IMC · 2024 International Mechanical Code
§504.6 · Commercial kitchen exhaust termination
Local amendment on §504.6 for the IMC 2024 Minnesota jurisdiction.
Plain-English explainer
The Minnesota amendment to §504.6 adds clearance rules the IMC base does not require: commercial-kitchen exhaust must discharge ≥10 ft from any property-line opening and ≥5 ft above any walking surface. The drafter cites it for any commercial Type I hood permit pulled in Hennepin / Ramsey / Dakota / Anoka / Washington / Carver / Scott counties.
Why inspectors flag this
A Minneapolis / St. Paul commercial-kitchen permit that terminates closer than 10 ft to a property-line opening fails this Minnesota amendment; the drafter surfaces the rule so the rough-in matches the local clearance before the inspector walks the site.
As quoted in the code: Commercial-kitchen exhaust in Minnesota must discharge no less than ten feet from any property-line opening and no less than five feet above any walking surface; the local amendment adds clearance rules the IMC base does not require.
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