Design Information

Commonwealth Building Code

The uniform statewide building code is the building code used throughout Virginia and supersedes all local building codes.  The 2018 USBC can be found at the following link: 

As of June 30, 2022, Shenandoah County is enforcing the 2018 edition of the International Codes with the 2018 Virginia Uniform Statewide Building Code amendments.


Frost depth is 24 inches from grade to bottom of footing

Ground snow load is 40 p.s.f.

Wind speed is 115 m.p.h.

Seismic design category is B

Severe weathering

Moderate to heavy termite damage

Winter design temperature, 16 degrees

Mean annual temperature, 50 degrees

Air freezing index, 0-1000

Ice barrier underlayment requirement, Yes

Additional information can be obtained from the Plans Examiner at 540-459-6185.