How many weld pins do I need per square foot when installing internal acoustic liner

Plain-English answer

Space pins roughly 12 inches apart across the surface, keeping pins within 3 inches of any corner or edge seam to prevent high-velocity airflow from catching the insulation liner and peeling it away over time.

Field checklist

• Stop and verify the approved detail, manufacturer instructions, foreman direction, and project specs before touching it.
• Space pins roughly 12 inches apart across the surface, keeping pins within 3 inches of any corner or edge seam to prevent high-velocity airflow from catching the insulation liner and...

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Verify before acting

Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

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