Maintenance Guides / Exterior & Structure

Apply zinc strips for moss prevention

Difficulty: moderateTime: 90 minsEst. Cost: $50 - $150

Why it matters

Long-lived moss/algae prevention in PNW/SE; zinc runoff inhibits growth below.

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How to do it

  • 1

    Safely access roof with fall protection and proper footwear.

  • 2

    Clean roof area along ridge line.

  • 3

    Position zinc or copper strips along the ridge per manufacturer spacing.

  • 4

    Secure strips with roofing nails through pre-drilled holes.

  • 5

    Seal nail heads with roofing sealant.

  • 6

    Allow strips to weather naturally; zinc runoff inhibits moss.