TDC/TDF Flanged Connections

This flanged joint is close but not pretty at the corners. Duct is level/aligned. Do you want cleats, or if cleats are unavailable, 5/16 self-tappers in the flange as the fallback?

I'm checking tdc/tdf flanged connections at [location]. I found Apprentice sees flanged duct and is unsure whether the joint is TDC/TDF/Ductmate, how the gasket should sit, and how to pull the duct faces into alignment without forcing the run crooked.. This flanged joint is close but not pretty at the corners. Duct is level/aligned. Do you want cleats, or if cleats are unavailable, 5/16 self-tappers in the flange as the fallback?

Rectangular Duct & Fittings 2nd Year YELLOW

Stop if

Hold point on tdc/tdf flanged connections: I have the location, photo, drawing/detail/spec section, and what I checked. Who should verify before this gets cut, drilled, sealed, supported, connected, controlled, or covered?

Watch out

Do not call for rivets as the normal TDC/Ductmate connection. Do not use corners, bolts, drift pins, clamps, or screws to drag a crooked duct run into place. Do not crush the gasket or flange.

Check

room/grid/area
photo of condition
drawing/detail/spec/submittal
what I already checked
what is blocking progress

Say this to your foreman

14573 tdc/tdf flanged connections rectangular duct yellow 2 this flanged joint is close but not pretty at the corners. duct is level/aligned. do you want cleats, or if cleats are unavailable, 5/16 self-tappers in the flange as the fallback? i'm checking tdc/tdf flanged connections at [location]. i found apprentice sees flanged duct and is unsure whether the joint is tdc/tdf/ductmate, how the gasket should sit, and how to pull the duct faces into alignment without forcing the run crooked.. this flanged joint is close but not pretty at the corners. duct is level/aligned. do you want cleats, or if cleats are unavailable, 5/16 self-tappers in the flange as the fallback? flange duct transverse duct connection, rolled flange, tdc/tdf, cleats and corners