Chelsea Green Publishing

The Hand-Sculpted House

Pages:384 pages
Book Art:8 pages of illustrations
Size: 8 x 10 inch
Publisher:Chelsea Green Publishing
Paperback: 9781890132347
Pub. Date June 01, 2002

The Hand-Sculpted House

A Philosophical and Practical Guide to Building a Cob Cottage

By Ianto Evans, Michael G. Smith and Linda Smiley
Illustrated by Deanne Bednar

Building & Energy

Availability: In Stock


Available Date:
June 01, 2002


Are you ready for the Cob Cottage? This is a building method so old and so simple that it has been all but forgotten in the rush to synthetics. A cob cottage,cobb, however, might be the ultimate expression of ecological design, a structure so attuned to its surroundings that its creators refer to it as "an ecstatic house."

The authors build a house the way others create a natural garden. They use the oldest, most available materials imaginable--earth, clay, sand, straw, and water--and blend them to redefine the future (and past) of building. Cob (the word comes from an Old English root, meaning "lump") is a mixture of non-toxic, recyclable, and often free materials. Building with cob requires no forms, no cement, and no machinery of any kind. Builders actually sculpt their structures by hand.

Building with earth is nothing new to America; the oldest structures on the continent were built with adobe bricks. Adobe, however, has been geographically limited to the Southwest. The limits of cob are defined only by the builder's imagination.
Cob offers answers regarding our role in Nature, family and society, about why we feel the ways that we do, about what's missing in our lives. Cob comes as a revelation, a key to a saner world.

Cob has been a traditional building process for millennia in Europe, even in rainy and windy climates like the British Isles, where many cob buildings still serve as family homes after hundreds of years. The technique is newly arrived to the Americas, and, as with so many social trends, the early adopters are in the Pacific Northwest.

Cob houses (or cottages, since they are always efficiently small by American construction standards) are not only compatible with their surroundings, they ARE their surroundings, literally rising up from the earth. They are full of light, energy-efficient, and cozy, with curved walls and built-in, whimsical touches. They are delightful. They are ecstatic.


Ianto Evans

Ianto Evans is an applied ecologist, landscape architect, inventor, and teacher with building experience on six continents. Cob is traditional in his homeland, Wales. In addition to teaching ecological building, Ianto has consulted with USAID, the World Bank, the Peace Corps, and several national governments.

Michael G. Smith

Michael G. Smith teaches practical workshops and consults on cob construction, natural building, and permaculture. He is the author of The Cobber's Companion: How to Build Your Own Earthen Home and co-editor of The Art of Natural Building: Design, Construction, Resources.

Linda Smiley

Linda Smiley teaches workshops on cob, sculpting sacred spaces, intuitive design, and natural plasters and finishes. With a background as a recreational therapist, she specializes in helping people use natural building as a tool for personal transformation and healing.


Building a Cob Cottage Step-by-Step excerpted from Part II: Building the Cob Cottage

EVERY COB BUILDING IS UNIQUE, but most require the same basic steps. The order of some of these steps is critical; others can be rearranged as desired. For a first-time builder, it can be very useful to map out the sequence of all construction tasks. Following is a sample sequence to help you think through your project to completion before you begin. The next ten chapters walk through each of these steps in great detail.

* Select your building site very carefully, for best exposure to winter sun and for good drainage. * Decide in advance roughly what spaces, shapes, and features you will need, both indoors and out, based on the scale of your own activities. Make many sketches and models. Keep the building as small as possible. If you need more than 400 square feet, consider phasing the project to complete the most essential sections first. * Work on a scale model of the building, including site features such as trees and slope. * Decide the wall plan in detail, especially where doors connect the indoors with outdoors. Design the roof at this point, including the roof and how it is supported. Make a full-sized mock-up of the building on the site. Spend time in it, and imagine what it would be like to live there. * Assemble on-site all building materials you will need for enclosure, including glass, lumber, rocks, hardware, pipes, wires, and so forth. Gather your tools, scaffolding, and water storage. * Check your soil, and assess by making test mixes and test blocks what needs to be added for the best cob mix. Measure your proportions and calculate the amounts of sand, clay soil, and straw you will need. Plan out and prepare mixing spaces close to the building. * Arrange delivery of sand, clay soil, and straw as needed. Store deliveries close to and uphill from the building, in locations that won't impede work. Make sure straw is stored under cover, off the ground. * Stake out your design and finished levels precisely on the site using many strong, firmly driven stakes. Adjust for the last time. * Clear and level as little as possible. Grade away from the building so that water runs away on all sides. Set aside excavated soil for gardening or making cob. * Dig drainage and foundation trenches, lay in drainpipe, insulation, plumbing, and wire connections; backfill trenches immediately with drain rock. * Build the foundation stemwall, setting in door frames or frame anchors and joists if floor will be suspended. Leave openings for utilities and water lines in and out. * Tamp the subfloor, lay several inches of drain rock, and, if you will be using an earthen or other mass floor, lay the floor base coat. * Frame the roof, either on permanent posts or on temporary posts that will be removed when the walls are complete. You may also wait until the cob is nearly finished before framing the roof. * Experiment with cob mixing techniques -- for speed, ease, enjoyment, and different numbers of workers. Concentrate on gradual improvements. Apply your mix, probably at first by fork, trodden, then using "Gaab cob" or cob loaves. Sew it all together solidly with your fingers or a "cobber's thumb." Try to raise all the cob walls at the same rate. * Make sure you build vertical or tapered walls; don't leave big bulges or hollows. * Pare each new part with a machete or handsaw before it gets too hard, leaving it ready to plaster as you build. * Set pipes, wires, outlets, junction boxes, and so on into the walls as you build. * Build in windows as you go. Bury "deadmen" in the walls, wooden anchors to which you can later attach door frames, shelving, countertops, and so on. * Sculpt built-in furniture, bookshelves, niches, and alcoves. * Let the walls dry and settle somewhat, then build loft or second-story beams, joists, and ledgers directly into the cob if the wall is loadbearing. * Locate roof deadmen one and a half to two feet down from the rafters. Complete the walls. * If the roof is on, you can now enclose and heat the building. If not, now is the time to build the roof. If the roof will be heavy, allow the cob to dry throughout first. * Do final ceiling work. * Finish interior built-in woodwork, counters, cabinets, interior door frames, and plumbing fixtures. * Apply interior plaster. * Lay a finish coat on floor. Seal an earthen floor with linseed oil and beeswax. * When interior plaster is dry, apply natural paint, lime wash, or alis. * Plaster the exterior, if desired. * Have a big party! Invite everyone who helped you build.


