I live on the West Coast of Florida and all my windows have a window sill that protrudes out about 1″ – 3″?
One solution would be to mount the panels horizontally across the window opening. The panels would have to be mounted with a 2″ x 2″ studded angle on both sides or directly mounting the panels to the wall. If your opening is 39″ (width) by 52″ (height) just switch the dimension to 52″(w) x 39″ (h). You will need 5 panels to cover 52″. We recommend adding 6″ – 8″ to the length when installing horizontally. If you want to mount the track on the window sill, we can reverse the screws on the 2″ x 2″ studded-angle. An alternative solution would be to mount a 2″ x 2″ angle to the back of a 2″ x 2″ studded angle using Tek screws.
