I have a 1996 25 foot camp trailer that has a rubber roof that needed coating. I did a lot of research before deciding on Liquid RV Roof. I already know that EPDM roofs are great and I was very happy when I found this product. The trailer roof had just a few very small holes and one small tear at the edge about 1-inch long. I washed the roof with a high pressure hot water washer and a great degreaser. Almost all of the old coating came off. I chose not to patch or reinforce any of the small holes. I opened and mixed the Liquid RV Roof product as per the instructions. With a friend to help me, we began to apply the thick mixture. It was a breeze to apply. Having a squeegee and roller is key. We applied on a nice cool day at about 70 degrees. We chose to do it in a location free from trees and debris. We applied about three gallons to the roof. (I bought 5 gallons…oops should have measured…not guessed) It only took about 1.5 hours to complete the application including doing the edges with a brush by hand. It took about 72 hours for the wrinkles to flatten. The small tear and pin holes were coated perfectly and sealed great.