page_title: Climate-adaptive building shell
section_title: Based on the control type
hierarchical_section_title: Climate-adaptive building shell / Categorization of CABS / Based on the control type
caption_attribution_description: English: Heliotrope in Freiburg
context_page_description: Climate-adaptive building shell is a term in building engineering that describes the group of facades and roofs that interact with the variability in their environment in a dynamic way. Conventional structures have static building envelopes and therefore cannot act in response to changing weather conditions and occupant requirements. Well-designed CABS have two main functions: they contribute to energy-saving for heating, cooling, ventilation, and lighting, and they induce a positive impact on the indoor environmental quality of buildings.
context_section_description: There are two different control types: intrinsic and extrinsic regulators.
caption: The Heliotrope (building) in Freiburg, Germany is a structure that rotates to face his windows towards the sun in winter and a blank white wall in the summer. Separately photovoltaic panels also rotate to maximize the collections of solar radiation.
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