The panels in the failed fiberglass kit were only 22" wide and 60" long and needed a peel-n-stick plastic mount accessory centered to hold it in place. However it drooped and was unsightly.
Step 1: Cleaning preparation and cutting tools.
Step 2: Clean surface. Align. Spray adhesive.
Cut slots for hinges as the barrier insulation is applied and cut off any excess on the roll ends.