Ducts shall lead directly to which location to avoid unduly increasing any fire hazard?

Ducts shall lead directly to which location to avoid unduly increasing any fire hazard?

• A. To the interior of the building
• B. To the exterior of the building
• C. To the plumbing riser
• D. To the adjacent building

Answer: (B)

Ducts for this system are required to discharge to the outside world. When exhaust from hoods is vented directly to the exterior, any heat, flames, or grease-laden vapors are kept out of interior spaces and concealed shafts, reducing the chance that a fire in the kitchen could spread through ductwork or into other parts of the building. Routing the duct to an interior space, into a plumbing riser, or toward another building creates pathways that can carry heat and flames, increasing fire hazard and potentially affecting adjacent areas. Venting to the exterior safely channels the exhaust to fresh air and minimizes the risk to the structure and occupants.

Ducts for this system are required to discharge to the outside world. When exhaust from hoods is vented directly to the exterior, any heat, flames, or grease-laden vapors are kept out of interior spaces and concealed shafts, reducing the chance that a fire in the kitchen could spread through ductwork or into other parts of the building. Routing the duct to an interior space, into a plumbing riser, or toward another building creates pathways that can carry heat and flames, increasing fire hazard and potentially affecting adjacent areas. Venting to the exterior safely channels the exhaust to fresh air and minimizes the risk to the structure and occupants.