3.14.2.

(1) Except as provided in this Subsection, the requirements of this Division apply to air-supported structures.

(1) Air-supported structures shall not be used for Groups B, C, or Group F, Division 1 major occupancies or for classrooms.

(2) Except where no fire separation is required between major occupancies, air-supported structures shall contain not more than one major occupancy.

(3) Except as provided in Sentence (5), air-supported structures are exempt from complying with Articles 3.2.2.20. to 3.2.2.83., except for maximum building size.

(4) Air-supported structures may be designed with interior walls, mezzanines, or similar construction.

(5) Interior construction contained within air-supported structures must meet the construction requirements of Articles 3.2.2.20. to 3.2.2.83.

(1) Except as provided in Sentences (2), (3) and (4), air-supported structures shall not be erected closer than 3 m to other structures on the same property or to the property line.

(2) Air-supported structures not occupied by the public need not be separated from one another, and are permitted to be erected closer than 3 m from other structures on the same property where such closer spacing does not create a hazard to the building occupants or the public.

(3) Except as provided in Sentence (4), an air-supported structure is permitted to be attached to another building provided the building to which it is attached,

(a) conforms to the requirements of other Parts of this Division based on the total building areas of the air-supported structure and the attached building,

(b) is sprinklered, and

(c) is separated from the air-supported structure by a fire separation having a fire-resistance rating of not less than 1 h.

(4) An air-supported structure is permitted to be attached to another building provided the building to which it is attached,

(a) has a building area not more than 200 m²,

(b) conforms to the requirements of other Parts of the Code based on the building area of the attached building, and

(c) is sprinklered or separated from the air-supported structure by a fire separation having a fire-resistance rating of not less than 1 h.

(1) The ground enclosed by an air-supported structure and for not less than 3 m outside of such structure shall be clear of all flammable or combustible material or vegetation that will carry fire.

(1) Air-supported structures shall be constructed of material conforming to CAN/ULC-S109, “Flame Tests of Flame-Resistant Fabrics and Films”, or NFPA 701, “Fire Tests for Flame-Resistant Textiles and Films”.

(2) Materials for fabrics used in connection with air-supported structures are exempt from compliance with the requirements for flame-spread ratings for interior finishes in Subsection 3.1.13.

(1) An air-supported structure designed for an assembly occupancy with an occupant load of more than 200 persons shall have either an automatic emergency engine-generator set capable of powering one blower continuously for 4 h, or a supplementary blower powered by an automatic internal combustion engine.