6.2.5.2 — Appliances Installed Outside the Building

(1) Except as permitted by Articles 3.1.8.16. and 3.1.8.17. for the separation of exits, an opening in a fire separation having a fire-resistance rating not more than 1 h is permitted to be protected with fixed wired glass assemblies or glass blocks installed in conformance with NFPA 80, “Fire Doors and Other Opening Protectives”. (2) Wired glass assemblies permitted by Sentence (1) and described in MMAH Supplementary Standard SB-2, “Fire Performance Ratings”, are permitted to be used as closures in vertical fire separations without being tested in accordance with Sentence 3.1.8.4. (1). (3) Glass blocks permitted by Sentence (1) shall be installed in accordance with Subsection 4.3.2. and reinforced with steel reinforcement in each horizontal joint.

(1) Except as permitted by Sentences (2) and 3.1.8.14. (1), the fire-protection rating for a closure shall be determined in accordance with, (a) CAN/ULC-S104, “Fire Tests of Door Assemblies”, (b) CAN/ULC-S106, “Fire Tests of Window and Glass Block Assemblies”, or (c) CAN/ULC-S112, “Fire Test of Fire Damper Assemblies”. (2) Except as permitted by Sentence 3.1.8.10. (1), the fire-protection rating of a closure shall conform to Table 3.1.8.4. for the required fire-resistance rating of the fire separation. (3) The leakage rate of smoke dampers and combination smoke and fire dampers shall, (a) be determined in accordance with the applicable provisions in CAN/ULC-S112.1, “Leakage Rated Dampers for Use in Smoke Control Systems”, and (b) conform to Class I, II or III of that standard. (4) The leakage rate of a door assembly shall be determined in accordance with ANSI/UL-1784, “Air Leakage Tests of Door Assemblies and Other Opening Protectives”.