Workshops and Events

Listed Chronologically


Introduction to Cob and Natural Building
April 10 - 15, 2017
Maricopa, California

Cob building combines clay sediment, sand, fiber, and water, and is hand sculpted to form walls, benches, ovens, and fireplaces. Cob building makes use of readily available, affordable, non-toxic materials to build beautiful, organic structures. 

The course is appropriate for both first-time builders and for professionals in the building trade who are interested in natural materials. In this cob workshop, we focus on the characteristics of the natural materials most commonly used in construction: clay soil, sand, and fibers. Our main focus will be cob, though we will touch on various other building techniques that utilize the same materials, including adobe block, light straw-clay, wattle and daub, and plasters. We will discuss how to find and choose appropriate soil for construction, how to create various mixes, how to attach wood to earthen walls, and how to use earthen materials to build walls, sculpt niches, shelves, and furniture.

See www.quailsprings.org for more information.

Insulating Straw Walls
April 21 - 23
Rumsey, California

Straw bale construction, light straw-clay walls, base coat straw/clay plasters, finding and testing clay soils, thermal properties of nantural materials, passive solar home design.

See strawclaywood.com for more information.

Passive House Builder Training
April 21 - 24
Petersborough, Ontario, Canada

The Passive House Building training will show you how to meet this challenging standard… all the tips and tricks that make it possible to make super efficient and air tight buildings, affordably and practically Passive House Builder Training offers two significant business advantages:

  •  It sets you apart from other builders, the Passive House approach is different, better, and saves more money for your customers
  • You’ll be one of the first to establish credentials in a growing market that is still largely untapped

See endeavourcentre.org for more information.

Hemp Building Course
April 26 - 27
Guanacaste, Costa Rica

Introduction to the material and uses. Structural details, Mixing and Casting. Roof and floor applications. Completing tops of walls and around window and door apertures. Finishes and Hemp Plastering.

Contact ashleyATzegreenlab.com

Earth Floors & Plaster
April 28 - 30
Rumsey, California

Earthen floors step-by-step, wall preperation for plasters, base coat earthen plasters, foundations and drainage, construction sequence & management, tour of local natural homes.

See strawclaywood.com for more information.

Natural Finishes
May 5 - 7
Rumsey, California

Clay base coat and finish plasters, lime plaster for wet conditions, earthen floor installation and finishing, mix testing for floors and plasters, make your own natural paints, protecting natural walls from moisture.

See strawclaywood.com for more information.

Superadobe Dome Workshop
May 22 - 29
Paterna Calabro, Italy

CalEarth Institute in collaboration with Vide Terra have organized this 8 day intensive course. During the workshop a 2 meter earth dome with a door and window will be built. The purpose of the course is to give the theoretical and practical tools useful to design and build a small earth structure or living space.

See www.videterra.org for more information.

Co-Create an Earthbag Home
May 30 - Sept. 29
Taos, New Mexico

This is a four month project, building an earth bag home from the earth up.

MONTH 1: Building a mechanical room, bag work, perimeter insulation, and vapor barrier. Innovative trench grade beam footing.

MONTH 2: Concrete footings and concrete bond beam. 2 x 6 south facing framed wall. Roof framed and sheathed

MONTH 3: Installing fixed and operable windows, seal windows, exterior plaster prep and plaster, pouring finish floors, putting up ceiling, building bottle and can walls

MONTH 4: Plastering interior walls, kitchen and bathroom cabinets, building and installing doors. Finish plaster exterior. Landscaping.

See www.earthandsunsustainablebuilders.com for more information.

Clayfest 2017
June 12 - 17
Lincoln, UK

Our theme explores the relationships between Earth Building and other materials, construction and design and training, thinking about building bridges through knowledge, skills, research and training. This year we want to combine teaching core skills at beginners, semi-skilled and skilled levels with a spirit of curiosity and invention. Earth building is having a renaissance with people trying many new ways to work with some of the oldest materials and techniques. From the structural to aesthetic, thermal properties to colour we hope to encourage and show that earth in buildings can exceed all expectations. Last year saw the second only ever rammed earth vault, the year before the first turf wall in Scotland in a very long time. This year what will it be?, stoves that heat and cook by burning straw, industrial clay and hemp and some clay and lime magic.

See ebuki.co for more iniformation.

Timber Framing and Cordwood Workshop
June 17 - 21
Barcelona, Spain

Rob and Jaki Roy of Earthwood Building School (www.cordwoodmasonry.com) are conducting a 5-day Comprehensive (Timber Framing and Cordwood) Workshop near Barcelona, Spain with the Can Comú Permaculture Demonstration Site.

See 12pdesign.net for more information.

Everything Earthen
July 8 - 14
Rockaway Beach, Oregon

Experience cob and so much more. This is an in-depth overview of how to source, process, mix, and transform common earth materials into beautiful housing and art. Learn how to create walls from cob/adobe, wattle and daub, rammed earth, straw clay, wood chip clay, straw bales, and more. Learn to mix and apply plasters of cob (adobe), cement, and lime. Also discover mixing and application of earthen paints and lime paints. Hands-on instruction, lectures and slides.

See www.earthenhand.com for more information.

Youth Cob Basics
August 2 - 30
Rockaway Beach, Oregon

Math meets mud in this new course. Monolithic earthen domes have been a common form of shelter around the world for eons. They can make great root cellars or garden sheds, and can easily endure the elements with a roof. Learn to construct a small catenary dome over four weekend classes. Attend some or all weekends, but we recommend all. It's going to be technical and fun!

See www.earthenhand.com for more information.

Decorative Clay Plasters
August 5 - 6
Rockaway Beach, Oregon

Learn the ancient art of mixing and plastering with clay, sand, and natural fibers. We will try out several different methods of application, and focus on the artistic possibilities using adobe. Have fun and get creative!

See www.earthenhand.com for more information.

Cob Dome Construction
August 6 - 28
Rockaway Beach, Oregon

For ages 10 - 17, and parents are welcome too. Attend any number of classes. Have fun playing with mud as a sculpture and building material. Learn something new this summer!Tuesday evenings, 3:00pm - 6:00pm

See www.earthenhand.com for more information.

Basics of Natural Building
Sept 2 - 4
Maricopa, California

This will be a very introductory exploration into the world of earthen and natural materials.  Learn how to source clay soils and other materials, make cob and adobe, and help build a cob wall.  Visit many examples of natural buildings on our building tour.  

  • Course Tuition: $400 (Early bird discount $350, if registered and paid by July 15th)
  • Course fee includes: Instruction, catered meals and camping accommodations

Contact Sasha Rabin, sashaATquailsprings.org for more information.

See On-Going Workshops for more listings.


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I specifically disclaim any warranty, either expressed or implied, concerning the information on these pages. Neither I nor any of the advisor/consultants associated with this site will have liability for loss, damage, or injury, resulting from the use of any information found on this, or any other page at this site. Kelly Hart, Hartworks LLC.