"Mutability of materials is also recognized as a design opportunity. the capacity of materials to transform and change over time, i. e. deteriorate through ageing, weathering, and use, was something to be avoided in much twentieth-century architecture, and was rarely embraced as a design opportunity."
Branko Kolarevic and Kevin R. Klinger
Extracted from: KOLAREVIC, B and KLINGER, K: 2008, Manufacturing Material Effects Rethinking Design and Making Architecture,
. Routledge, New York