Roof cleaning DOs and DON’Ts

  • DO use equal parts bleach and water. It’s important to remove not only dirt but any algae or mildew that may be growing. 
  • DON’T use a power washer on shingles – Power washers are too strong to clean shingles; the force will break them down. 
  • DO let the bleach and water solution set for up to 20 minutes and then rinse it away with clean water. 
  • DON’T forget about your plants and shrubbery around your home when rinsing off the cleaning solution. Wet any plants with water and then cover them with plastic to protect them. 
  • DO clean your roof on a cool day, with cloud coverage and no wind. 
  • DON’T wait until your roof is covered in algae or moss to clean it. It’s always better to keep your roof clean rather than waiting until it’s a big task. 
  • DO Hire someone to clean your roof if you are unable to clean it yourself safely. 
  • DON’T clean your roof without taking proper safety precautions.