On Aug 1, 7:20*pm, wrote:

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asphalt seems hard to find anything that will
bond with it,

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Would anybody have any advise on how I could stop the water flow?
Would the flashing work, a good adhesive, another idea, I'm open .

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Whether it would help you or not, I can't say, but you may want to
consider an epoxy. Many systems are known to be compatible with
asphalt, and are much used for highway projects. Good luck.

Joe