California Codes, Civil Code - CIV, Division 3 — Obligations, Part 4 — Obligations Arising from Particular Transactions, Title 1.7 — Consumer Warranties, Chapter 5 — Home Roof Warranties, Section 1797.91
Any contract for roofing materials, or for the installation, repair, or replacement of all or any portion of the roof of a residential structure, including, but not limited to, a manufactured home or mobilehome, shall be in writing if the contract includes any warranty of the materials or workmanship that extends for any period of time beyond completion of the work.
Notes
Requires a contract for roofing materials or for installing, repairing, or replacing any part of a residential roof, including a manufactured home or mobilehome roof, to be in writing when the contract includes a materials or workmanship warranty extending beyond completion of the work. Establishes the writing requirement based on that extended warranty.
Use as reference
Lexinter.net | California Code, Civil Code - CIV § 1797.91 | https://laws.lexinter.net/codes/california/civil-code/division-3/part-4/title-1-7/chapter-5/section-1797-91