Replace the roof before the solar, not after

Central Florida roofs fail on a different clock than the solar panels people want to bolt to them. A photovoltaic module is commonly warrantied for twenty-five years of production. An architectural shingle roof in this sun is often ready to be replaced somewhere in the second half of that span, sometimes sooner on a low, dark slope. Concrete tile can look fine while the membrane under it is finished.

Putting a new array on a finished roof is how homeowners buy the same roof twice: once now, and again when a crew has to detach and reset every module to replace the cover.

The question to ask in the attic and on the slope

How many honest years are left in the underlayment, the deck, and the flashings — not in the brochure for the shingle color. If the answer is under ten, and the array is supposed to stay up for twenty-five, replace the roof first. If the roof was permitted and installed recently and the deck was sound, solar on the existing cover can be the right job.

Attachments are part of the roof

• Shingles want a flashed attachment designed for shingles, installed with the new cover
• Tile wants a tile-system attachment, not a lag bolt improvisation between barrels
• Standing seam can often take a clamp so the pan stays closed

That is the point of a solar-ready reroof. The roof permit and the solar permit should describe the same house.

What it costs to ignore the sequence

Detach and reset is labor, new flashings, and the risk of breaking modules or disturbing a warrantied roof. It is cheaper to plan the layout while the deck is open. Use the roof calculator and the solar calculator as two planning numbers. Add them. Do not subtract a 2026 federal homeowner credit that is no longer there.

Cities where the roofs are simply old enough for this talk: Deltona, Brandon, Tampa, and the older streets of St. Petersburg.