What is pebble dash or roughcast? | The Kid Should See This https://thekidshouldseethis.com/post/pebble-dashing-roughcasting-construction-video
In the 1920s, builders in the United Kingdom used a process called pebble dashing—covering a wall with small pebbles from the ocean floor—to cover old
It consists of two coats of a lime and sand “base”