[Code of Federal Regulations]
[Title 24, Volume 5]
[Revised as of April 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 24CFR3280.206]

[Page 118-119]
 
                 TITLE 24--HOUSING AND URBAN DEVELOPMENT
 
 CHAPTER XX--OFFICE OF ASSISTANT SECRETARY FOR HOUSING--FEDERAL HOUSING 
        COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT
 
PART 3280_MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARDS--Table of Contents
 
                          Subpart C_Fire Safety
 
Sec. 3280.206  Fireblocking.

    (a) General. Fireblocking must comply with the requirements of this 
section. The integrity of all fireblocking materials must be maintained.
    (b) Fireblocking materials. Fireblocking must consist of the 
following materials:
    (1) Minimum one inch nominal lumber, \5/16\ inch thick gypsum board, 
or equivalent fire resistive materials; or

[[Page 119]]

    (2) Other Listed or Approved Materials;
    (c) Fireblocking locations. (1) Fireblocking must be installed in 
concealed spaces of stud walls, partitions, and furred spaces at the 
floor and ceiling levels. Concealed spaces must not communicate between 
floor levels. Concealed spaces must not communicate between a ceiling 
level and a concealed roof area, or an attic space.
    (2) Fireblocking must be installed at the interconnection of a 
concealed vertical space and a concealed horizontal space that occurs:
    (i) Between a concealed wall cavity and the ceiling joists above; 
and
    (ii) At soffits, drop ceilings, cover ceilings, and similar 
locations.
    (3) Fireblocking must be installed around the openings for pipes, 
vents, and other penetrations in walls, floors, and ceilings of furnace 
and water heater spaces. Pipes, vents, and other penetrations that 
cannot be moved freely within their opening are considered to be 
fireblocked. Materials used to fireblock heat producing vent 
penetrations must be noncombustible or limited combustible types.

[71 FR 72042, Nov. 30, 2005]