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Old 08-13-2016, 11:28 AM   #1
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Small hole in Rubber membrane

I have a small hole (about 2 inches) in the rubber roof membrane. (I think I lost a fight with a tree somewhere along the way.) Currently, it has some duct tape on it, but I plan on repairing it with Eternabond Leak Repair tape.

The question I have is this:
Should I put something underneath the membrane before I place the repair tape on the top? Sort of a backing?

Otherwise, I can see the leak repair tape attaching to the actual roof. I don't know if that would be a good thing, bad thing, or no difference thing.

What do you think?
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Old 08-13-2016, 11:53 AM   #2
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Being you used duck tape clean the adhesive residual off really well.

Then just use a piece of eternabond tape. The key thing with eternabond, is not to stretch it. No backer is needed. If it's just a slit, just pull it together before taping.
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Old 08-13-2016, 12:04 PM   #3
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I don't think you need a backing and I might even consider using some lap seal under the roof around the opening as backup. I would also lap seal the edge of the Eternabond tape.
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Old 08-13-2016, 12:09 PM   #4
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I wouldn't bother with the backing, just cover it at least 2 inches on all sides. If you look at the roof membrane it is not thick and there is nothing under it.

The Eternabond tape is thicker than the membrane.
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Old 08-13-2016, 07:58 PM   #5
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Quote:
Originally Posted by norty1 View Post
I wouldn't bother with the backing, just cover it at least 2 inches on all sides. If you look at the roof membrane it is not thick and there is nothing under it.



The Eternabond tape is thicker than the membrane.


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