3M and Mike Holmes Collaborate to Protect the Curb Appeal of Homes Shingles featuring Scotchgard™ Protector by 3M protect against black streaks on roofs caused by algae, now designated a HOLMES ...
ST. PAUL‚ Minn.--(BUSINESS WIRE)--Unsightly black streaks on roofing shingles are an all too common eyesore for homeowners, but many are unaware of what causes this issue or how to prevent it. To ...
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