Tim Mailloux
Registered User
I'm looking at existing 2 story building, largest floor is 58,00SF, A2 occupancy, type 2A construction and no sprinklers. We are renovating about 75% of the building and changing the occupancy classification of the renovated portion of the building from A2 to A3. As a cost savings measure the client does not want to install sprinklers in the unrenovated A2 portion of the building, which is allowed per IEBC section 1012.1.1.2 & 1012.2.1 as long as we separate the two occupancies with a fire barrier, which will be provided.
As part of the scope we are also demoing a small 3000SF wing at the rear of the building and adding an addition of 2500SF to the front of the building, the overall building area is decreasing. Without the installation of a new full building sprinkler system the existing building is much larger than what is allowed per chapter 5 of the IBC for new construction. Sections 1101.2 & 1102.2 both state that the area of an existing building and addition must comply with the area limitations of that for a new building per chapter 5 of the IBC. My gut is telling me that we cannot add this addition without providing a new sprinkler system through the entire existing building (renovated and unrenovated area). But seeing how we are actually making the overall building smaller do you see a case to not have to provide sprinklers in the unrenovated A2 occupancy?
As part of the scope we are also demoing a small 3000SF wing at the rear of the building and adding an addition of 2500SF to the front of the building, the overall building area is decreasing. Without the installation of a new full building sprinkler system the existing building is much larger than what is allowed per chapter 5 of the IBC for new construction. Sections 1101.2 & 1102.2 both state that the area of an existing building and addition must comply with the area limitations of that for a new building per chapter 5 of the IBC. My gut is telling me that we cannot add this addition without providing a new sprinkler system through the entire existing building (renovated and unrenovated area). But seeing how we are actually making the overall building smaller do you see a case to not have to provide sprinklers in the unrenovated A2 occupancy?