Cockloft Explained

A cockloft is a horizontal void between a building's uppermost ceiling and its roof, with no habitable space. They are typically of combustible construction, with limited or no access. They may create a large space over multiple occupancies or adjoining buildings. They are commonly present in North America in older commercial buildings and rowhouses, with the roof above sloping from front to back, creating a shallow attic-like space.^{[1] [2] [3]}

Cocklofts have particular significance in firefighting, since they are difficult to access, are unlighted, require stooping or crawling, with no walkable floors, and are typically constructed with exposed lumber. Fire may remain active and undetected in such spaces, and may flash over when oxygen is introduced by ventilation.^{[2] [4] [5]}

See also

• Rain roof, a superimposed roof structure over an existing roof that creates a concealed shallow space

Notes and References

1. Book: Sturgis . Russell . A Dictionary of Architecture and Building, Volume I . 1901 . Macmillan . 631.
2. Web site: Ancona . Salvatore . Attic vs. Cockloft: What's the Difference? . Fire Engineering . 29 May 2023. July 19, 2021.
3. Web site: Anatomy of Cockloft . City of Cambridge . 29 May 2023.
4. Web site: Ancona . Salvatore . Firefighters and Construction: The Cockloft . Fire Engineering . 29 May 2023 . March 23, 2021.
5. Web site: Row HouseFirefighting Tactics . International Association of Fire Chiefs . 29 May 2023.