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Best Sellers | | Home Earthbag Building: The Tools, Tricks and Techniques (Natural Building Series) | |
|  | |  | | | Earthbag Building: The Tools, Tricks and Techniques (Natural Building Series) | | | | | SKU:
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Usually ships in 1 business days | | | | | | Over 70 percent of Americans cannot afford to own a code-enforced, contractor-built home. This has led to widespread interest in using natural materials—straw, cob, and earth—for building homes and other buildings that are inexpensive, and that rely largely on labor rather than expensive and often environmentally-damaging outsourced materials. Earthbag Building is the first comprehensive guide to all the tools, tricks, and techniques for building with bags filled with earth—or earthbags. Having been introduced to sandbag construction by the renowned Nader Khalili in 1993, the authors developed this "Flexible Form Rammed Earth Technique" over the last decade. A reliable method for constructing homes, outbuildings, garden walls and much more, this enduring, tree-free architecture can also be used to create arched and domed structures of great beauty—in any region, and at home, in developing countries, or in emergency relief work. This profusely illustrated guide first discusses the many merits of earthbag construction, and then leads the reader through the key elements of an earthbag building:
Special design considerations
Foundations, walls and floors
Electrical, plumbing and shelving
Lintels, windows and door installations
Roofs, arches and domes
Exterior and interior plasters. With dedicated sections on costs, making your own specialized tools, and building code considerations, as well as a complete resources guide, Earthbag Building is the long-awaited, definitive guide to this uniquely pleasing construction style. Kaki Hunter and Donald Kiffmeyer have been involved in the construction industry for the last 20 years, specializing in affordable, low-tech, low-impact building methods that are as natural as possible. They developed the "Flexible Form Rammed Earth Technique" of building affordably with earthbags and have taught the subject and contributed their expertise to several books and journals on natural building.
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| | Product Details | | Author: | Kaki Hunter | | Paperback: | 288 pages | | Publisher: | New Society Publishers | | Publication Date: | June 01, 2004 | | Language: | English | | ISBN: | 0865715076 | | Product Length: | 9.9 inches | | Product Width: | 8.04 inches | | Product Height: | 0.65 inches | | Product Weight: | 1.51 pounds | | Package Length: | 9.84 inches | | Package Width: | 8.03 inches | | Package Height: | 0.87 inches | | Package Weight: | 1.45 pounds | | Average Customer Rating: |  based on 37 reviews |
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| | Customer Reviews | Average Customer Review: ( 37 customer reviews )
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208 of 213 found the following review helpful:
 Earthbag Building Dec 24, 2005
By Kelly Hart
"GreenHomeBuilding.com"
I have been anxiously awaiting my review copy of "Earthbag Building: The Tools, Tricks and Techniques" by Kaki Hunter and Donald Kiffmeyer for quite some time, and am pleased to now have the chance to review it. Published by New Society Publishers, this book should find wide distribution and many fascinated readers. Having built my own home using earthbags, I have a fondness for this method of building and am a proponent of its use.
I applaud the authors and the publisher on the creation of a well organized, clearly written, lavishly illustrated and useful how-to book on the subject of earthbag building. They state the significant reasons for considering this technology, and then proceed to lead the reader through the basic steps of building this way. They write with well-grounded understanding of the physics and geometry of the subject as well as good humor. As they say in their Introduction, "The focus of this book is on sharing our repertoire of tools, tricks, and techniques that we have learned through trial and error, from friends, workshop participants, curious onlookers, ancient Indian nature spirits, and smartass apprentices who have all helped us turn a bag of dirt into a precision wall-building system that alerts the novice and the experienced builder alike to the creative potential within themselves and the very earth beneath their feet."
Doni and Kaki (as many of us know them) came to earthbag building via a workshop with Nader Khalili of The California Institute of Earth Art and Architecture, who is the father of modern earthbag works; he calls the technique Super Adobe. This fact is key to how the authors relate to earthbag building: as far as they (and Nader Khalili) are concerned, the bag itself is merely a form into which adobe soil is placed and allowed to cure into a hard, solid earthen block, which then becomes part of a structure. Ultimately, the bags themselves are not considered to be structural...only the solid adobe within them. The initial chapter that describes appropriate materials for earthbag building goes into how to find or prepare the right mixture of sand and clay to make good adobe soil to fill the bags. The tools and tricks that they describe all follow from the intention of using adobe soil as the basis for building.
