Dayton, OH Frost Depth & Snow Load: Roof Snow Load (2026)

This is a case where the distinction between the two snow quantities decides what the page can honestly say. Dayton's building guidance establishes a roof live load of 20 pounds per square foot and a roof snow load of 20 pounds per square foot for the area. It does not publish a ground snow load, which is the figure the Residential Code of Ohio actually leaves blank for jurisdictions to complete. So a designer needing a ground snow load for Dayton will not find one in the city's published guidance and should ask the building division directly, rather than substituting the 20 psf roof figure: the two are different quantities and roof loads are normally derived from ground loads rather than equal to them.