339.For the purposes of this Chapter, the following facilities are deemed to be facilities intended for use by the public in accordance with section 10 of the Act:
(1) bleachers, grandstands or exterior terraces whose highest point above the ground exceeds 1.2 m and whose load capacity exceeds 60 persons;
(2) tents or outdoor air-supported structures referred to in Chapter I of the Building Code (chapter B-1.1, r. 2) and used
(a) as residential occupancies or health care or detention occupancy whose floor area is 100 m2 or more; or
(b) as assembly occupancies or mercantile occupancies whose floor area exceeds 150 m2 or whose load capacity exceeds 60 persons;
(3) belvederes built with materials other than backfill and constituted of horizontal platforms linked by their construction elements whose total area exceeds 100 m2 or whose load capacity exceeds 60 persons including means of access.