need tough windows for cabin in middle of nowhere

"two of my windows cracked. Wasn't even that old, maybe 5 years tops."

Five years isn't much at all, especially for remote cabins facing harsh weather. Sounds like you might've had standard double-pane glass - good for insulation, but not always storm-proof. I'd suggest looking into impact-resistant laminated glass or even polycarbonate glazing. They're pricier upfront but handle flying debris and heavy winds way better. Curious though, did you notice if the cracks started from the frame edges or smack in the middle? Could point to installation issues rather than just material strength...

The frame and sash deserve attention too. Even impact-resistant laminated glass can crack if the opening flexes or the sash shifts under wind load, particularly in a remote cabin with repeated freeze-thaw cycles.

I’d compare fiberglass or reinforced-vinyl frames with multi-point locks, rather than focusing only on the glazing. They generally provide better dimensional stability and distribute pressure more evenly than basic vinyl. Still, the installation matters: the rough opening must be square, the frame properly shimmed, and the glass set without edge pressure. If the cracks began at the frame edges, have the installer inspect those points before selecting a heavier glass package.

I’d qualify the emphasis on heavier fiberglass or reinforced-vinyl frames. For a remote cabin, laminated glass may be less practical if a damaged pane is difficult to replace. An insulated unit with a replaceable exterior storm panel can provide a sacrificial layer against debris and weather, while making future repairs simpler and less costly. The frame and installation still need to handle wind loads, but serviceability matters when access is limited.

For a remote, intermittently used cabin, a replaceable exterior storm panel is worth comparing with laminated insulated glass or polycarbonate on U-factor, solar heat gain, and moisture management.

A few things to check:

- **U-factor:** Lower is better for slowing heat loss during occupied winter use. It matters less while an unheated cabin is vacant, but it can still improve comfort when the cabin is heated.
- **Solar heat gain:** A higher SHGC can help with passive warming on sunny winter days, while a lower SHGC may be preferable where shoulder-season overheating is a concern.
- **Condensation resistance:** This is important when a cold cabin is heated and occupied. Warm indoor air can condense on the coldest pane, frame, or surface between layers.

The panel design matters here. A sealed or poorly drained cavity could hold moisture between layers, while a properly vented and drained exterior storm system may avoid that. It would also be useful to compare whether a low-e coating reduces winter solar gain enough to outweigh its insulation benefit in this kind of seasonal use.