- Inspect roof and, if necessary, replace it prior to installation
- Use stainless steel and/or aluminum hardware (rails, supports, clips, etc.)
- Use flashing and/or appropriate sealing for every roof penetration
- If necessary, reinforce roof with spacers or sistered rafters
- Use stainless steel lag screws with sufficient rafter penetration for loading specifications
- Make sure rail supports (standoffs, L-feet, or S5! clamps) are appropriately spaced for all loading considerations
- Choose rail and module clip color to match module frames
- Make sure rail and modules are properly grounded (Wiley WEEB, Unirac UGC-1, or Ilsco lay-in)
- Make sure that all mid-clips and end-clips are tight and square, and the appropriate height for the module frame
