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Adopted Building Code

Current Adopted Building Code 

2018 International Building Code 2018 International Residential Code
2018 International Fuel Gas Code 2018 International Mechanical Code
2018 International Plumbing Code 2009 International Property Maint. Code
2018 International Energy Code 2018 International Fire Code
2018 International Existing Building Code 2020 National Electrical Code
2018 International Swimming Pool and Spa Code  

Design Criteria

Wind Speeds: The wind speed for the City of Arvada are 136Vult from the Eastern city limit West to Highway 93. The wind speed for areas West of Highway 93 is 150Vult.

Wind Resistance of Asphalt Shingles: Asphalt shingles shall be installed in accordance with Section R905.2.6. Shingles classified using ASTM D 3161 is acceptable for use in wind zones 110 MPH (49 m/s) or less. Shingles classified using ASTM 3161 Class F, are acceptable for use in all cases where special fastening is required.

Frost Depth: 36"

Exposure Category: The building official may accept an exposure classification from a qualified engineer, licensed with the state, if a detailed analysis of site conditions adjacent to the proposed project or structure is provided to support the engineer's recommendation. If an engineer's analysis is not provided, an exposure classification of "C" shall be used.

Snow Loads: Design snow loads for this jurisdiction are: roof snow load = 30 psf (1.44 kN/m2); ground snow load = 30 psf (1.44 kN/m2).


Manual J Design Criteria



Winter Heating 99% Dry Bulb

Summer Cooling 1% Dry Bulb

Altitude Correction Factor

Indoor Design Temp.

Design Temp-Cooling

Heating Temp. Difference

5453' E. of Hwy 93; Varies W. of Hwy 93

400 North



.832 E. of Hwy 93; Varies W. of Hwy 93





Cooling Temperature Difference

Wind Velocity Heating

Wind Velocity Cooling

Coincident Wet Bulb

Daily Range

Winter Humidity

Summer Humidity



15 mph

7.5 mph


High (H)