Leaving bolt heads/screws interfering with insulation

Bring the flange together evenly: leaving bolt heads/screws interfering with insulation. Start hardware in a balanced way and do not twist the flange or crush the gasket.

Check hardware orientation before insulation. Bolt heads or screws sticking the wrong way can create ugly cover-up and vapor-barrier problems.

Rectangular Duct & Fittings 2nd Year YELLOW

Stop if

Ask when connector type, gasket, cleat/bolt schedule, pressure class, or manufacturer detail is unclear.

Watch out

Do not leave hardware sticking into the insulation path if it can be corrected now.

Check

Verify bolt/screw direction
Check insulation clearance
Fix anything that will snag or crush insulation

Steps

Align the duct sections square.
Check flange faces, corners, gasket, and cleats/bolts.
Fix damage or missing parts before tightening.
Tighten or cleat evenly per project/manufacturer detail.
Focus on the actual issue: leaving bolt heads/screws interfering with insulation.

Say this to your foreman

In Rectangular Duct Assembly: TDC / Ductmate / Flanges, I'm looking at: Leaving bolt heads/screws interfering with insulation. What should I verify before I cut, drill, seal, cover, move, or install?