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Old 06-24-2016, 07:05 PM   #1
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Did I ruin my roof?

So I had a small skip in the seal above my bathroom skylight on my 2015 175BH Baja that needed to be touched up... Bought some Dicor lap sealant to fix...

Followed this video to the "T" and I guess something screwed up...



My TPO roof BARELY got any mineral spirits on it and what was touched, I cleaned with a water soaked rag afterwards...

Put my sealant on and let it sit overnight...

Came back the next day and there was a small bubble under where I put the lap sealant! It's about 1" x 1"...

Reading other forums and what not, I guess mineral spirits was a huge mistake and eats away at the adhesive underneath... Is the membrane okay though? Did the mineral spirits screw up the TPO membrane? Can I just cut a small slit in the roof, apply adhesive and cover?

I will NOT be following those damn video's anymore that's for sure...

Please help!

EDIT: By the way, I can live with a bubble but I cannot live with a leaky membrane!
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Old 06-24-2016, 07:17 PM   #2
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I did not see anything on that video on TPO roof repair?
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Old 06-24-2016, 07:25 PM   #3
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Yes, I was looking for a way to clean before applying lap sealant. The video said to use mineral spirits to clean the area to be sealed... I literally let it dry for over 2-3 minutes before wiping the area with mineral spirits and THEN I washed it with a clean water rag...

The video wasn't for repairing the roof but for sealing...
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Old 06-24-2016, 07:26 PM   #4
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I did not see anything on that video on roof sealing on TPO material.
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Old 06-24-2016, 10:45 PM   #5
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Mineral spirits is fine. Dicor is fine. You're all good. Don't sweat it. You should have the Diflex II TPO roof. You CAN clean the old sealant with mineral spirits. Just don't soak the roof with it and leave it. The bubble will probably go away in a day or two. If you saw the stuff I did with my roof you really wouldn't worry.
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Old 06-25-2016, 03:12 PM   #6
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Quote:
Originally Posted by Neo1130 View Post

I will NOT be following those damn video's anymore that's for sure...
The video was about cleaning and repairing Dicor sealant cracks not about repairing the roof membrane. Additionally, the narrator specifically says the RV in the video has a fiberglass roof and at minute 2:00 specifically says not to use mineral sprits on a membrane roof.


However, I doubt you did any lasting damage to your roof and I wouldn't lose any sleep over it.
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Old 06-25-2016, 03:18 PM   #7
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Me neither! Chalk it up as a learning experience that did not cost you any money!!
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Old 06-25-2016, 08:45 PM   #8
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Thanks for the reassurance guys... I didn't quite watch the video word for word and that's on me...

I did notice the pressure inside the bubble is greatly reduced after a couple days! I put some pressure on it overnight and we will see in the morning if it sticks down...
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Old 06-26-2016, 09:05 AM   #9
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Some use acetone, mineral spirits or denatured alcohol. Dicor themselves actually mentions using a few of them. Usually denatured alcohol. It's about the only way you'll get crappy Dicor 501 clean. If you get a little on the roof, it's not an issue, it won't hurt it. I don't have to deal with the Dicor anymore. Got tired of the continuous touch up and cracking.
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Old 06-27-2016, 06:48 PM   #10
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I don't have to deal with the Dicor anymore. Got tired of the continuous touch up and cracking.
I did you stop dealing with Dicor? What did you switch to?
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