[R.O. 2009 § 500.090; Ord. No. 3493 § 2, 2-26-2015[1]]
A.
Floor assemblies for new single-family
and two-family dwellings not otherwise required in the International
Residential Code, 2009 Edition, to be fire resistance rated, shall
be provided with a one-half-inch gypsum wallboard member with a rough
tape, five-eighths-inch wood structural panel member or equivalent
on the underside of the floor framing member with seams protected.
There shall be no unprotected opening or penetrations in the membrane.
B.
Exceptions.
1.
Floor assemblies located directly
over a space protected by an automatic sprinkler system in accordance
with NFPA 13D or other approved equivalent sprinkler system.
2.
Floor assemblies located directly
over a crawl space not intended for storage or fuel-fired appliances.
3.
Portions of the floor assemblies
can be unprotected when complying with fire blocking in accordance
with Section R302.11.1 of the International Residential Code, 2009
Edition, and shall be installed along the perimeter of the unprotected
portion to separate the unprotected portion from the remainder of
the floor assembly.
4.
Wood floor assemblies using solid
sawn lumber or dimensional lumber equal to or greater than two-inch-by-ten-inch
nominal dimension.
5.
Floor assemblies with a listed and/or approved fire rating equivalent to the floor assembly described in Section 500.090(B), Exception (4), of this Title.
[1]
Editor's Note: Section 1 of Ord. No. 3493 also changed the title of Art. III from "Fire Prevention Code" to "Fire Prevention." Section 2 of same repealed former Section 500.090, Adoption of the International Fire Code, which derived from Ord. No. 3290 § 1, 11-20-2012; Ord. No. 3303 §§ 1 — 2, 12-20-2012 and replaced same with the material found herein.
[1]
Editor’s Note: Former Section 500.100,
Penalty, was repealed 2-26-2015 by § 3 of Ord. No. 3493.
