The roof deck is the roofing material layer also called sheathing (sheeting) between the primary structural components (trusses & joists) and either insulative layers or weatherproofing layers in a typical roof system.
Usually the roof deck acts as a unifying structural diaphragm by tying all the structural components together.
There are many types of roof decks: Architectural Roof Pavers, plywood or OSB sheathing, wood tongue and groove, corrugated metal, grancrete encapsulated polystyrene, reinforced concrete, and double tee.
Roof decks are used as roof patio gardens and roof gardens when engineered for the static and dynamic weight loads. The exposure to stronger sun and wind creates challenges for plants and opportunities for design.
There are many different kinds of rooftop decks – most of which depend on the type of structure they are built on. Rooftop decks are often built above another structure, and they're open for air patios. Some of the most common places that they're attached to are: on top of a home, attached to an garage, above a sun room, or are a one-story addition.
- Traister, John E.. Illustrated dictionary for building construction. Lilburn, GA: Fairmont Press ;, 1993. 257. Print.
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