Hi everyone, I know this is a coal burning forum, but people on here were such a great help w/ my VF3000 install, I figured some of the same folks would have good insight for a fellow coal burner who became a 1st time home owner almost a year ago.
When the temp outside starts to drop, my casement thermal pane windows all start to form condensation on the room side. The windows are HURD, manufactured in 1994 and installed in the house during initial construction in 1996. I have one of those programmable t-stats w/ a humidity gauge that usually reads between 20-30 % RH all winter, yet the windows still sweat. Bathroom windows sweat more, master bath does not have exhaust fan, going to install one in the near future. I just wondered what gives, at first I thought maybe the seals where they crank shut need replacing, but the sweat forms on windows that don't crank out as well. Sweat is Most prevalent on the bottom surface, wood is beginning to surface rot and paint (circa 2007 I think) is chipping.
Do older thermal pane windows not have thermal breaks in them like the ones you buy today? It seems like there is condensation on them all winter, I was thinking of just drying them out real well and applying some glazing to stop the wood from rotting.