CHAPTER 8 INTERIOR FINISHES - iccsafe.org

1 CHAPTER 8 INTERIOR FINISHESSECTION BC of this CHAPTER shall govern the use ofmaterials used as INTERIOR FINISHES , trim and decorative INTERIOR provisions shall limit theallowable flame spread and smoke development based onlocation and occupancy :1. Materials having a thickness less than inch( mm) applied directly to a noncombustible orfire-retardant-treated wood Exposed portions of structural members comply-ing with the requirements for buildings of Type IVconstruction in Section Applicability in flood hazard buildingsin flood hazard areas as established in Appendix G, interiorfinishes, trim and decorative materials below the designflood elevation shall be flood-damage-resistant materials complying with therequirements of this CHAPTER shall be permitted to be used asfinish for walls, ceilings.

2 Floors and other INTERIOR surfaces windows in the first story of build-ings shall be permitted to be of wood or of unprotectedmetal Foam plastics shall not be used as inte-rior finish or trim except as provided in Section or BC following words and terms shall, for thepurposes of this CHAPTER and as used elsewhere in this code,have the meanings shown VINYL WALL coveringconsisting of a woven textile backing, an expanded vinyl basecoat layer and a non-expanded vinyl skin coat. The expandedbase coat layer is a homogeneous vinyl layer that contains ablowing agent. During processing, the blowing agent decom-poses, causing this layer to expand by forming closed cells. Thetotal thickness of the wall covering is approximately inchto inch ( mm to mm).

3 FLAME property of materials or com-binations of component materials that restricts the spread offlame in accordance with NFPA propagation of flame over a SPREAD numerical value assigned toa material tested in accordance with ASTM E finish includes INTERIOR wall andceiling finish and INTERIOR floor FLOOR exposed floor surfaces ofbuildings including coverings applied over a finished floor orstair, including WALL AND CEILING exposedinterior surfaces of buildings including, but not limited to:fixed or movable walls and partitions; columns; ceilings; andinterior wainscoting, paneling or other finish applied structur-ally or for decoration, acoustical correction, surface insulation,structural fire resistance or similar purposes, but not numerical valueassigned to a material tested in accordance with ASTM E molds, chair rails, baseboards, handrails, doorand window frames and similar decorative or protective mate-rials used in fixed BC 803 WALL AND CEILING wall and ceiling FINISHES shall be clas-sified in accordance with ASTM E 84.

4 Such INTERIOR finishmaterials shall be grouped in the following classes in accor-dance with their flame spread A: Flame spread B: Flame spread C: Flame spread :Materials, other than textiles, tested inaccordance with Section Smoke developed indexshall range from 0-450 with the following restrictions:Exits, corridors25 Occupancy Group I50 Rooms in which the net100floor area per occupant is 10square feet or lessException:Materials, other than textiles, tested inaccordance with Section INTERIOR wall or ceiling FINISHES other than wall or ceiling FINISHES , other than textiles, shall be per-mitted to be tested in accordance with NFPA 286. Finishestested in accordance with NFPA 286 shall comply with Sec-tions and Acceptance the 40 kW exposure,the INTERIOR finish shall comply with Item 1.

5 During the 1602008 NEW YORK CITY BUILDING CODE167 :\data\CODES\STATE CODES\New York City\2008\Building\Final VP\ , August 14, 2008 8:46:53 AMColor profile: Generic CMYK printer profileComposite Default screenkW exposure, the INTERIOR finish shall comply with Item the entire test, the INTERIOR finish shall comply withItem During the 40 kW exposure, flames shall not spread tothe During the 160 kW exposure, the INTERIOR finish shallcomply with the Flame shall not spread to the outer extremityof the sample on any wall or Flashover, as defined in NFPA 286, shall The total smoke released throughout the NFPA 286test shall not exceed 1,000 wall or ceiling FINISHES , other thantextiles, upon exposure to fire, shall not produce products ofdecomposition or combustion that are more toxic in point ofconcentration than those given off by wood or paper whendecomposing or burning under comparable finish materials regulated by this chap-ter shall be applied or otherwise fastened in such a manner thatsuch materials will not readily become detached where sub-jected to room temperatures of 200 F (93 C)

