Static field route #830

What do I do when liner loose after field cut?

Insulation, Liner, Vapor Barrier & Condensation.1 field-polished — insulation/rated-detail check

Field cuts can leave liner loose at the edge. Secure or repair liner before that edge becomes hidden inside the duct system.

Open in Field Rescue Open category

Field checklist

Inspect the liner edge after the cut.
Look for peeling, torn facing, or gaps between liner and metal.
Verify approved adhesive/pins/edge treatment.
Ask before trimming or patching liner.

Ask foreman

The liner is loose after this field cut. What edge treatment or repair do you want before we connect it?

Do not

Do not connect over loose liner and hope airflow holds it down.

Why it matters

Insulation affects access, vapor barrier, condensation control, inspections, TAB/service access, and finished-work quality. Project specs and manufacturer details still control.

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