Table 7.3.5(a) Maximum Allowable Area of Unprotected Openings (percentage of exterior walls) - for Assembly, Educational, Day Care, Health Care, Ambulatory Health Care, Detention and Correctional, Residential, Residential Board and Care, Business, Industrial, and Storage Occupancies with Low Hazard Contents 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 0.84 0.74 0.74 0.74 0.74 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65
1.5 1.11 1.02 0.93 0.84 0.84 0.84 0.74 0.74 0.74 0.74 0.74 0.74 0.65 0.65 0.65 0.65 0.65 0.65 0.65
1.8 1.67 1.39 1.21 1.11 1.02 0.93 0.93 0.84 0.84 0.84 0.84 0.74 0.74 0.74 0.74 0.65 0.65 0.65 0.65
2.1 2.32 1.86 1.58 1.39 1.30 1.11 1.02 1.02 0.93 0.93 0.93 0.84 0.84 0.74 0.74 0.74 0.74 0.65 0.65
2.4 3.06 2.32 1.95 1.76 1.58 1.39 1.30 1.21 1.11 1.02 1.02 1.02 0.93 0.84 0.84 0.74 0.74 0.65 0.65
2.7 3.99 2.97 2.51 2.14 1.95 1.67 1.49 1.39 1.30 1.21 1.11 1.11 1.02 0.93 0.84 0.84 0.74 0.74 0.65
3 5.11 3.72 3.06 2.60 2.32 1.95 1.76 1.58 1.49 1.39 1.30 1.21 1.11 1.02 0.93 0.84 0.84 0.74 0.65
> 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 9.3 9.3 9.3 9.3 9.3