Both equally checks are required to avoid flammable grease from either catching fire when it passes through an adjacent space or, When the grease by itself is currently alight, producing a fire to begin in the adjacent spot by radiant heat. These solutions not merely supply important fire resistance but https://fire-resisting-ductwork-i89011.csublogs.com/44295599/not-known-factual-statements-about-grease-tight-extract-ductwork