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Keeping window glass dry: what actually works?

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Posts: 16
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(@cheryl_miller)
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Here’s what I did to cut down on that annoying water pooling on my sills every winter. First, swapped out the old single panes for double-glazed units—honestly, huge difference. Then, I made sure the seals were tight and added a trickle vent (was skeptical but it helps). Finally, I run a dehumidifier nearby when it’s super cold. Anyone else got tricks I’m missing? Maybe there’s a better window type or some hack I haven’t tried?


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environment_jon
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(@environment_jon)
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Not sure I’m totally sold on trickle vents, honestly. I tried adding them a couple years back and didn’t notice much difference—maybe my house is just too drafty already? What really helped here was using thermal curtains at night. They cut down on condensation, plus they keep the room warmer. I’ve heard some folks swear by triple glazing, but that seemed like overkill (and way out of my budget). Curious if anyone’s had luck with window insulation film... I’ve thought about giving it a shot, but always wondered if it’s worth the hassle.


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ashleycyclotourist
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(@ashleycyclotourist)
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- Totally with you on trickle vents—mine just made the room colder, not drier.
- Thermal curtains do more than I expected, especially in our old drafty place.
- Tried the window film last winter. It helped a bit with drafts, but putting it on was kind of fiddly and I managed to wrinkle half of it... Still cheaper than new windows though.
- Triple glazing? Yeah, my wallet started sweating just thinking about it.


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collector87
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Here’s what’s worked for me, step by step:
1. Squeegee the windows in the morning—takes two minutes, makes a difference.
2. Stick a cheap dehumidifier near the worst window. Doesn’t need to be fancy, just enough to suck up some moisture.
3. Close thermal curtains at night, but open them during the day so the sun does its thing.

Tried window film once too... got more bubbles than insulation, but hey, it helped a bit. I’d skip trickle vents unless you like chilly toes. Triple glazing? Only if you win the lottery.


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Posts: 16
Topic starter
(@cheryl_miller)
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Title: Keeping Window Glass Dry: What Actually Works?

Squeegeeing in the morning is a solid move—my parents used to do that in their old place, and I never really got why until I had my own condensation problem. It’s less hassle than dealing with mold down the line, that’s for sure.

I hear you about window film being a pain. Tried it once in my rental before I bought this place and ended up with more wrinkles than actual coverage. Maybe I just don’t have the patience for it, but honestly, didn’t notice much difference except the windows looked weird.

Thermal curtains are underrated. Mine aren’t fancy—just thick blackout ones from IKEA—but they help keep the cold out at night. I always open them up first thing in the morning to dry things out. If you keep them closed too long, seems like the moisture just hangs around.

Trickle vents are a bit divisive, yeah. I was suspicious too but figured some airflow is better than none, especially when running a gas heater inside. I do get a bit of a draft sometimes, but it’s not awful. Still, if you’re in a really cold spot, I get why people skip them.

I’ve looked into triple glazing but the price is wild. Unless you’re doing a full reno or building new, doesn’t seem worth it just to fix condensation. Double glazing plus dehumidifier has been enough for me so far, though I still get a bit of water on the coldest mornings.

One thing I noticed—if you dry laundry indoors, it makes everything worse. Had to start using the dryer more in winter, even though it’s not ideal for the bills.

Anyway, sounds like we’re all just patching together fixes. At least it’s better than wiping windows every hour…


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lindaexplorer589
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Yeah, squeegeeing is one of those old-school tricks that actually holds up. I’ve seen folks try to shortcut it with all kinds of fancy sprays and gadgets, but nothing beats a quick swipe in the morning. Still, after doing window installs for years, I gotta say—if you’re getting puddles, it’s usually a combo of indoor moisture and cold glass. You nailed it with the laundry thing. I had one customer who’d hang wet towels in the living room all winter... they basically had a rainforest in there.

Window film is a pain, no arguments here. If you don’t get it perfect, you end up with more bubbles than benefits. I’ve only seen it help a little on single glazing, and even then, it’s not magic.

Thermal curtains are solid, but like you said, gotta open them up or it’s just trapping the damp air. Trickle vents can help, but yeah, drafts are the tradeoff—especially in older houses that already leak air like a sieve.

Triple glazing is great if you’re building new or have cash to burn. For most people, double glazing plus a dehumidifier and some common sense with ventilation does the trick... at least enough to avoid wiping every hour.


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Posts: 22
(@joshuacosplayer)
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You’re spot on about the squeegee—sometimes the simplest method just works. I’ve tried a few of those sprays and honestly, they never made much difference for me. The biggest change came when I finally caved and bought a small dehumidifier. Not cheap, but it keeps the condensation down way better than anything else I’ve tried. I do think thermal curtains help at night, but like you said, if you don’t open them in the morning, it just traps all the damp air against the glass. It’s a balancing act. Never had much luck with window film either... felt like more hassle than it was worth.


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decho65
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(@decho65)
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Funny you mention the window film—tried that one winter and ended up with more static cling on my arms than on the glass. It was like wrestling a giant piece of cling wrap. Total pain, and honestly, didn’t notice much difference except for the windows looking a bit hazy.

I agree about the dehumidifier being a game changer, though. Mine’s not exactly a looker, but it hums away in the corner and I swear the windows don’t drip nearly as much now. The only downside is emptying the tank every other day... learned that the hard way after forgetting for a week and finding a mini swamp in there.

Thermal curtains are hit or miss here too. I love how cozy they make the room at night, but if I forget to pull them back in the morning, it’s like opening a rainforest. If only there was a gadget that could just do all this for us—until then, I guess I’ll stick with my trusty squeegee and hope for drier days.


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dobbyastronomer
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Window film was a total letdown for me, too. I tried it last December, and honestly, I spent more time smoothing out air bubbles and fighting off static than actually seeing any benefit. My windows just looked cloudy after, and the condensation was still there in the mornings. Not worth the hassle.

Dehumidifier is the only thing that’s made a noticeable difference in my place. It’s not pretty, and the tank fills up stupidly fast if I forget to crack a window now and then. I did the same thing—left it for days and ended up with this gross, musty smell. Now I just empty it every night before bed, kind of like brushing my teeth at this point.

Thermal curtains, I’m on the fence. They’re great for keeping the heat in, but if I leave them closed too long, the windows get all sweaty. It’s like trading one problem for another. I actually think just opening the windows for ten minutes every morning helps more than anything else, even if it means a quick blast of cold air. Old-school, but it works.

Honestly, if you’ve got old single-pane windows like I do, nothing’s going to be perfect unless you shell out for new ones. I’m not ready to drop that kind of cash yet, so for now it’s the dehumidifier, cracking the windows, and a towel on standby. The squeegee thing is smart, though—might have to add that to my routine.


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Posts: 14
(@ryanscott117)
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Window film rarely lives up to the hype, especially on single-pane. It’s more of a bandaid than a fix—condensation's a ventilation and thermal break issue, not something a bit of plastic can solve. Dehumidifiers do help, but like you said, they’re a pain to empty and can’t fix cold glass. Honestly, the only thing that truly works is upgrading to double or triple glazing. Not cheap, but it’s a one-and-done solution. Everything else is just managing symptoms. I get not wanting to shell out for new windows though... lived with towels and squeegees for years myself.


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