Path-Q Solar

What should a landlord verify with the roof manufacturer before choosing a solar mounting method for a commercial membrane roof whose warranty excludes some attachments?

Answer

Obtain written confirmation from the roof manufacturer that the proposed mounting method, penetrations, adhesives, ballast, flashing, and installer meet the warranty's conditions. Also confirm who will perform approved detailing and who will preserve warranty coverage after solar installation.

Key points

  • Provide the manufacturer with the roof assembly, membrane type, age, plans, attachment details, and installer information.
  • Ask specifically which penetrations, adhesives, fasteners, ballast loads, walk pads, and maintenance practices are permitted.
  • Confirm whether a manufacturer-approved contractor, inspection, or warranty amendment is required.
  • Coordinate structural, wind, drainage, fire, and roof-maintenance reviews rather than treating warranty approval as the only criterion.

What it depends on

  • The roof warranty language and exclusions
  • Membrane type, roof assembly, age, and condition
  • Proposed mounting and attachment design
  • Manufacturer and installer approval requirements

Risks and trade-offs

  • A mounting method that preserves one warranty condition may increase structural, leak, maintenance, or wind risk.
  • A warranty exclusion may shift substantial repair costs to the landlord.
  • Verbal assurances may be difficult to rely on if the warranty dispute arises.

Information you may need

  • Complete roof warranty and roof drawings
  • Mounting, structural, drainage, and wind design
  • Installer qualifications and manufacturer approval status
  • Written warranty-impact statement

Your next step

What to do next

Send the complete proposed design to the roof manufacturer and require written approval or a written statement of exclusions before signing the solar contract.

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