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Old 08-13-2022, 12:54 PM   #1
SFI
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Brand: Thor Motor Coach
State: Pennsylvania
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THOR #27670
TPO coming unglued...

The TPO membrane on my '18 ACE appears
to be "delaminating" or becoming unglued in a couple of corners of the roof. No leaks apparent. Have reinforced side seams all around with eternabond. Anyone have a similar experience? Recommended fix?

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Old 08-13-2022, 04:18 PM   #2
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I was under the impression that the TPO membrane isn’t bonded to the roof structure. Are you sure it is defective?
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Old 08-13-2022, 04:41 PM   #3
SFI
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THOR #27670
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Originally Posted by Pete'sMH View Post
I was under the impression that the TPO membrane isn’t bonded to the roof structure. Are you sure it is defective?
Not sure, but there is a little space between the membrane and the deck.No leaks and it all feels solid. Maybe nothing to worry about.
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Old 08-13-2022, 04:58 PM   #4
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Model: ACE 27.1
State: Florida
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THOR #7035
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Originally Posted by SFI View Post
Not sure, but there is a little space between the membrane and the deck.No leaks and it all feels solid. Maybe nothing to worry about.
As long as the edges are sealed you are good.
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Old 08-13-2022, 05:08 PM   #5
SFI
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Brand: Thor Motor Coach
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THOR #27670
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Originally Posted by 16ACE27 View Post
As long as the edges are sealed you are good.
They are solid. Even more
so now as I taped
with eternabond. Thanks for the reply!!
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