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Old 05-11-2015, 10:22 PM   #1
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TPO roof bonding issue

I have a 2008 Fleetwood Southwind with a TPO roof. There are some sections that seem to have air underneath, as though the bonding has failed. Has anyone else had this experience? Any advice on how to fix short of a new roof?
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Old 05-12-2015, 01:02 PM   #2
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This seems to be becoming a common complaint. It's not strictly necessary for every inch to be bounded to the substrate, but it sure speaks to the quality of workmanship when it is not. And a big bubble will lift as you drive at highway speeds, due to reduced air pressure over the roof.

If it bothers you, slit the material and squeeze in some adhesive and glue it back down. Then cover the slit with lap sealant or Eternabond tape.
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Old 05-12-2015, 01:08 PM   #3
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Quote:
Originally Posted by Gary RVRoamer View Post
This seems to be becoming a common complaint. It's not strictly necessary for every inch to be bounded to the substrate, but it sure speaks to the quality of workmanship when it is not. And a big bubble will lift as you drive at highway speeds, due to reduced air pressure over the roof.

If it bothers you, slit the material and squeeze in some adhesive and glue it back down. Then cover the slit with lap sealant or Eternabond tape.
I've seen that happen! Looks funny but I'm betting it eventually stretches the material making it thinner.
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Old 05-12-2015, 01:09 PM   #4
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Small bubbles and underlayment seams showing is totally normal. Large (6 inches or more) bubbles is a problem.
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Old 05-12-2015, 01:13 PM   #5
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Should be no issue. The edges are all held down by edge treatment and there are a number of vents, A/C, etc that it will not take off.

I had some fairly large bubbles on the 5er when we got it. I complained and the company said mark them and if they get bigger they will replace the roof. 10 years later the bubbles were still the same size.
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