Popoyo

The Popoyo house is made of locally available natural materials and has all curved walls.
The Popoyo house is made of locally available natural materials and has all curved walls.

“Structurally speaking, the arch and curved walls create a much stronger building system. Just look at how long roman aquaducts have withstood time. By keeping the walls curved, you eliminate the need for costly rebar and concrete.

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Earthbag homes–easiest and cheapest green build

Earthbag building: The greatest advantage is that it is one of the cheapest and easiest ways to construct a green home which with some hard work can be done by the homeowner.
Earthbag building: The greatest advantage is that it is one of the cheapest and easiest ways to construct a green home which with some hard work can be done by the homeowner.

“Earthbag construction is a type of rammed earth construction where durable bags, usually polypropylene or burlap, are filled with local earth or other materials, laid in courses and tamped down into place to form walls. The greatest advantage is that it is one of the cheapest and easiest ways to construct a green home which with some hard work can be done by the homeowner.

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Foamed Lightweight Concrete

Foamed concrete and foamed cement made with Allied's foam have very fine pore structure, unlike that made with conventional proteinaceous and surfactant foams.
Foamed concrete and foamed cement made with Allied’s foam have very fine pore structure, unlike that made with conventional proteinaceous and surfactant foams.

Natural builders strive to reduce their use of cement due to high cost and adverse environmental impacts. Sustainability conscious natural builders might use ferrocement, cement plaster or micro concrete roofing tiles which use relatively small amounts of cement, and avoid more concrete intensive materials such as concrete block. Foamed lightweight concrete is another material that could be added to the list of green building materials.

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