Path-Q Solar

What questions should I ask an installer about roof penetrations?

Answer

Ask where penetrations will occur, why they are needed, how they will be flashed and sealed, who approves the method, how roof condition is handled, and who pays if installation causes a leak or damage.

Key points

  • Request a roof layout showing attachment locations, pathways, clearances, and any areas avoided because of roof condition or drainage.
  • Ask about the attachment and flashing system, compatible roofing materials, sealants, and inspection or quality-control process.
  • Confirm whether the roof is suitable for the expected remaining service life and whether repairs are included before installation.
  • Ask how penetrations will be documented for future roof work and whether removal and reinstallation are covered.
  • Obtain written workmanship and leak-repair responsibility.

What it depends on

  • Roof material, age, slope, and condition
  • Mounting and flashing method
  • Installer and roofer qualifications
  • Workmanship warranty and insurance

Risks and trade-offs

  • Poorly planned penetrations can cause leaks, structural problems, or difficult future maintenance.
  • Avoiding penetrations may require different mounting methods with their own cost or performance tradeoffs.
  • A workmanship warranty may not cover pre-existing roof deterioration or all consequential damage.

Information you may need

  • Roof inspection and layout
  • Attachment and flashing specifications
  • Installer qualifications and comparable references
  • Written leak, repair, removal, and reinstallation coverage

Your next step

What to do next

Ask the installer to mark every proposed penetration on the roof plan and explain the waterproofing method and responsible party in the contract.

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