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Old 11-21-2020, 03:38 PM   #1
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Another Roof Edge Failure Video

Here's another roof edge failure video from AZ Expert:

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Old 11-21-2020, 04:05 PM   #2
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I was going to post this one today, as well. It's a good video full of lots of good info for Winnie motorhome owners with fiberglass roofs. Especially details about what happens with the WBGO recommended Manus Bond 75 sealant over time on the roof radius channels.
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Old 11-21-2020, 04:36 PM   #3
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Thank for the video!

I just used GeoCell "ProFlex" Clear to re-glue my roof radius, but now I want to go one step further.

I just post these questions on the YouTube Channel to see what the AZ Expert thinks, but if anyone has already tried one of these additional methods, please let us know what results you are getting?

So if GeoCell "ProFlex" Clear is the adhesive of choice these days... what can I PUT ON TOP of the ProFlex Clear (like a top coat) that will give it more protection from UV sun damage, and keep my roof radius maintenance free for 5+ years?

Specifically, what do you think will stick to ProFlex that has better UV protection properties than ProFlex? For example: After I glue the roof radius with ProFlex and let it dry: A) How about running a bead of 100% Silicon Clear on top? ...Or B) Tape and spray Flex Glue Clear over the ProFlex? ...Or C) Topcoat the ProFlex with black or white 1/4" butyl tape? I'm posing these questions, because it seems like the UV rays are breaking down the urethane (or hybrid) sealants so if you top coat the ProFlex it will last longer. What do you think?


Note: My concern has to do with chemical reactions between dissimilar sealants. I.e., if you top coat using a solvent based sealant/caulk/paint... will that break down the ProFlex?

This maybe why they recommend using latex paint over caulk. IDK? The problem with paint is that it is brittle and I know that roof radius skin needs to move somewhat in the roof channel. So if GeoCell FlexPro is the sealant of choice that covers adhesion and flexibility concerns... What more can be done to protect it from the damaging UV sun rays?

I think the best UV protection is paint and/or rubber compounds and then 100% silicon. So I wonder if using a butyl tape or Flex Seal Clear a better option than top coating the ProFlex with silicon... for the expressed purpose of achieving a maintenance free roof for 5+ years instead of 2-3 years like what I'm doing now?
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