And while Im at it I wanted to restore the kitchen sink window. Its an old double pane casement of unknown vintage. All wood with real spring metal weatherstrip, glass is etched "Thermopane (R)" which I guess was a brand at some point. This is the window that we had water leaking in from the ice dams two years ago. The lower rail of one window was starting to rot (not sure what you call it on a double glazed window, the piece of molding where the putty would be had popped out), all the weatherstrip was panted shut and the inside of the jamb had never been painted at all.
Now that Ive starting reading old window threads I find out that the jambs are not supposed to be painted! Oh well live and learn, at least in these casements the window doesn't slide against the jamb like a double hung. I did leave all the places there the window would touch the jamb only primed to reduce sticking. Someday I hope to replace these casements with proper double hungs that match the house better anyway. ]
So I pulled it out, stripped the paint from the windows and all hardware, glued the bad moulding back in with geocell and small nails, repainted and put it all back together. Seems to work good as new now and the old weatherstrip actually seals it. No more leaks.
Sash out, painting the jambs...
One sash before refinishing