Summary: 2 Slip the new window insert into place to make sure it fits Then remove it and lay a bead of polyurethane caulk along the inside of the blind stop and the backside of the window stool 3 Rest the bottom of the replacement window on the sill and tilt the window into place against the blind stop If your window includes a head expander position it over the top of the jamb
Image Dimensions: 390 x 474
Image originally found here.