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What metal gauge do we need to specify when employing Vermiduct as a Fire upgrading system?

April 26, 2017employing gauge metal specify system upgrading vermiduct

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What metal gauge do we need to specify when employing Vermiduct as a Fire upgrading system?

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For Kitchen Exhaust ductwork, AS 1668.1 requires the sheet metal to be of 1.2 mm gauge. With ‘Vermiduct’ 1.0 mm sheet metal is all that is required for ductwork up to 4.8 m wide x 3 m deep. In some special cases ducting not exceeding 1200 mm x 1200 mm may be constructed from .8 mm sheet metal. Please note however that in some cases (ie high pressure ducts etc) greater metal thickness may be warranted! Refer to LAF for further details.