Change of occupancy - Sprinkler requirement in a mixed use (R2/B)

[Ryan Schultz]

We potentially converting an existing (B) space to an (R2).

There's 2 stories.

3400sf per story--unsprinklered. Type VB.

The first story has (3) existing B/M tenants

The 2nd floor has (4) existing R2 tenants.

We would like to remodel an existing, 1200sf (B) occupancy on the 1st floor, to an (R2).

I assume we would only need to sprinkler this newly converted R2 with NFPA13R. The existing dwelling units upstairs do not need to be sprinklered. Would this be a correct assumption?

 

[classicT]

WI Existing Building Code​

1012.1.1.1 Change of Occupancy Classification Without Separation​

Where a portion of an existing building is changed to a new occupancy classification or where there is a change of occupancy within a space where there is a different fire protection system threshold requirement in Chapter 9 of the International Building Code, and that portion is not separated from the remainder of the building with fire barriers having a fire-resistance rating as required in the International Building Code for the separate occupancy, the entire building shall comply with all of the requirements of Chapter 9 applied throughout the building for the most restrictive occupancy classification in the building and with the requirements of this chapter.

1012.1.1.2 Change of Occupancy Classification With Separation​

Where a portion of an existing building is changed to a new occupancy classification or where there is a change of occupancy within a space where there is a different fire protection system threshold requirement in Chapter 9 of the International Building Code, and that portion is separated from the remainder of the building with fire barriers having a fire-resistance rating as required in the International Building Code for the separate occupancy, that portion shall comply with all of the requirements of Chapter 9 for the new occupancy classification and with the requirements of this chapter.

 

[Ryan Schultz]

There it is. Was looking in the wrong location. Thank you.