This approach to earthbag construction clearly produces extremely solid, durable, natural, sustainable and lovely structures, but it limits earthbag technology to a subset of "earthen architecture," that includes adobe, cob and rammed earth...it becomes just another way to build with earth. From my experience, I know that earthbag building can be much more than this! For instance, I built my earthbag home by filling the bags with crushed volcanic rock (scoria), which has the huge advantage of being an insulating material. I know of others who have filled the bags with rice hulls, another natural insulating material. Doni and Kaki state that, "Filling the bags with pumice alone produces a lumpy bag full of loose material that refuses to compact while lacking the weight that we rely on for gravity to hold it in place. We prefer to maintain the structural integrity of the wall system first, and then figure out ways to address insulating options."
Actually, lumpy bags are of no consequence, since they all get plastered anyway. Weight can be both an advantage and a disadvantage in a building system, since heavier objects produce more disruptive forces whenever there is any imbalance; even though gravity tends to hold things down to earth, it can also bring things down to earth. The real question is, does the wall system tend to hold together under all conditions that it will likely encounter? From my experience with earthbags filled with light scoria and plastered with wire mesh reinforced papercrete, the answer to this question is a resounding YES. In fact I once did an experiment of undermining a 12 foot section of such a wall by digging out the earth from beneath it to such an extent that the entire wall was resting on a tiny 6 inch pedestal in the middle, while most of the wall was totally suspended in mid air, and it held together without any deformation at all! Could any earthen wall systems withstand this test? (Pictures and a description of this experiment can be found at www.greenhomebuilding.com/earthbag.htm#Matts)
The methods for insulating earthbag walls that are suggested in "Earthbag Building" lack the elegance of simply filling the bags with insulating material in the first place. As far as I am concerned, one of the true merits of earthbag building that is not duplicated by any other wall system is the fact that the bags can be filled with a wide range of materials, according to their availability and function within the design of the structure. While loose material does not compact and solidify in the same way that adobe soil does, it will compact sufficiently to remain static in the wall, at least until both sides of the bags are plastered, at which point the wall ideally becomes monolithic. The only exception to this that I have experienced is with filling the bags with very fine, slippery sand, which does tend to shape-shift in the bag. The same principle that makes structural insulated panels (SIPs) so amazingly strong is at work here: a soft core of insulation is clad with tough skins of tensile material, and you can build whole houses with them with hardly any other framing.
"Earthbag Building" provides a good foundation for the basic concepts of building this way, starting with the foundation itself, and proceeding on to examine appropriate design features for walls. The merit of curved walls is clearly stated, as is the need for buttressing straight wall sections. The placement of barbed wire between the courses and how to keep it from being too unruly is covered. How to build corners, columns, door and window openings are all clearly shown. Even ideas for incorporating post and beam framing into an earthbag wall is discussed. I am particularly impressed with their use of "Velcro plates" of spiked wood inserted between the bags as a way to anchor door frames or other wall attachments. Also their use of wire mesh "cradles" where the bag ends are exposed, as under arches, makes a lot of sense for giving the eventual plaster something to hang on to. There are chapters on exterior and interior plasters, which they have much experience with and have many useful tips and recipes to reveal. There is a short chapter on poured adobe or rammed earth floors.
There is a whole chapter outlining a variety of roof systems that can be integrated into an earthbag structure but, Doni and Kaki claim that domes are "where earthbags exhibit their greatest potential; to us, it is the essence of earthbag building. We are able to build an entire house from foundation to walls to roof using one system." I agree with them about this. The physics and geometry of dome building is well covered. They provide a step-by-step illustrated guide to how they built their 12 foot interior diameter "Honey House" dome.
When I compare my own experience of building my earthbag house with what is presented in this book, I would say that for the most part it is similar, but there are some significant differences. There is a degree of precision advocated by the authors that seems excessive to me. For instance, they use a fairly elaborate compass arrangement for placing the earthbags in circular or domed structures that assures a refinement that ultimately is a matter of aesthetics, not structural necessity; I accomplished the same measurements with either a piece of string or a length of pipe. All of this precision takes time, which at least partly accounts for the fact that they suggest that on average one trained person can fill and lay only four bags in one hour. I easily proceeded at twice this rate, working by myself, but this is also because the bags of scoria only weigh about 35 lbs each, so they can be quickly filled on the ground, carried to their location on the wall, put into place without the need of metal sliders, and tamped tight with a few slams of a large steel tamper, and then it is on to the next bag. Laying earthbags filled with adobe in the manner described in this book would be extremely cumbersome, if not impossible, by one person; they recommend crews of at least three people.
