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Section 502 Fire Hazard Severity
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The fire hazard severity of building sites for buildings hereafter constructed, modified or relocated into wildland-urban interface areas shall be established in accordance with Table 502.1. See also Appendix C.
TABLE 502.1 FIRE HAZARD SEVERITY
TABLE 502.1 FIRE HAZARD SEVERITY
FUEL MODELb | CRITICAL FIRE WEATHER FREQUENCY | ||||||||
≤ 1 Daya | 2 to 7 daysa | ≥ 8 daysa | |||||||
Slope (%) | Slope (%) | Slope (%) | |||||||
≤ 40 | 41-60 | ≥ 61 | ≤ 40 | 41-60 | ≥ 61 | ≤ 40 | 41-60 | ≥ 61 | |
Light fuel | M | M | M | M | M | M | M | M | H |
Medium fuel | M | M | H | H | H | H | E | E | E |
Heavy fuel | H | H | H | H | E | E | E | E | E |
E = Extreme hazard; |
H = High hazard; |
M = Moderate hazard. |
a. Days per annum. |
b. Where required by the code official, fuel classification shall be based on the historical fuel type for the area. |
The fire hazard severity identified in Table 502.1 is allowed to be reduced by implementing a vegetation management plan in accordance with Appendix B.
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