[anijet]

Many times over the years I've cleaned the area with Eternabond Eternaclean spray cleaner and applied Dicor Self-leveling lap sealant over the existing caulking.

I just cleaned the roof and inspected. It all looks good, no repairs this year.

I also installed Eternabond 6" white sealant tape on both cap seems back in 2015. It's seen about 18,000 miles since and is still doing its job.