Step 7 Caulk the outer perimeter of the Shutter frame where it contacts the wall to create an air tight seal with the building.
Step 5 Next, attach the Top Shutter's Flap Seal to the top Horizontal Rails.
Step 3 First, slide a Hinge Spacer down each inner track of the Vertical Rails. Then slide both hinges of a Shutter down the inner track, so that the Shutter is now resting on the two Spacers. Continue this process for all 4 Shutters in each unit. No Hardware!