Good points about vinyl holding up better than people expect. I was pretty skeptical myself at first, especially since everyone around here seems to swear by fiberglass or wood for mountain homes. But honestly, after seeing my neighbor's vinyl windows survive some brutal winters without cracking or warping, I'm starting to think the whole "vinyl can't handle cold climates" thing might be a bit exaggerated.
That said, I do think fiberglass has some clear advantages—especially when it comes to expansion and contraction. Vinyl tends to move more with temperature swings, which can eventually lead to seal issues if you're not careful. Fiberglass is definitely more stable in that regard, so less maintenance overall. But like you mentioned, proper installation and regular upkeep can make a huge difference with vinyl.
One thing I'd add to your list is keeping an eye on condensation buildup. My sister had vinyl windows in her cabin, and she noticed moisture collecting on the inside panes during really cold snaps. She ended up using a dehumidifier and it helped a lot, but it was still kind of annoying. Fiberglass windows seem to handle condensation better from what I've seen.
Still, if your vinyl windows are doing fine right now, I wouldn't rush into replacing them either. Windows aren't exactly cheap, and if you can squeeze another few years out of them, why not? Plus, heated slippers or a heated blanket sound way more appealing than dropping thousands on new windows right before winter hits...
Speaking of cozy comforts, has anyone tried those window insulation film kits as a temporary fix? I've heard mixed reviews—some people swear by them for cutting drafts, others say they're a pain to install and don't last long. Curious if they're worth the hassle or just another gimmick.
I've used those window film kits a few times, and honestly, they're not bad for a quick fix. Installation can be a bit of a pain—especially getting the wrinkles out—but once they're up, they do cut down on drafts noticeably. Just don't expect miracles or long-term durability. If you're looking to buy some time before investing in new windows, they're worth the $15-20 and an afternoon of mild frustration...plus, you can reward yourself afterward with those heated slippers you mentioned.
Good points on the film kits—definitely handy in a pinch. Curious though, has anyone noticed fiberglass windows holding up better against harsh mountain weather compared to vinyl? Heard mixed reviews about vinyl warping...
I've seen vinyl windows warp firsthand, especially on south-facing walls that get a lot of sun exposure. Fiberglass does seem to handle temperature swings better—less expansion and contraction overall. Had fiberglass installed about five years ago at my cabin, and they've held up great through some pretty harsh winters. Vinyl can still work if you're careful with quality brands, but fiberglass might save you headaches down the road...