I believe that rule came to be in the 1987 edition. Prior to that, it was not 
prohibited.  
 
 
 
 Todd G Williams, PE 
Fire Protection Design/Consulting
 
Stonington, CT
 
860-535-2080 (tel:860-535-2080)  (ofc)
 
860-554-7054 (tel:860-554-7054)     (fax)
 
860-608-4559 (tel:860-608-4559)  (cell)
 
 
 
 

 
 
>  
> On Sep 7, 2022 at 5:30 PM,  <James Crawford (mailto:[email protected])> 
>  wrote:
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> Looking for input
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> Just did a site review on a 1984 building and they have 2 gridded dry systems 
> in one of their storage canopies.
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> 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.
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> Thank You
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> James Crawford
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>  
>
> Phaser Fire Protection Ltd.
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>  
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> Phone 604-888-0318
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> Cel: 604-790-0938
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>  
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> Email  [email protected] (mailto:[email protected])
>
>  
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> Web:  www.phaserfire.ca (http://www.phaserfire.ca)
>
>  
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>  
>  _________________________________________________________ SprinklerForum 
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