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TextLocal Design Load Criteria
The following load criteria are based on Chapter 16 of the
2006 Virginia Construction Code, the 2005 ASCE-7 and Chapter 3 of the
2006 Virginia Residential Code.
| Type | Criteria | |
| Ground snow load | 25 psf | 1.25 kN/m2 |
| Wind speed (3 sec. gust method) |
90 mph
|
40 m/s
|
| Frost depth |
24 in.
|
600 mm
|
| Earthquake spectral response acceleration |
at short periods: 0.16 at 1 second period: 0.053 |
|
| Residential Seismic Design Category | B | |
| Weathering probability for concrete | severe | |
| Termite infestation probability | moderate to heavy | |
| Decay probability | slight to moderate | |
| Ice shield underlayment required | yes | |
| Flood hazards (date of entry into National Flood Insurance Program) | 3/5/1990 | |
| Winter Design Temperature | 15°F | -9°C |
| Air freezing index | ≤1500°F | ≤815°C |
| Mean annual temperature | 50°F | 10°C |
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