Greenhouse Humidity and Corrosion Ductwork

Greenhouses run high humidity and sometimes chemicals/fertilizers that attack duct, fasteners, and insulation.

Stop if

• This is greenhouse/high-humidity air. What material, coating, and condensation details are specified?

Watch out

• Do not use normal indoor material assumptions in wet/high-humidity greenhouse zones.

Check

• Confirm humidity exposure, material/coating, fasteners, condensate control, and airflow to plants.

Steps

• Identify whether this is normal ductwork or a controlled/special condition.
• Confirm humidity exposure, material/coating, fasteners, condensate control, and airflow to plants.
• Get the current drawing/detail/spec/submittal before changing routing, material, access, or support.
• Bring photos, location, and what you checked to the foreman before closing or covering the work.

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