Building with Earth: Design and Technology of a Sustainable Architecture

About this book

Building with Earth: Design and Technology of a Sustainable Architecture, edited by Anna Heringer and Eike Roswag-Klinge and published by Birkhäuser in 2020, arrives at a moment when earthen construction has moved emphatically from the margins of architectural discourse to its center. Climate urgency, the growing critique of energy-intensive industrial building materials, and renewed interest in vernacular traditions and local building cultures have all contributed to an international resurgence of earth as a primary architectural material. This volume, edited by two of the most compelling practitioners in the field, synthesizes contemporary theory, technical knowledge, and realized projects to offer a comprehensive picture of where earth architecture stands today and where it is heading.

Anna Heringer holds the UNESCO Chair for Earthen Architecture, Building Cultures, and Sustainable Development — a position that reflects the global significance her practice has achieved since her earliest work in Bangladesh. Her philosophy is grounded in the conviction that architecture is not merely a technical discipline but a social and cultural practice, one that should employ local materials, engage local labor, reinforce local identity, and contribute to the dignity and agency of communities. Eike Roswag-Klinge, her collaborator on the landmark METI Handmade School in Rudrapur, Bangladesh — a project completed in 2006 that went on to receive the Aga Khan Award for Architecture in 2007 — brings complementary expertise in engineering and building technology, particularly in the integration of natural materials including earth and bamboo within technically rigorous structural systems.

The METI School stands as the founding reference point for both editors and for much of the book's intellectual framework. The school's ground floor walls are massive earth construction — a locally sourced mixture of clay, sand, and straw compacted into loadbearing walls that regulate interior temperature and humidity without mechanical systems. The upper floor transitions to a lightweight bamboo structure, creating a deliberate dialogue between the heaviness of earth and the lightness of the upper storey.

The school's cave-like ground-floor learning niches, sculpted directly into the thick earth walls, have become emblematic images of an architecture that is simultaneously technically accomplished, climatically responsive, and humanly resonant. Heringer's subsequent project in Bangladesh, the Anandaloy disability center and textile workshop in Rudrapur (2020 winner of the Henrik F. Obel Award), demonstrates the evolution of her approach toward increasingly refined and expressive earth forms.

The book addresses the full range of contemporary earthen construction methods. Rammed earth — pisé — has experienced particularly dramatic growth in the last two decades, driven in part by the development of stabilized rammed earth systems that use small additions of cement or lime to improve water resistance and compressive strength while retaining the material's thermal and aesthetic qualities. Contemporary rammed earth projects range from modest residential buildings to large cultural and civic structures, with practitioners in Australia, Germany, France, and China pushing the boundaries of formwork technology, material specification, and architectural expression.

Adobe and compressed earth block construction continue to be developed for mass housing applications in Africa, Latin America, and South Asia, where the abundance of suitable soils and the need for affordable, thermally comfortable housing make earthen construction highly relevant. The volume engages seriously with the scientific basis of earthen construction. Soil selection, classification, and testing — the granulometric analysis, plasticity testing, and compressive strength determination that underpin responsible earthen building — are presented alongside discussion of stabilization strategies, durability under wetting and freeze-thaw cycling, and long-term maintenance requirements.

The role of earthen plasters as both weatherproofing layers and interior hygroscopic regulators receives attention, as does the interface between earth structures and foundations, roof structures, and other building components. Sustainability is assessed across multiple dimensions. The low embodied carbon of raw earth construction — which requires no high-energy processing and is typically sourced within a few kilometers of the building site — positions it among the most environmentally favorable structural materials available.

The capacity of earthen walls to store and release thermal energy smooths diurnal temperature swings, reducing heating and cooling loads across a wide range of climates. The hygroscopic behavior of earth contributes to stable interior humidity levels. And the reversibility and biodegradability of unstabilized earth construction means that buildings can be returned to the land at end of life without environmental contamination.

Beyond technical performance, the book addresses the cultural and social dimensions of earthen architecture. Heringer's insistence on local labor participation — on involving community members not merely as unskilled workers but as skilled builders whose traditional knowledge is recognized and valorized — connects earthen construction to broader arguments about bottom-up development, cultural continuity, and the social benefits of construction as a community practice. The book includes projects from multiple continents, presenting earthen architecture not as a developing-world fallback but as a sophisticated global practice adapted to diverse climates, contexts, and communities.

The volume also engages with contemporary challenges: the tension between traditional craft-based techniques and the need for codified standards and engineering specifications that satisfy regulatory requirements; the difficulty of training architects, engineers, and builders in earthen construction when it occupies only a marginal position in most professional curricula; and the question of how mass housing programs can scale up earthen construction without sacrificing the material's most important qualities. These questions give the book a forward-looking urgency that distinguishes it from purely historical or technical treatments. Building with Earth positions earth construction at the intersection of heritage, innovation, and environmental responsibility.

It is an essential reference for architects and engineers engaged with sustainable material practice, and an eloquent argument for the place of earth in a low-carbon architectural future.