Static field route #19081

What do I do when a fire damper sleeve sticks too far out of the wall?

Fire/Smoke Dampers, Access Doors & Rated Assemblies🟨 CHECK FIRSTV190 answer-gap expansion

📖 Verified core answer

Do not force retaining angles onto a sleeve that is too far in or out. Reposition the sleeve/damper per the manufacturer wall-opening detail so blades, sleeve, angles, and access all work.

Open in Field Rescue Open category

Field verification checklist

Check damper tag/model and manufacturer installation sheet.
Measure wall thickness, sleeve projection both sides, blade location, and retaining angle fit.
Verify actuator/linkage/access side and whether access door still works.
Check wall/sleeve gap and firestop sequence before cover.
Ask before trimming sleeve or moving a rated assembly.

Ask foreman

The fire damper sleeve at [location] is sticking too far [side] and the retaining angles will not sit flat. I checked wall thickness and installation sheet. Do you want the sleeve reset before firestop/cover?

Text to foreman

Route options

AMake the field correction only if it is within your assignment and the approved method.

BHold and document the condition if the fix affects airflow, access, life safety, pressure class, rated assemblies, equipment, or another trade.

CBring the foreman/detailer the location, what you checked, and what decision you need before cover, startup, or rework.

Do not do this

Do not screw retaining angles crooked or pack around a mispositioned damper sleeve to hide the problem.

Why this matters

Bad sleeve position can fail inspection, block access, prevent proper retaining angle installation, or affect damper operation.

Verification basis

Approved drawings/specs, project coordination drawings, manufacturer instructions/submittals, shop standards, foreman/detailer direction, employer policy, and AHJ/code requirements.