Commercial Kitchen Ventilation Requirements
What's Covered
§1 — National & Model Code Framework
Five-standard overview: IMC 2021, NFPA 96 2021, ASHRAE 62.1-2022, IECC 2021, and UMC 2021 — with key sections, scope, and adoption status.
§2 — Makeup Air Requirements
Nine code provisions in detail: the 400 CFM trigger threshold, the "approximately equal" volume rule with the 80–90% practical target, the 10% hood cavity cap (per IECC §C403.7.7.1.1), the ±10°F temperature differential (IMC §508.1.1), the 0.02 in. w.c. pressure limit, interlock controls, and DCKV requirements above 2,000 CFM.
§3 — Regional Comparison Table
Side-by-side matrix for California (Title 24 / CMC), New York City (NYC MC + FDNY), Texas (IMC-based), and Florida (FMC) — covering governing code, MUA volume, temp differential, DCKV, filtration, cleaning schedules, and notable amendments.
§4 — Filtration Standards
Full NFPA 96 Chapter 6 breakdown: UL 1046 listing, 45-degree mounting angle, grease drain requirements, prohibited mesh filters, cleaning schedules (monthly/quarterly/semi-annual/annual by volume), and NYC FDNY quarterly minimum.
§5–§6 — Temperature Control + 12 Common Violations
Each violation card is ranked (Critical / High / Moderate) with code reference — from missing MUA units and undersized systems to duct clearance failures and missing air balance documentation.
§7 — 40-Item Compliance Checklist (7 categories, printable)
Hood type/installation, exhaust system, makeup air, grease filtration, fire suppression, cleaning, and documentation — each with code reference and Pass/Fail/N/A fields.
§8 — Quarterly Operator Self-Audit Template
Five-section fill-in form with YES/NO/N/A checkboxes, notes column, summary scoring, and sign-off block.
§9 — 15 Cited Sources with clickable URLs.