Remove Moss From Your Company's Rooftop And Prevent It From Growing Again

5 October 2015
 Categories: , Blog


Moss on your company's rooftop can diminish the building's appearance and damage the shingles. Learn how to safely eliminate moss with the following steps. After you have removed it, install a zinc strip across the top of the roof to prevent moss from growing again.


  • ladder
  • water hose
  • hand rake with flexible tines
  • putty knife
  • industrial strength detergent
  • water
  • garden sprayer
  • long-handled scrub brush
  • measuring tape
  • zinc strip
  • roofing nails
  • nail gun

Remove The Moss And Clean The Roof

Set up a ladder next to the portion of the roof where the moss is located. Spray the moss with a water hose to help soften it. Climb the ladder and use a hand rake with flexible tines to remove it. Gently pull the rake through the moss. If any portions of the moss are difficult to remove, insert the tip of a putty knife under them to assist with loosening them. Fill a garden sprayer's tank almost to the top with water. Add a small amount of industrial strength detergent to the tank. Reattach the tank and carry the sprayer up the ladder.

Squeeze the trigger on the sprayer to dispense the soapy water on the surface of each shingle that was stained from the moss. Wait a few minutes for the soapy water to penetrate. Clean the shingles with a long-handled scrub brush. Spray the roof with a water hose to remove soapy residue that remains. 

Install A Zinc Strip

Measure the length of the top row of shingles. Purchase a zinc strip that is the same size. Many hardware and roofing supply businesses carry these strips. Insert the top edge of the strip underneath the first row of shingles. Gently lift up each shingle and wedge the top of the strip under all of them. Press the bottom of the shingles down. Use a nail gun to attach roofing nails through the center of the strip. Space the nails several inches apart. 

Whenever it rains, zinc that is contained in the strip will stream down the rooftop and prevent moss from growing. The zinc is also useful for preventing algae, mold, and mildew. The strip will last for several years. Maintain the beauty of the rooftop in the future by removing large pieces of debris from it and spraying it off with a water hose. Eliminate surface stains with soapy water and a scrub brush before rinsing off the shingles.