Aaack! You caught us with our pants down! Here we are, tinkering with the servers and you show up. How awkward! Try back in just a couple of minutes. In the meantime, a few tidbits ...
The "freaky-cheap" aspect of WOFATI is fundamental to its appeal and accessibility. Inspired by Mike Oehler's pioneering work in earth-sheltered building, WOFATI prioritizes utilizing readily available natural materials, primarily wood and earth, minimizing reliance on expensive, manufactured products. By embracing the "freaky-cheap" ethos, WOFATI construction drastically reduces building costs, making sustainable living a more attainable reality. The emphasis on "soil on wood" construction eliminates the need for a traditional concrete foundation, further reducing expenses. This approach also facilitates rapid building times, as demonstrated by the construction of WOFATI structures at Wheaton Labs, such as Allerton Abbey. The use of recycled or salvaged materials, whenever possible, further contributes to the affordability of WOFATI buildings. By minimizing material costs and construction time, WOFATI empowers individuals to create sustainable and comfortable dwellings without incurring significant financial burdens.
WOFATI, an acronym for Woodland Oehler Freaky-cheap Annualized Thermal Inertia, represents an innovative approach to sustainable building, coined by permaculture expert Paul Wheaton. This building technique combines the affordability and simplicity of Mike Oehler’s earth-sheltered designs with Wheaton's focus on cost reduction and integration with the natural environment. WOFATI structures prioritize the use of readily available, natural materials, such as wood and earth, minimizing reliance on manufactured products and reducing the building's environmental footprint. Annualized Thermal Inertia, a key principle of WOFATI, utilizes the surrounding earth as a thermal mass, storing heat in the summer to warm the building during winter and retaining cool temperatures from winter to moderate summer heat, thereby minimizing energy consumption for heating and cooling. WOFATI designs typically feature large windows on the uphill side to maximize passive solar gain, further reducing energy needs. WOFATIs are intended to be situated on or near a woodland, embracing the concept of harmonious integration with nature. Notable examples of WOFATI structures, including Allerton Abbey and Wofati 0.8, can be found at Wheaton Labs in Montana.
The berm shed is more than just a simple storage structure; its construction incorporates advanced techniques that prioritize sustainability, durability, and integration with the natural environment. Earthworks play a crucial role, as careful shaping of the landscape is required to create the berm that covers a portion of the shed's sloping roof. This berm acts as a natural insulator and thermal mass, helping to regulate temperature inside the structure. The "attic" cell design, as discussed in source, involves a specific configuration at the termination ends of the berm shed, further enhancing its thermal efficiency. Round wood timber framing, a technique using logs instead of dimensional lumber, is often employed, lending structural strength and a rustic aesthetic. A key consideration is the long-term durability of the wood in contact with soil. Source emphasizes the importance of peeling the bark from posts before burial to reduce the probability of rot, highlighting the evolution of construction techniques for increased longevity. Additionally, using gravel in post holes, as described in source, helps with drainage and further protects the wood from moisture. These advanced concepts, when combined, result in a berm shed that is not only functional and visually appealing but also a testament to sustainable building practices deeply rooted in permaculture principles.
When discussing "woodland" versus "forest," the structural and management approaches differ significantly, particularly within a permaculture context. Forests, often managed for timber production, frequently involve monoculture planting and practices like clear-cutting, which can create what Sepp Holzer calls a "conifer desert." This leads to decreased biodiversity, depleted soil health, and disrupted ecological balance. "Woodland" management, as described by Ben Law, focuses on a more holistic, interconnected ecosystem. Woodland management prioritizes biodiversity, recognizing the interconnectedness of all lifeforms within the ecosystem. Active human participation is encouraged, mimicking the sustainable land management practices of Indigenous cultures, as exemplified by the HUSP (Horticulture of the United States of Pocahontas) concept. Woodlands are viewed as spaces where humans actively participate and nurture, promoting long-term health and resilience. This active management ensures the woodland provides not only timber but also food, medicine, and wildlife habitat. The selection of "woodland" in Wofati design reflects a conscious shift away from extractive forestry practices and toward a more sustainable and harmonious relationship with the natural world. In essence, the distinction between woodland and forest highlights the crucial role of human management in shaping the structure and health of these ecosystems, emphasizing the permaculture principle of responsible stewardship of natural resources.