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ZSI Cush-A-Block

ZSI Cush-A-Block Supports, Base Only

The CBN-Base Support is UV resistant and suitable for installation on most types of roofing material or other flat surfaces. Can be used as a curb (sleeper) replacement. Screw fasteners can be used to attach one or two hole pipe straps or a piece of strut (not included).


  • Resistant to freeze and thaw
  • Dampens vibrations
  • Compatible with most rooftop materials
  • 100% recycled rubber qualifies for LEED Credits
  • Meets the Buy America Act and American Reinvestment Recovery Act

Specifications - Cush-A-Block Support

  • Material - 100% recycled rubber, UV resistant
  • Base Area Shown = 33.1 Sq. In.
    For use in bearing calculations

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