Isolation Curbs / Rails Search for Isolation Curbs / Rails

Reduce noise and vibration from compressors and fans.

Adjustable Spring Isolation Curb

  • Easy installation
  • Adjustable springs
  • Standard seismic rated
  • Can be wind/hurricane rated
  • Fully welded
  • Heavy gauge galvanized steel
  • Laterally stable
  • Full perimeter weather tight seal
  • Wood nailer
  • Removable spring pocket cover
  • 1″, 2″ or 3″ spring deflection

Cambridgeport’s adjustable spring isolation curb flashes into the roof like a regular roof curb eliminating the need for welded stub-ups and saves hours of time on the roof. Enjoy a sturdy galvanized steel lower body and heavy gauge galvanized steel top rail. You will not find any frustrating chicken wire on our high quality roof curbs.

No stub-ups

No chicken wire

Easily flashed in

High quality steel

Spring pocket

Fixed Spring Isolation Curb
Available as rail only

  • Standard seismic rated
  • Supports up to 15,000 lds
  • Can ship unassembled
  • Heavy gauge galvanized steel lower body
  • Extruded aluminum top rail
  • Laterally stable
  • Full perimeter weather tight seal
  • Wood nailer
  • 1″ or 2″ spring deflection
  • Can be wind/hurricane rated

Custom options available for both isolation curbs.