13r and taking the increases per ibc

[SpcFoor]

I have a project that consists of one three story apartment building. On the building code sheet it looks as though they took some increases for a sprinklered building. My question is if they took the allowences can you still do a 13R system or does it have to be a full 13?

 

[cdafd]

See if this answers your question

http://www.eng-tips.com/viewthread.cfm?qid=331744

 

[TravisMack]

Follow the trail in the IBC. If you have an area increase, then IBC refers you to section 903.3.1.1. This section references a 13 system. If you are referenced to 903.3.1.2 then you can do a 13R system.

In order for the architect to take an area increase by use of the fire sprinkler system, you get sent to 903.3.1.1. Therefore, you go full 13.

Travis Mack
MFP Design, LLC

http://www.mfpdesign.com