Table 7.3.5(b) Maximum Allowable Area of Unprotected Openings (percentage of exterior walls) - for Mercantile and Industrial and Storage Occupancies with Ordinary Hazard Contents, and Industrial and Storage Occupancies with High Hazard Contents Exceeding the MAQ per Control Area as Set Forth in 34.1.3 and Complying with Prorection Level 4 and Protection Level 5 as required by Table 7.3.2.1

Horizontal Separation (m) Maximum Area of Exposing Building Face (sqm)
9.3 14 18.6 23.2 27.9 37.1 46.4 55.7 65 74.3 83.6 93 139 186 232 325 464 929 >1858
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1.2 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37
1.5 0.56 0.46 0.46 0.46 0.46 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37
1.8 0.84 0.65 0.65 0.56 0.56 0.46 0.46 0.46 0.46 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37
2.1 1.11 0.93 0.74 0.74 0.65 0.56 0.56 0.46 0.46 0.46 0.46 0.46 0.37 0.37 0.37 0.37 0.37 0.37 0.37
2.4 1.58 1.21 1.02 0.84 0.84 0.65 0.65 0.56 0.56 0.56 0.46 0.46 0.46 0.37 0.37 0.37 0.37 0.37 0.37
2.7 1.95 1.49 1.21 1.11 0.93 0.84 0.74 0.65 0.65 0.65 0.56 0.56 0.46 0.46 0.46 0.37 0.37 0.37 0.37
3 2.51 1.86 1.49 1.30 1.11 1.02 0.84 0.74 0.74 0.65 0.65 0.65 0.56 0.46 0.46 0.46 0.37 0.37 0.37
4.6 6.41 4.46 3.53 2.88 2.51 1.95 1.67 1.49 1.30 1.21 1.11 1.11 0.84 0.74 0.65 0.56 0.56 0.46 0.37
6.1 9.3 8.45 6.50 5.29 4.46 3.53 2.88 2.51 2.23 2.04 1.86 1.67 1.49 1.11 0.93 0.84 0.65 0.56 0.46
7.6   9.3 9.3 8.45 7.15 5.48 4.46 3.81 3.34 2.97 2.69 2.51 1.86 1.49 1.30 1.02 0.84 0.65 0.46
9.1       9.3 9.3 7.99 5.48 5.20 4.83 4.27 3.90 3.53 2.51 2.04 1.67 1.39 1.11 0.74 0.56
> 3m           9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3