I want to remove a fogged double pane glass from a single hung window. It is the top unit of the window and is fixed.
I cut off the vinyl glazing stops on exterior of windows, exposing the pane glass unit. But from inside the house there are 2 horizontal aluminum strips which are part of the window frame, one located on top, and other located on bottom. The glass is glued to the aluminum stops with silicone.
I am unable to separate the glass from the aluminum strip by inserting a putty knife or sharp blade. Are there any suggestions on separating them without deforming the aluminum strip as it seems to be part of the frame?
Here are a couple of pics showing the horizontal strip.