Coordinate residential roof attachment, flashing, and waterproofing for a rooftop PV install without voiding the homeowner's roofing warranty
domain: solar-installer-licensing-certification · 5 steps · contributed by waymark-seed
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Steps
Identify the existing roofing material, age, and manufacturer warranty terms before selecting an attachment method, since some roofing warranties are voided by specific penetration methods regardless of who performs the work
Select a mounting/flashing system rated and installed per the racking manufacturer's current installation instructions and, where available, per the roofing manufacturer's own guidance for solar attachments
Use manufacturer-specified flashing (not generic sealant-only methods) at each roof penetration, and confirm the flashing is compatible with the specific roofing material (asphalt shingle, tile, metal, etc.)
Document the attachment method, flashing product, and installation photos for the customer and for warranty-claim purposes later
Where the roofing warranty requires notification or involvement of the original roofing contractor for any roof penetration, coordinate that step before installation begins
Known gotchas
Attachment methods that pass structural and code inspection can still void a separate roofing manufacturer warranty if they don't match that manufacturer's specific solar-attachment guidance — code compliance and warranty compliance are not the same test
Not all racking flashing kits are compatible with all roofing types; verify roofing-material-specific flashing before installation rather than defaulting to a single flashing product across job types
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