Commercial - Roof Deck and Composite Floor Deck
Introduction
Roof Deck
Steel deck is 38 mm or 76 mm deep, 750 to 900 mm wide, fluted steel sheets used in the construction of a roof as the supporting structural member on which the built-up roofing system is placed. Roof deck is most commonly used in a flat (horizontal) roofing configuration, but can also be used for sloping roofs. The in-plane strength of the deck can also be utilized as a steel deck diaphragm to act as the horizontal bracing for the structure, often eliminating the need for discrete bracing.
Composite Deck
Composite deck is a similar product to roof deck and is a fluted steel sheet, 38 mm or 76 mm deep. What distinguishes composite deck from plain deck (floor or roof) is the composite structural action developed between the steel deck and a concrete slab. The composite deck initially acts as a stay-in-place form for the concrete floor slab. After the concrete cures the composite steel deck and the concrete interlock creating a composite slab. This interlocking is achieved through a system of embossments rolled into the webs and flutes of the deck.
Deep Composite Deck
A deep composite deck is a similar product to the regular composite deck but is up to 203 mm deep. This deeper section, combined with additional reinforcing steel and concrete, creates a floor system that can achieve spans over 9 m. The long spans provide additional flexibility and efficiencies in the structural framing system.
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