Technical: • A thermal break is required every 40 feet of continuously connected rail.
For additional concerns on thermal breaks in your specific project, please
consult a licensed structural engineer.
• Expansion joints prevent buckling of rails due to thermal expansion.
Splice bars may be used for thermal expansion joints. To create a thermal
expansion joint, slide the splice bar between the rail segments. Secure the
splice bar with two screws on one side only. Footings (such as L-brackets
or standoffs) should be secured normally on both sides of the splice. No
PV module or mounting hardware component should straddle the expansion
Splice Bar Material: 6005-T5 extruded aluminum alloy