But San Jose, California-based GAF Energy thinks it has a simpler ... drive nails through a three-inch nailing strip, overlap the top of that shingle with the bottom of the next one, and repeat.

“What we’ve done is we’ve created a shingle that has solar properties,” said Martin DeBono, president of GAF Energy, which is a sibling company of GAF, a roofing manufacturer with a ...

ach year, some 12 million tons of asphalt shingles, which represent the primary type of roofing in the United States, end up in landfills. Standard Industries’ GAF, whose roofs are on roughly ...