How to Remove Mold on My Shed Roof

Written by kaye wagner | 13/05/2017
How to Remove Mold on My Shed Roof
Remove mould from your shed roof as soon as you notice it. (village shed image by AGphotographer from

Mold is a type of fungus that eats organic matter. It tends to grow in areas and on materials with excess moisture such as waterlogged wooden planks or poorly drained shed roofs. Mold growth can be slimy in texture, and its colour ranges from black to brown to green. You can hire a professional to remove the mould or you can clean it with a simple mould-removal solution and some elbow grease. Prevent mould growth by properly draining your shed's roof and by coating it in mould-resistant paint.

Put on gloves, goggles and an high efficiency dust mask to protect yourself from mould spores and potentially harmful chemicals.

Add 10 tbsp of trisodium phosphate to 1 gallon of water.

Mix the solution until the trisodium phosphate has completely dissolved.

Pour the solution into a spray bottle.

Spray the entire surface of the shed roof with the solution. Pay special attention to completely soak the areas with mould growth. Let the solution sit on the growth for at least 10 minutes if the mould growth is extensive.

Scrub the mould from the shed roof with a scrubbing brush.

Spray the entire area with clear water from a hose once you've removed all of the mould.

Let the area dry completely.

Things you need

  • Gloves
  • Goggles
  • High-efficiency dust mask
  • Trisodium phosphate
  • Water
  • Spray bottle
  • Scrubbing brush
  • Hose

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