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Old 10-19-2015, 09:56 PM   #41
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I knew it was a different install, but the tape did not fail, the panels did due to the install.
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Old 10-20-2015, 06:56 AM   #42
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Quote:
Originally Posted by J Mac View Post
Thanks cpaharley,
It appears in this thread's case the solar panel is flush to the trailer and taped on all four edges, flush to the trailer not off set and taped on just two sides. Different from the solar panels this discussion is about.
That's true, but you mentioned in this post When a solar panel blows off "Zero issues so far but they will one day because 'double back foam tape' dries out. And when it dries out, it releases." The point of Norm's post is the time he has had a solar panel on the roof of his Scamp with no problems with the tape drying out.
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Old 10-20-2015, 11:17 AM   #43
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Quote:
Originally Posted by Donna D. View Post
That's true, but you mentioned in this post When a solar panel blows off "Zero issues so far but they will one day because 'double back foam tape' dries out. And when it dries out, it releases." The point of Norm's post is the time he has had a solar panel on the roof of his Scamp with no problems with the tape drying out.
Thank you for trying to correct me Donna. My first post was "i'll never understand why anyone would install a solar panel using 'double back tape'". I still wonder that. It seems that double back tape, in some way caused a failure in your referenced post as well. I still stand by the fact that foam tape eventually dries out and when it does it releases. Your referenced post has a trailer owner removing his panel after 3 or 4 years. That particular tape, I can only guess, hadn't dried out yet but seems to have come away from the trailer without leaving a mark.
I can only guess that the fact that foam tape fails is the reason that Escape no longer uses it in solar panel installs.
Or, better still, ask FMLNM th OP of the thread "Our solar panel blew off" what he thinks about foam tape.
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Old 10-20-2015, 11:58 AM   #44
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3M has a wealth of applications for their hundreds of tapes - glazing tapes have been holding windows in skyscrapers for decades and semi-trailer skins are taped on now (not riveted.) Closed cell tapes don't "dry out."

3M™ VHB™ Structural Glazing Tapes for Specified Construction
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Old 10-20-2015, 12:19 PM   #45
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3M has a wealth of applications for their hundreds of tapes - glazing tapes have been holding windows in skyscrapers for decades and semi-trailer skins are taped on now (not riveted.) Closed cell tapes don't "dry out."

3M„ VHB„ Structural Glazing Tapes for Specified Construction
Good point. I doubt however the mentioned solar panels in this discussion used the 3M Architectural Panel tape, 3M primers, 3M Adhesion Promoters, or 15psi pressure over entire field with 3M applied Weather Proofing Sealants. But they may have.
Everything eventually "drys out".
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Old 10-20-2015, 12:29 PM   #46
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These applications are weather protected in that the wall or glass seals the tape from the weather whereas on our roof, unless the edges are sealed with proflex, there are exposed edges.
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Old 10-20-2015, 04:25 PM   #47
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All I know is that I don't want to be the defendant in an injury lawsuit because I had something attached to my trailer with tape of any type that failed for whatever the reason. Frankly, I'm glad that ETI recognized a potential liability and provided a fix. I know my panel is not blowing off unless it takes some chunks of fiberglass with it.
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Old 10-20-2015, 05:49 PM   #48
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Quote:
Originally Posted by J Mac View Post
Or, better still, ask FMLNM th OP of the thread "Our solar panel blew off" what he thinks about foam tape.
Not to put too fine a point on it, our panel was installed with epoxy not tape....so we have no opinion on that. However, we do use VHB molding tape to secure the awning tracks for our homemade awnings over the various windows. (Basically the same design as Techfan.) They've been on for 2 years with no problem but I might take a cue from Techfan and run some sealant over the top of each rail to minimize tape degradation. If the tape DID degrade there would be no real issue since the approximately 3 foot x 1 inch plastic awning rails could easily be replaced and would not pose a hazard if they broke loose.
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Old 10-21-2015, 11:41 AM   #49
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The photo you posted in thread 25 of 'our solar panel blew off' shows tape and epoxy.
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Old 10-21-2015, 11:57 AM   #50
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Originally Posted by craiginpetaluma View Post
The panels were mounted low to help reduce wind loading and I will fabricate a front " wind deflector" and " side skirts" and attach with the same 3m tape and sikaflex to maybe help in seeing degradation of the tape and sikaflex.

Overall AM solar is really confident in this approach. By keeping wind from getting under the panels and regular inspections I'm hopeful this is sufficient.
ETI told me that the flying panels happened due to high cross-winds; I can see how that would add "uplift" under a panel that overhangs the crowned center. I learned this after I installed ABS wind deflectors with 3M RP45 tape on the leading edge of my panel.
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