I have an aluminum clad casement window (actually a double window). I'm
told that the kind I have new has a nailing flange that is nailed from the
outside. The siding overlaps the nailing flange.
QUESTION: Lets say I wanted to replace the window. Would PROPER replacement
of this type of window involve removing the siding and then removing the
entire old window frame and installing the new window into the rough
opening? Some home repair service told me that replacement could be done
without removing the siding by cutting out part of the old frame and
slipping the new window in. (not his exact wording) Is that really the
BEST way to replace a window, or does the best way involve removing the
siding and installing a new window into the rough opening ? My biggest
concern is water intrusion since this is at the side of the building, and
I've had that problem before.