Building materials both derive from nature and human culture. Although this categorisation often assumes a binary opposition; it should be reminded that natural materials have always been utilised for architectural design through human faculty embedded in cultural knowledge. On the other hand, modern materials produced via destructive industrial means, credited to human culture, do reveal their inherent ‘nature’ in their various applications and in different climatic conditions. Acknowledging the inherent intertwining of nature and culture in building materials, this article discusses the reasoning and moral language embedded in architectural theories regarding material use in design, through the angle of perversion. Based on its various definitions, interpreted as unnatural, abnormal and contingent, the article approaches this multifaceted topic, through examining aluminium; an industrially produced modern material that is conceptually malleable. The transformation of aluminium’s use in architecture and its perception throughout its short history presents a fruitful case for understanding many-sided arguments regarding material applications to formal design approaches and thinking with/through material in order to design.