From inside the house, raise the window approximately 4″ (if you do not raise the window damage to the sill damn can occur), push in on sliders on top of sash, pull towards your body then the screen can be removed.
From inside the house, raise the window approximately 4″ (if you do not raise the window damage to the sill damn can occur), push in on sliders on top of sash, pull towards your body then the screen can be removed.