The Ontario Building Code | Roof Coverings Roof Coverings

(1) Except as provided by Sentences (2) and (3), every roof covering shall have a Class A, B or C classification as determined in accordance with Article

(2) A roof covering is not required to have a Class A, B or C classification for,

(a) a tent,

(b) an air-supported structure, or

(c) a buildingof Group A, Division 2 occupancy not more than 2 storeys in building heightand not more than 1 000 m2 in building area, provided the roof covering is underlaid with noncombustiblematerial.

(3) Combustible roof coverings on buildingswithin the scope of Article or shall have a Class A classification.

3.1.16. Fabrics