Andersen oval condensation
I have a number of Andersen casement windows with the classic oval condensation on the inside of the glass. Note I mean inside the house not between the panes. I ran a straight edge along the glass and it is clear that the glass in the middle is collapsed towards each other. Also surprising how much the temperature varies from the edge to the center of the glass on my ir thermometer. I turned down the humidifier to stop the condensation. But I would like to fix the windows.
From what I understand the fix is too drill a hole in the frame to let air in to the space but how is the frame sealed afterwards? Seems like I can drill a hole as well as the next guy so considering fixing this myself. Anyone out there with experience or know about the process that can walk me through it?