Sprinkler Design Criteria for Stacked Hay Bales?

11/6/2019

Does anyone have any experience with determining an appropriate design criteria for protecting rectangular hay bales stacked to about 20 ft. in a 25-30 ft. metal purlin building?

Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe

6 Comments

David J. Branson

11/6/2019 10:25:49 am

We have dealt with similar high piled storage of baled cotton motes, compressed cotton bales, wood, etc. The required sprinkler system measures depend heavily on AHJ, codes & ordinances, warehouse location & configuration, pile spacing and other criteria.

Paul Pinigis

11/6/2019 10:27:27 am

Well, they would be a class III commodity in a solid pile to 20 ft. , so table 22.2 in the 2019 edition gives you some options.

Jessica L.

11/6/2019 10:28:26 am

About 10 years ago I designed a system for a hay barn. I discussed it with NFPA because there weren't any design guidelines for that storage commodity. They "unofficially" advised me to use Ordinary Hazard Group 2 density. The building was standalone, unoccupied, and used only for hay bale storage.
Sorry, I know this is not the concrete information you're looking for...

Kevin Pelton link

11/6/2019 10:41:01 am

NFPA 13, A 5.3.2, Ordinary Hazard Group 2, Barns & Stables,

Jesse Cecil link

11/6/2019 11:04:16 am

With 20-ft high storage it would not be OH2. OH2 is for Class I-III to no higher than 12-ft, and Class IV no higher than 10-ft. I think Class III is your driving commodity, so finding the design curve for protection of high-piled Class II Commodity will govern. See 2016 NFPA 13 Chapter 14.2 for a design curve, and remember your combined hose allowance is 500-gpm

Jesse Cecil link

11/6/2019 11:47:59 am

Design curve for Class III Commodity. Sorry. silly keyboard

Leave a Reply.

Home
Our Cause

The Blog
The Forum

PE Exam Prep
The Toolkit
MeyerFire University

Pricing
Login
Support
Contact Us

MeyerFire.com is a startup community built to help fire protection professionals shine.
Our goal is to improve fire protection practices worldwide. We promote the industry by creating helpful tools and resources, and by bringing together industry professionals to share their expertise.

MeyerFire, LLC is a NICET Recognized Training Provider and International Code Council Preferred Education Provider.
All text, images, and media Copyright © 2016-2024 MeyerFire, LLC

We respect your privacy and personal data. See our Privacy Policy and Terms of Service. The views, opinions, and information found on this site represent solely the author and do not represent the opinions of any other party, nor does the presented material assume responsibility for its use. Fire protection and life safety systems constitute a critical component for public health and safety and you should consult with a licensed professional for proper design and code adherence.

Discussions are solely for the purpose of peer review and the exchange of ideas. All comments are reviewed. Comments which do not contribute, are not relevant, are spam, or are disrespectful in nature may be removed. Information presented and opinions expressed should not be relied upon as a replacement for consulting services. Some (not all) outbound links on this website, such as Amazon links, are affiliate-based where we receive a small commission for orders placed elsewhere.

Sprinkler Design Criteria for Stacked Hay Bales?

Leave a Reply.

ALL-ACCESS

SUBSCRIBE

COMMUNITY

YOUR POST

PE EXAM

FILTERS

ARCHIVES

PE PREP SERIES