I bought mine the same month it was built Oct 2016, (26 days) . 1st 6 months it sat outside in the cold and snow, checked the roof at least 3 times during that stretch. May to again Oct, in the storage lot. Used it almost every other weekend and checked roof once a month, washed it and TT 4 times. wax also. One touch up with Lap Sealant on a screw at the Sun roof (?) and the four corners that had crappy sealer applied right off the bat. Looks great as it starts it's second winter Up North