RzB wrote:
"Phil L" wrote in message
.uk...
Richard wrote:
Our house roof appearance is being spoilt by lichen, is there
anything on the market to remove it, and any good techniques for
spraying it without venturing onto the roof itself.

It will require cleaning off every six months if you hope to keep it
away. You cannot clean it off without getting on the roof neither,
so add on the cost of replacing broken tiles, gutters, legs etc and
ask yourself is it really worth bothering with?

We had ours done about 18 months ago. See post at the time....

http://tinyurl.com/p7h68

No sign of it returning yet. It was great big balls of moss.
As Broadback says - filled up the gutters and birds would
also throw it all over the patio. Much better now that it's
been done.

We had a local roofing company do the work. Scraped off
all the moss first, then applied some chemical and then a
final brushing off. Quite labour intensive.

Roy

That's moss, not lichen...moss grows in balls, rolls down the roof into the
gutter etc etc.
Lichen is like a flat green blob (looks a bit like the droppings of a wood
pigeon) like this;
http://www.pixero.com/bilder/downloa...and_lichen.jpg