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Breathing Buildings design tool

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This tool calculates initial estimates of the openings and the e-stack equipment required to naturally ventilate a building (office or school) successfully. It is intended to be used by architects and engineers at the early stages of design. The tool uses average values for the: floor area, buoyancy head, glazing area, glazing transmissivity, peak occupancy, lighting and equipment. However, if this information is available the parameters- assumptions can be modified.