In terms of building construction, what is a cockloft?

• A. The attic above the roof.
• B. A ventilation duct.
• C. A storage area for equipment.
• D. The space between the top of the interior ceiling and the roof, which can act as a fire path and flame spread area.

Answer: (D)

The cockloft is the void between the top of the interior ceiling and the underside of the roof structure. It’s not the attic above the roof, nor a ventilation duct, nor a storage area for equipment. This space can act as a fire path and flame spread area because heat, smoke, and flames can travel horizontally through the concealed voids above the living space, connecting rooms and allowing rapid fire growth and spread between floors. In ventilation work, recognizing this area helps explain why opening into the cockloft can dramatically affect fire behavior, as it provides a route for the fire to extend and for gases to move through the building.