GEe
REGISTERED
This pertains to a small, three-story building. The proposal is to convert the upper two stories into separate R-3 units (that is, one dwelling unit per level). To do this we are doing a performance evaluation per chapter 13 of the IEBC.
We can attain the necessary points with no sprinklers. But, if no sprinklers, the question is whether we need two exits per dwelling unit.
For exiting, IEBC 1301.6.11 requires compliance with IBC 1006. That section (for example IBC 1006.3.3) allows a single exit for R-3 occupancies, but this normally assumes that sprinklers are provided. So, for example, IBC Table 1006.2.1, categorically indicates 'NP' for unsprinklered R-3 occupancies.
We would argue that IEBC chapter 13 compensates for the assumption of sprinklers -- in particular, there is a big 12 point reduction where sprinklers are required but not provided in an R occupancy.
So far the AHJ is unconvinced. Any experience with this?
We can attain the necessary points with no sprinklers. But, if no sprinklers, the question is whether we need two exits per dwelling unit.
For exiting, IEBC 1301.6.11 requires compliance with IBC 1006. That section (for example IBC 1006.3.3) allows a single exit for R-3 occupancies, but this normally assumes that sprinklers are provided. So, for example, IBC Table 1006.2.1, categorically indicates 'NP' for unsprinklered R-3 occupancies.
We would argue that IEBC chapter 13 compensates for the assumption of sprinklers -- in particular, there is a big 12 point reduction where sprinklers are required but not provided in an R occupancy.
So far the AHJ is unconvinced. Any experience with this?