Green algae

My garden shed always gets green algae along one wall,
which is a nuisance when I want to Cuprinol it. You can't just paint over it because it starts showing through again in no time.

Does anyone happen to know an easy way to remove the green stuff before I paint this year please?

Re: Green algae

I have the same problem, I've been told the best product to clear it is Jeyes Fluid, not the basic type, there's one for patios, they sell it in Home Bargains and other discount stores much cheaper than B&Q, just under £7

Re: Green algae

Honey, a friend came and washed the shed walls with Bi-carb and water.
Brilliant, all green gone. Shed now painted again.

Re: Green algae

Maybe that's a similar formula to Patio Magic. which I swear by. It doesn't have an instant effect but spread it once a year over patios wood panelling (sheds) and walls with algae on. Over a time, it gets rid of the green and keeps it that way. I do my green areas every Spring.

Re: Green algae

Well I was pleased with the result Mart, and being as it was a lovely warm sunny day, it dried in no time and we were able to paint the same day. I'd certainly use it again.
I have to be careful what's used for 2 reasons.
One is I don't want nearby plants damaged and -
Two us, I don't want anything that might harm my dogs.

Re: Green algae

Mups I've done that too but eventually it comes back!

Re: Green algae

Ah right Mups. I think Patio Magic is OK with pets. Our daughter comes here with her dogs fairly frequently and they are OK. It's a water-based product (dilution of 1 to 5). I've used on paths edged by grass. Seems OK but perhaps not as safe as bi-carb. Not an instant cure either.

Re: Green algae

I'll certainly bear it in mind Mart, thankyou.

Re: Green algae

I've decided to paint the couple of walls a mid green akin to a lawn colour, that way at least the algae wont show up as much, worth a try methinks

Re: Green algae

That's cheating!