Pemba, a small Tanzanian island off of Africa's Eastern coast, is undergoing something of a construction boom. With half of the population aged under 30 and a culture in which a man must build a house before he can get married, a wave of new informal housing is sweeping the island. Historically, construction methods used by the islanders have been problematic: traditional wattle & daub construction typically survives for just 5-7 years; its replacement, bricks made of coral, not only require large amounts of energy to extract but have a devastating effect on the environment; and modern cement bricks most be imported at high costs. Sensing an opportunity to help the islanders at a critical time in their development, Canadian NGO Community Forests International is promoting a solution that combines the economy and sustainability of wattle & daub with the durability of masonry: Interlocking Stabilized Compressed Earth Blocks (ISCEBs). Find out how this simple technology can help the island community after the break.
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