Fire rating ??? for addition

[rnorth]

Hello all,
I am preparing plans for a client who is doing a 24x35 addition onto an exisitng truck garage. he wants to use a pole buildingsince the existing build. ia a pole structure. the building inspector told him the common wall must be fire rated but would not spec what rating..1, 2 or 3.
does anyone have any recommendations for how many layers of fire rock would give a 2 hour rating? the addition will be a storage area with heaters. the job is in upstate NY. thanks for any help.

 

[dik]

You have to look at the code and find out what separation is required between various occupancies.

Dik

 

[henri2]

If the IBC-03 governs, then use chapter 3 to determine occupancies and read Section 302.3.2 for required fire rating of OSW.

Check chapter 7 (Fire Resistance-Rated-Construction) to see if what you propose to do will give you the required fire rating. UL also has pertinent info in this regard.