If you have solar panels, a roofing contractor cannot simply “roof around them.” The panels and mounting rails must be completely removed before the old roof is torn off, and reinstalled afterward. This process is called a Detach & Reset (D&R). Roofing contractors are rarely licensed or insured to touch photovoltaic equipment; doing so instantly voids your solar warranty. You must hire a specialized solar company to perform the D&R. This third-party labor typically adds $200 to $300 per panel to your total project cost and requires complex logistical scheduling.
One of the most profound financial shocks for modern homeowners is discovering that a $12,000 roof replacement actually costs $18,000 because of the solar array sitting on top of it.
A residential roof and a residential solar array are two distinctly different engineering systems. When it is time to replace the shingles, these two systems become entangled in a legal, logistical, and financial knot that you must proactively untangle before signing a contract.
Logistics: The Detach & Reset Sequence
Replacing a roof with solar panels transforms a standard two-day project into a two-week logistical operation involving multiple distinct crews.
- Phase 1: The Detach (Solar Crew). A licensed solar technician team arrives. They disconnect the system from the electrical grid, unbolt the heavy glass panels, remove the aluminum racking rails, and safely store the hardware (usually in your garage or backyard).
- Phase 2: The Roof Replacement (Roofing Crew). The roofing contractor arrives, tears off the old shingles, repairs the decking, and installs the new roof envelope. Crucially, they must mark the original structural rafters so the solar crew knows where to drill later.
- Phase 3: The Reset (Solar Crew). The solar team returns. They drill new mounting lag bolts into the fresh roof, install specialized waterproof flashing brackets, remount the rails, attach the panels, and re-commission the electrical system.
The Legal Danger: The Warranty Trap
Never allow a roofer to tell you, “Don’t worry, my guys can take the panels down to save you money.” This is the fastest way to void tens of thousands of dollars in hardware warranties.
If you LEASE your panels (PPA – Power Purchase Agreement): You do not own the equipment on your roof. The leasing company (e.g., Sunrun, Sunnova) legally owns it. If a third-party roofer touches their equipment, you are in breach of contract and liable for massive fines. You *must* hire the leasing company to perform the D&R.
If you OWN your panels: You are protected by a 25-year manufacturer warranty on the inverters and the panels themselves. If an unlicensed roofer unplugs a micro-inverter and damages the pin connector, the manufacturer (e.g., Enphase or SolarEdge) will instantly deny the warranty claim. You must hire a certified solar installer to maintain the equipment guarantee.
Solar D&R Cost Estimator
Calculate the estimated third-party labor cost to safely detach, store, and reset your solar array.
When the panels are reset on the new roof, there will be a 4 to 6-inch gap between the shingles and the bottom of the panels. Pigeons and squirrels love to nest in this gap. They will aggressively chew through the expensive solar wiring, causing catastrophic system failures. Because the panels are already off the roof, this is the perfect, cost-effective time to ask the solar crew to install a “Critter Guard”—a black PVC-coated steel mesh that wraps around the entire array to keep pests out.
Integrate Your Full Project Budget
Do not evaluate a roofing estimate in a vacuum. Our 40-Factor Estimator allows you to input your exact solar panel count, generating a unified project budget that includes both the roofer’s bill and the solar D&R surcharge.
Launch the 40-Factor Estimator →Frequently Asked Questions
Can the roofer just roof around the panels?
No. This is illegal under modern building codes and mathematically impossible. The flashing brackets that hold the solar panels to the roof are physically integrated underneath the shingles. To replace the shingles, the brackets must be removed.
Will my new roof leak where the solar panels are reattached?
Not if flashed properly. Modern solar mounting hardware (like the IronRidge or Unirac systems) utilizes elevated lag bolts combined with custom metal “puck” flashing and chemical sealants. When the solar crew resets the panels, they flash these mounts into the new shingles just like a roofer flashes a plumbing pipe.
Engineering & Warranty References
- North American Board of Certified Energy Practitioners (NABCEP): Standards for photovoltaic system removal and re-commissioning to prevent arc faults and equipment damage.
- National Roofing Contractors Association (NRCA): Guidelines for coordinating roof replacement with third-party solar integrations to maintain roof membrane warranties.