On Sat, 18 Nov 2006 10:09:37 -0000, "Mary Fisher"
wrote:

"Joe Fischer" wrote in message
.. .
snip
roofs don't usually last more than 15 or 20 years,

WHAT?

Our house was built in 1937 and has its original roof (plus solar water
heating panel). Most of the others houses on this estate are the same, the
few who have newer roofs have replaced them for reasons other than failure.
Mary

What kind of roof, slate or terra cotta tile, or metal?

I guess there are places where a kind of concrete
tiles are the most used.

Joe Fischer