Curb Vibration Rails ICR


Model ICR vibration isolation rails are vibration isolation assemblies installed between an existing roof curb  and the supported equipment. The ICR rail is an adjustable vibration isolation assembly. Standard spring deflections available are 1” and 2”. The assembly incorporates a flexible perimeter weather seal to prevent vibration transmission from the upper to lower section. Acoustic barrier panels can be supplied as an integral part of the rail to prevent radiated noise from exceeding the occupied space noise criteria. ICR isolation rails are designed with heavy-duty snubbers inside the isolator housings along with internal cross bracing to resist seismic and wind loading specific to the project requirements. Stamped engineering calculations are submitted for approval. Isotech can also supply ICR isolation rails with separate adjustable isolators for pedestal mounted support of condensing unit sections which do not require a full perimeter curb.

Typical applications are retrofits for rooftop air handling units and curb mounted fans with existing standard curbs or for units being supplied with separate curbs.