We had leaks! Sudden onslaught this summer.
Had to remove and re-bed all the
windows in new tape. Replaced most of the old seals and did some window frame repairs and glass replacement as well.
Boler windows sound like they are a different setup show some pictures so people can help you.
Now all is dry.
Replaced the vent caps and window weirs 2 years prior due to
leaks.
Many rivets leaked but we have a
boler, got replacement Stanley closed end marine rivets to fix that and replacing them as needed already over 2/3 changed.
Leaks are a problem; again post some pictures of the needed parts and window type. Pictures are best way to get help.