Path-Q Solar
What evidence should I request before accepting an installer’s claim that my roof needs reinforcement?
Answer
Request a written explanation identifying the observed condition, proposed array loads, applicable design assumptions, and the specific reinforcement required. Useful evidence may include attic or roof photographs, framing measurements, calculations, an inspection report, or an engineer's stamped opinion when engineering is necessary.
Key points
- Ask whether the concern is structural capacity, attachment condition, roof deterioration, code compliance, or installer policy.
- Require the proposed reinforcement scope, materials, locations, and cost.
- Ask what evidence would show that reinforcement is unnecessary or that an alternative layout would reduce the issue.
- Compare the finding with an independent qualified assessment if the cost or conclusion is significant.
What it depends on
- Roof framing and existing loads
- Array size, equipment weight, and environmental design assumptions
- Roof age and condition
- Installer qualifications and the level of engineering review
Risks and trade-offs
- Rejecting needed reinforcement can create safety, damage, and liability risks.
- Accepting unnecessary work increases cost and may disturb the roof.
- A second opinion may delay the project but can clarify a disputed or expensive recommendation.
Information you may need
- Photos and inspection findings
- Proposed array and equipment loads
- Roof plans, framing details, and prior alterations
- Itemized reinforcement scope and price
Your next step
What to do next
Ask the installer for the written basis and itemized scope, then obtain an independent structural review when the recommendation is material or inadequately supported.
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