Roofing near the ocean - did you know salt air eats metal?

Yeah, stainless steel can be tricky near the ocean. Learned this the hard way myself doing some roofing jobs close to the coast. Even though stainless is supposed to resist corrosion, salt air is relentless - it gets into everything, especially joints and threads.

If you're dealing with roofing hardware or fasteners near saltwater, here's what I've found works best:

First, always go for marine-grade stainless steel (316 grade rather than 304). It's specifically designed to handle salt exposure better. Regular stainless (304) will rust eventually, especially in tight spots where moisture and salt can sit.

Second, apply anti-seize compound or a corrosion inhibitor on threads and joints during installation. It might seem like extra work at first, but it'll save you headaches later when you need to remove or adjust something.

Third, consider alternatives like aluminum or copper flashing if your budget allows. Aluminum flashing holds up pretty well against salt air (as long as it's properly coated), and copper is even better - though obviously pricier. Just remember not to mix metals directly without proper isolation because galvanic corrosion can become an issue.

Lastly, regular maintenance goes a long way. Rinse down metal surfaces occasionally with fresh water if possible - sounds simple, but it helps wash away salt buildup before it does serious damage.

Honestly though, no matter what you do, coastal environments are tough on materials. You just gotta accept you'll be replacing stuff more often than inland... part of the trade-off for that ocean view I guess.

Marine-grade stainless is good, but honestly I've had better luck with coated galvanized hardware in some coastal jobs. Stainless can still get pitted over time, especially in hidden spots you can't rinse easily... just something to think about.

Good point about the stainless - I've seen that happen too, especially in tricky spots like under flashing or behind gutters. Honestly, I've had decent luck with aluminum hardware in coastal setups. It doesn't rust, and if you pick a good coated or anodized type, it holds up surprisingly well. Not saying it's perfect, but it's another option to toss into the mix. Plus, aluminum is usually lighter and easier to handle when you're working up high... always a bonus in my book.

Have you noticed any issues with aluminum fasteners getting brittle over time, though? I had a coastal job a few years back where anodized aluminum held up great against corrosion, but after about 10 years, some of the hardware started snapping during maintenance... made me wonder about metal fatigue or something.

Interesting point about aluminum fatigue, but honestly, I've seen similar issues even with stainless steel hardware near the coast. Makes me wonder if it's less about metal fatigue and more about the constant exposure to salt air and moisture cycles causing micro-corrosion or stress points we can't easily spot. Have you considered composite fasteners or even coated stainless options? Might be worth exploring alternatives that aren't metal-based at all...