Brett: Actually back in late 70’s and likely early 80’s there was not a prohibition on it like there is now. So, since it was not prohibited, that would mean it was allowed.
Please rate our customer service<https://survey.medallia.com/?emailsignature&fc=3539&bg=Fire%20and%20Fabrication> Travis Mack, RME-G, COC, SET Senior Engineering Manager MFP Design 480-505-9271 ext. 700 C: 480-272-2471 [email protected]<mailto:[email protected]> [email protected] www.mfpdesign.com<http://www.mfpdesign.com> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.hightail.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> From: Brett Peters <[email protected]> Sent: Wednesday, September 7, 2022 2:46 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Gridded Dry systems It’s never been allowed, I have however seen an engineer who didn’t know better design a cold attic gridded to just 1500sqft. My guess would be this is a similar situation, engineer did understand the requirements for dry systems and designed like a regular wet system. On Wed, Sep 7, 2022 at 3:29 PM James Crawford <[email protected]<mailto:[email protected]>> wrote: Looking for input Just did a site review on a 1984 building and they have 2 gridded dry systems in one of their storage canopies. Were they ever allowed to do gridded dry system, I know the NFPA 313 (1989) says no gridded dry system but it is not in the 1978 edition. Thank You James Crawford Phaser Fire Protection Ltd. Phone 604-888-0318 Cel: 604-790-0938 Email [email protected]<mailto:[email protected]> Web: www.phaserfire.ca<http://www.phaserfire.ca> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org> To unsubscribe send an email to [email protected]<mailto:[email protected]> -- Thank You Brett Peters PFPS Ltd (780) 777 0568 Sent From My iPhone
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