Improper Hinge Kit - Code Deficiency During your most recent kitchen exhaust cleaning service, our technicians noted that one or more of your rooftop exhaust fans need a hinge kit. Hinge kits allow our technicians to tilt the fan back to be able to properly clean the fan bowl, the fan blades, and the ductwork. Without a hinge kit, our technicians are unable to clean the fan blades or the ductwork from above. NFPA 96: 7.8.2 Hinge kits are crucial in preventing damage to the roof and the exhaust fan, as well as ensuring a proper and complete cleaning of the system by allowing access to a currently inaccessible area. The proposal below is all-inclusive and includes all parts and labor. You can accept this proposal electronically or contact me directly. All quoted services/parts are installed/completed upon our next kitchen exhaust cleaning unless requested to be completed earlier. Due to constant price changes in the industry, the quoted price is only guaranteed for 14 days. Quotes ap