[Ar.Axel Ritter]

Sensitive and reactive materials, products and constructions are required to help buildings react dynamically to various influences for reasons of stability and energy absorption.

They are capable of changing their properties themselves or their properties being changed by external influences such as the effect of light, temperature, force and/or the application of an electrical field. These influences may lead to changes directly without conversion, or indirectly with conversion.

SHAPE-CHANGING NON- AND SEMI-SMART MATERIALS

Heat-shrinkable materials In the form of film or sleeves are among those materials and products that change their shape plastically and Irreversibly in response to Increased temperature.

COLOUR- AND OPTICALLY CHANGING NON- AND SEMI-SMART MATERIALS

Surfaces that change colour depending on the angle of view are not smart materials but are of interest in the field of architecture. These types of material include dyes with special-effect pigments.

Dichroitic and holographic optical materials and products made from them are examples.