Section 400.8520. Interior finishes.

(1) The classifications of interior finishes for flame spread and smoke development in Table 1 shall be used as follows:

TABLE 1

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 shall be 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 shall be permitted in any location where class B or II is required and class B or II interior wall and ceiling finish materials shall be permitted in any location where class A or I is required.

(6)   In an existing licensed center or conversion, existing interior finishes which 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 manufacturer’s recommendations. Documentation shall be provided as required by the department.

(7)   Interior finish materials of classes B or II and C or III which are less than 1/4 inch in thickness shall be applied directly against a noncombustible backing or shall 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 shall be 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 ¾ 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 shall be 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.

History: 2013 AACS.