A severe restriction on space in the ceiling void led to BHP Consulting choosing the compact and pre-insulated KoolDuct system. David Barker of BHP explains, ‘The lack of space in the ceiling void meant that the multi-zone air-conditioning ductwork system would not be adequately insulated and vapour sealed. This could only be ensured by using the KoolDuct system. Conventional sheet-metal ducting would have fitted too tightly to the soffit and the other ducting to then be covered with thermal insulation.’
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