How often should you re-coat a rubber roof?
Just wondering... we have a 97 Sea Breeze with a 'rubber' roof that has been re-coated with 'elastomeric' coating, last time being about 18 months back by the previous owner. He did a pretty good job. I don't know what brand coating he used. The roof does not leak at all and looks good except for a few 'bubbles'... one solid 'sheet'. There are NO cracks, wrinkles, etc. The coating at the bubbled areas looks and feels fine, aside from the fact that it's 'bubbled' up. The bubbles includes a dozen or so small ones (1" x 1") scattered around, 3 mid-size ones (1" x 6 ") clustered in the rear area, and a row of small ones across the roof where the front cap meets the main roof above the back of the front seats. Based on what I know and have been told about flat roofs (I'm from AZ) and National RV's, the bubbles are due to insufficient cleaning prior to the last re-coat, or movement in the seam at the back of the front cap. Again... no leaks, no sign of ever having a leak.
Should I re-coat again now, or just keep an eye on it? If I re-coat now, should I dive into the bubbles or not poke the bear? Feedback?
Thanks in advance.