Stainless steel definitely holds up well long-term near saltwater, provided it's the right grade. I've inspected homes near the coast that had 316 stainless flashing and gutters installed 5-10 years ago, and they still looked solid. The key is using marine-grade stainless (316 rather than 304), since it has higher corrosion resistance. It's pricier upfront, but if you're tired of constant maintenance, it's probably worth the investment in the long run.
- Agree on 316 stainless—seen it hold up pretty well myself.
- Still, even marine-grade isn't bulletproof. I've noticed minor pitting after about a decade, especially in areas with heavy salt spray.
- Might wanna consider pairing stainless with non-metal solutions like green roofs or vegetation barriers. Plants can buffer salt air surprisingly well...
- Bit pricier upfront, sure, but cuts down maintenance headaches long-term.
