Preparação para o curso do Belanko

A menos de uma semana para o início do curso de Construção Natural com Jorge Belanko, voluntários, funcionários e aprendizes do Tibá correm para deixar tudo pronto. Os últimos dias tem sido de trabalho intenso na preparação da estrutura que será trabalhada por professor e alunos no curso que começa na próxima segunda-feira (16). Com a laje sustentada por “cascajes” – tecnologia desenvolvida por Johan Van Lengen no Tibá -, tem projeto para abrigar uma extensão da cozinha, e banheiros no segundo andar.

Já na futura casa da família Flores-Van Lengen, a corrida é para terminar a estrutura de bambu que vai dar sustentação ao teto verde que cobrirá toda a parte central da casa. Com 81 m² de área, o teto requer um trabalho minucioso para a seleção dos bambus que serão utilizados. É preciso encaixá-los como um quebra cabeça, conciliando tamanhos e diâmetros diferentes, a fim de reduzir ao máximo os espaços entre uns e outros. O trabalho está sendo comandado pelo marceneiro Aroilton de Oliveira.

O curso

No próximo domingo (15) começam a chegar os alunos para o curso de Construção Natural com o mestre da Bioconstrução, o argentino Jorge Belanko. Trabalhando com construção desde os seus 12 anos, Belanko desenvolveu técnicas para a utilização de materiais naturais, ganhando reconhecimento internacional, como pode ser visto no documentário “El barro, las manos, la casa”.

Esta é a segunda passagem de Belanko pelo Tibá, tendo deixado um forno todo feito de barro como herança de seu primeiro curso no ano passado, assim como uma parede feita utilizando uma técnica chamada chorizo, pois se serve de chumaços de palha embebidos em uma mistura de barro , e um belo trabalho em hiper adobe. As paredes foram feitas na mesma área em que continuará trabalhando neste curso.

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Introdução à Permacultura no Tibá

O Tibá realizou no último final de semana (17 e 18 de junho) o curso de “Introdução à Permacultura”. As aulas, ministradas pela engenheira florestal Melina Goulart, pelo arquiteto Michel Habib, além do fundador do Tibá, Johan Van Legen, contaram com a participação de oito alunos interessados em interagir de forma mais harmônica com o meio em que vivem.

O curso, dividido em dois dias de atividades, teve parte teórica, em que foram conceituados os princípios da agroecologia e bioconstrução.

Na parte prática, Michael Habib ensinou aos alunos como fazer tijolos de adobe utilizando somente argila do próprio terreno, areia e esterco. Em seguida passou as técnicas da fabricação de um cascaje, desenvolvida por Johan Van legen para a construção de finos e resistentes painéis abobadados pré-fabricados, utilizados em lajes ou pisos, com pequenas quantidades de cimento.

Já Melina Goulart passou os princípios básicos da preparação de um Sistema Agroflorestal, técnica divulgada por Ernest Gotsch que mimetiza processos naturais para o cultivo de alimento e árvores por meio da cooperação de espécies. Melina e os alunos fizeram um “ninho” de agrofloresta, em que plantaram inhame, rabanete, algodão, tomate, milho, mamão, além de algumas espécies de arvores não frutíferas.

Ao final do curso, os participantes receberam certificados de participação e partiram levando na bagagem noções de respeito ao solo, à água, sistemas de produção vegetal, energias renováveis, bioconstrução, dando mais um passo em busca da sustentabilidade ecológica.

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The BASON now in Tocantins…

Latest Bason premiered at the quilombola community of Cocalim in the upper area of the Araguaia River as it flows along the border of Tocantins and Pará. The Tibá team spent 5 days building this unit as a alternative to just doing it in the woods. It is located near a spring used as a laundromat.

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Architecture without a Computer

Forty years ago I was working together with a mathematician to create a computer programme which would design buildings. The idea was that I would tell the programmer how an architect thinks when he is putting together a preliminary design. Of course, the input data had to be very well analyzed otherwise the output, the design would be unsuitable. We did put together three types of inputs.

1) All the data about the site: topography, vegetation, surrounding structures, climate, views, type of soil, all of which we called the “real world”. This way we got an input in order to create a “map of resistance” to show which parts would lead itself better to be built upon. All this was expressed in modules with numerical resistance values.

2) Data provided by the client giving the spaces one needed to carry out the future activities; usually known as the “list of spaces”. This list would include the amount of area needed for each activity, also expressed in similar sized modules and their requirements.

3) To bring this data together an “affinity matrix” was needed, showing the relationship between the activities, depending on the movement of people and materials. This matrix was expressed in nearness values, mobility and their reasons.

These three inputs were (in those days) put onto punch cards, which after going into a computer (again huge) would come out as preliminary designs of the building, expressed in floor plans. All went through a built-in evaluation process, analyzing the efficiency, economy and the flexibility of the design. One could request, for instance, twenty different layouts, but ask only for a printout of the five best ones.

It all worked out very well, although only a few people were involved in the initial applications. But what happened was an extraordinary experience: on looking at the printouts of the plans it seemed that the designer had seen them before, in other words they looked rather familiar. I noticed that, as being a professional, during the preparation,- that is the analysis of the input-, whereby one uses consciously his logic (the ‘left side’ of the brain), one’s intuition and creativity, as part the of the ‘right side’ of the brain, is also involved in creating a design. That is to say when the input data is ready, the design also is ready. Except that, we were never trained to access directly our creativity, it always became a search for a “solution”, as the first designs were called.

However, if one looks into one’s right side of the brain, in other words change the waves from beta into an alpha frequency, one is able to draw plans, one after the other, as if being in a trance. Once these plans are on paper, one goes back into beta waves, to logic; to be able to compare with the input data and see whether the plans have responded well. They do.

In other words, when we prepare the initial analysis (the three types of inputs) and are ready to go into alpha the design flows out on the paper in front of us. Of course we need the programme, but we do not need a computer, our right hemisphere has already done the job !

The question arises, how do we get into alpha and start drawing inspired plans ?

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South African Travels

Real McCoy Slow Food

Transkei adobe builder

Simple Circular Style, all front doors facing north

Family compound, all adobe walls, straw and zinc roofs, rain cathers, waterless toilets, vegetable gardens and corn fields, corals for goats and cows, fire wood and candle light, totally off the grid

 


Checking the mud mix during an adobe workshop at the Nelson Mandela Metropolitan University

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Beautiful new Hiperadobe wall

Thanks to everyone who came to make the Hiperadobe/Earthbag course on the weekend – in such a short time we were able to make this great wall for the food store as well as some of the retaining wall!

Incorporating various techniques we were able to see how easy it is to use this great building system with no prior knowledge about earth construction – we are looking forward to seeing what you build next at home…so send in your pics! The next course will be at the end of November so if you missed out for this one, see you then!

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New fogão a lenha/woodfired stove in Tibá!

We have finally built during the Natural Building course with Jorge Belanko, a wonderful ‘fogão a lenha’ with a drum oven. This is a type of wood-fired stove used traditionally in Brasil for cooking (where firewood is found in abundance), but the one we have built is much more efficient. This one utilises a minimal amount of small, thin pieces of wood, and a closed-door system, and the smoke produced from this quickly heats the hotplates for cooking and also the barrel oven.

It was constructed with a gravel-bag base, and on top of that solely adobe brick and cob with some re-bar for the grills. We are waiting for it to dry now so we put the finishing plaster on and inaugurate the oven with a pizza night!

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