Ground Snow Load (pg) 35 lb/ft²

• Higher elevations (North Western parts of Frederick County) require 40 lb/ft²
• Section 1608 Uniform Statewide Building Code (USBC)/Virginia Construction Code (VCC). T1608.2 lists Frederick County as a ‘CS’ Case Study. Loading is based on historical performance and Figure 1608.3(1) of the BOCA Building Code as published in the 1996 edition.
• Basic Wind Speed: Section 1609.3 (www.atcouncil.org/windspeed)
  • Risk Category I – 105 mph
  • Risk Category II – 115 mph
  • Risk Category III – 120 mph
  • Risk Category IV – 125 mph
• Exposure Category: C, unless Exposure B definition applies. See USBC/VCC 1609.4.3
• Seismic Design Category: B, Section 1613 USBC/VCC 2021 edition
• Frost Line Depth: 24” below grade