Mich. Admin. Code R. 400.8520 - Interior finishes
Rule 520.
(1) The
classifications of interior finishes for flame spread and smoke development, as
displayed in table 5, must be used as follows:
|
TABLE 5 FLAME SPREAD AND SMOKE DEVELOPMENT FOR INTERIOR FINISHES |
||
|
Class |
Flame Spread |
Smoke Developed |
|
A or I |
0-25 |
0-450 |
|
B or II |
26-75 |
0-450 |
|
C or III |
76-200 |
0-450 |
(2)
Basic materials in a means of egress and basement use occupancies must be class
A or I or B or II.
(3) Basic
materials in all other areas must be class C or III.
(4) Interior finish material more hazardous
than class C or III is prohibited in child use areas.
(5) If an approved automatic sprinkler system
is installed and maintained in accordance with NFPA-13 and NFPA-25, class C or
III interior wall and ceiling finish materials are allowed in any location
where class B or II is required and class B or II interior wall and ceiling
finish materials are allowed in any location where class A or I is
required.
(6) In an existing
licensed center or conversion, existing interior finishes that do not comply
with the classifications in subrule (1) of this rule may have their surfaces
protected with an approved fire-retardant coating to meet the classifications
for interior finishes. The coatings must be applied to interior finishes that
are attached to or furred out not more than 1 inch from a noncombustible
backing and applied according to manufacturer's recommendations. Documentation
must be provided as required by the department.
(7) Interior finish materials of classes B or
II and C or III that are less than 1/4 inch in thickness must be applied
directly against a noncombustible backing or be furred out not more than 1 inch
unless the tests under which such material has been classed were made without a
backer.
(8) Centers licensed before
December 7, 2006 may retain previously approved fire retardant coated interior
finishes.
(9) Textile materials
having a class A or I rating and used as an interior finish are allowed as
follows:
(a) On walls or ceilings of rooms or
areas protected by an automatic sprinkler system approved by the
department.
(b) On room partitions
that are less than 3/4 of the floor-to-ceiling height not to exceed 8 feet in
height.
(c) To extend up to 4 feet
above the finished floor on ceiling-height walls and ceiling-height
partitions.
(d) Textile materials
are allowed on walls and partitions if tested in accordance with and meeting
the standards of NFPA-265. If compliance is achieved by application of a
flame-proofing product in accordance with NFPA-701, documentation must be
provided as required by the department.
(10) Drapery material may be used for stage
curtains, room dividers, and similar uses if the material was tested and
approved in accordance with NFPA-701.
(11) Drapery material applied to surfaces of
a facility as an interior finish must meet the requirements of subrule (9) of
this rule.
(12) All vinyl and
wooden wall dividers must meet the interior finish requirements of subrules
(1), (2), and (3) of this rule, as applicable.
(13) Bulletin boards must meet the interior
finish requirements of subrules (2) and (3) of this rule.
(14) Combustible materials and decorations
may be displayed on walls, not to exceed 20% of each wall in each room.
Combustible materials and decorations suspended from or near the ceiling are
prohibited.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
Rule 520.
(1) The classifications of interior finishes for flame spread and smoke development, as displayed in Table 6, shall be used as follows:
| TABLE 6 | ||
| FLAME SPREAD AND SMOKE DEVELOPMENT FOR INTERIOR FINISHES | ||
| Class | Flame Spread | Smoke Developed |
| A or I | 0-25 | 0-450 |
| B or II | 26-75 | 0-450 |
| C or III | 76-200 | 0-450 |
(2) Basic materials in a means of egress and basement use occupancies shall be class A or I or B or II.
(3) Basic materials in all other areas shall be class C or III.
(4) Interior finish material more hazardous than class C or III is prohibited in child use areas.
(5) If an approved automatic sprinkler system is installed and maintained in accordance with NFPA -13 and NFPA -25, then class C or III interior wall and ceiling finish materials are permitted in any location where class B or II is required and class B or II interior wall and ceiling finish materials are permitted in any location where class A or I is required.
(6) In an existing licensed center or conversion , existing interior finishes that do not comply with the classifications in subrule (1) of this rule may have their surfaces protected with an approved fire-retardant coating to meet the classifications for interior finishes. The coatings shall be applied to interior finishes that are attached to or furred out not more than 1 inch from a noncombustible backing and applied according to manufacturers recommendations. Documentation shall be provided as required by the department .
(7) Interior finish materials of classes B or II and C or III that are less than 1/4 inch in thickness shall be applied directly against a noncombustible backing or be furred out not more than 1 inch unless, the tests under which such material has been classed were made without a backer.
(8) Centers licensed before December 7, 2006 may retain previously approved fire retardant coated interior finishes.
(9) Textile materials having a class A or I rating and used as an interior finish are permitted as follows:
(a) On walls or ceilings of rooms or areas protected by an automatic sprinkler system approved by the department .
(b) On room partitions that are less than - of the floor-to-ceiling height not to exceed 8 feet in height.
(c) To extend up to 4 feet above the finished floor on ceiling-height walls and ceiling-height partitions.
(d) Textile materials are permitted on walls and partitions where tested in accordance with and meeting the standards of NFPA -265. If compliance is achieved by application of a flame-proofing product in accordance with NFPA -701, documentation shall be provided as required by the department .
(10) Drapery material may be used for stage curtains, room dividers, and similar uses if the material has been tested and approved in accordance with NFPA -701.
(11) Drapery material applied to surfaces of a facility as an interior finish shall meet the requirements of subrule (9) of this rule.
(12) All vinyl and wooden wall dividers shall meet the interior finish requirements of subrules (1), (2), and (3) of this rule, as applicable.
(13) Bulletin boards shall meet the interior finish requirements of subrules (2) and (3) of this rule.
(14) Combustible materials and decorations may be displayed on walls, not to exceed 20% of each wall in each room . Combustible materials and decorations suspended from or near the ceiling are prohibited.