Is this just for curiosity, or do you have a project using pre-1969 version of 
the code somehow?

-----Original Message-----
From: Sprinklerforum [] On 
Behalf Of
Sent: Friday, April 6, 2018 10:15 AM
Subject: [EXTERNAL] NFPA 13 prior to 1969 edition

Does anyone have access to 13 where the water curtain detail still required 
open sprinklers (deluge)?
I'm curious if the draft stop is required.
Besides smoke protecting the opening it occurred to me the other day the draft 
stop would help form a 'wall of water' by blocking ~9 gpm, making it drop 
straight down, and thereby providing a density of greater than 1 gpm/sf around 
the perimiter.


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