Vertical Dimension for Closely-Spaced Sprinkler?

4/7/2020

I am an architect and appreciate the information being shared here, very clear and helpful. We are working on an atrium and working in accordance the Closely-Spaced Sprinklers (for Atrium Enclosures).

In the details for the closely spaced sprinklers there is a horizontal distance of 4-12" from the glazing to the sprinkler - is there a separate vertical dimension that must be met? We have glass that is 11'-4" in an open/exposed ceiling that is 13'-5" high (at boundary of atrium).

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

6 Comments

Wayne Ammons

4/7/2020 07:50:59 am

Is the intended use of the closely spaced sprinklers to provide glazing protection to achieve a fire rating? Can you reference what code and section the details you are looking at are from?

Keith Heckler

4/7/2020 10:12:18 am

Contact me directly and I can share with you photographic arrangements found through North America to help you see other installations. [email protected]

Greg

4/7/2020 10:31:47 am

Hi, I am a MEP engineer. Appreciated if you could enlighten me if NFPA and FM Global asking for standby fire pump to be an engine-driven pump. From my reading of the standards, I couldn't find the statement. However, there are many senior staffs and clients keep telling me that if the fire protection system to comply with NFPA or FM Global, then an engine-driven pump is required for standby.

Hope everyone is well and healthy during this period.

sean

4/7/2020 04:16:37 pm

Not counting insurance requirements NFPA 20 talks about 2 different reasons to require a pump to have a secondary power source (day tank w/ refill contract, ATS and generator, etc.).

Those are if the power supply is deemed not reliable or if the pumping capacity is greater than their apparatus. ie if your pumper can only supply up to the 8th floor but its 10 stories tall then you need to ensure that the pump will run.

If you talking about a second fire pump then there is some poorly worded language for extra tall buildings (420 ft) to have redundancy, but they miss a few issues they only directly address the additional water supply.

I hope that helps if not please reply.

Mike

4/7/2020 10:36:05 am

Tyco and Reliable have window sprinklers. It's best to check their data sheets.

sean

4/7/2020 04:17:51 pm

the MFG requirements and the ES report cover both. Make sure you read both as they sometimes are on different revisions.

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.

Vertical Dimension for Closely-Spaced Sprinkler?

Leave a Reply.

ALL-ACCESS

SUBSCRIBE

COMMUNITY

YOUR POST

PE EXAM

FILTERS

ARCHIVES

PE PREP SERIES