For those that find using a rubber roof sealant that comes in the form of caulking gun difficult, this is the liquid epdm rubber coating for you. It can be applied like paint all over your RV’s roof and can protect a roof against the elements for up to five years. It has a white finish for the ultimate way to deflect the sunlight, but it can also be painted on in just one single coat. Users of this product like that it is a form of liquid EPDM which is often touted as the best type of camper roof coating out there. You can coat 42 square feet per gallon.