Mixed Occupancy s1/B

[DuaneW]

I am looking at a new plan and this company wants to build a building that will be a mixed occupancy. They say it will be S/1- B occupancy. The S1 is going to have 6000 Sq Foot area and the B part is going to be 4000 Sq foot with 4000 Sq Foot 2nd Level. I when I look at it the Fire area is going to be a total of 14,000 Sq Foot.
The B/O want me to provide argument, that they need a sprinkler. Oh the kicker is there is no fire wall between the two parts. He is in the mindset he wants to set them at S-2 / B that way they would need a min of 2 hour wall instead of a 3 hour wall. The problem that I am having is ICC does not deal much with Class B for offices.
I am looking to see what other people would think about this.

 

[steveray]

I think S1 is 12000ft fire area or they would need to separate or sprinkler....

 

[cda]

They ought to get rid of S-2!!! code change code change

Yea label it a S-2 and you walk in and the place is full of tires, or similar burnable stuff.

 

[DuaneW]

I forgot when doing a building like this you don't count the B and you have to build to the S-1. You would only count the B in the Fire load area. And under S-1 you would have to sprinkler no mater what they did. There only option, not to add a sprinkler would to move to S-2 and make sure there is no over night parking in the building, and put in a 2 hour fire wall.

 

[DuaneW]

They ought to get rid of S-2!!! code change code change

Yea label it a S-2 and you walk in and the place is full of tires, or similar burnable stuff.

This building is going to be used to repair windmill towers.

 

[cda]

This building is going to be used to repair windmill towers.

So the entire thing is an s??

I think someone is “ Don Quixote “ the code book

 

[cda]

If they meet the code without a fire sprinkler system,,,


They meet the code........

Period

 

[mtlogcabin]

This building is going to be used to repair windmill towers.

Repair would fall into an F-1 same issues for sprinkler and fire area.
707.3.10 requires a 3 hour fire barrier separation

 

[classicT]

Repair would fall into an F-1 same issues for sprinkler and fire area.
707.3.10 requires a 3 hour fire barrier separation

I have to agree, there is no way that I'd go for an S type occupancy. Per 306.1, F occupancies are structures or portion thereof used for "...assembling, disassembling, fabricating, finishing, manufacturing, packaging, repair or processing operations that are not classified as a..." group H or S. This has to be an F-1; see 306.2 - Machinery and Metals are all called out under F-1.

 

[steveray]

Might be S1/F1/B.....Depending on how much storage....Not that it should matter much as the requirements are not much different....(F and S anyway)