Board flags potential permit and enforcement consequences if siding replacements trigger new‑construction rules

During the IEBC review, Kimberly highlighted a provision that could affect many retrofit projects: when replacement of exterior wall coverings involves two or more contiguous stories and more than 15% of the total wall area on any side, the work must comply with new‑construction exterior wall chapters (chapter 14 and chapter 26 of the IBC). "So possibly we could look at adding, siding as number 15 specifically... then unless it's more than 3 stories... it has to comply with chapter 14 and 26 of the IBC," Kimberly said.