How often should you re-coat a rubber roof?

[pappyrsg]

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.

[justimagination]

From your description, leave well enough alone. When you look through these post's about RUBBER ROOF'S, you will see that all of them for the most part , have had problems @ one time or another.

Seams @ front & rear cap's are the most prone, since there is a lot of flexing in a motorhome. The previous owner must have done it correctly. Good luck.
David G.

[pappyrsg]

Thanks David. I'm leaning in that direction. I may just clean the roof well in the 'seam'' area and add another stripe of coating there... just for insurance.