Roof to Roof
PermaSpan RR 3-Axis Expansion Joints are ideal for allowing thermal movement and condensation control between two roof systems. The Expansion Joint prevents condensation by insulating against internal building temperatures and the 3-axis movement allows for vertical motion for live loads with no loss of thermal or seismic motion. Also, the continuous cleat protects the PermaSpan RR 3-Axis Expansion Joint from wind-driven rain. This carefully engineered product ensures long-lasting quality and high performance.
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20 Year, 120 MPH Wind Warranty