Truth to materials is a topic that has been the subject of study and debate for decades. Its importance and impact on society has generated constant interest in its analysis and understanding. Over time, it has been explored from different perspectives, seeking to understand its implications and applications in various areas. In this article, Truth to materials will be approached from a critical perspective, presenting different approaches and opinions that will allow the reader to have a broad and complete vision of this topic. In addition, the main trends and recent developments that have marked its evolution will be analyzed, offering a panoramic view of its relevance in the current context.

Truth to materials is a tenet of modern architecture (as opposed to postmodern architecture), which holds that any material should be used where it is most appropriate and its nature should not be hidden. Concrete, therefore, should not be painted and the means of its construction should be celebrated by, for instance, not sanding away marks left by timber shuttering (béton brut). As another example, porcelain is infrequently used in the exterior facing of buildings, but one modern example is the Dakin Building, Brisbane, California; therefore, the porcelain panels of this building have been left uncovered by any paint or preservative.