Roofing shingles treated with 3M Scotchgard Protector are designed to resist stains from algae by releasing small amounts of copper.
Roofing shingles treated with 3M Scotchgard Protector are designed to resist stains from algae by releasing small amounts of copper.

Ugly black streaks on roofing shingles are a familiar eyesore for homeowners, and contractors who know how to prevent the problem will have a competitive edge. That, at least, is the thinking behind the program, a partnership between 3M, Atlas Roofing, Malarkey Roofing Products, and Pabco Roofing Products. Contractors who take part in the program will become "sales specialists in advanced granule coating technology," says 3M, and learn how to prevent the problem with shingles that feature Scotchgard Protector. "Knowing exactly how to talk about a roofing technology like copper containing granules can give a contractor a leg up, and helps them instantly add value in the eyes of their customers," said Brian Findlay, general manager of 3M's Industrial Mineral Products division. Contractors interested in participating should contact a local sales managers for a participating shingle manufacturer that uses Scotchgard Protector.

Read more >