Bridgens B

Farmer G

Holstov A

Morris P

The evolution of the shape, structure and behaviour of natural responsive systems, such as pine cones, is defined by the necessity to maximise the use of the inherent properties of available materials. This principle forms the basis for a new approach to adaptive architecture that goes beyond the current performance-oriented technological paradigm of sustainability and seeks to address a wider range of sustainable considerations by deploying materials with embedded responsive properties. This paper presents research into novel biomimetic hygromorphic (moisture-sensitive) materials that employ the natural responsiveness of wood to moisture, and argues that they provide opportunities for the design of simpler yet more versatile responsive building skins which are passively attuned to the variable rhythms of the internal and external environment. It provides an overview of the principles for the design and application of multi- functional hygromorphic façades and introduces analytical tools for optimising material selection and composite configuration

Towards sustainable adaptive building skins with embedded hygromorphic responsiveness

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