On Sun, 13 Mar 2016 22:57:20 -0000, Sam Crean wrote:



"Mr Macaw" wrote in message news
On Sun, 13 Mar 2016 22:13:29 -0000, Sam Crean wrote:



"Mr Macaw" wrote in message
news On Sun, 13 Mar 2016 21:40:29 -0000, DerbyBorn
wrote:

"Mr Macaw" wrote in news
http://www.clayandslateroofingproduc...ed-roof-tiles/

Just like that in Germany. They lookk clean and fresh. Moss wouldn't
get
a
hold.

But how long does the glaze last?

Forever basically, just like it does with glazed wall tiles.

This makes me wonder why all tiles aren't glazed. Is it very expensive?

Certainly costs more than unglazed tiles and concrete tiles.

Well they look nice, but allegedly normal ones last 80-100 years anyway, by which time the builder doesn't care.

--
Everyone has a photographic memory, some just don't have film.