Interesting you mention condensation—did you ever try running a dehumidifier alongside the shrink film? In my experience, the film helped with drafts ...

That’s the tricky part with old houses, for sure. I’ve had to shim and re-check level so many times, especially when the framing’s settled over decade...

Funny thing, I’ve seen more mold on window sills in “updated” homes than in old drafty ones. My theory—those older leaky windows let enough air throug...