Not necessarily. We review the roof age, condition, roofing type and expected remaining life, then compare the roofing choices with the wider solar economics. Homeowners may be surprised by what still makes sense once the numbers are reviewed together.
For illustration:
An estimated $5,000–$8,000 panel removal and reinstallation around year 12 may pale beside the energy savings over the full life of the system.
Replacing a 25-year-certified roof at age 17 sacrifices some remaining roof value, but that lost value may not be as meaningful when compared to the savings gained by moving forward with solar sooner.
Those illustrations assume a conventional asphalt-shingle roof. Some longer-lived roof systems may pair especially well with solar and avoid the mid-life re-roof question altogether.
Where space and local rules allow, a ground-mounted system is another possibility—essentially putting a sunny part of the property to work producing power without using the roof.