Thanks everyone.


John Irwin

DynaFire Inc. – “*Same Day – Next Day*”



*From:* Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> *On
Behalf Of *Steve Leyton
*Sent:* Thursday, May 17, 2018 11:36 AM
*To:* sprinklerforum@lists.firesprinkler.org
*Subject:* RE: Misc Rack Storage



What Craig and Travis said.  From a performance perspective, I always liked
the “double density” approach where you prove the required density for the
hazard that mostly characterizes the use and then a smaller hot spot for
the more hazardous aberration.  So EH2 per Chapter 11, and also a .6/900
sq. ft. or something like that.



SL



*From:* Sprinklerforum [
mailto:sprinklerforum-boun...@lists.firesprinkler.org
<sprinklerforum-boun...@lists.firesprinkler.org>] *On Behalf Of *MFP
Design, LLC
*Sent:* Thursday, May 17, 2018 8:29 AM
*To:* sprinklerforum@lists.firesprinkler.org
*Subject:* RE: Misc Rack Storage



*When you have mixed criteria areas, you need to extend the higher density
into the lower density area for 15’.  Reference NFPA 13: 12.3 for that
requirement.  Also, don’t forget the issue of complying with 23.4.4.1.1.4.*



[image: MFP_logo_F]

Travis Mack, SET

MFP Design, LLC

3356 E Vallejo Ct

Gilbert, AZ 85298

480-505-9271

fax: 866-430-6107

email:tm...@mfpdesign.com



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*“**The bitterness of poor quality remains long after the sweetness of low
price is forgotten.”*



*From:* Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> *On
Behalf Of *John Irwin
*Sent:* Thursday, May 17, 2018 8:23 AM
*To:* sprinklerforum@lists.firesprinkler.org
*Subject:* RE: Misc Rack Storage



Regardless of the trailers, do I need to provide .6/2000 for the racks? If
so, do I need to do that for the entire 5,000 sqft area? Seems excessive.







John Irwin

DynaFire Inc. – “*Same Day – Next Day*”



*From:* Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> *On
Behalf Of *Steve Leyton
*Sent:* Thursday, May 17, 2018 11:19 AM
*To:* sprinklerforum@lists.firesprinkler.org
*Subject:* RE: Misc Rack Storage



I tend to agree – trailers potentially shielding fire load within from
sprinklers above (5.4.2).



SL



*From:* Sprinklerforum [
mailto:sprinklerforum-boun...@lists.firesprinkler.org
<sprinklerforum-boun...@lists.firesprinkler.org>] *On Behalf Of *Fpdcdesign
*Sent:* Thursday, May 17, 2018 7:06 AM
*To:* Sprinklerforum
*Subject:* Re: Misc Rack Storage



Wouldn’t the trailer storage bring it up to EH2?


Todd G Williams, PE

Fire Protection Design/Consulting

Stonington, CT

860-535-2080 (ofc)

860-553-3553 (fax)

860-608-4559 (cell)



On May 17, 2018 at 9:47 AM, <John Irwin <john.ir...@dynafire.com>> wrote:

Here’s the situation … I have a 5,000 sqft, (currently) ordinary hazard
mixed use space. The new tenant intends to store two emergency disaster
management trailers in this space. However, along two walls, they want to
put a 3-teir rack with storage up to 20’ in height. TOS in the center of
the unit is 23-9.



The racks will contain a mix of group A plastic, emergency supplies in
plastic totes, with lids, on non-combustible pallets.



Do I really have to upgrade this entire space from OH II to .6/2000?



Do I tell them they should just not store over 12’?



John Irwin

Fire Sprinkler Specialist

DynaFire, Inc. – “*Same Day – Next Day*”

727-282-9243 – Cell



*“A customer is the most important visitor on our premises. He is not
dependent on us. We are dependent on him. He is not an interruption on our
work. He is the purpose of it. He is not an outsider on our business. He is
a part of it. We are not doing him a favour by serving him. He is doing us
a favour by giving us an opportunity to do so.”*





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