Local Design Criteria

Building and Environmental Design Criteria

• Ground snow load: 35 psf
• Wind design:
  • Wind speed (V_ult): 115 mph
  • Topographic effects: No
  • Special wind region: No
  • Windborne debris zone: No
• Seismic Design Category: B
• Subject to damage from:
  • Weathering: Severe
  • Frost line depth: 36 inches
  • Termite risk: Slight to moderate
• Ice barrier underlayment required: Yes
• Flood hazards:
  • Date of entry in NFIP: 1978
  • Current FIRM map revision dates: 2007 / 2017
• Air freezing index: ≤1,500º F
• Mean annual temperature: 50º F

Manual J Design Criteria

• Elevation: 5,160 feet
• Latitude: 40
• Altitude correction factor: 0.84
• Coincident wet bulb: 60º F
• Indoor winter design relative humidity: 30 percent
• Indoor winter design dry-bulb temperature: 70º F
• Outdoor winter design dry-bulb temperature: 7º F
• Heating temperature difference: 63º F
• Daily range: High
• Indoor summer design relative humidity: 50 percent
• Summer design grains: -35
• Indoor summer design dry-bulb temperature: 75º F
• Outdoor summer design dry-bulb temperature: 92º F
• Cooling temperature difference: 17º F