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How to Remove Moss From a Roof

Lowe's Editorial Team

By Lowe's Editorial Team
Published February 9, 2025

Moss growth on your roof can be unsightly and potentially harmful. If not addressed properly, it can trap moisture and lead to shingle damage, wood rot, and leaks. Learn how to remove moss on a roof with step-by-step instructions.

Tools and Materials

Tools

Materials

Preparations

Before starting the roof moss removal process, follow these safety instructions for the best results. 

Safety Measures

  • Always prioritize safety when working on your roof. Wear sturdy shoes with good traction, a safety harness if necessary and protective eyewear
  • Use a sturdy ladder that extends at least three feet above the roofline. Ask someone to help stabilize the ladder. 
  • Avoid working on your roof during inclement weather, such as rain, snow or high winds. 
  • Spread tarps or plastic sheets around the base of the roof to catch falling moss and protect your plants.

Caution

Ensure the ladder is placed on an even surface to prevent mishaps.

Examination

  • Check the roof for moss-covered areas, loose shingles or structural damage.
  • Determine the severity of the moss growth. A light dusting may require less aggressive methods than a thick, established growth.
  • Avoid walking on weak spots to prevent accidents.

Common Mistakes to Avoid

  • Avoid high-pressure washers, as they can damage shingles and force water under them. 
  • Scrubbing too hard or aggressively can wear down shingles. 
  • Always use a harness and ladder stabilizer for safety. 
  • Without preventive measures, moss will quickly return. 

Instructions on How to Remove Moss on a Roof

Removing moss from your roof is essential to maintaining its structural integrity and curb appeal. Here’s how you can do it. 

Physical Removal

  • For light moss growth, use a long-handled soft-bristle brush to sweep away the moss gently. 
  • For heavier infestations, use a stiff-bristled brush (attached to a pole for safety) to scrub the moss away.  
  • To avoid lifting or damaging shingles, brush in a downward direction. 

Caution

Be gentle while scrubbing or sweeping to avoid damaging the shingles.

Apply Moss Cleaner

  • Use a moss remover or a homemade solution made of 1 part white vinegar and 1 part water. 
  • Pour the solution into a spray pump or applicator. Evenly spray the moss-covered areas, ensuring full coverage. 
  • Allow the solution to soak for 15–30 minutes. This will loosen the moss and kill its roots. 
  • You can also use baking soda. Mix baking soda with water in a 1:1 ratio to form a paste. Use gloves and apply the paste to the moss, letting it sit for several hours before rinsing.

Rinse and Cleaning

  • Use a garden hose with a spray nozzle to rinse off the moss and the cleaning solution. 
  • Start at the top of the roof and work your way down to prevent water from seeping under the shingles. 
  • Collect the fallen moss and debris from the tarps. Dispose of it properly to prevent moss from spreading to other areas of your yard.

Tips to Prevent Further Moss Growth

  • Prune nearby trees to allow more sunlight to reach the roof and reduce shade. 
  • Remove leaves and debris from gutters to prevent water build-up, which encourages moss growth. 
  • Attach zinc or copper strips along the ridge of the roof. Rainwater washing over these metals can reduce moss growth. 
  • Inspect your roof annually for moss, debris or damage. 
  • To reduce moisture buildup, make sure the attic is receiving proper air ventilation. 

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