1. Leave the Velcro “hook” and “loop” attached to itself so that the release liners are on opposite sides. (Note Velcro is white).
2. With both sides of the Velcro attached to itself, peel the release liner off of one side only and adhere it to the outer edges of the shutter. Trim as needed with scissors. Firmly rub the Velcro in to the shutter to get a good bond. (Note Velcro is white).
3. Peel the opposite side of the release liner off. Attach the piece of insulation (silver side towards shutter) onto the Velcro, leaving an overhang on all four sides. Firmly rub the insulation in to the Velcro to get a good bond.
4. Carefully remove the insulation and separate the Velcro so that one side of the Velcro is attached to the shutter and the other side of the Velcro is attached to the silver side of the insulation. Trim the insulation with scissors around the Velcro. Reinstall the insulation onto the shutter. Remove the insulation when fan is used.