Roof Warranty for Slate & Copper
Warranty · In writing
Every job leaves with a binder. Photos before, photos during, photos after. Material spec sheets. Warranty terms in writing. Not a verbal promise — a document set your home keeps.
The Two Warranties
Workmanship and materials, both documented.
Every roof we install carries two warranties — one from us on the workmanship, one from the manufacturer on the materials. Both are recorded in writing in your contract before the first slate comes off the roof.
01 / Workmanship
10 years on the installation.
Every Art Slate installation carries a 10-year workmanship warranty as standard. If the install fails due to how we did the work — not the materials, not weather, not a tree through your roof — we fix it at no cost to you.
Transferable: the warranty stays with the home, not the homeowner. If you sell, the next owner inherits the remaining warranty.
In writing: warranty terms are documented in the signed contract. No verbal promises, no “we usually cover that.”
02 / Materials
Manufacturer warranty by material.
Each material we install carries its manufacturer’s warranty separately. We document each one in your project binder with the manufacturer name, warranty registration number, and term length.
- Natural slate · 75–125 years against defect
- Synthetic slate (EcoStar, DaVinci) · 50 years
- Bare copper flashing · 20–50 years (supplier-dependent)
- EPDM membrane · 20–30 years
- TPO membrane · 15–25 years
- Ice melt cable · 10 years
What’s NOT covered
We’re upfront about it.
Our warranty doesn’t cover everything. The exclusions below are standard in slate roofing and we’ll go over each one during the contract review — not at the time of a claim.
- Damage from third-party work. If another contractor walks your roof and breaks slate, that’s between you and them.
- Acts of God. Hurricane-force winds, fallen trees, hail above standard insurance damage. Your homeowner’s policy covers these; our warranty doesn’t.
- Modifications by others. If a solar installer or HVAC contractor cuts into our roof, the warranty on that section is void.
- Wear from age. Slate that’s at end of its 100-year service life isn’t covered by a 10-year workmanship warranty — that’s old age, not bad installation.
Schedule Your Assessment
Talk through the warranty terms during the assessment.
Every contract gets a line-by-line warranty review before signing. No fine print, no surprises.
or call 617-913-1130 — available 24/7 for emergencies