The window ledge mystery
It started with a slightly damp patch near the living room window. I live in a building that’s been around for over 20 years, so I suppose I shouldn’t have been surprised, but seeing that dark, persistent watermark on the wallpaper really started to gnaw at me. Whenever it rains, I find myself checking the floor near the sash like it’s some kind of ritual. I kept wondering if I needed to replace the entire window frame, which sounds like a massive, expensive project, or if I could just get away with patching the silicone. It’s the kind of thing you search for at 2 AM, reading forum posts from people in similarly old apartments who are just as confused as I am.
Trying to DIY the silicone job
I eventually convinced myself that a few tubes of industrial-grade silicone would solve everything. I bought a couple of cartridges—each one was about 15,000 won—and a caulking gun. I thought the hardest part would be applying the bead cleanly, but actually, it was the preparation that nearly broke me. Trying to scrape off twenty-year-old, hardened silicone from the exterior ledge while leaning out the window at the fourth floor was, frankly, terrifying. I didn’t have a professional harness, just a shaky hand and a lot of nerves. My back was sore for three days, and I’m still not convinced I did a better job than the guys who come to the apartment complex occasionally to do the bulk sealing for the whole building.
The communal repair talk
Around the time I was halfway through my living room window, our apartment rep mentioned something about doing a collective contract for exterior sealing during the next scheduled painting work. It was supposed to be cheaper to do it all at once through the management office rather than everyone hiring their own contractors. I felt a mix of frustration and relief. I had already spent an entire Saturday sweating over my own windows, and here they were talking about a standardized approach that would have saved me the trouble. But then again, knowing how slow building maintenance can be to get moving on these things, I’m not sure if I would have been willing to wait for them to finish the paperwork and bidding process.
The humidity that won’t go away
Even after patching up the gaps, there’s this lingering sense that the real problem is the age of the building itself. My bathroom silicone has these dark spots that just won’t scrub off, no matter how hard I try with the specialized pens or the chemical sprays. I keep thinking about buying one of those smart food waste dryers to keep the kitchen smells down, just to feel like I’m at least controlling something in this unit. It’s strange how one small leak makes you start inspecting every single corner of the house—the bathroom tiles, the balcony ceiling, the drafty bits near the floorboards. I’m still not 100% sure if the rain will leak in during the next storm. I’ve put down some newspaper just in case, but that feels more like a nervous habit than an actual solution.
Living with the uncertainty
I spent perhaps four or five hours in total on the actual application, excluding the hours I spent researching which brand of sealant holds up best against the sun. There’s a quiet dread that comes with living in an old apartment—the feeling that if you don’t keep an eye on these things yourself, the building will just slowly unravel. I don’t think I saved a huge amount of money, considering the cost of the materials and the amount of ibuprofen I had to take afterward. Next time, I think I might just pay the pros, even if the timing is inconvenient. At least then, if it leaks, I’d have someone to call instead of just staring at the wall and wondering if I used the wrong shade of silicone.

That feeling of being completely stuck in a loop with a small repair is so relatable. I had a similar obsession with my kitchen backsplash a few years back – the constant worry about moisture damage always seems to creep in.