Yeah, bathroom vents can be sneaky culprits for sure. Have you checked if the ducting is insulated properly? Had a similar issue myself—thought it was windows too, turned out condensation was forming inside the ductwork...lesson learned the hard way.
Good point about the ducting—I overlooked mine at first too. But honestly, aluminum windows do tend to sweat more than vinyl or wood, especially if they're older. Had to run a dehumidifier in winter just to keep things dry...fun times.
Aluminum windows do have a reputation for condensation, but it's not always fair to blame the material alone. Older aluminum frames lacked thermal breaks, making them prone to sweating, sure, but newer models with proper thermal barriers perform significantly better. I've seen cases where even vinyl windows sweat badly due to poor installation or inadequate insulation around the frames. So while aluminum might be more susceptible, it's worth checking installation quality and insulation before writing them off completely...
Had a client last winter convinced aluminum was the culprit for his window condensation woes. Turns out whoever put them in skipped sealing around the frames completely—talk about shortcuts... Once we fixed that, no more puddles on the sill. Material matters, sure, but installation's key.
Aluminum windows do tend to transfer cold more easily, so condensation can be a legit issue, especially in colder climates. But like you said:
"Material matters, sure, but installation's key."
I've seen plenty of aluminum windows perform just fine when properly installed and sealed. Had a similar issue myself—thought it was the aluminum frames, but turns out the installer skipped insulating around the rough openings. Once that was sorted, condensation dropped dramatically. So yeah, aluminum isn't always the villain... installation shortcuts usually are.
Had a similar experience a while back—thought aluminum was the issue too, but turns out the caulking around the frames had cracked over time. Quick fix and things improved a ton. You're right, installation details really do matter more than people think.
"Quick fix and things improved a ton. You're right, installation details really do matter more than people think."
Glad someone pointed this out. Aluminum gets a bad rap sometimes because people assume it's always the material causing issues, but honestly, I've seen plenty of cases where poor sealing or rushed installs were the real culprits. I've worked with aluminum windows for years, and while they're not perfect (nothing ever is), they're generally pretty solid if installed correctly.
Your experience with the caulking cracking is actually super common—it's amazing how a simple touch-up can transform things. I once had a client convinced their windows were defective, but it turned out the original installers skipped proper flashing altogether... talk about shortcuts causing headaches. Anyway, good job figuring it out early; you'll probably save yourself from bigger problems down the line.
Totally agree about aluminum windows getting unfairly blamed. I've had aluminum frames in my place for about 8 years now, and at first, I thought I'd made a mistake because of condensation issues. Turns out the installers had done a pretty sloppy job sealing around the edges. Once I redid the caulking myself (not fun, but worth it), the humidity problems practically disappeared.
Funny enough, my neighbor had vinyl windows installed around the same time, and he still complains about moisture buildup. Just goes to show that material isn't always the main factor—installation quality and proper sealing make a huge difference. Aluminum can definitely hold its own if you give it a fair shot and a little TLC.
Had a similar experience here. When we first moved in, our aluminum windows were dripping with condensation every winter morning. I was convinced we'd have to replace them until a friend suggested checking the seals. Sure enough, the previous owner had done a pretty lazy job with the caulking. After spending a weekend redoing it properly, the difference was night and day. Honestly, aluminum gets way too much flak—installation and sealing really are key. Glad you got yours sorted too!
"Honestly, aluminum gets way too much flak—installation and sealing really are key."
Totally agree with this. When we bought our place, the windows were a mess every winter morning—thought we'd made a huge mistake. Turns out the previous owners had painted over the vents, blocking airflow completely. Once we cleared those out, things improved dramatically. Makes me wonder how many window issues are actually ventilation-related rather than material... Did you check your vents too, or was it purely a sealing issue?