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    Composite floors

    Cofrastra 70

    The composite floor deck Cofrastra® 70 is a trapezoidal profile with slightly re-entrant cross section geometry and several types of embossments.

      The composite floor deck Cofrastra® 70 is a trapezoidal profile with slightly re-entrant cross section geometry and several types of embossments. Thus, this metal floor decking provides an outstanding composite action between the steel profile and the reinforced concrete slab. The floor deck permits composite floor constructions with mid-size spans or heavy loads for various building types, like offices, industrial and commercial projects up to bridges and even ski jump structures.

      Projects using this product:

      Provides a maximum of spans up to 3.80m without props
      20% weight reduction in comparison to a traditional prefabricated concrete slab floor
      With temporary propping, the floor deck spans up to 6.0m like prefab concrete slabs
      Maximum thickness steel profile: 1mm
      Re-entrant profile allows a fast installation of ducts or suspended ceilings system
      Acoustic performance with Rw values from 48dB to 54dB approved by CSTB
      Metallic coating ZMevolution® or pre-painted steel
      Calculation software: Cofra 5