Remaining Portion of a Partially Demolished Building // Energy Compliance

[archiyahoo]

I am dealing with an issue which occurs fairly rarely and would appreciate some pointers. On the diagram below, the grey highlighted buildings 2, 3, 4, and 5 are slated to be demolished. A demolition permit was issued and the work is already progressing. The project is located in Ohio, so the current code references are based on IBC 2021 and IEBC 2021

The west facade of Building 1 to the right, previously an interior partition would become an exterior wall. (Red highlight). That wall is a built solid masonry, and used to be an exterior wall in the past as well. The building is Type of Construction III-B

Building 1 is currently unoccupied but all building systems are functional and the Life Safety requirements for its occupancy (B) are compliant.

The newly uncovered west facade would be covered with metal cladding.

The Question is whether or not the newly exposed facade needs to comply with the Energy Conservation Code in terms of adding insulation to the exterior wall. I assume that this scope would be treated as an alteration. Is it possible to be treated as repair? Do I need to use insulation on the facade in question, or could I get by with a simple metal profile cladding system?

Thank you for the attention,
R

 

[e hilton]

I thought maintenance was replacing like for like.

 

[RLGA]

I would not call it a repair. An alteration is more appropriate, in my opinion.

Chapter 5 of the IECC addresses existing buildings. Since the existing building wall is now a "new" building envelope assembly, I would say that compliance with Sections C402.1 through C402.5, as stated in Section C503.2, is required.

 

[steveray]

I would not call it a repair. An alteration is more appropriate, in my opinion.

Chapter 5 of the IECC addresses existing buildings. Since the existing building wall is now a "new" building envelope assembly, I would say that compliance with Sections C402.1 through C402.5, as stated in Section C503.2, is required.

Agree...A "new" component meets "new" code....

 

[archiyahoo]

I would not call it a repair. An alteration is more appropriate, in my opinion.

Chapter 5 of the IECC addresses existing buildings. Since the existing building wall is now a "new" building envelope assembly, I would say that compliance with Sections C402.1 through C402.5, as stated in Section C503.2, is required.

I was a bit torn, but this makes sense. Thank you.

 

[LR419]

If you use the prescriptive method, OEBC 503.1 requires alterations to comply with the building code, which includes the energy conservation code, to the extent of the alteration.

If you use the work area method, OEBC 702.7 requires new work to comply with the energy conservation code.