Flame Off shows specs to provide 2 hour protection on the metal bar joists but only one hour on the T&G. So i need 1 more hour to add to the wood. My initial thought was to got with a 3/4 inch layer of guy-crete on top of the wood. ( it seems the code official is willing to accept a calculated...
Please Help! I need a solution to this problem. I need to create a 2 hour fire separation between a lower level and the space above. The current floor / ceiling assembly is 3/4" T&G over bar joists. Bar joists measure 9.5" tall, x 3.25" wide on 16" centers... The owner's goal is create the fire...
