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Discussion Starter · #1 ·
I just bought a roofing anchor designed to install on the peak of the roof. It's two hinged plates (maybe 10 inches long) with screw holes on the plates with a D ring at the peak.

Can I install over existing ashphalt shingles?
Do I need to somehow find a joist to screw into?

When I remove the anchor when done, should I plug the holes somehow to avoid water seepage through the roof? If so, what should be used?
 
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