Wrinkled tape may contribute to leaks in the system. You use the ZIP System tape gun roller to ensure the tape is sealed. If the tape is already adhered and difficult to remove, simply use the roller on the tape gun and apply as much pressure as needed to make certain the tape is secured to the panel, particularly around the tape edges. ZIP System tape roller is specially designed for ease of tape application. Roller not only makes tape application fast and easy, it also provide a high quality tape seal. Use in conjunction with the zip tape gun (sold separately). ZIP System tape roller will flatten any air pocket and activate the tape adhesive to bond completely with the ZIP System panels