New Millennium Building Systems

B Roof Deck

Cellular B Deck

Cellular B-Dek is a 1 ½″ deep cellular structural roof deck unit that provides a support surface for various types of roofing materials. The liner panel with Dek-Knek® Sidelap Attachment System provides a finished underside ceiling with self-aligning sidelaps and concealed fasteners. The acoustic version BCA-Dek features a perforated liner panel, providing a noise reduction coefficient (NRC) value of 0.70 when used with a rigid insulation. Fiberglass acoustic batts are installed in the BCA-Dek cells at the factory under controlled conditions.

  • Available in 24 ½″ cover width
  • Available in seven (7) steel gage thicknesses (see load tables) with various deck/liner panel thicknesses, a variety of galvanized coating weights and an array of paint systems
  • Used as a secondary structural member to provide for lateral force distribution to the structure’s vertical force resisting systems
  • Types Cellular B-Dek and Cellular B-Dek Acoustical are ICC approved
Cellular B-Dek
Cellular B-Dek
Cellular B-Dek dimensions
Cellular B-Dek Acoustical
Cellular B-Dek Acoustical
Cellular B-Dek Acoustical dimensions