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Niall in Swaziland writes regarding an evaporative cooling technical brief download compiled by Neil Noble. He is working with a permaculture NGO in Swaziland and currently in the process of helping to design a food storage / processing building. The processing part will be built using earth-bags and he is looking to utilise the technologies and techniques found in the technical brief and further information from a document by Prof Susanta K Roy to make a cold storage room approx 3m x 7m. He is considering reducing costs by replacing double skin red brick with a single skin of 9 ½ inch cement blocks that will then be filled up with sand. Any further information about the technique and other experiences would be much appreciated

Niall in Swaziland writes regarding an evaporative cooling technical brief download compiled by Neil Noble. He is working with a permaculture NGO in Swaziland and currently in the process of helping to design a food storage / processing building. The processing part will be built using earth-bags and he is looking to utilise the technologies and techniques found in the technical brief and further information from a document by Prof Susanta K Roy to make a cold storage room approx 3m x 7m. He is considering reducing costs by replacing double skin red brick with a single skin of 9 ½ inch cement blocks that will then be filled up with sand. Any further information about the technique and other experiences would be much appreciated