Michigan Administrative Code › Department - Licensing and Regulatory Affairs › Bureau of Fire Services › Adult Foster Care Facilities › Part 6 - EXISTING ADULT FOSTER CARE CONGREGATE FACILITIES › Section R. 400.18653 - Interior finish

Current through Vol. 24-12, July 15, 2024
Rule 653.
(1) An
				  interior finish shall be a class A or B finish, except that an interior finish
				  in an individual room may be a class C finish for walls only.
(2) A combustible finish material shall be
				  applied to, or be furred out not more than 1 inch from, a noncombustible
				  surface behind which the space is firestopped into an area that extends not
				  more than 8 feet in any direction.
(3) If a combustible interior finish
				  comprises more than 10% of the aggregate wall and ceiling surface of any room
				  or space, and if the finish material is more hazardous than permitted in the
				  provisions of subrule (1) of this rule, then the combustible interior finish
				  may be treated so as to comply with the provisions of subrule (1) of this rule,
				  if the material is secured to the walls or ceilings as specified in subrule (2)
				  of this rule.
(4) If interior
				  finish is more hazardous than class A, and if it is furred more than 1 inch
				  from a noncombustible wall or ceiling surface, it shall be replaced with a
				  noncombustible material or reinstalled to comply with the provisions of
				  subrules (1), (2), and (3) of this rule.
(5) Existing wood paneling or combustible
				  acoustical interior finish in lobbies, waiting rooms, and office areas in
				  existing buildings may remain if the rooms or areas are separated from the rest
				  of the building by proper walls and fire doors.
(6) In a completely sprinklered building
				  where the basic material is class C and is installed to comply with the
				  provisions of subrules (1), (2), (3), and (4) of this rule, further treatment
				  is not required.
However, where the basic material is more hazardous than
					 class C and is installed to comply with the provisions of subrules (1), (2),
					 (3), and (4) of this rule, it shall be surface treated on its exposed side
					 whether or not the building is sprinklered.
(7) Class C interior finish in the form of
				  wainscoting which extends not more than 5 feet above the floor and which is
				  installed to comply with the provisions of subrules (1), (2), (3), and (5) of
				  this rule, shall not be required to be surface treated.
(8) Interior finish means the exposed
				  interior surfaces of buildings including, but not limited to, fixed or moveable
				  walls and partitions, columns, and ceilings. Doors, trim, the backing of
				  shelving, cabinets, and wardrobes shall be included in the 10% permissible
				  class C finish category.
(9) The
				  classification of interior finish materials as to their flame spread and smoke
				  development shall be that of the basic material used without regard to
				  subsequently applied paint or other covering, except where the paint or other
				  covering is of such character or thickness or so applied as to materially
				  affect the flame spread and smoke characteristics. Highly combustible material
				  applications, such as lacquer or pyroxylin base materials, or unapproved wall
				  coverings shall not be used.
(10)
				  Paints or coatings that contain plastics, polyesters, or epoxies may be used on
				  noncombustible surfaces without proof of classification if they are not applied
				  in excess of 8 mils total thickness.