  
> >> But if storage height and clearance-to-deflector limits are 
> >> observed, these
> > don't
> >> present an obstruction.  Are you looking at a mini-storage?   Over the
> >> years, have done many of these throughout the Southwest and the use 
> >> of
> >
> >> chain link - either full height or just the top 2 feet of framed 
> >> partitions - has been the go-to means of allowing us to stretch out 
> >> sprinkler spacing and not end up with mean coverage of 50-75 sq. ft.
> >> per sprinkler.
> >>
> >> Steve Leyton
> >>
> >>
> >>
> >>
> >>
> >>
> >> -----Original Message-----
> >> From: Sprinklerforum
> >> [mailto:[email protected]] On Behalf 
> >> Of IPA
> >> Sent: Tuesday, July 08, 2014 9:16 AM
> >> To: [email protected]
> >> Subject: Chain Link Partitions in Ord Group II
> >>
> >> Would chain link 'partitions' (full height to ceiling) be 
> >> considered an obstruction for a storage area in an ordinary group 2 
> >> occupancy?
> >> I'm having a hard time coming up with anything for this and the 
> >> closest I can think of is the privacy curtain requirement for light
> > hazard.
> >>
> >> Thanks,
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