How do you get algae off of concrete?
By jim from Australia
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Its caused because of dampness, try painting over it.That's what I did.
I concur. Painting over algaea is the most stupid, thing I ever heard of, when all you have too do is wait for the sun to be hitting the affected area, and bleach ,then rinse,and rinse,and rinse!!
Lol.
I guess you can paint over the concrete once you get rid of the moss.
There is a positive to painting over concrete. Many people do it in their basements. Painting over it works as a sealant, as water (any moisture) can soak into concrete therefore leaving it open to algea or mold growth.
I'm sorry.... I didn't mean you should just paint OVER the algae. Properly clean it first then paint for further prevention
You can paint over the concrete after you remove the stuff. The Dry Lock Masonry Concrete paint locks in the moisture and can last for a couple years.
Certainly ou can paint concrete, just remove the yukky stuff first!
Don't bleach in direct sunlight as UV breaks down the chlorine quickly,gives it a longer reaction time too.
It is so stupid painting over concrete it would make it more slimey .
I have painted all my garden walls. A nice white to make the small garden welcoming and bright as the grey is dull and boring
we bleached our green moss growing on our concrete steps, scrubbed well, rinsed, let dry well, then painted them white last fall. Today I'm looking at still green moss on side of steps eating away at the concrete causing it to fall off in chunks.
We bleached scrubbed dried and painted last fall this spring mold is back and eating away the concrete
Some concrete slabs are under decks and don't see much direct sunlight (parts don't see any direct sunlight) and algae forms. However I'm not sure painting would work as a long term fix.....
Ammonia solution works wonders for me
I was told Ammonia with a soapy solution is used to clean canvas canopies and boat covers instead of remaking the canopies and covers. A wide broom an be used as a brush.
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