Years ago, actors Robert Wagner and Jill St. John contacted Joe Zappone about having copper shingles installed on their roof. “Jill and I got along good on the phone,” Zappone recalled, “but Robert ...

Waste from Upper Michigan's copper mines is a treasure for area roofers who can use stamp sand to make cheaper shingles from recycled material. Ralph Hodek, an associate professor of civil and ...

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