indyarchyguy
Registered User
I am currently reviewing a project in Indiana (2012 IBC with amendments).
The building is a one-story church facility. Originally filed as Type II-A. Owner wants to refile as II-B...and construction has started (sigh). Three occupancies...A-3, B and E. It was already planned to provided 1-hour separation between each occupancy per the Architect. In doing my calculations, I can't get the allowable areas for all to work per Equations 5-1, 5-2 and Section 506.3. I have calculated the ratios of the actual area / allowable area and my ratio always comes up over 1.0. Someone else mentioned to me I should just take the fact that with a full sprinkler system and one-story, in Indiana you are allowed to have UNLIMITED area for a B or E occupancy with 60-foot clearance at the perimeter of the area (see attached file). In my opinion, this is not valid as the occupancy itself is not technically open at the perimeter since the adjoining occupancies are at least on one side of the adjacent occupancies.
If I do follow that thought process, my B and E occupancies are covered by Unlimited and my A-3 is under the allowable area, therefore I am fine. Thoughts? Other than that Indiana is slightly nuts? Also, we struck footnote "d" under Table 601 which would have allowed the sprinkler system to substitute for a 1-hour fire rating.
The building is a one-story church facility. Originally filed as Type II-A. Owner wants to refile as II-B...and construction has started (sigh). Three occupancies...A-3, B and E. It was already planned to provided 1-hour separation between each occupancy per the Architect. In doing my calculations, I can't get the allowable areas for all to work per Equations 5-1, 5-2 and Section 506.3. I have calculated the ratios of the actual area / allowable area and my ratio always comes up over 1.0. Someone else mentioned to me I should just take the fact that with a full sprinkler system and one-story, in Indiana you are allowed to have UNLIMITED area for a B or E occupancy with 60-foot clearance at the perimeter of the area (see attached file). In my opinion, this is not valid as the occupancy itself is not technically open at the perimeter since the adjoining occupancies are at least on one side of the adjacent occupancies.
If I do follow that thought process, my B and E occupancies are covered by Unlimited and my A-3 is under the allowable area, therefore I am fine. Thoughts? Other than that Indiana is slightly nuts? Also, we struck footnote "d" under Table 601 which would have allowed the sprinkler system to substitute for a 1-hour fire rating.