Remove Algae From Metal Roof

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.

Remove algae from metal roof.

You might think that pressure washing is the best way to remove algae. 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. 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. Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach.

Living organisms on the roof can only survive at the current ph level. To be effective 2 4 of metal should be visible on the roof. Using a plastic pump type garden sprayer thoroughly soak the affected allow it to sit for at least 5 minutes. For it to be effective two to four inches of the metal needs to remain visible on the roof.

As with algae using a pressure washer is not recommended. That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to regain a foothold on your shingles. However the force of the water can cause your shingles to lose their protective granules. If you raise or lower the ph the organism will die allowing you to clean the stain from the roof easily.

Copper strips prevent the growth of moss and algae. Moss is a thick organic growth. Wash off all dirt and fungus residue. 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.

By changing the ph. To remove roof moss you can use one of several different diy solutions in a household spray bottle. 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. Hot water is highly recommended as it much more effective at cleaning.

Some homeowners also try to get rid of algae by using 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. Pressure washing can even tear shingles off your roof. Roof moss removal usually requires a broom or heavy stream of water.

Is metal roofing subject to these claims.