We take all necessary steps to comply with these codes on your behalf, acting as your consultant along the way to make the Kitchen Exhaust System Cleaning & Maintenance process as smooth as possible.

NFPA 96 Standards

The National Fire Protection Association regulations are specifically designed to limit the life safety concerns and fire hazards associated with commercial cooking equipment and rooftop grease containment*.

4-8.2.1Rooftop terminations shall be arranged with or provided with the following:
c.) The ability to drain grease out of any traps or low points formed in the fan or duct near the termination of the system into a collection container that is noncombustible, closed to the elements, rainproof, structurally sound for the service to which it is applied, and will not sustain combustion. A grease collection device that is applied to exhaust systems shall not inhibit the performance of any fan. Exception: Grease containers that are evaluated for equivalency with the preceding requirements and listed as such.


8-3.1Hoods, grease removal devices, fans, ducts, and other appurtenances shall be cleaned to bare metal at frequent intervals prior to surfaces becoming heavily contaminated with grease or oily sludge. After the exhaust system is cleaned to bare metal, it shall not be coated with powder or other substance. The entire exhaust system shall be inspected by a properly trained, qualified, and certified company or person(s) acceptable to the authority having jurisdiction in accordance with Table 8-3.1.

Table 8-3.1. Exhaust Cleaning Inspection Schedule:

8-3.1.1Upon inspection, if found to be contaminated with deposits from grease-laden vapors, the entire exhaust system shall be cleaned by a properly
trained, qualified, and certified company or person(s) acceptable to the authority having jurisdiction in accordance with Section 8-3.

3-2.3Grease filters shall be listed and constructed of steel or listed equivalent material and shall be of rigid construction that will not distort or crush
under normal operation, handling, and cleaning conditions. Filters shall be tightfitting and firmly held in place.

4-3.1Openings shall be provided at the sides or at the top of the duct, whichever is more accessible, and at changes of direction. Openings shall be
protected by approved access panels that comply with 4-3.4.4. Exception: Openings shall not be required in portions of the duct that are accessible from
the duct entry or discharge.

5-1.1Approved upblast fans with motors surrounded by the airstream shall be hinged, supplied with flexible weatherproof electrical cable and service
hold-open retainers, and listed for this use.

* Reprinted with permission from NFPA 96 Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations ©1998, National Fire Protection Association, Quincy, MA 02269.
The reprinted material is not the complete and official position of the National Fire Protection Association, on the referenced subject which is represented only by the standard in its entirety.