Your roof looks fine to me.
Although there are some cracks in the sealant around the vents, you have to remember that there is also a bead of butyl caulk underneath the lip to help with sealing.
I would just clean everything really good and apply Dicor self leveling lap sealant.
It looks like the last person to re-caulk did not use self leveling caulk.
Peace
Dave
Although there are some cracks in the sealant around the vents, you have to remember that there is also a bead of butyl caulk underneath the lip to help with sealing.
I would just clean everything really good and apply Dicor self leveling lap sealant.
It looks like the last person to re-caulk did not use self leveling caulk.
Peace
Dave