Eternabond tape is great, and stronger than the original roof material. Have used in on several roof tears over the years with no problem and carry a roll with us just in case. Easy to use, but once you put it down, it is down. Don't understand exactly what you are experiencing with your roof, so no comment without greater detail.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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