Path-Q Solar

What structural risks should I investigate before installing solar on an older home?

Answer

Investigate concealed roof or framing deterioration, limited structural capacity, nonstandard construction, prior alterations, and attachment conditions before installing solar on an older home.

Key points

  • Check for rot, insect damage, corrosion, sagging, cracked members, and past water intrusion.
  • Confirm that the framing and attachment locations can support the proposed system and environmental loads.
  • Older additions, reroofing layers, and undocumented modifications may make assumptions based on the main house unreliable.

What it depends on

  • Age and construction type of the home
  • Roof condition and framing layout
  • Past leaks, renovations, and additions
  • Proposed array size, attachment method, and site exposure

Risks and trade-offs

  • Hidden deterioration may not be visible from the roof surface.
  • Proceeding without resolving structural uncertainty can create safety, water-intrusion, warranty, and rework risks.

Information you may need

  • Construction and renovation records
  • Roof inspection and framing observations
  • Leak history and visible warning signs
  • Proposed mounting and system details

Your next step

What to do next

Have the installer identify structural assumptions and attachment points, and arrange an appropriately qualified structural review if those assumptions cannot be confirmed.

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