6 For not less than30 these materials are applied onwalls, ceilings or structural elements required to have afire-resistance rating or to be of noncombustible construction,they shall comply with the provisions of this Direct attachment and furred walls and ceilings are required by any provision inthis code to be of fire-resistance-rated or noncombustibleconstruction, the INTERIOR finish material shall be applieddirectly against such construction or to furring strips notexceeding inches (44 mm) applied directly againstsuch surfaces. The intervening spaces between such furringstrips shall be filled with inorganic or Class A material orshall be fire blocked at a maximum of 8 feet (2438 mm) inany direction in accordance with Section Set-out walls and ceilings arerequired to be of fire-resistance-rated or noncombustibleconstruction and walls are set out or ceilings are droppeddistances greater than specified in Section , Class Afinish materials shall be used except where INTERIOR finishmaterials are protected on both sides by an automatic sprin-kler system or attached to noncombustible backing or fur-ring strips installed as specified in Section Thehangers and assembly members of such dropped ceilingsthat are below the main ceiling line shall be ofnoncombustible materials, except that in Type III and Vconstruction, fire-retardant-treated wood shall be permit-ted.

7 The construction of each set-out wall shall be offire-resistance-rated construction as required elsewhere inthis Heavy timber and ceiling fin-ishes of all classes as permitted in this CHAPTER that areinstalled directly against the wood decking or planking ofType IV construction or to wood furring strips applieddirectly to the wood decking or planking shall be fireblocked as specified in Section INTERIOR wall or ceiling finish that isnot more than inch ( mm) thick shall be applieddirectly against a noncombustible :1. Class A Materials where the qualifying tests were made withthe material suspended or furred out from thenoncombustible INTERIOR finish requirements based on wall and ceiling finish shall have a flame spreadindex not greater than that specified in Table for thegroup and location designated.

8 INTERIOR wall and ceiling finishmaterials, other than textiles, tested in accordance with NFPA286 and meeting the acceptance criteria of Sections , shall be permitted to be used where a Class A clas-sification in accordance with ASTM E 84 is used as INTERIOR wall or ceiling finishmaterials, textiles, including materials having woven ornon-woven, napped, tufted, looped or similar surface, shallcomply with the requirements of this Textile wall wall coverings shallhave a Class A flame spread index in accordance withASTM E 84 and be protected by automatic sprinklersinstalled in accordance with Section or the covering shall meet the criteria of Section when tested in the manner intended for use inaccordance with NFPA 265 using the product mounting sys-tem, including Method A test the MethodA protocol, flame shall not spread to the ceiling duringthe 40 kW exposure.

9 During the 150 kW exposure, thetextile wall covering shall comply with all of the follow-ing:1. Flame shall not spread to the outer extremity of thesample on the 8-foot by 12-foot (2438 mm by 3658mm) The specimen shall not burn to the outer extremityof the 2-foot-wide (610 mm) samples mounted inthe corner of the Burning droplets deemed capable of igniting tex-tile wall coverings or that burn for 30 seconds ormore shall not Flashover, as defined in NFPA 265, shall The maximum net instantaneous peak heat releaserate, determined by subtracting the burner outputfrom the maximum heat release rate, does notexceed 300 NEW YORK CITY BUILDING CODEINTERIOR :\data\CODES\STATE CODES\New York City\2008\Building\Final VP\ , August 14, 2008 8:46:54 AMColor profile.

10 Generic CMYK printer profileComposite Default Method B test the Method Bprotocol, flames shall not spread to the ceiling at any timeduring the 40 kW exposure. During the 150 kW expo-sure, the textile wall covering shall comply with the fol-lowing:1. Flame shall not spread to the outer extremities ofthe samples on the 8-foot by 12-foot (2438 mm by3658 mm) Flashover, as described in NFPA 265, shall Textile ceiling used as a ceiling fin-ish, carpet and similar textile materials shall have a Class Aflame spread index in accordance with ASTM E 84 and beprotected by automatic Expanded vinyl wall vinyl wallcoverings shall comply with the requirements for textile walland ceiling materials and their use shall comply with.