Contemporary architecture often employs terms and objects that are adopted from other disciplines: from the way in which projects are presented (media, publicity and art) to the elements of the project itself (objects borrowed from the street, from the world of nautical design, and other extra-disciplinary fields). The presupposition here is that the decontextualisation of these elements is capable of providing an added value, a form of estrangement that increases the identity of a building, or which, through the mechanisms of analogy or irony, confirms the ideas upon which a project is based. This proper use of improper elements may also take place within the discipline itself, as is the case with this addition to an arts centre in Castellón where Santiago Cirugeda has chosen to clad the building with formwork designed for pouring the floor slabs. Here the mechanism is more subtle: the modules in black plastic appear, to those who don’t know any better, like primary objects, realised specifically for the project. Placed together they create a texture, emphasised by the shadows generated by the voids that were originally designed to hold poured concrete. The identity of the building is reinforced by the serial nature of the elements that define the elevations, installed using steel bars that protrude from the envelope, collaborating in the patterning of the exterior surfaces.