TinnerFlow™3rd YearSheet Metal Work
All kitchen exhaust duct must slope a minimum of 1/4" per foot toward the grease reservoir, trap, or drip point. Flat or back-pitched duct allows grease t…
All kitchen exhaust duct must slope a minimum of 1/4" per foot toward the grease reservoir, trap, or drip point. Flat or back-pitched duct allows grease to pool, creating a fire hazard and a code violation.
Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.