What should be the condition of internal hood joints and seams?

What should be the condition of internal hood joints and seams?

• A. Sealed greasetight
• B. Left loose
• C. Caulked with standard caulk
• D. Painted orange

Answer: (A)

Keeping internal hood joints and seams sealed greasetight is essential because it prevents cooking grease from leaking into ductwork and behind panels, where it can fuel a fire, clog pathways, or compromise the fire suppression system’s effectiveness. The joints endure heat and heavy grease loads, so a grease-tight seal helps maintain system integrity, makes inspection easier, and reduces the risk of leaks or corrosion. Leaving joints loose creates gaps for grease and heat to escape and can lead to failures. Standard caulk isn’t designed to withstand high heat and constant grease exposure, so it can deteriorate and fail to maintain a proper seal. Painting the joints offers no functional protection. Therefore, the correct condition is a sealed greasetight seal.

Keeping internal hood joints and seams sealed greasetight is essential because it prevents cooking grease from leaking into ductwork and behind panels, where it can fuel a fire, clog pathways, or compromise the fire suppression system’s effectiveness. The joints endure heat and heavy grease loads, so a grease-tight seal helps maintain system integrity, makes inspection easier, and reduces the risk of leaks or corrosion. Leaving joints loose creates gaps for grease and heat to escape and can lead to failures. Standard caulk isn’t designed to withstand high heat and constant grease exposure, so it can deteriorate and fail to maintain a proper seal. Painting the joints offers no functional protection. Therefore, the correct condition is a sealed greasetight seal.