Definition
Mounting rails are extruded aluminum structural members that secure PV modules to roof attachment points or ground-mount foundations. Industry standard 6063-T6 aluminum; IronRidge XR-rail, Unirac SunFrame, K2 Systems.
Key Takeaways
- Mounting rails = aluminum structural support for PV modules.
- 6063-T6 aluminum standard.
- IronRidge, Unirac, K2 Systems major brands.
- Sized per ASCE 7-22 wind/snow loads.
- UL 2703 listing for grounding/bonding.
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