Refrigerant pipe wrap


I want to cut some plugs to put under some flashings on a metal roof where the peaks and valleys are open. Then caulk the dickens out of them. Can I use some of that refrigerant pipe wrap? I've seen it on stuff that has been out in the weather for a long time, and it seems to be in decent shape. This would be under the flashing, and protected from UV, and, if sealed, water.
Other alternate suggestions?
Steve
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Steve B wrote:

that fits the shape of the sheet metal.
TDD
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