Fair points about duct tape, but honestly, specialized flashing tape can also fail pretty quickly if surface prep isn't spot-on. I've seen cases where even high-quality tape peeled off after a year. Metal flashing with proper mechanical fastening is usually the safest bet long-term.
"Metal flashing with proper mechanical fastening is usually the safest bet long-term."
True, metal flashing is solid, but I've had good results with liquid-applied flashing too—especially on tricky areas. Prep still matters, but it bonds nicely and stays flexible, avoiding some of the peeling issues tape has...
Metal flashing is definitely reliable, but honestly, the cost and hassle can add up pretty quick. I've been curious about liquid flashing myself—does it hold up well in extreme weather? I've patched some tricky spots with roofing sealant before, and it worked surprisingly well. If liquid flashing bonds better and stays flexible, maybe it's worth considering as a budget-friendly alternative...especially if we're talking smaller repairs rather than a full redo.
Liquid flashing can be handy, but I'd be cautious about relying on it for spots exposed to constant weather extremes. I've seen cases where UV exposure and temperature swings caused it to degrade faster than expected...might not be the best long-term solution.
I've had pretty decent luck with liquid flashing, honestly. Maybe it depends on the brand or how carefully it's applied? My garage roof had a spot where aluminum flashing kept lifting up, and after using liquid flashing as a quick fix, it's held up surprisingly well through two harsh winters. Not saying it's perfect for every situation, but maybe it's worth considering if you're tight on time or budget...