Best way to seal a stone patio, and kill moss!

[maf20]

Morning all

I have a two year old natural stone patio that I think I should seal. I pressure washed it a few months back and was amazed how much stuff came off. However, it's returning fast!

Can anyone recommend a good sealer?

Also, A lot of moss has started to grow in the pointing. I'm scraping it off from time to time. Is their a longer term solution for this?

 

[maf20]

Any ideas anyone?

 

[r896neo]

what type of stone is it?

 

[maf20]

It's riven sandstone.

Cheers

 

[r896neo]

give it a scrub with 3:1 water - bleach once a month and that should shift any moss or algae growing on it.

As far as sealers go i can't offer much help as i think many of them are next to useless.

 

[maf20]

Bleach?

Really?

Never thought that would be the way to go with natural stone?

 

[r896neo]

No it's great for algae and fine to use on sandstone, You are thinking about acid based cleaners which should definately be avoided.

If your unsure test it on an inconspicuous area first.