4101:8-3-17.1 Two-family dwellings.

317.1 Two-family dwellings. Dwelling units in two-family dwellings shall be separated from each other by wall and/or floor assemblies having not less than 1-hour fireresistance rating when tested in accordance with ASTM E 119. Fire-resistance-rated floor-ceiling and wall assemblies shall extend to and be tight against the exterior wall, and wall assemblies shall extend to the underside of the roof sheathing.

Exception: A fire resistance rating of 1/2 hour shall be permitted in buildings equipped throughout with an automatic sprinkler system installed in accordance with NFPA 13.

Effective: 05/27/2006

R.C. 119.032 review dates: 05/27/2011

Promulgated Under: 119.03

Statutory Authority: 3781.10(A)

Rule Amplifies: 3781.10, 3781.11, 3791.04