We are looking to buy a house and had a home inspector come and comment the soil in the crawl space was wet. He also mentioned the space below the basement subfloor was only about 2 inches high. We are in Colorado and our city follows the following building codes
2015 International Residential Code (IRC)
2015 International Building Code (IBC)
2014 National Electric Code (NEC)
2015 International Plumbing Code (IPC)
2015 International Mechanical Code (IMC)
2015 International Fuel Gas Code (IFGC)
2015 International Energy Conservation Code (IECC)
2015 International Swimming Pool and Spa Code (ISPSC)
2015 International Existing Building Code (IEBC)
2009 ANSI (As referenced in the 2009 International Building Code)
The house was built in 1985 and I can’t find anything in the current codes that say if a crawl space has to be a certain height so I can begin to look if was also the same when the house was built.
We also had a structural engineer out and mention the area below the house needs to be dried out which we know.
So before we bug the county and city, is there a code for the height of crawl space?
Protection of wood and wood-based products from decay shall be provided in the following locations by the use of naturally durable wood or wood that is preservative-treated in accordance with AWPA U1 for the species, product, preservative and end use. Preservatives shall be listed in Section 4 of AWPA U1.
Wood joists or the bottom of a wood structural floor when closer than 18 inches (457 mm) or wood girders when closer than 12 inches (305 mm) to the exposed ground in crawl spaces or unexcavated area located within the periphery of the building foundation.