In 'Trullisatio', Buckley took a technical aspect of painting and used this expressively. Instead of being relegated to a functional role, a process is treated as a way of creating an image. 'Trullisatio' is an Italian term for the process by which the first layer of crude plaster laid onto a wall is scored in order to provide a key for a later, smoother finish. The patterned effect (created by manipulating the wet paint with a comb) also relates to the combed finish on walls popular in domestic interiors earlier this century. By exposing the tacks pinning the canvas to the support, Buckley emphasises the painting's non-illusionistic, physical nature.