A comprehensive practical manual for professionals and self-builders, this innovative book explains the many benefits of building with hempcrete. Hempcrete is a building material with excellent, environmentally friendly properties. It's made from lime and hemp shivs (a waste product from hemp fibre growing) and can be used for walks, floor and roof insulation. Hempcrete is breathable, absorbing and emitting moisture; this helps regulate internal humidity, avoiding trapped moisture and mould growth, and creating healthier buildings. It provides excellent acoustic and thermal insulation, and it is lightweight, which reduces construction costs. Whether you're working on a new build or are planning a renovation, The Hempcrete Book tells you everything you need to know to get started with hempcrete. It describes how to source and mix it, and provides a detailed account of construction techniques, highlighting potential pitfalls and how to avoid them. With fully illustrated design notes and examples of completed builds, this book is a powerful tool for any eco-builder.

Comprehensive guidance on using hemp lime for housing and low-rise buildings is given for the first time in this book, which is full of practical information on materials, design and construction.

Building with Hemp has been an inspiration for architects, builders, community activists, students and teachers around the world and as this construction system is gaining in popularity this edition will be even more important in assisting the uptake of this technology internationally.

The essential guide to hempcrete - a strong, versatile, environmentally friendly, energy-efficient natural insulating material Hempcrete is a versatile, energy-efficient natural insulation material, useful for walls, roofs and floors. Made from the inner stem of the hemp plant mixed with a lime-based binder, it is a very strong, lightweight and breathable alternative to manufactured insulations. Essential Hempcrete Construction is a fully illustrated practical guide to this affordable, renewable method, from procurement to finishing. Going well beyond the scope of many natural building books, this indispensable manual includes a complete introduction to hempcrete, packed with all the information you need to determine whether it's the right choice for your project. It covers: Material specifications, testing and building code references and climate data Detail drawings for design reference Tool lists, and complete step-by-step instructions for mixing and placing hempcrete Finishing and maintenance techniques Budgeting and labor estimates Additional resources. Essential Hempcrete Construction is part of New Society's Sustainable Building Essentials Series. Series editors Chris Magwood and Jen Feigin have scoured the world of sustainable building to bring you the techniques and systems that deliver measureable benefits in terms of greater energy efficiency and reduced environmental impact. Written by the world's leading sustainable builders, designers and engineers, these succinct, user-friendly handbooks are indispensable tools for any project where accurate and reliable information are key to success. Get the Essentials!

Using plant material as raw materials for construction is a relatively recent and original topic of research. This book presents an overview of the current knowledge on the material properties and environmental impact of construction materials made from plant particles, which are renewable, recyclable and easily available. It focuses on particles and as well on fibers issued from hemp plant, as well as discussing hemp concretes. The book begins by setting the environmental, economic and social context of agro-concretes, before discussing the nature of plant-based aggregates and binders. The formulation, implementation and mechanical behavior of such building materials are the subject of the following chapters. The focus is then put upon the hygrothermal behavior and acoustical properties of hempcrete, followed by the use of plant-based concretes in structures. The book concludes with the study of life-cycle analysis (LCA) of the environmental characteristics of a banked hempcrete wall on a wooden skeleton. Contents 1. Environmental, Economic and Social Context of Agro-Concretes, Vincent Nozahic and Sofiane Amziane. 2. Characterization of Plant-Based Aggregates. Vincent Picandet. 3. Binders, Gilles Escadeillas, Camille Magniont, Sofiane Amziane and Vincent Nozahic. 4. Formulation and Implementation, Christophe Lanos, Florence Collet, Gérard Lenain and Yves Hustache. 5. Mechanical Behavior, Laurent Arnaud, Sofiane Amziane, Vincent Nozahic and Etienne Gourlay. 6. Hygrothermal Behavior of Hempcrete, Laurent Arnaud, Driss Samri and Étienne Gourlay. 7. Acoustical Properties of Hemp Concretes, Philippe Glé, Emmanuel Gourdon and Laurent Arnaud. 8. Plant-Based Concretes in Structures: Structural Aspect – Addition of a Wooden Support to Absorb the Strain, Philippe Munoz and Didier Pipet. 9. Examination of the Environmental Characteristics of a Banked Hempcrete Wall on a Wooden Skeleton, by Lifecycle Analysis: Feedback on the LCA Experiment from 2005, Marie-Pierre Boutin and Cyril Flamin. About the Authors Sofiane Amziane is Professor and head of the Civil Engineering department at POLYTECH Clermont-Ferrand in France. He is also in charge of the research program dealing with bio-based building materials at Blaise Pascal University (Institut Pascal, Clermont Ferrand, France). He is the secretary of the RILEM Technical Committee 236-BBM dealing with bio-based building materials and the author or co-author of over one hundred papers in scientific journals such as Cement and Concrete Research, Composite Structures or Construction Building Materials as well as international conferences. Laurent Arnaud is a Bridges, Waters and Forestry Engineer (Ingénieur des Ponts, Eaux et Forêts) and researcher at Joseph Fourier University in Grenoble, France. He is also Professor at ENTPE (Ecole Nationale des Travaux Publics de l’Etat). Trained in the field of mechanical engineering, his research has been directed toward the characterization and development of new materials for civil engineering and construction. He is head of the international committee at RILEM – BBM, as well as the author of more than one hundred publications, and holder of an international invention patent.

“All of the essential knowledge for completing a successful rammed earth project. Written by a geo-technical engineer with experience ramming earth.” —Kelly Hart, author, Essential Earthbag Construction Everything you need to know to build with rammed earth in warm and cold climates. Rammed earth—sand, gravel, and clay or lime/cement binder packed into forms—is a low-energy, high-performance building method, yielding beautiful, sustainable results. It’s thermally stable and can be insulated, can actively modulate humidity, provides a healthy indoor environment, and allows site materials to be used for major structural and building envelope elements. Essential Rammed Earth Construction covers design, building science, tools, and step-by-step building methods for any climate, with a special emphasis on building in cold climates of the northern US, Canada, and northern Europe. Coverage includes: Overview of earthen building Appropriate use of rammed earth walls Stabilized versus raw rammed earth Design considerations, including structural, insulation, and building envelope details Special considerations for cold and freeze-thaw climates Construction drawings, with step-by-step building instructions Tools and labor covering industrial methods, low-tech techniques, formwork options, mix design, budgets, and schedules Codes, inspections, and permits. This guide is an essential resource for experienced builders, DIY home owners, designers, engineers, and architects. “A much-needed and science-based update to a North American audience of designers, engineers and builders.” —Bruce King. P.E., author, The New Carbon Architecture “ A great book for anyone who wants to deepen their technical knowledge of rammed earth walls systems. It’s very helpful to have a book on rammed earth that is more focused on engineered rammed earth walls for cold climates.” —Clifton Schooley, Clifton Schooley & Associates, Rammed Earth Designers and Builders

Sustainable building from the ground up - the pros and cons of the latest green and natural materials and technologies