The current codes adopted by the Town are the 2006 International Codes.

To review the complete Johnstown adoption and amendments to the codes, click here. To review the individual code amendments, click on the code abbreviation below.

Click here for some of the significant changes to the 2006 IRC

Colorado House Bill 09-1091 requires carbon monoxide alarms to be install in residential properties.

Click here for more information.

Adopted Codes effective October 18, 2008

• 2006 International Residential Code - IRC
• 2006 International Building Code - IBC
• 2006 International Mechanical Code - IMC
• 2006 International Fuel Gas Code - IFGC
• 2006 International Plumbing Code - IPC
• 2006 International Energy Conservation Code - IECC
• 2006 International Fire Code - IFC
• 2008 National Electric Code - NEC
• 1997 Uniform Code for the Abatement of Dangerous Buildings - UCADB

Design Criteria

		effective 10-18-08
Basic Wind Speed		90 mph 3 second gust
Exposure		C
Ground Snow Load		30 psf
Seismic Design Category		B
Winter Design Temperature		1°
Ice Shield Underlayment Required		No
Air Freezing Index		1000
Mean Annual Temperature		45°
Subject to Damage from Weathering		Severe
Subject to Damage from Frost Depth		30"
Subject to Damage from Termite Damage		Slight to moderate
Subject to Damage from Decay

Foundation Design
 
All foundation systems shall be engineered foundations designed by a Colorado licensed engineer or Architect. The engineered foundation shall be based upon a soils analysis for the specific location where the foundation is to be installed.
Exception: IRC detached accessory buildings may have a foundation system approved by the building official.