I've actually found vinyl flashing to be more problematic in my experience. It tends to crack or warp over time, especially in areas with extreme temperature swings. Aluminum can corrode, sure, but if you use a proper barrier tape between it and treated lumber, it usually holds up pretty well. Railings are definitely sneaky though—I once leaned on mine and felt it shift slightly... turned out the screws had rusted through underneath.
I usually recommend giving the deck a thorough check at least once or twice a year—spring and fall are ideal. Railings are definitely tricky, like you mentioned. A quick tip: grab each railing firmly and give it a good wiggle to see if there's any play. Also, visually inspect underneath for rusted screws or loose connections. I've seen vinyl flashing issues too, but honestly, aluminum with barrier tape has been pretty reliable in my experience... just gotta keep an eye on it occasionally.
Twice a year sounds good in theory, but honestly, I find once every spring does the trick for me. Railings definitely deserve extra attention, but instead of just wiggling, I usually lean my weight into them a bit—had one come loose once that felt tight at first wiggle. Also, aluminum flashing is solid, but I've had decent luck with vinyl too if installed carefully... cheaper and holds up pretty well if you're on a budget.
Once a year sounds pretty reasonable to me too, especially if you're thorough about it. Leaning into the railings is a smart move—sometimes things feel solid until you put real weight on them. Ever thought about checking after big storms or heavy snowfalls though? I've found that weather can really speed up wear and tear, even if it's subtle at first.
Interesting point about vinyl flashing... I've mostly stuck with aluminum because of durability, but now you've got me curious. Have you noticed any issues with vinyl warping or cracking over time? I'm always looking for budget-friendly options that don't compromise on safety or sustainability.
Once a year is generally sufficient, provided you're thorough and methodical about it. I agree completely about checking after severe weather events—storms and heavy snow can really accelerate deterioration, especially in older decks. I've found that moisture accumulation around joints and fasteners is often subtle but can lead to significant structural issues if overlooked.
Regarding vinyl flashing, I've experimented with it on a smaller porch area. While it's definitely budget-friendly and easy to handle, I did notice some minor warping after a few seasons of temperature swings. Nothing catastrophic, but enough to make me cautious about using it extensively on larger or more exposed decks. Aluminum has been my go-to as well, primarily for its reliability and longevity. Still, vinyl might be suitable for sheltered areas or spots where aesthetics matter less. Just something to keep in mind depending on your specific setup and climate conditions...