In the end the reader is given a wealth of information, gleaned from the authors' hard experience, in a manner that is quite readable and clearly illustrated. I can recommend "Earthbag Building" for anyone thinking about building this way, as long as the perspective is taken that what they present is only one of many ways that earthbags might be utilized for construction.
77 of 78 found the following review helpful:
 I've found my bag, can you dig it? Mar 09, 2005
By C. R. Wolf
I was thrilled to finally obtain this book as I had been in contact with Kaki and the wait for it to be published seemed endless! It lived up to its expectations -- and then some.
I had long considered alternative building. I went from rammed tires [Comfort in a Cold Climate by Michael Reynolds] to cordwood [Complete Book Of Cordwood Masonry Housebuilding: The Earthwood Method by Rob L Roy] to underground housing [The Fifty Dollar and Up Underground House Book by Michael Oehler] to earthbags! After practically memorizing the 'honey house' website and speaking to Kaki, I felt that I could do this, I mean, not just a pipe dream, but I could REALLY do this!
Recommended in conjunction with this are Pauline Wojciechowska's book 'Building with Earth: A Guide to Flexible-Form Earthbag Construction (A Real Goods Solar Living Book)', and Kelly Hart's video 'Building with Bags'. Study the subject, take up your tools, and just do it... and start with the garage or the tool shed first, so you get the opportunity to learn from your mistakes before you have to live in them [smiles].
28 of 29 found the following review helpful:
Best book on this subject yet published! Dec 21, 2004
By Leonard Jones
"Leonard Jones, P.E."
This book covers all of the methods that are required to design and build an earthbag building. Everything is spelled out in great detail so that even the most inexperienced beginner will be able to figure out and complete each step in the building process. Each section of the book contains timely tips that will help speed up construction and avoid mistakes. Congratulations, Great Job!!
17 of 19 found the following review helpful:
 A home... dirt cheap! Jan 26, 2009
By Madigan McGillicuddy
"Librarian"
A modified version of the rammed-earth technique for building earthern homes, the writers, a goofy, sincere hippie couple detail step-by-step how to build a house using feedbags of dirt. The book is not a home design fantasy volume full of glossy color photos, instead relying heavily on black and white photos and easy to understand, how-to illustrations. Being pioneers in this form of construction, the writers come up with their own ad-hoc terminology. They aim to keep things, "FQSS" (Fun, Quick, Simple and Solid) as opposed to "fqss" (frustrating, quarrelsome, slow and stupid) and employ techniques such as "dimpling undone diddles", "hard-assing", "bag-whacking" and "scooching". They don't stint on details and every stage of the construction project is carefully covered step-by-step.
The authors' assertion that a team of adults could produce four bags per person per hour seemed wildly optimistic (that's one feedbag every 15 minutes... sounds like a grueling pace to me, but then again, I've never attempted a project of this sort.)
Their lone building project, (aside from earthern walls and the like) is a small one-room structure in their backyard which looks very appealing in a hobbit-like way. It looks perfect as an artist's studio, or even a kid's clubhouse. The writers were deeply inspired by Nader Khalili (author of Ceramic Houses & Earth Architecture), having worked with him on previous projects.
You'd have to be extremely, extremely handy with home construction to attempt a project of your own of this sort, but doubtless there are some who will be inspired to try. For a prettier, even more compelling look at low-tech, low-impact building, check out Yurts: Living in the Round by Becky Kemery.
6 of 6 found the following review helpful:
The ultimate do-it-yourself project Nov 07, 2006
By Robert P. Marinellie
"Bobox"
While the concept of building my own home is daunting, this book leads me to believe that this approach is not only possible but practical. The technique allows for a significant amount of flexibility and architectural design. If you ever wanted to try something different--this should be considered. One of the pictures shows a house design that emphasizes an organic flow of lines, very curvy, and very round. one house, once finished, looks like it was built from limestone (aka The Flintstones). The houses look beautiful!!
See all 37 customer reviews on Amazon.com
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