Summary: frame and discard it Remove the top sash cut the sash cords and take out the sash weight pulleys Remove the sash weight cover and weights Stuff the cavity with fiberglass insulation 4 Screw the jamb liner clips to the jamb with no 6 x 3 4 in Pan head screws Position clips about 4 in from the top and bottom and distribute the remaining clips evenly between them Make
Image Dimensions: 390 x 295
Image originally found here.