Aluminum Duct Deforms While Fasteners Are Started

The aluminum joint starts to pucker as the fasteners tighten even though the ends are aligned. I checked the connector fit and support. Do you want the hole pattern or joint method reviewed before we continue?

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Stop if

Stop before changing structural support, rated construction, equipment handling, specialty materials, weatherproofing, engineered movement details, or manufacturer-specific requirements without the responsible direction.

Watch out

Do not keep driving fasteners until the metal pulls together or substitute a larger fastener without approval.

Check

current drawings and approved details
grid/floor/location and measured conditions
photos showing the installation condition
relevant manufacturer, structural, architectural, or finish information
what has already been checked

Say this to your foreman

aluminum duct deforms while fasteners are started aluminum duct puckers deforms starting screws fasteners stop tightening and restore the pieces to their intended shape before continuing. verify the approved connector, fastener, hole size, spacing, backing, and tightening method for the aluminum assembly. the aluminum joint starts to pucker as the fasteners tighten even though the ends are aligned. i checked the connector fit and support. do you want the hole pattern or joint method reviewed before we continue?