![]() COST Action TU1403 is one among those projects that aim to create a knowledge transfer between the individual research institutes among each other and the industry. Commissioning and construction verification details, performance data about adaptive facade’s monitored operational performance and post-occupancy evaluations are lacking in literature.( 5–7)Ĭurrently, European research in the field of adaptive building envelopes is coined by numerous nationally funded projects. However, detailed data on the performance, design, and construction process of those facades are not commonly available. ![]() According to the Climate Adaptive Building Shells (CABS) database, which is continuously updated, there are at the moment more than 500 examples of buildings with adaptive facades.( 4) Various existing projects integrating adaptive building envelopes are constructed worldwide. Here the word “adaptive” means the capacity to react or profit from outside climatic conditions to meet productivity and more essentially to successfully meet the inhabitant’s comfort and well-being.( 2)Īdaptive facades are multi-objective, high performance envelopes that, unlike static curtain walls, respond mechanically or chemically to external climate dynamics to meet inside load requirements (cooling, heating, lighting, or ventilation) and occupants’ needs.( 3) In this manner, they are vital in accomplishing Europe’s 2020 targets.( 1)Īdaptive facades are building envelopes that can adjust to changing climatic conditions on an hourly, daily, seasonal, or annual basis. ![]() In a world confronting environmental challenges, there is an earnest requirement for dynamic building envelopes that respond to climatic changes in an ideal way, thereby giving the best comfort and indoor environmental quality, while keeping up high effectiveness.Īdaptive facades can provide step-change upgrades in the energy efficiency and the use of renewable energy while improving the comfort of buildings for tenants. Keywords: sunscreens, occupant comfort, solar gain, daylight, operation and control The outcome of this study identifies quantifiable performance indicators and effective strategies for the design and performance evaluation of optimal adaptive facades. This paper’s audience comprises mainly project managers, architects, and building facade engineers together with facility managers who are concerned with the process of design, construction, and operation of adaptive sunscreens facades. Different methods were used for evaluation and these include the following: interviews with the architect, facade engineer, technical control specialist and occupants, reviews of standards and codes, review of energy models, and a systematic design process mapping.Ī documentation of the case study describing the post-construction occupant comfort and facade operation was prepared. This paper is part of the research activities of working group 3 of the European COST Action 1403 on “Adaptive Facades”. These solar screens respond dynamically and automatically to the angle of the sun, which improves the control over energy consumption, solar radiation, and glare with the ability to allow natural light into the building. The selected project is a 150-meter-high twin tower that stands with a honeycombinspired structure and automated dynamic solar screen that responds to the sun’s movement. The evaluation mainly focuses on pre- and post-construction phases of adaptive facades: the design assist phase (including the durability test, visual mockup, onsite mashrabiya mounting, and weather stripping), the commissioning phase (field verification and performance testing), and the monitoring phase. In this context, this paper presents a case study of an adaptive sunscreen facade and evaluation of its performance and occupant behavior. The complexity of adaptive or dynamic facades’ evaluation is related to the performance evaluation of facade elements, systems, and overall building performance coupled with occupant behavior and occupant satisfaction. Many of the available facade performance evaluation systems or frameworks have limited applicability for such advanced building facades. The assessment of adaptive facades presents a barrier as there is no established assessment technique. Sustainable Building Design Lab, UEE, Applied Sciences, Lie`ge University, Lie`ge, Belgium
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