The porch’s roof is made of clear plastic sheets, to allow light and heat in the winter, and is lined with shade cloth in the summer. A PORCH was then built on the south side of the house-and later moved to the north side to make space for a greenhouse. We literally built a house from the dirt beneath our feet.Ī few weeks later, in May, we added the MUD ROOM, as a connecting space between the first two modules. The soil we removed to grade the site and build the foundation was then used to make the earth blocks for the walls. Chris Reinhart designed and led the build workshop for this addition. In April 2014, we added a BEDROOM, another 12 ft by 12 ft CEB module, also with a loft. This was our home for a few months, while we worked on subsequent additions, and eventually became the kitchen. The basic structure was built during a 5-day workshop and the interiors finished over the course of 3 months. Its walls are made from compressed earth blocks pressed with Open Source Ecology’s CEB Press. It was initially a MICROHOUSE, a 12 foot by 12 foot structure with a small kitchen, a bathroom and a loft. Our first prototype was designed by Chris Reinhart and built on October 2013. We’ve been experimenting with and developing this method since 2013. Rather than tackling a large project in one go, our approach enables us to start with a small structure-a microhouse, for example-and then keep adding to it throughout subsequent builds. And for those who wish to build a business on top of this system, we are developing a training program geared specifically to entrepreneur-builders.Ī MODULAR SYSTEM FACILITATES INCREMENTAL BUILDING. To further encourage adoption, replication and entrepreneurship, all workshop/build organization materials-from workflow and budget to publicity plan and logistics-are also open source. The barn-raising approach not only enables rapid builds, but also provides organizers with a stream of revenue that helps offset the cost of materials. This means that it is possible to build the shell of a 24 x 16 ft structure in 2 days, Building a house may be a labor of love, but it doesn’t have to take a lifetime.ĭuring workshops, participants acquire skills and hands-on experience with the system in order to organize their own builds. Throughout several experiments, we learned that it is possible for a group of 35 people to build and install 20 wall modules in 1 day and 6 roof modules in another day. The modularity of the system enables extremely rapid builds, as modules are first built concurrently by teams and then quickly assembled on site to form the building. In our modern version of barn-raising, builds typically take place in 6-day workshops, during which participants collaborate to build a structure. In the 18th and 19th century, rural communities came together to build barns for each of their members. THIS OPEN SOURCE AND MODULAR APPROACH TO BUILDING ALSO ALLOWS FOR SOCIAL PRODUCTION. A 4×8 ft insulated wall module, for example, takes a team of two people 1 hour to build. The modules on the library are designed specifically to be easily and quickly built by non-professional builders. Once imported into the application, modules can be simply dragged and dropped to create a building design. The library can be directly imported into Sweet Home 3D-an open source interior design application. The library is made available online in standard CAD formats compatible with open source software applications such as FreeCAD and Blender. Our OSHWA-compatible license also ensures that you are free to profit from these designs-by using them, for example, in design and/or build contractor work. This means that everyone is free to use, modify and redistribute them. And the larger the number of contributions, the greater the diversity of approaches and solutions we can choose from.Īll modules and procedures are OPEN SOURCE-forever and with no exceptions. A greater number of designers means faster development. A shared pool of designs means that each one of us does not have to reinvent the wheel. This means that the system pays special attention to water-catchment, passive heating and cooling, photovoltaics, thermal mass, insulation, off-grid sanitation, and hydronic heat.ĭesigns and build instructions are contributed by designers around the world and are reviewed by experienced builders. Our approach focuses on state of the art and ecological housing. AT THE HEART OF THE PROJECT IS A LIBRARY OF BUILDING MODULES-walls, windows, doors, roof, utility and functional modules, etc.-that can be combined to create a variety of structures: studios, homes, multi-family houses, greenhouses, barns, workshops, schools, offices, etc.
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