On Sun, 13 Mar 2016 18:09:05 -0000, DerbyBorn wrote:

"Mr Macaw" wrote in news
My neighbour had his roof jetwashed, now he has to replace the whole
thing for £3000.

http://roofcoatingscam.com/is-it-saf...e-wash-a-roof/


In Germany many of the roof tiles are glazed.

Like this? They look really shiny, does that prevent moss, and stop people wanting to clean them?
http://www.clayandslateroofingproduc...ed-roof-tiles/

--
Confucius say: "Boy who go to sleep with stiff problem wake up with solution in hand."