From: Estimating building vulnerability to volcanic ash fall for insurance and other purposes
Description | Wood, Light Frame, nonengineered | Commercial and Industrial, nonengineered | Concrete Frame/Reinforced Masonry, engineered | Unreinforced Masonry Bearing Walls, engineered | Post and Beam Construction (informal at low end) | ||
---|---|---|---|---|---|---|---|
Roof Pitch | High (>35Â deg) | Medium (6-35Â deg) | Low (<6Â deg) | Low (<6Â deg) | Low (<6Â deg) | ||
Vulnerability Functions | E1 | Median | 10.0 | 5.0 | 8.0 | 6.0 | 4.0 |
Beta | 0.50 | 0.40 | 0.50 | 0.50 | 0.50 | ||
Confidence | Med | Low | Low | Low | Low | ||
E2 | Median | 12.0 | 3.5 | 12.0 | 8.0 | 3.0 | |
Beta | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | ||
Confidence | Med | Low | Low | Low | Low | ||
E3 | Median | 9.0 | 3.0 | 7.0 | 8.0 | 2.0 | |
Beta | 0.40 | 0.50 | 0.50 | 0.36 | 0.50 | ||
Confidence | Med | Low | Med | Low | Med | ||
E4 | Median | 4.0 | 2.0 | 7.0 | 2.8 | 1.8 | |
Beta | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | ||
Confidence | Med | Low | Low | Low | Low |