Remove Green Algae From Roof Tiles

How to remove algae from roof shingles here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.

Remove green algae from roof tiles. We ll explain more of that in a bit. 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. Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight. When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow.

Tile or mexican tile roofs. Remember work on a cool roof in the shade so the stain solver solution doesn t evaporate. The cleaner can cover 80 100 square feet area quickly with a single bottle. Here s what the shingles looked like after removing the green algae.

You can remove moss and lichens from your roof by using vinegar as a environmentally friendly weedkiller. Step 1 clean up any organic matter on the roof such as twigs leaves or other debris. Removing moss mildew fungus and associated stains on roofs roof cleaning is a topic that draws yawns in new england but causes shudders and screams of agony from florida and points south where vegetable life seeks world domination. It penetrates black algae s defenses and removes the green algae that can grow on the shaded areas of your roof.

There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor. Wood shingles or wood shakes roofing. Metal roof or metal roofing. Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach.

To remove it you can try wet forget no scrub outdoor cleaner. Moss is a thick organic growth. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen. Wet forget outdoor cleaner works with the wind and the rain to wash away green and black algae stains over time.

The only way to take care of it is to use a high base chemical solution like zinc sulfate. You may think you have roof algae when really you have moss mildew or mold. There is no damage to the shingles. A mixture of trisodium phosphate tsp bleach and water will also remove stains.

Roof algae generally have a black green hue. 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. There is a time when every roof gets moss mildew or agley due to sun rain and snow. Green algae on swing set before using wet forget.

If not prevented it will take over the maximum portion of your house. The shingles look brand new.