[Sprinklerforum] Re: Supplemental Calculations Under Obstructions

Mike Stewart Tue, 31 Dec 2024 10:11:54 -0800

What type of heads are you using under the platform and duct? Are they standard heads (standard spray or extended coverage) or ESFR?

Mike Stewart

Dog Walker

On Dec 31, 2024, at 10:45 AM, Fpdcdesign <[email protected]> wrote:

Difficult to answer with just that information. The insurance company or project engineer may have a say on those.

Todd Williams
Fire Protection Design/Consulting
Stonington, CT
860-608-4559

On Dec 31, 2024 at 10:31 AM, <Jackie Ward> wrote:

My Design Area is 1200 SqFt. – Two Questions

I’m working out of

I have mechanical platforms (600 SqFt each) with duct exceeding 48” extending from the platforms. Bottom of Duct is similar elevation to mechanical platforms.

Are supplemental design area beneath obstructions, separate from overhead design area, to be limited to the platform area, or to include additional under duct sprinklers to achieve design area of 1200 SqFt?
Where I have duct only, how many sprinklers beneath duct are required to be calculated?

Sincerely;

Jackie "JW" Ward; SET

1-405-240-7076

[email protected]

NICET IV Cert. No. 104187

Victaulic Vortex Integrator

Firetrol Protection Systems

108 NW 132nd Street; Oklahoma City, OK 73114

405-752-2330 Ext. 10230 Fax:405-752-2297

License No: AR-FSS-162, LA-F415, OK-863 & 302, TX - ECR-1751432, ACR-1751168, SCR-G-0292

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https://www.minimax-mxone.com/ Victaulic Vortex

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[Sprinklerforum] Re: Supplemental Calculations Under Obstructions

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