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Otto Cottage - Paul Marais. Maun, Botswana.
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- Опубликовано: 27 окт 2016
- Otto Cottage is a small house in Maun Botswana made of natural materials comprising rammed earth, timber and locally harvested reeds. This water and waste neutral building minimises its impact both in its construction process and its ecological approach to energy consumption, demonstrating what can be achieved with natural materials in harmony with the environment, while being beautifully seductive at the same time.
Production Credits: Breinstorm Brand Architects, Annalet Steenkamp productions, The Kinetic.
I appreciate that Paul acknowledges that his designs use already existing African technologies and that he did not 'create or discover' these methods. It is very important this, for truth and posterity. Work well done.
Rammed Earth and evaporative technologies have been used all over the world including Africa. The great wall of China used this technology in much of the wall, and there are many places that still have these buildings all over the world.
"The oldest surviving rammed earth buildings are around 8000 years old and were built in areas with few trees, like the ancient city-states of Mesopotamia. The Romans introduced it into Europe.".
"Evaporative cooling systems have been used in principle in ancient China, Egypt, India, and Iran. Servants would fan air over water jars. Leonardo de Vinci experimented with a fan-driven cooling system.2 Reports of the first air conditioning systems with records of evaporative cooling appear as early as in the 2nd Century AD and the Chinese Han dynasty.3 In Medieval Persia, wind would be captured in wind traps and channeled over water in open cisterns. The water would then evaporate and cool the interior of the house.0 The Emperor Xuanzong of the Tang Dynasty had a “Cool Hall” built in his palace, which combined rotary fans, this time water-driven, with the effects of the spray from huge water-spewing fountains, producing the first air conditioning system with evaporative cooling."
Why we ever went to "stick homes" other than to get quick profits is just the antithesis of sustainability and yet these industries have a strangle-hold on building choices. Banks won't even finance ANY earth project UNLESS you have 3 comparable sales in the last 90 days. So this has to be completely self-financed. Hopefully more and more people will do this.
Beautiful, each one Unique, Geothermal functionality, Natural local Materials, and Artistic
Who can put dislike on this wonderful video only sick person.Well done job people!!!❤❤❤
excellent video, would love to see more examples of this architect. from Australia
Love this so awesome and inspiring to use techniques passed down through generations and keeping our ways alive
This is great.
Love it dear
Love this
Good idea 👍👍
Can we talk? This is great...
what you mix in soil to make rammed earth house
Deseo una casa así!❤️
how quickly is dust formed indoors?
It seems to me that it would quickly take on the same temperature as outdoors. What temerature range can one expect inside the finished structure vs outside? How quickly does the temperature inside fluctuate? Thanks!
that's the beauty of it; in fact all African traditional construction methods have this quality. Heat is slowly accumulated throughout the day by the material and is slowly lost throughout the night, loss of heat is accumulation of cold; so the day is cool inside the building and the night is warm. Remember, our days and nights are almost equal throughout the year. So by the time all heat is lost, the sun has come up and vice-versa
No, the walls are usually thicker than conventional brick walls and since the wall has a higher density, heat takes a lot to of time going from one side of the wall to the other: around 12 to 16 hours
Eu gostaria de entender melhor como deixar os vãos das portas e janelas,
Grato
Does anyone know of builders in Botswana that I can contact about having work like this done?
excellent vidio . please tall mi z ratio of z mixture
That one guy stretton has a similar image to Robert Redford..
correction: Using their hands ;)
Robert Redford builder...?
egaona69 ha haaa, I was wondering why he looks familiar 😂
What is the ratio pls.
between 5-15 cement, the best soil must have around 70% sand the rest its gravel and clay
suitable for rainy northern climates?
it deppend on quantity of stabilazers like cement or lime . If youre not a hippye rsrs you could use 15 % cement, and aditives
Be carefull with asumptions here...build a home is a big/expensive/time consuming proyect so better found your percentages in solid test, I can recomend this book: "Diseño de adobes estabilizados con emulsión asfáltica, universidad de Cuenca" from Arteaga and Loja (free pdf online) is a thesis research about BTC (like rammed earth but in blocks), they run lab test for compression, flexion, absorption percentage, and "water footprint" very important data, your concern is in page 121: a BTC with 10% of cement, submerged in water for 10 min get a "water footprint" of 0.7 mm.
So is not waterproof, that's why it is very common to "double wall" (not necessarily both of BTC/ramm.) so you can have rammed earth outside, proper water insulation in the middle+thermal insulation, and whatever you want for inside wall.
Well, best luck and good readings!