Originally Posted by
c100driver
It is paint.
OK, so if it is paint rather than adhesive vinyls, the thing that determines the time taken to apply (and thus a lot of the cost), more than anything else, is the number of colours in use, for you have to wait for each to dry before applying the adjacent one. This scheme is only black and white, so only two paint colours, so that minimises the time taken in the shop to apply it (though how the painter up the scaffolding applies the designer's intention here is a separate discussion !).