Preventing Butyl Tape from oozing out
Can butyl tape on the outside seams be sealed with a larger caulk joint so it does not ooze out? Seems like most people are used to trimming it off when it gets ugly. My Lance camper has a cap seal ...
Forum Discussion
My butyl tape has oozed out over the last 3 years, but has slowed down the rate. However, in some spots it had became dry and flaky. Some chunks had fallen out, creating gaps, allowing some water to get between the side fiberglass and trim on the cabover (discovered some rusty screws at lowest point underneath that pullout trim that covers the screws).
This spring I trimmed all oozed butyl flush around entire camper and caulked over with non-sag dicor. So far so good, even with our 100+ degree summer. We'll see how it holds up. Hopefully a long time as working with dicor was a huge pain.
I'd say as long as all butyl still looks solid and is flexible without gaps, cracks, and totally fills the seams, just keep trimming. If it looks like it might no longer be doing its job in areas, scrape some out so you can run a nice bead of caulk.
This spring I trimmed all oozed butyl flush around entire camper and caulked over with non-sag dicor. So far so good, even with our 100+ degree summer. We'll see how it holds up. Hopefully a long time as working with dicor was a huge pain.
I'd say as long as all butyl still looks solid and is flexible without gaps, cracks, and totally fills the seams, just keep trimming. If it looks like it might no longer be doing its job in areas, scrape some out so you can run a nice bead of caulk.