The Earth-Sheltered House

The Earth-Sheltered House

By Malcolm Wells

The Earth-Sheltered House is a classic in the annals of sustainable building books, written by a legend in the field of environmentally responsible architecture. Malcolm Wells has a fundamentally different way of looking at the design and building process, and his iconoclastic perspective has never been more apparent.

Wells's work is revolutionary, but readers will find his message to be pure common sense. Earth sheltering offers superior comfort with minimal energy input, and it is adaptable to diverse terrains as well as a variety of architectural aesthetics.

Available in: Paperback

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The Earth-Sheltered House

Malcolm Wells

Paperback $29.95

The Cob Builders Handbook

The Cob Builders Handbook

By Becky Bee

Cob (an old English word for lump) is old-fashioned concrete, made out of a mixture of clay, sand, and straw. Becky Bee's manual is a friendly guide to making your own earth structure, with chapters on design, foundations, floors, windows and doors, finishes, and of course, making glorious cob.

"I believe that building with cob is a way to recreate community and experience the joy of working together while taking back the right to build our own homes and look after our Mother Earth."

She loves doing something that makes sense in a world where lots of things don't.

Available in: Paperback

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The Cob Builders Handbook

Becky Bee

Paperback $23.95

Passive Solar Architecture

Passive Solar Architecture

By David Bainbridge and Ken Haggard

New buildings can be designed to be solar oriented, naturally heated and cooled, naturally lit and ventilated, and made with renewable, sustainable materials—no matter the location or climate.

In this comprehensive overview of passive solar design, two of America’s solar pioneers give homeowners, architects, designers, and builders the keys to successfully harnessing the sun and maximizing climate resources for heating, cooling, ventilation, and daylighting.

Bainbridge and Haggard draw upon examples from their own experiences, as well as those of others, of more than three decades to offer both overarching principles as well as the details and formulas needed to successfully design a more comfortable, healthy, and secure place in which to live, laugh, dance, and be comfortable. Even if the power goes off.

Passive Solar Architecture also discusses “greener” and more-sustainable building materials and how to use them, and explores the historical roots of green design that have made possible buildings that produce more energy and other resources than they use.

Available in: Hardcover

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Passive Solar Architecture

David Bainbridge, Ken Haggard

Hardcover $85.00

The Natural Building Companion

The Natural Building Companion

By Jacob Deva Racusin and Ace McArleton

Natural buildings not only bring satisfaction to their makers and joy to their occupants, they also leave the gentlest footprint on the environment. In this complete reference to natural building philosophy, design, and technique, Jacob Deva Racusin and Ace McArleton walk builders through planning and construction, offering step-by-step instructions on:

  • siting and site analysis
  • choosing materials
  • integrating basic structural considerations into a design
  • strategies for heating/cooling efficiency and moisture management
  • planning for acoustics
  • developing an integrative design
  • navigating budgeting, code compliance, and project management
  • creating the foundation, wall system, roof, and floors
  • selecting and making plasters and paints
  • evaluating options for mechanical and utility systems
  • protecting against fire and insects
  • integrating structures within landscape, climate, and human communities

...and more

Applicable to building in climates that are cold and wet, hot and dry, or somewhere in-between, The Natural Building Companion provides the tools necessary to understand basic principles of building science, including structural and thermal engineering, and hydrodynamics. This guide offers thorough, up-to-date, and advanced installation details and performance characteristics of straw-bale, straw-clay, woodchip-clay, and cellulose wall systems, as well as earthen and stone wall systems and a variety of framing, roofing, flooring, mechanical system, and finishing options. This fully-illustrated volume informs professionals making the transition from conventional building, homeowners embarking on their own construction, or green builders who want comprehensive guidance on natural-building options. A State-of-the-Art Resource for Natural Builders The Natural Building Companion is a part of The Yestermorrow Design/Build Library and includes an instructional DVD.

Available in: Paperback

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The Natural Building Companion

Jacob Deva Racusin, Ace McArleton

Paperback $59.95