Apprentice answerHow do we support vertical riser ductwork at each floor penetration
3rd YearMeasuring, Layout & Field MathStop / Verify
Use heavy structural steel Riser Clamps (Angle Iron Supports) fastened securely to the left and right exterior sides of the duct body.
Ask a jobsite questionBack to Measuring, Layout & Field Math
Plain-English answer
Use heavy structural steel Riser Clamps (Angle Iron Supports) fastened securely to the left and right exterior sides of the duct body.
These heavy horizontal angle bars extend outward past the floor hole cutout lines, resting their full load weight directly flat onto the structural concrete floor slab or structural steel perimeter framing channels at each floor landing.
Field checklist
- Stop and verify the approved detail, manufacturer instructions, foreman direction, and project specs before touching it.
- Use heavy structural steel Riser Clamps (Angle Iron Supports) fastened securely to the left and right exterior sides of the duct body.
- These heavy horizontal angle bars extend outward past the floor hole cutout lines, resting their full load weight directly flat onto the structural concrete floor slab or structural...
Ask Foreman
Hey boss, I’m on sealing & insulation and need verification before I touch this: How do we support vertical riser ductwork at each floor penetration? Do you want me to stop here and check the approved detail, submittal, or inspector/manufacturer requirement first?
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.
Related questions in this category
TinnerFlow™