Exposed Hazard

[Meadowbend99]

Hi,

I'm using 2012 IFC. I'm filling out a fire flow calculator and have a question on the what is considered a exposed hazard.

I am doing a change of occupancy on one structure. It is 23' away from another building (so within 50'), however the two buildings will be connected with a breezeway and both buildings are fully sprinklered. The building I'm permitting is a Type V-B and the other building is a II-B.

Would the exposed hazard be within or more than 50' away (essentially does the Type II-B, fully sprinklered building constitute a hazard)

 

[TheCommish]

You could consider combing both buildings together and have them meet the requirements for a single building of the size you have?

 

[cda]

can you give a section reference for:


considered a exposed hazard

 

[TheCommish]

2015 IBC

 

[Builder Bob]

Sounds like the fire flow calculator is based on the ISO fire flow requirements - the ISO has specific guidelines for exposures and % reduction allowed for distance/ type of exterior coverings/rating/etc.

 

[Insurance Engineer]

If ISO this may help

https://www.isomitigation.com/siteassets/downloads/guide-determinerequiredfireflow.pdf