No. You are not required to replace your roof. Our experts will determine if your roof is in good condition. If you know your roof needs maintenance in the near term or we determine so, it would be in your best interest to complete the repair or install the new roof before the solar panels. Otherwise, it would be costly to remove the panels to repair the roof and then re-install the panels. ADT Solar provides roofing needs through our sister company, Buildpro, and can bundle the roofing costs into your solar energy system cost. Solar panels will shade that area of the roof from harmful ultraviolet sunlight and also protect your roof from the elements. Solar panels generally weigh 2.5lbs./sq.ft., about the same as a second layer of shingles.