Interlock Solar

Yes — metal roofs are the ideal platform for solar. They are durable, long-lasting, and provide a stable mounting surface. Unlike asphalt, an Interlock roof will not need replacement during the life of the array, so panels never have to come off for a re-roof. Mounting hardware engineered for interlocking metal panels is required.

Solar panels typically last 25–30 years or more. An Interlock aluminum roof outlasts the array itself, which is why pairing them eliminates the most expensive mid-life problem in residential solar: removing and reinstalling panels to replace a failing roof.

Cost varies with roof size, panel type and count, local labor, and installation complexity. Because no roof replacement is ever needed beneath the array, lifetime cost is typically lower than installing on a roof that must be replaced mid-way through the panel warranty. Contact us for a free consultation.

Yes, but the landscape changed sharply. In the U.S., the federal residential tax credit (25D) ended December 31, 2025; leases and PPAs can still capture the commercial 48E credit through 2027, and many state and utility programs remain. In Canada, the Greener Homes Grant and Loan are closed, with the Greener Homes Affordability Program and provincial rebates taking their place. See our U.S. and Canadian incentive guides for current details.

If your roof has less remaining life than the array, yes — sequence the roof first. Solar panels last 25–30 years; a mid-life roof failure under an array means paying a solar crew to detach and reset every panel before the roofer can even start. The honest framework: an asphalt roof past roughly a third of its expected life should be replaced before panels go on, while a lifetime metal roof removes the question entirely — the roof under the array simply never needs replacing. Full decision guide: our knowledge base article on sequencing roof and solar.

They all come off. A solar crew — not the roofer — must detach, store, and later re-mount and re-commission the entire array, and published solar-industry estimates for a full detach-and-reset commonly run from roughly $1,500 to $9,000 or more depending on array size and complexity. The system also produces nothing during the work, and re-mounting must be coordinated across two trades. Pairing solar with a roof that outlasts the array is how this cost is designed out entirely.

Non-penetrating mounts secure panels without drilling holes through the roof surface. The classic example is the seam clamp on a standing seam metal roof: it grips the raised seam mechanically, so the weather membrane is never pierced. Interlock roofs use mounting hardware engineered for the interlocking aluminum panel system so the weather barrier is not compromised — while asphalt shingle installations rely on dozens of lag-bolted, sealed penetrations that must survive decades of weather.

Not when installed properly. The Guardian Warranty excludes damage caused by the faulty installation or improper use of solar equipment — not solar itself. Coordinate the racking plan with your certified Interlock installer before panels go on, so the mounting is compatible with the interlocking panel system and both the roof warranty and the workmanship warranty stay intact. Details on the Warranty Answer Hub.