Time to update the sealant on the roof vent. Adding some fresh Dicor self leveling lap sealant to make sure the water says out. Applying generous amounts of sealant ensures that the seal will last over time. This sealant is not meant to dry hard as a rock. It remains semi-flexible over time, which is good, because it will not crack or chip, and will always plug up any possible leakage points. The fact that the sealant is also self leveling is a plus, because it remains flat, evens out a bit after application, and molds itself tight to the surfaces to ensure water stays out. Combine all this with the butyl tape which we added under the roof vent, and you have yourself the best possible seal.
Refreshing the roof vent sealant.