Exterior wall criteria.

Columbus City Codes § 4191.10

in effect

4191.10 - Exterior wall criteria. In addition to temperature insulation requirements of the Building Code, the following standards shall apply: (A) Stud walls shall be at least four inches in nominal depth and shall be finished on the outside with siding of stucco, brick, or stone veneer over sheathing or siding-on-sheathing. (B) Interior surface of the exterior stud walls shall be of gypsum board or plaster at least one-half inch thick, installed on the studs. The gypsum board or plaster may be fastened rigidly to the studs if the exterior is stucco or brick or stone veneer. If the exterior is siding-on-sheathing, the interior gypsum board or plaster shall be fastened resiliently to the studs so as to resume a prior position or form after being stretched or compressed. (C) Continuous composition board, plywood or gypsum board sheathing shall cover the exterior surface of the wall studs behind wood, vinyl, or metal siding installed so there are no gaps between individual sheets. The sheathing and facing shall weigh at least four pounds per square foot. (D) All joints of the sheathing shall be sealed with resilient caulking. (E) Insulation material rated R-13 or greater shall be installed continuously throughout cavity space behind the exterior sheathing and between wall studs. Insulation shall be glass fiber, foam or mineral wood. (Ord. 1138-94.)

Source: City of Columbus, City Codes and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/oh/columbus/codes/code_of_ordinances?nodeId=TIT41BUCO_CH4191AIEN_4191.10EXWACRFetched: 10/27/2026