Isolated Rails (RTR)

Model RTR vibration isolation rails are a non-adjustable vibration isolation assembly installed between a standard roof curb and the supported equipment. Standard spring deflections available are 1”, 2” and 3”. 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 curb to prevent radiated noise from exceeding the occupied space noise criteria. RTR isolation rails are designed with resilient snubbers between the upper and lower sections and internal cross bracing to resist seismic and wind loading specific to the project requirements. Stamped engineering calculations are submitted for approval. We can also supply RTR 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.

RTR Vibration Isolation Rails Specification

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