Section 408.30475. Existing structures.

Rule  475.    Sections  3411.1,   3411.4  3411.6,  3411.7,   3411.8.2,    3411.8.3    and

3412.6.14 of the code are amended to read as follows:

3411.1. Scope. The provisions of sections 3411.2 to 3411.9 of the  code apply to the maintenance, change of occupancy, additions, and alterations to existing buildings, including those identified as historic buildings in accordance with 1966 PA 1, MCL 125.1351 to 125.1356.

Exception: Type B dwelling or sleeping units required by section 1107 are not required to be provided in existing buildings and facilities.

3411.4. Change of occupancy.  Unless   technically  infeasible,   section 3411.6 of the code shall be applied in accordance with 1966 PA 1,  MCL 125.1351 to 125.1356.

                             Alterations. A building, facility, or element that is altered shall comply with the applicable provisions in chapter 11 of the  code  and ICC/ANSI A117.1 listed in chapter 35, unless technically infeasible. When compliance with this section is technically infeasible, then the alteration shall provide access to the maximum extent technically feasible.

Exceptions:

1.      The altered element or space is not required to be on an accessible route, unless required by section 3411.7 of the code.

2.     Accessible means of egress required by chapter 10 of the code are not required to be provided in existing buildings and facilities.

3.     Buildings, structures, or improved areas which exist on or before the effective date of these rules and which are in compliance with the code at the time of the issuance of the certificate of occupancy unless  the alteration specifically modifies  an area   covered  by sections  3411.7  to 3411.9.4 of the code.

4.    The alteration to type A individually owned dwelling units within a group R-2 occupancy shall meet the provision for a type B dwelling unit and shall comply with the applicable provisions in  chapter 11  and  ICC/ANSI A 117.1 as listed in chapter 35.

                                Alterations affecting an area containing a primary function. When an alteration affects the accessibility to, or contains an area of primary function, then the route to the primary function area shall be   accessible.

The  accessible  route  to  the  primary function  shall   include  accessible   toilets  and drinking fountains serving the area of the primary function.

Exceptions:

1.     This section does not apply to alterations limited solely to windows, hardware, operating controls, electrical outlets, and signs.

2.      This section does not apply to alterations limited solely to mechanical systems, electrical systems, the installation or alteration of fire-protection systems, and the abatement of hazardous materials.

3.    This section does not apply to alterations undertaken for the primary purpose of increasing the accessibility of an existing building, facility, or element.

                                   Elevators. Altered elements of existing elevators shall comply with the Michigan elevator code, R 408.7001 to R 408.8695  and  ICC/ANSI  A 117.1 as listed in chapter 35. Such elements shall  also  be  altered  in elevators programmed to respond to the same hall call control as the  altered elevator.

                                   Platform lifts. Platform  (wheelchair)   lifts  complying   with ICC/ANSI A 117.1 and installed in accordance with the Michigan elevator code, R 408.7001 to R 408.8695 shall be permitted as a component of  an   accessible route.

3412.6.14. Elevator control. Evaluate the passenger elevator equipment and controls that are available to the fire department to reach all occupied floors. Elevator recall controls shall be provided in accordance with the Michigan elevator code, R 408.7001 to R 408.8695. Under the categories and occupancies in table 3412.6.14, determine the    appropriate   value   and    enter that value into table 3412.7 of the code

under  safety   parameter  3412.6.14, elevator control, for fire safety, means of egress and general  safety.   The values shall be zero for a single-story building.

History:  1985 AACS; 1988 AACS; 1995 AACS; 1998-2000  AACS; 2001 AACS; 2004 AACS;