Pennsylvania Code
Title 34 - LABOR AND INDUSTRY
Part I - Department of Labor and Industry
Chapter 23 - LAUNDERING AND DYEING ESTABLISHMENTS
Subchapter B - DRYCLEANING AND DYEING
CONSTRUCTION-GENERALLY
Section 23.94 - Class IV buildings

(a) One story. Any room used for drycleaning or dyeing shall have a ceiling covered with noncombustible material approved by the Department.

(b) One story walls. All walls of drycleaning, dyeing, tumbler or drying rooms shall be of brick laid in cement mortar, or of reinforced concrete, or of stone laid in cement mortar, or covered with other noncombustible material approved by the Department.

(c) Multiple story. If any drycleaning or dyeing room is located in a multiple story building, the remainder of the building may not be used for any purpose of public assembly, or for any living, housing, or dwelling purposes, except that the owner of the drycleaning or dyeing plant may occupy part of the building for his living quarters.

(d) Multiple story walls. When drycleaning or dyeing rooms are located in a multiple story building, the walls of the buildings shall consist of brick or reinforced concrete not less than 8 inches in thickness or any other material equal in fire-resistive rating. The ceiling above the drycleaning or dry-dyeing room shall consist of 1 inch of cement plaster on metal lath or other material which is the equivalent of 1 hour fire resistance as listed by the Underwriters' Laboratories, Inc.

(e) Floors. The floors of every drycleaning, tumbler or dyeing room, shall be of concrete construction not less than 4 inches in thickness or other noncombustible material approved by the Department.

(f) Egress. Any room used for the purpose of drycleaning or dyeing shall have at least one exit which opens to the outside of the building or to an interior fireproof structure. No less than two means of egress shall be provided. They shall be unobstructed and ready for use at all times.

(g) Doors and windows. Door openings shall be protected by at least class C label doors, as classified by the Underwriters' Laboratories, Inc., and shall be of the self-closing type.

(h) Basement. Any basement, cellar or other open space below the first story of any building in which a drycleaning or dyeing plant is located shall be used only by the person, partnership, association or corporation operating the drycleaning or dyeing plant. Any basement, cellar or other open space, shall have installed therein an exhaust fan, or fans of sufficient size and a flue or flues of noncombustible material adequate to prevent concentration of vapors above the maximum concentration as specified in this subchapter for the drycleaning or dyeing rooms in class IV drycleaning and dyeing plants.