Vertical Duct Riser Support: Do Not Hang the Whole Stack From One Point
Support the riser at the locations and with the hardware shown on the engineered or approved detail, accounting for duct weight, fittings, insulation, and thermal movement.
Stop if Which supports carry the vertical load on this riser, which are guides, and what approved detail controls each floor? Watch out Do not hang a tall riser from one top connection, rely on light-gauge framing, or add field supports without checking load path and movement. Check Find the riser-support detail and floor locations Confirm what carries vertical load and what only guides the riser Check support steel, angles, anchors, and clearances Account for insulation, access, and movement Verify installation before the shaft closes Steps Find the riser-support detail and floor locations Confirm what carries vertical load and what only guides the riser Check support steel, angles, anchors, and clearances Account for insulation, access, and movement Verify installation before the shaft closes Say this to your foreman Which supports carry the vertical load on this riser, which are guides, and what approved detail controls each floor?
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