Moss resistant patios

Pressure wash and apply a moss killing solution.

Nature can grow on any surface, and moss is ideal for soggy dank places. It needs no soil since it acts as its own water retaining sponge..

Can't you just use a pressure washer to clean them every few years?

I'd second this. I was amazed at the difference it made to our patio. I'd forgotten how nice the paving stones looked until I pressure- washed them. They'd been down for three years, and it wasn't particularly moss so much as general grime.

I'd third that. mine have been down 30 years, and have occasionally been cleaned with either Jeyes fluid or bleach to remove moss/general grime. I've recently done them with a pressure washer, and they came up as new.

How new does a 100 million year old bit of sandstone actually get? ;-)

Never heard of anything like that, but you can buy plastic mop buckets that are made with something that prevents bacteria & mould. There is also a type of powder coating (Activecoat) for lockers in hospitals which does the same thing. Wonder if the idea could be applied to slabs?

replying to The Medway Handyman, creekgirl wrote: No, no, no! Don't powerwash moss off concrete or flagstone! At the level of pressure sufficient to blast off moss, the surface of the concrete or stone becomes abraded. Tiny pock marks trap dirt easier, and moss comes back more embedded and harder to dislodge than ever. Especially tragic to ruin the surface of beautiful, expensive flagstone. Don't ask me how I know......

In that case my concrete is already pitted so I think I'll get a man in to do it, after all if at some time I need it to be redone a few more years will be a bonus.

I also have moss on the roof. Brian

That's worth knowing, though I suspect the OP has already learnt that after 10 years.

NT

Yes, but the fact remains that its useful. I'm assuming the great portal which ignores years in its date sorting is at work here again then. Brian