Forum Discussion

ricskinner's avatar
ricskinner
Explorer
Oct 16, 2014

Rubber Roof Bubbles

We're RV newbies. Our 2011 Coachmen 242RBS has a number of what appear to be long bubbles in the rubber roof. Kind of like where the rubber has detached from the sub-roof. Is this a major problem that should be repaired/replaced ASAP, or just to watch it to be sure no tears develop?
  • I've got them. They seem to come and go and move around.

    Roof has no leaks, so i guess all is good. If I'm walking around up there, I avoid those areas.
  • Mine had the same issue when I bought it. I called around to competing dealers and asked if it was OK. They all agreed it was.
    Bottom line is they are there because of poor workmanship but they wont hurt anything. I can attest to this some 10 years after owning this same TT and all is well.
  • Jayco-noslide wrote:
    I would get it to a dealer ASAP. I don't believe that is normal and I think it means problems.



    You are misled. Bubbles will not cause issues.
  • Jayco-noslide wrote:
    I would get it to a dealer ASAP. I don't believe that is normal and I think it means problems.


    Not true, my last trailer had them and the dealer told me they were fairly normal and not to worry about them.
  • Mine does it to. In the winter when it is cooler they go away. When the weather is hot a few show up. They move around. Was told it is normal
  • I would get it to a dealer ASAP. I don't believe that is normal and I think it means problems.
  • From the Dicor site.

    My roof has air bubbles. Is this normal?
    Typically, if air bubbles occur they occur during or very soon after the roof has been applied. A couple of reasons for the air bubbles would be that they were not broomed out during application, and we ask the installer not to stretch the material during installation to allow for expansion and contraction of the membrane. Air bubbles will occur with weather conditions and humidity. Air bubbles can also occur at the seams of the roof decking due to flexing and twisting that occurs during transit. Sometimes they occur if there is a significant difference in the temperature between the inside and outside of the unit.
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    Will the air bubble effect the performance of my roof?
    No. The air bubbles will not blow up and pop. They will come and go with the weather conditions, humidity, etc. Please do not puncture the air bubbles. Air bubbles mean there is room for expansion and contraction, lessening the chance of stress cracks later.
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