I've wondered about this too. My place is older as well, and after installing secondary glazing in the bedroom, I did notice a bit more condensation o...

I totally get what you're saying about the guesswork... I'm new to homeownership myself and sometimes feel like I'm just hoping for the best. Sounds l...

Yeah, I've been wondering about this too. Just moved into my first place up in the mountains, and the vinyl windows fogging up has been pretty noticea...