Remove Algae From Metal Roof

Some homeowners also try to get rid of algae by using bleach.

Remove algae from metal roof. However the force of the water can cause your shingles to lose their protective granules. To remove roof moss you can use one of several different diy solutions in a household spray bottle. Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach. Hot water pressure washer with a 40 degree tip this is used on a flat roof as it is extremely effective and quick to remove the algae and mildew.

If you need to remove algae mold or mildew from your painted roof you ll go about doing so in much the same way that you d remove it from a standard roof. Roof moss removal usually requires a broom or heavy stream of water. To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather. For it to be effective two to four inches of the metal needs to remain visible on the roof.

To be effective 2 4 of metal should be visible on the roof. Copper strips prevent the growth of moss and algae. To keep algae from coming back once your roof is clean install a strip of copper or zinc coated sheet metal along each side of the roof just below the ridge. Living organisms on the roof can only survive at the current ph level.

With background and first hand knowledge of algae and its effects on asphalt roofing products is metal roofing also affected by algae staining. Pressure washing can even tear shingles off your roof. If you raise or lower the ph the organism will die allowing you to clean the stain from the roof easily. Using a plastic pump type garden sprayer thoroughly soak the affected allow it to sit for at least 5 minutes.

A bleach and water solution either sodium hypochlorite or oxygen bleach can remove roof moss as well as algae. As with algae using a pressure washer is not recommended. By changing the ph. Metal roofs only need low pressure to disturb and clean them.

If you want to make sure algae doesn t come back after you have cleaned your roof then install a strip of zinc or copper coated sheet metal on each side of your roof just under the ridge. Moss is a thick organic growth. Shingle manufacturers of course are waist deep in fungus resistant shingles the new legal eight ball is mold most of which is caused by moisture from building leakage in general from what i understand. You might think that pressure washing is the best way to remove algae.

Wash off all dirt and fungus residue.