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Multiple IronRidge XR Solar PV Mounting Rails can be combined to create longer rails when connected with the appropriate Bonded Splice (XR10, XR100, or XR1000). The Bonded Splice fits inside the rails, so it does not interfere with clamping or solar panel mounting locations - and also provides a clean, seamless appearance.
Like XR mounting rails themselves, XR Bond Splices are made from 6000-series aluminum. One splice; ⅝" self-drilling screws included.
When creating XR Rail lengths of 100 feet or more, use a Grounding Strap Expansion Joint with each Bonded Splice to prevent potential buckling of rails during thermal expansion.