Black-Iron Duct Basics Before Fabrication or Install

This black-iron run serves [system]. Which approved construction, weld, access, and clearance details control before we fabricate or set it?

Grease Duct, Kitchen & Industrial Exhaust 1st Year RED

Stop if

Stop and verify the approved detail, responsible trade, or authority before work proceeds.

Watch out

Do not substitute ordinary duct methods, intermittent welds, unapproved access doors, or field changes in a grease or hazardous exhaust system.

Check

room/grid/area
photo of the condition
current drawing/detail/submittal
measurements or test information
what has already been checked

Say this to your foreman

black-iron duct basics before fabrication or install grease duct, kitchen exhaust & industrial exhaust black iron duct basics welded exhaust grease duct industrial exhaust this black-iron run serves [system]. which approved construction, weld, access, and clearance details control before we fabricate or set it?

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