S-2.1, r. 6 - Regulation respecting industrial and commercial establishments

Full text
4.2.2. In any low hazard establishment, or medium hazard establishment protected with automatic extinguishers, non-enclosed vertical openings are allowed, provided that:
(a)  these openings do not connect more than 3 communicating floors;
(b)  the lowest level or the one above is at ground level;
(c)  the 3 communicating floors are unobstructed so that the beginning of a fire can be easily detected;
(d)  the capacity of exits can accommodate the occupant load of the 3 storeys;
(e)  each storey considered separately, has at least one half of its required exits leading directly to an area isolated with a partition having a fire resistance of 2 hours;
(f)  any other requirement of Division IV is observed.
R.R.Q., 1981, c. S-2.1, r. 9, s. 4.2.2.