On 09/12/2020 11:00, Tim Lamb wrote:

Conversely, I have several piles of second hand slate from my last
roofing job not touched in 15 years. Along with the soft red brick and
stable pavers.

One day in the 1960s my dad was in charge of the demolition of a public
lavatory. The end result is that in my back yard I have 41 glass bricks,
in a pile.

Bill