Announcing natural building course dates for 2017

We are thrilled to announce that both courses will be held at Jakkalskloof bio-dynamic training farm in Swellendam this year.

Dates for 2017:

  • 19 – 25 March: Natural building course: materials and techniques (7 category 1 SACAP credits) ~ Jakkalskloof farm
  •  14 October: Natural building course: materials and techniques (7 category 1 SACAP credits) ~ Jakkalskloof farm

For more information please visit our course page or send us an email at naturalbuildingcollective@gmail.com to book your spot!

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Q&A with Paul Marais, award-winning architect specializing in rammed earth

First off, congratulations on winning the Afrisam-SAIA Award for Sustainable Architecture + Innovation for Sustainable Product/Technology for your design of the rammed earth Otto cottage in Maun, Botswana. 

Thank you, I am very pleased for recognition of this off grid, rammed earth building , where I designed and built the house, energy & water systems and sewerage.

The award-winning rammed earth Otto cottage in Maun, Botswana. Designed and built by Paul Marais. Photo courtesy of Paul Marais.

The award-winning rammed earth Otto cottage in Maun, Botswana. Designed and built by Paul Marais. Photo courtesy of Paul Marais.

How did you first get involved in natural building?

I have been always interested in natural buildings and as a student studied natural building in Malawi and Zambia.  I have travelled a lot in remote Africa and have an interest in indigenous architecture which is both material and energy efficient.  Continue reading

Q&A with Jill Hogan, a pioneer of natural building in South Africa

How did you first get involved in natural building? 

Jill Hogan at Cobbit's Cottage.

Jill Hogan at Cobbit’s Cottage.

In the early 90’s my life changed completely and I found my self alone. In wanting to be part of a community, I met Hurta Stuurman and did some work with her on her cob house at Hermanus/Stanford and knew that this is what I wanted to do. It combined my concept of Permaculture with creating an organic home for myself, while allowing me to use my knowledge of earth/clay.

Tell us about your journey.

In the 70’s I worked for a nursery. I had a pot plant business, but was exposed to organic veggie gardening and became more and  more interested. At the same time, I started doing pottery and assisted in teach children with learning disabilities now known as ADHD, and so was exposed to lateral thinking.

In the 80’s I went back to “school” and did a fine arts majoring in ceramics.

In 1992 I was introduced to Permaculture and did the design course with John Wilson from Fambidanzia, at Tlholego in Rustenberg, and I developed a true passion for sustainable development.

Someone was setting up an Eco Village in McGregor and I was drawn to become one of the original developers. But personality clashes among the original six members caused the project to collapse, sending me into McGregor itself where I bought a piece of land in the town. Continue reading

Guest post: Rammed earth on the rise

By Mary Anne Constable

This post first appeared on Earthworks Magazine in April 2016. We are re-posting it here with the permission of  Young Africa Publishing and author Mary-Anne Constable.

Rammed earth in Botswana

House Freeman is cool in the hot Botswana desert thanks to an evaporative cooling system, which draws air over solar powered sprinklers, a living roof and thick, thermally efficient walls. The shuttering was reused in, for example, the roof, so nothing was wasted.

Of more than twenty different types of earth construction techniques, rammed earth has been lauded for its durability, sophisticated environmental performance and striking earthen beauty.

Rammed earth construction in South Africa has generally been stigmatised as a substandard and primitive building construction method reserved ‘for the poor’. Yet it is now gaining popularity for community social projects, as well as among wealthier clients. Although a building standard is yet to be formalised in South Africa, the rammed earth industry is established in many African countries, Europe, United States and Australia. This means plenty of expertise and established international building standards already exist and this construction method is now far removed from its primitive roots.

Continue reading

Transition Ethics: The Art of Compromise

This post first appeared on Numundo on 16 February 2016. We are re-posting it here with the permission of  Shayna Gladstone and author Scott Gallant.

To introduce the post, we’d like to share with you why we were so excited to read Scott’s post. Written by Scott Gallant from Rancho Mastatal Sustainability Education Center in Costa Rica, the post is based on his experience teaching the three permaculture ethics during the center’s Permaculture Design Courses, and the realization that a fourth ethic is required in order to facilitate a conversation about compromise.  They filled the gap with the Transition Ethic. Scott quotes Jessi Bloom and Dave Boehnlein, authors of Practical Permaculture, who acknowledge that “the transition ethic says that no one is going from zero to sustainable overnight. Making the transition takes time.” He goes on to say that “We have to meet people where they are at.  We must understand their cultural context.” Continue reading

From the ground up ~ approaches to building a foundation for your natural building

Foundations for conventional building have, to a large extent, a one size fits all approach regardless of the type of ground you are building on i.e. a concrete and steel foundation that works equally well on all types of earth and varies only slightly in its design. It requires little thought and has been proven to be effective. The cement in concrete provides the compressive strength, and the steel tensile strength to resist cracking. It does however come at a cost to both your pocket and the environment.

When building with earth your foundation needs to be well considered as the integrity of your building rests here. Decisions you make about your foundation depend on the materials you have available, the type of ground you have to build on and what carbon footprint you want to leave. The goal should be to create foundations that are hard enough, move uniformly and resist cracking for the walls above it. Foundations will always have a higher Mpa value than the walls, however it does not need to be excessive. A 4 Mpa foundation is sufficient for a 1.6 Mpa mud-brick wall, which most types of foundations are suitable for. Furthermore, if after levelling the site the undisturbed earth is hard enough, foundations may well be unnecessary.

There are several strategies for foundations depending on the type of ground that you are building on. In this blog post, I discuss the four types of ground, (1) uniformly hard, (2) uniformly soft, (3) hard and soft, and (4) clay, their challenges and several strategies you may incorporate into your design. The discussion is quite technical in some areas so I recommend that you read my three-part series on understanding earth first. Continue reading

First course of 2016

Poster 04_2016 sml