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I  f we understand aesthetics in architecture as an interplay of visual, sensory and contextual factors,
              which together determine the emotional and intellectual experience of a building, then it characte-
             rizes subjective and cultural, but also universal principles of harmony and proportion. Then aesthetics
             is more than just beauty. It influences and inspires each and every individual and creates a sensual
             experience, both unconsciously and consciously. However, architecture is also the sum of building
             products conceived and developed by the construction industry. The demands on function and aes-
             thetics are high: materials must not change over time, meaning be altered and age, nor show signs of
             wear, smell and they definitely have to be and stay dirt-repellent, fireproof, etc. ... For example, we let
             wood pre-grey so that we don’t risk experiences any surprises in the end, because we would have to
             leave natural greying to the wind and weather without any control. We are very much on the safe side
             with wood prints, which then look aged or freshly cut, depending on taste. Although the design “quasi
             from the catalogue” is practically comprehensible and calculable, it can also be tiring as it denies the
             user sensory experiences. The effects on the environment and people caused by the necessary supply
             chains are ignored. Interior design is rarely long-lasting, but always material-intensive. The aesthetic                 Fotos: Tjark Spille
             perception that dominated in recent decades has been characterized by the thoughtless consumption
             of resources, energy and land. This still shapes our customary viewing habits to this very day. The   Kornversuchsspeicher Bauteil 1: neue Innendämmung • Part 1: new interior insulation
             choice of material not only influences the look, feel and function, but also determines the type of use
             and possible processing. Visual habits will adapt. It was against this background that the idea for the   Die historische Sackrutsche konnte erhalten werden. • The historic sack chute was preserved.
             yearbook on sustainable architecture and design was born.

             Renovation of a ruin, a commercial park and the Kornversuchsspeicher

             With the LOT 8 project, Atelier LUMA from Arles, BC architects & studies from Brussels and the Lon-
             don-based Assemble office show what is possible when converting an industrial ruin into a museum
             complex using regional bio-based materials. The project was based on the results of years of research
             into global economic, ecological and human challenges, which are reflected in almost 20 construction
             applications: from door handles made of salt crystal and demolition waste in rammed earth to acoustic-
             and wall panelling which is ingeniously made of agricultural waste. Sunflower fibres, rice straw and
             mineral resources, clay waste, soil, stone waste and dust have been converted into building materials.
             The bioregional approach means transforming unused local resources into unusual products. Most of
             the raw materials come from within a radius of 70 kilometres. In an interdisciplinary exchange, the
             expertise of local players is combined with various specialist fields to create solutions in the construc-
             tion sector. Gravel from bricks, stones and ceramics from demolished buildings in Nîmes appear in
             adobe walls rammed on site. White stone dust from waste from the Sarragan quarry in Baux-de-Pro-
             vence almost lends them an aspect of lightness. The historic building structure of the Flei-75 industrial   Bauteil 2: Teilrückbau der typischen Trichterdecke • Part 2: Partial dismantling of the ceiling
             estate in Lübeck has been characterized since the 19th century by an apartment block on the street
             side and the workshop behind it, as well as the studio building. The aim of the necessary thorough
             refurbishment by Haufe Petereit Architekten from Lübeck was to preserve the legibility of the building’s
             history. In order to protect individual components such as old staircases and special wall sections,
             intensive coordination with and a sensitive approach by craftsmen experienced in historic preservation
             was necessary. By reusing the buildings, grey energy that was used long ago for the production of raw
             materials and construction was preserved. The green roof and façade greening ensure a maximum gain
             in CO -binding plants. Irrigation is ensured by a rainwater basin that is fed by the surrounding roofs.
                2
             In Hamburg, decades of vacancy made it necessary to extensively renovate the listed Konversuchs-
             speicher. The Berlin team from AFF Architekten was able to largely preserve the striking clinker-brick
             façade – it was refurbished and supplemented with existing substance. During the extensive restoration
             of the concrete supporting structure inside, historical supports were retained as far as this was possible.
             Exposed ceiling chutes achieve the necessary fire protection by means of metal mats and shotcrete.
             Their cloudy, rough surfaces make a positive contribution to the acoustics of the entire space. From the
             outset, the entire planning followed a deliberately minimalist approach: there were to be no suspen-
             ded ceilings, no installations on plaster, however robust and refurbishable floors were to be installed.   Detail der gelungenen Fassadensanierung • Detail of the successful façade renovation
             By dispensing with plaster, colours and finishes, authentic surfaces are created that take on a patina.
             Historic concrete elements and exposed brickwork appear untreated and clearly show traces of time.
             The unobtrusive refurbishment predominantly using mono-materials considers the entire life cycle of
             the individual components and thus enables residue-free dismantling should it once become necessary.


                         Buchtipp

                         Sustainable Architectur & Design 2023/2024
                         Herausgegeben von Andrea Herold, Tina Kammer. Erschienen 2023 bei avedition Stuttgart
                         Deutsch/Englisch. 248 Seiten. 250 Fotos und Pläne. Flexcover mit Leinen. Format: 21 ² 27 cm. 59,00 EUR.
                         ISBN 978-3-89986-397-0

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