Metaefficient: Trombe Walls

Incorporating a Trombe Wall into a house is one of the most efficient ways to capture the heat of the sun. They work in the mildest to the most severe of climates. Basically, sunlight strikes the wall through a window, and the Trombe Wall heats up, causing warm air to flow into a room.

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Using Eggshells To Build Walls In Japan

In Japan, there’s a product called “Shell Walls” which allows walls to be plastered with a paste made out of waste eggshells. Making full use of the eggshell’s porous structure, Green Techno 21 created Shell Walls which withstand humidity. The eggshell plaster is hazard-free and fireproof as it is made from natural calcium carbonate. After […]

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