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Quick fix or redo: dealing with damaged aluminum flashing

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mochawood865
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(@mochawood865)
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"Also, what's causing the damage in the first place? If there's an underlying issue—like improper installation or water pooling—then even the best tape or silicone won't help much until that's addressed."

This is spot on. Had a similar issue a couple years back—kept patching it up with silicone and tape, but the problem kept coming back. Turned out we had a drainage issue causing water to pool right at the flashing. Once we fixed the drainage, the flashing repairs actually lasted.

If you're open to it, you might also consider adding some plants or greenery up there. A green roof or even just some strategic planting can help manage runoff and protect your flashing long-term. I've seen it work wonders, plus it's a nice bonus for insulation and aesthetics.

Either way, definitely worth figuring out what's behind the damage before spending more time on temporary fixes. Good luck!


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naturalist944793
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Totally agree—seen way too many homeowners slap silicone on flashing and call it a day. Usually, there's something sneaky going on underneath. Plants are cool, but honestly, just getting the slope right can save you a ton of headaches later... learned that the hard way myself.


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(@ashleyt12)
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"Usually, there's something sneaky going on underneath."

Exactly this. Silicone might buy you a little time, but it's rarely a permanent fix. Better to pull it off, check what's underneath, and redo properly. Saves money (and sanity) in the long run... trust me.


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nicksurfer
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Been down this road before, and yep, silicone is just a band-aid. Had some flashing around my chimney that was leaking a bit, figured I'd just slap some sealant on it and call it good. Worked great...for about two months. Then the leak came back worse than ever.

Ended up pulling the flashing off completely, and sure enough, there was rot starting underneath. Not a huge area, thankfully, but still meant extra work replacing a bit of plywood and shingles. If I'd just taken the flashing off and done it properly from the get-go, could've saved myself a weekend of headaches.

Couple quick points based on experience:

- Silicone or sealants might help temporarily, but if water's getting in, there's usually something more serious underneath.
- Aluminum flashing is pretty easy to replace once you get into it—just measure carefully and take your time fitting it.
- Check carefully for any wood rot or water damage while you're at it—catching it early can save you from way bigger issues later.
- If you're not comfortable doing roof work yourself (it can be sketchy), definitely worth getting someone who knows what they're doing.

Bottom line: quick fixes rarely stay quick or cheap in the long run. Learned that lesson the hard way...


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(@susan_ghost)
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Had a similar issue at one of the properties I manage. Tenant reported a small leak around the chimney, and maintenance figured they'd just patch it up quick with some silicone. Seemed fine at first, but a few months later, the tenant called again—this time, water was dripping into the attic and staining the ceiling below. Not good.

When we finally got up there and pulled the flashing off, it was pretty clear the silicone had just masked the real problem. The plywood underneath was soaked and starting to rot, and we ended up having to replace a decent-sized section of roof decking and shingles. What should've been a straightforward flashing replacement turned into a much bigger (and pricier) job.

Honestly, silicone and sealants have their place, but they're rarely a permanent solution for roof leaks. If water's getting in, there's usually something structural or installation-related going on. Flashing isn't rocket science, but it does need to be done right—proper overlaps, correct angles, and careful sealing. And if you're already up there, it's worth taking the extra time to inspect the surrounding area thoroughly. Catching rot or water damage early can save you from a much bigger headache down the line.

Also, roofing work isn't something to mess around with if you're not comfortable. I've seen too many DIY attempts end badly—either with injuries or shoddy repairs that cost more to fix later. Hiring someone who knows what they're doing might seem expensive upfront, but trust me, it's cheaper than dealing with the fallout from a botched job.

Bottom line, quick fixes rarely stay quick or cheap. Learned that lesson myself more times than I'd like to admit...


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