Static field route #618

What do I do when duct is installed in a pool, natatorium, or corrosive environment?

Hanger Systems, Rods, Straps, Trapeze & AnchorsHigh-risk field starter — corrosive environment hardware

Stop and verify the material schedule before installing or covering duct supports in corrosive areas. Pool rooms, natatoriums, chemical rooms, coastal air, and wet exhaust areas can attack duct, rods, straps, clamps, screws, nuts, bolts, washers, and anchors.

Open in Field Rescue Open category

Field checklist

Identify the environment
Check drawings/specs/submittals for duct and support material
Verify hanger rod, strap, clamp, anchor, screw, nut, bolt, washer, and coating/isolation requirements
Photograph rust, pitting, staining, white powder, failed coating, or loose hardware
Ask before substituting hardware.

Ask foreman

This area looks corrosion-sensitive. What duct, hanger, rod, anchor, screw, nut, bolt, washer, coating, and isolation material are required here?

Do not

Do not use random zinc, galvanized, plain steel, aluminum, or stainless hardware in a corrosive area without verifying the specified material system.

Why it matters

Wrong materials in a corrosive environment can weaken overhead supports over time.

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