Thanks for the info on maintaining the EPDM roof on my motor home. The original roof was 18 years old. It was not leaking but was getting thin and needed something to restore the integrity of the original roof. Great care was taken to prepare the roof for application of the liquid EPDM. It was applied with a brush and roller. It took about 2 hours to apply the EPDM. This was done in September 2010. I checked the roof today ( June 20th 2011) and it looks as though the EPDM was just applied 5 days ago. I wish that I had taken pictures before starting the project and then after finishing. Thanks for a great product and for the info on maintenance.