I am trying to determine how close I can place a modular building (portable trailer) to an existing structure. The existing building consists of the following: 8,900 SF - Type 5A - I-2 / B occupancy with fire sprinklers. The building has an existing exterior door that will remain. The existing exterior walls are 1hr construction. The existing building will be 3,600 sf – Type 5B – B occupancy with fire sprinklers.
Per CBC 2010 Section 705.3 I can consider the buildings as one building. If this is the case, do I still need a separation between the I-2 use and the new modular building? Most likely I will plan on keeping the buildings at least 5’ away from each other due to an existing door. If not, can I consider this building a Nonseperated Occupancy per CBC 508.3?
Thanks for your help! Let me know if there is any other information that you need.
NCARB, LEED AP