Path-Q Solar

What structural inspection is needed before installing solar on an older home?

Answer

The inspection should evaluate whether the roof and supporting structure can safely carry the proposed solar and mounting loads, including the condition of framing, sheathing, roof coverings, attachments, and any visible damage. The appropriate professional and scope depend on the home's construction and the installer's findings.

Key points

  • The review should consider the proposed panel layout and mounting points, not just general roof condition.
  • Signs of sagging, rot, leaks, alterations, inadequate framing, or prior damage may justify a more detailed structural assessment.
  • Electrical service and roof condition should be reviewed alongside structure because they can independently limit the project.

What it depends on

  • Home age, construction type, alterations, and available plans
  • Roof condition and proposed array size and location
  • Installer findings and applicable structural requirements

Risks and trade-offs

  • A visual roof inspection may not establish concealed framing capacity.
  • Additional engineering or reinforcement can increase cost and delay.
  • Skipping review may create safety, approval, insurance, or warranty problems.

Information you may need

  • Building plans, roof history, and evidence of prior alterations
  • Preliminary panel layout and mounting loads
  • Installer's required inspection scope and any structural professional's report

Your next step

What to do next

Ask installers to screen the site, then commission the level of structural review they specify before finalizing the design or contract.

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SQ00659