What leads you to believe a solar roof will last "much longer" than 25 years? >Since I dont expect a sudden failure in 4 years, my guess it that it will last a

What leads you to believe a solar roof will last "much longer" than 25 years? >Since I dont expect a sudden failure in 4 years, my guess it that it will last another 10-20 years. Oh, you're just guessing.