Solar + Roofing
Do Solar Panels Need to Be Removed to Replace a Roof?
Yes. A proper roof replacement removes everything down to the deck, and a solar array is mounted through the roof surface with penetrations that must be re-flashed into the new roof. Roofing around panels leaves old underlayment and old penetrations in place, which is not a replacement, and it typically voids workmanship coverage on those areas.
What roofing around panels actually leaves behind
- The original underlayment under the array, which is the layer that fails first
- The original mount flashing, now the oldest component on a new roof
- A visible line where old and new roofing meet
- Unresolved deck condition beneath the array
- A warranty exclusion covering the area you cannot see
Some contractors offer this because it is cheaper and avoids the electrical scope. It is a false economy: the section of roof most likely to leak later is the section you did not replace.
The correct sequence
-
Document first
Photograph panel condition and record production output before anything is touched.
-
De-energize properly
Shut the system down at the inverter and AC disconnect. This is electrical work.
-
Remove panels and racking
Label by position so the array goes back exactly as it came off.
-
Replace the whole roof
Including the deck under the array and new flashing for every penetration.
-
Reinstall and commission
New mounts, panels remounted, system energized, output verified against the baseline.
Frequently asked questions
- Can my roofer do the electrical part?
- Only if they are qualified to de-energize and recommission a grid-tied system. Ask directly, because this is the part most commonly handed off or improvised.
- How long are the panels off?
- On a single-team project, typically the roofing duration plus a day on each end. Split across two companies, the gap is usually scheduling, not work.
Keep reading
Want this looked at on your roof?
Free inspection, documented findings, no pressure.
Or call (972) 999-8388