2022 The International Residential Code requires a minimum of one vent to the "outdoor open air" per residence (IRC P3114.7). The rest of the plumbing fixtures can be vented by an air admittance valve | EMA Structural Engineers, Milestone Inspections Palm Beach Milestone Inspections Jacksonville, Condo Milestone Inspections Fort Lauderdale Milestone Inspections Vero Beach, Structural Engineers Florida, Structural Integrity Reserve Study, Milestone Inspections Palm Coast, Forensic Engineers Palm Beach Category: 2022 The International Residential Code requires a minimum of one vent to the “outdoor open air” per residence (IRC P3114.7). The rest of the plumbing fixtures can be vented by an air admittance valve Home 2022 The International Residential Code requires a minimum of one vent to the “outdoor open air” per residence (IRC P3114.7). The rest of the plumbing fixtures can be vented by an air admittance valve error: Content is protected !!