Section SPS 366.1204 - Historic buildings alterations Historic buildings are not required to comply with the IECC for building envelope compliance except as follows:
(1) Existing ceiling, wall, or floor cavities exposed during alterations shall be filled with insulation.(2) All replacement skylight, window, and/or door assemblies shall meet the minimum code requirements of the IECC unless specifically designed to address unique aesthetics associated with the historic nature of the building. Glass only replacements in an existing sash and frame are exempt from the application of the IECC.(3) Roofs without insulation in the cavity and where the sheathing or insulation is exposed during reroofing shall be insulated either above or below the sheathing so as to meet the minimum insulation required by the IECC, or shall provide insulation to the greatest extent possible.Wis. Admin. Code Department of Safety and Professional Services § SPS 366.1204
Adopted by, CR 16-094: cr. Register April 2018 No. 748, eff. 5-1-18; correction in (title) made under s. 13.92(4) (b) 2., Stats., Register April 2018 No. 748, eff. 5/1/2018