I've thought about polyurethane, but how's the flexibility long-term? I had a window frame sealed with something similar a couple years ago, and it se...

Interesting to hear silicone seals worked so well for you. I tried foam tape last winter, and while it helped a bit, it definitely didn't hold up as w...

Yeah, I gave the candle trick a shot last winter, and it was pretty eye-opening. Found a couple spots I wouldn't have guessed were letting in cold air...

Interesting to hear acoustic windows made such a difference for you. I've been skeptical myself—always thought heavy curtains would do the trick. But ...