I live in Florida. I have noticed that in the Winter it seems that the cold air leaks through the windows and into the rooms. This, of course, raises my energy bill for heating (yes we have to turn on the heat in Florida sometimes!)
It seems like to me that the air is leaking through where the bottom of the window meets the aluminum frame.
I thought that I could use window frame weather stripping to place between where the window comes down to meet the frame and the frame itself. So essentially, the window would "squish" the insulation and make a good seal.
Is this the preferred method? I have checked the caulking in and around the window. It is definitely not leaking through there and in the Winter I can feel the cold air come through the sill.