I live in Ontario, I also have proper winters. It's not so much the plastic windows I bought than the ones previous owners did.
The argon seal eventually fails with enough cold/hot cycles, or wear on the silicon seal, etc.
If you're a diligent homeowner, you probably minimize the temperature cycles and take care of the seals, they might last 25-30 years (especially if it's good quality units).
If I'm buying a new window I want something that I can repair and maintain for a long time. So it's wood frame for me, and specifically a rot resistant wood species if possible (not old growth, unless it's reclaimed)
I live in Ontario, I also have proper winters. It's not so much the plastic windows I bought than the ones previous owners did.
The argon seal eventually fails with enough cold/hot cycles, or wear on the silicon seal, etc.
If you're a diligent homeowner, you probably minimize the temperature cycles and take care of the seals, they might last 25-30 years (especially if it's good quality units).
If I'm buying a new window I want something that I can repair and maintain for a long time. So it's wood frame for me, and specifically a rot resistant wood species if possible (not old growth, unless it's reclaimed)