I've had similar experiences with Eternabond—it's impressive stuff, especially in a pinch. But from what I've seen, aluminum flashing tends to degrade differently depending on climate and exposure. In my case, the south-facing sections took a beating way faster than the shaded areas. UV rays really speed up deterioration, even with quality tape like Eternabond.
Have you noticed any difference in how long these temporary fixes hold up based on orientation or exposure? I'm curious if others have found certain conditions where Eternabond or similar products last significantly longer or shorter. Might help us all gauge when it's time to bite the bullet and do a proper replacement.
I've noticed something similar at my place—south side flashing took a real beating after just one summer. North side still looks decent though, even with the same Eternabond fix. Guess sunlight really does make a difference... might be worth keeping an eye on it.
Interesting observation about the sunlight exposure... makes me wonder if the Eternabond fix holds up differently depending on the angle or intensity of sunlight. Have you noticed any difference in durability between vertical and horizontal surfaces? I'm also curious if anyone's tried adding some kind of UV protectant coating over Eternabond to extend its lifespan. Could that even work, or would it mess with adhesion?
I've noticed Eternabond generally holds up pretty well regardless of orientation, but horizontal surfaces definitely seem to take a bit more beating from UV exposure and weather. On roofs or horizontal flashing, water pooling and direct sunlight intensity can accelerate wear compared to vertical applications, where water tends to shed quickly and sunlight hits at a less direct angle.
As for adding a UV protectant coating over Eternabond... that's an interesting idea. My gut feeling is that it might interfere with adhesion if applied directly underneath the tape, but applying something over the top afterward could potentially help extend its lifespan. I've never personally tried it, though I have seen cases where people painted over Eternabond with reflective roof coatings or elastomeric paints. Those seemed to hold up fine, at least from what I could tell.
One thing I'd be cautious about is compatibility—some coatings might chemically react with the Eternabond adhesive or surface material, causing premature breakdown or peeling. If anyone's considering this, I'd definitely recommend testing on a small area first and giving it some time to see how it holds up before committing to the whole job.
Has anyone here actually done a long-term test with a UV coating or paint over Eternabond? I'd be curious about real-world results rather than just theory...
