Content Gap Batch 8

Large Duct Gap Needs a Mechanical Fix or Approved Reinforcement

Sealing, Leakage, Mastic & Pressure Testing⚠️ VERIFYField workflow

Core Answer

A wide or moving gap is not automatically a “more mastic” problem. Confirm whether the joint needs to be re-fit, fastened, patched, or reinforced before sealing.

Open in Field Rescue Open Category

What to Check First

Measure and photograph the gap
Check whether the metal moves under light hand pressure
Verify the joint, seam, or patch detail
Confirm whether approved mesh or reinforcement is required by the sealant system
Clean and dry the surface before any approved repair

Ask Foreman

This gap is about [size] at [location] and the metal [moves/does not move]. Do you want it mechanically corrected or patched before we use the approved mesh-and-sealant system?

Text to Foreman

Do Not Do This

Do not bridge a structural or moving gap with a thick glob of sealant and call it finished.

Why This Matters

Sealant can crack, sag, or separate when it is being asked to hold a bad joint together.

Verify against: approved sealant manufacturer data, project seal class/spec, foreman direction.