Condensation on Windows!!
Recently we had a unusual dip in temps to well below freezing about 10-15 degrees F at night. The next day my wife noticed condensation when opening the windows. It seems to occur on the bottom frame with some noticable freezing and there seems to be more condensation on the windows with aluminum or metal framing. The plastic or vinyl or fiberglass(Not sure exactly the materials) seem to have only a bit of condensation.
Why is this happening? Is it simply a humidity issue in the home? Is it just a given this will happen since the temp difference is over 50 degrees warmer indoors? Or is it because the aluminum/metal framing creates a type of conductor for cold air? I keep thinking it's the latter mostly because this is happening on the windows with metal frames and the fact that there is such a significant difference between warm and cold temps. I also observed NO..NO condensation whatsover on the the front door window, which could also point to solid insulation from the outside.
My main concern here is this is happening on windows that do not have a weep hole and in particular this is on one window that is a very thin double pane aluminum frame that that is surrounded by drywall.