The product is a neat idea. One of the things that came up a few years ago on the forum was this------ It appears that they FlexArmor the roof vents and other items except the Roof AC's. IF the top appliances are FlexArmored, HOW to you remove them if they get damaged and the frame and such needs replaced??? Do you have to chisel them out? Which then destroys the advantage of the roof coating. IMO, they should do what ALL roof repairers do---they remove the existing top hardware and FlexArmor the roof and then install the top appliance/Hardware and seal. They can do the job quicker and cheaper if they do not remove all the roof top components. Doug
