Why Butyl vs Caulk under roof vent flange?
What is the primary advantage of butyl tape vs just using Dicor or similar caulk (not silicone) under roof vents, windows, trim etc? That bubble gum seems to never stop oozing. I'm not taking things a...
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I dont think you would want to put butyl on rubber roof. In case the butyl tape has petro chemicals in the fromula you could be asking for trouble. On the roof I have always used a generous bead of Dicor, screw whatever down and more Dicor over the screw heads and around the edges.
