1. Pre-Install Prep (Office → Field)

☐ Final design reviewed (layout, attachments, electrical)
☐ Permit approved / install authorized
☐ Materials confirmed on truck (panels, rails, mounts, inverter, wire, breakers)
☐ Crew assigned (roof + electrician + lead)
☐ Safety plan reviewed (roof type, pitch, weather)
☐ Customer notified of arrival window

2. Site Arrival & Safety Setup

☐ Jobsite walk-through completed
☐ Ladder set and secured
☐ Fall protection installed (anchors, harnesses, ropes)
☐ PPE worn by all crew
☐ Main service disconnect located
☐ Roof condition verified vs plans

3. Roof Layout & Marking

☐ Roof measured and verified
☐ Chalk lines snapped for rail alignment
☐ Rafters/trusses located and marked
☐ Setbacks and fire code clearances confirmed
☐ Layout matches approved plan

4. Roof Attachments & Penetrations

☐ Pilot holes drilled correctly
☐ Lag bolts / standoffs installed into structure
☐ Flashing installed at every penetration
☐ Sealant applied properly
☐ Mounts torqued to manufacturer spec
☐ Waterproofing visually verified

5. Rail Installation & Grounding

☐ Rails installed on all mounts
☐ Rails leveled and squared
☐ Rail splices secured
☐ Rail bonding hardware installed
☐ Grounding path verified

6. Panel Staging & Roof Loading

☐ Panels inspected for damage
☐ Panels safely lifted to roof
☐ Panels staged near install rows
☐ Packaging removed and staged for cleanup

7. Panel Installation & Rooftop Wiring

☐ Panels mounted in correct positions
☐ Mid/end clamps installed and torqued
☐ Microinverters/optimizers installed (if applicable)
☐ Module-to-module wiring completed
☐ Wire management secured (clips, ties)
☐ Drip loops installed where required

8. Ground-Level Electrical Work

☐ Inverter(s) mounted securely
☐ DC disconnect installed
☐ AC disconnect installed
☐ Conduit run from roof to inverter
☐ Conduit secured and supported
☐ System tied into main service panel
☐ Breakers installed and labeled

9. Grounding & Bonding

☐ Equipment grounding conductor installed
☐ Bonding jumpers installed where required
☐ All metallic components bonded
☐ Ground continuity verified

10. Quality Check & Commissioning Prep

☐ All bolts and clamps torque-checked
☐ Roof penetrations re-inspected
☐ Wire runs neat and protected
☐ Polarity checked
☐ Voltage checked
☐ Labels applied per NEC & utility rules
☐ Monitoring hardware installed/configured (if allowed)

11. Site Cleanup

☐ Roof cleared of tools and debris
☐ Ground area cleaned
☐ Packaging removed
☐ Landscaping undisturbed
☐ Final walk-through of site

12. Customer Walkthrough & Closeout

☐ System overview explained to customer
☐ Safety shutoffs identified
☐ Next steps explained (inspection & PTO)
☐ Customer questions answered
☐ Photos taken for records
☐ Job marked “install complete”