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 apart every few years unless something is wrong. If it goes together correctly there is less chance of things going wrong, right? :)
I understand manufacturers use it because of its application speed. Is it really the best solution? Caulking with an appropriate sealant seems so much better, then the lap seal on top. Key word "appropriate", which is the gist of my question.
"Because that's what the manufacturers use" is not an acceptable answer to me unless I understand the WHY. Opinions count as its all collective information.
Thanks again all!
I understand manufacturers use it because of its application speed. Is it really the best solution? Caulking with an appropriate sealant seems so much better, then the lap seal on top. Key word "appropriate", which is the gist of my question.
"Because that's what the manufacturers use" is not an acceptable answer to me unless I understand the WHY. Opinions count as its all collective information.
Thanks again all!
