Depending upon its situation and function within a building, a wall may be expected to fulfill.
What Makes A 2 Hour Fire Rated Wall. Make sure the drywall is approved. I have an 8 cmu party wall with each unit being 21' wide.
Fire Rated Wall Assemblies in Type-III Wood-Framed Jobs ... from flameproof.com
More than one hour is achieved by adding additional layers of boards to extend protection or by adding other elements to the system to make it more robust. Require an l rating with the approved firestop system. If the ceiling can be covered then that could be part of the protection.
Make sure that when you hang the first sheet of drywall that you take, mud and then put the other piece up.
I get how to create a filter, but its not doing what i'd think it would (select everything called '2 hour' under the fire rated parameter.) Make sure the drywall is approved. Ref 2012 irc table r302.1(1). Does it means the fire walls of rating less than 2 hrs (eg 1hr), shall not be provided with fire dampers irrespective of the hazard occupancy?
