roof deck

noun

The flat layer of construction materials to which the weather impervious layers are attached to a form a roof. It is known as the "roof deck", and they may be either level (for a "flat" rooftop) or sloped.

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Meanings

nounroof deck (plural roof decks)

plural roof decks

  1. The flat layer of construction materials to which the weather impervious layers are attached to a form a roof. It is known as the "roof deck", and they may be either level (for a "flat" rooftop) or sloped.

    In multi-story commercial construction, the dominant form of deck (including roof deck) construction is composite steel deck.

    2024 March 3, Wikipedia contributors, “Deck (building)”, in English Wikipedia, Wikimedia Foundation
  2. An upper deck of a ship that provides shelter for another deck underneath.

    There are four decks under the main deck and three above, which are named the roof deck, the promenade deck, and the boat deck

    1913 May 29, “SS Gallia AND SS Lutetia”, in Shipbuilding and Shipping Record, volume 1, LONDON: Queen Anne's Chambers, S.W., page 323
Cite this entry
APA

roof deck. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/roof%20deck

MLA

“roof deck.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/roof%20deck. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “roof deck,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/roof%20deck.

Source: roof deck on Wiktionary, CC BY-SA 4.0.