Like in the local tradition, earth is the main construction material. The attention in limiting imported tecnology unknown by the locals was crucial in order to preserve the auto-construction techniques of the local population. Most of all this was taken into account in order to avoid the creation of economic dependence, often generated by this kind of benefic projects. These concerns prompted the use of the nubian vault as a principal construction method. This technique is based on the use of raw earth roofing, built without the use of metal sheets, wood or molds. It enabled the creation of environments with particularly comfortable conditions.  

The construction of the classrooms has been done following the standard dimensions provided by the ministry of education, in order to give knowledge of the existence of these standards to the locals. Furthermore the use of standard dimensions has driven the designers to define an hybrid structural system which along the vaults uses an overturned T cement truss in order to cover longer span. Two T trusses plus three vaults create the module for one classroom. This modular system, after only 10 days necessary to set up the construction site and regulations, gives the possibility to build a complex completely out of earth with tools present in the village.

The structure of the building with foundations, walls and roofing was realized during the dry season over three months whilst the finishings like plaster, flooring and furniture were completed by the end of the following season. 

The construction of the school costed overall around € 26.000. 

In loco production of earth bricks

image: Emilio Caravatti, Matteo Caravatti | some rights reserved

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Nubian vaults

image: Emilio Caravatti, Matteo Caravatti | some rights reserved

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Construction site materials

image: Emilio Caravatti, Matteo Caravatti | some rights reserved

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