Policy SY10 INTERIOR FINISH - FIRE AND SMOKE CLASSIFICATION

Policy Steward: Director of Environmental Health and Safety

Contents:

  • Purpose
  • General
  • Classification of Interior Finish
  • Interior Finish By Occupancy
  • Smoke Density
  • Interior Floor Finish Classification
  • Further Information

  • PURPOSE:

    To define the guidelines for the purchase and acquisition of various types and compositions of carpeting, floor and ceiling tile, wall coverings, etc.

    GENERAL:

    It is the intent of the University to provide buildings and facilities so constructed, arranged, equipped, maintained and operated in such a manner as to avoid undue danger to the lives and safety of its occupants from fire, smoke, fumes and resulting panic during the period of time reasonably necessary for escape in case of fire or other emergency.

    One of the essential provisions necessary for ensuring this safe evacuation and reducing the possible rapid spread of fire and accumulation of untenable smoke conditions is the basic type of finish materials exposed on the interior surfaces of buildings including, but not limited to, fixed or movable walls, partitions, columns, ceilings and floors.

    CLASSIFICATION OF INTERIOR FINISH:

    In accordance with International Building Code, 2009 Edition, interior finish materials are grouped in the following classes, in accordance with their flame spread:

    Class A Interior Finish: Flame Spread 0 - 25

    Class B Interior Finish: Flame Spread 26 - 75

    Class C Interior Finish: Flame Spread 76 - 200

    The classification rating shall be identified in the specifications of the material(s) by the manufacturer. (This may be by classification letter, i.e. A-B-C, or by flame spread rating, or both).

    INTERIOR FINISH BY OCCUPANCY:

    Interior wall and ceiling finishes may not have a flame spread index which exceeds those specified in Table 803.9 “Interior Wall and Ceiling Finish Requirements by Occupancy” for the group and location designated. This table can be accessed by referring to the International Building Code, 2009 Edition.

    SMOKE DENSITY:

    In all instances, interior finish materials, irrespective of the approved classification of flame spread, shall have a smoke density rating of less than 450. This rating shall likewise be included in the specifications of the material(s) by the manufacturer.

    INTERIOR FLOOR FINISH CLASSIFICATION:

    Interior floor finishes shall be grouped in the following classes in accordance with the critical radiant flux ratings:

    Class I Interior floor finish. Critical radiant flux, minimum of 0.45 watts per square centimeter.*

    Class II Interior floor finish. Critical radiant flux, minimum of 0.22 watts per square centimeter.*

    *Critical radiant flux test ratings shall be classified in accordance with NFPA 253, "Standard method of test for critical radiant flux of floor covering systems using a radiant heat energy source."

    FURTHER INFORMATION:

    For questions, additional detail, or to request changes to this policy, please contact the Director of Environmental Health and Safety.


    Effective Date: March 16, 2017
    Date Approved: March 16, 2017
    Date Published: March 16, 2017

    Most Recent Changes:

    Revision History (and effective dates):

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