Construction Details for Consideration
The following are typical sealing details that should be considered to ensure UFAD plenum integrity.
CSI Specification Language
Underfloor Air Sealing Locations
Plan View Without Raised Access Floor (RAF)
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Base Building Core & Shell Sealing Details
A) Seam At Slab & Exterior Wall
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B) Seam At Slab & Enclosed Column
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C) Seam At Slab & Drywall Partition
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D) Seam At Base of Stairs
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E) Seam at Top of Stairs
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F) Seam at Elevator Shaft Below RAF
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G) Expansion Joint in Concrete Slab
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HVAC System Sealing Details
H) Space around Vertical Ducts at Slab
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I) Space at Duct through Plenum Wall
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Plumbing Sealing Details
J) Space at Pipe Penetration Through Slab
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K) Space at Pipe Through Plenum Wall
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Electrical System Sealing Details
L) Space at Conduit Through Plenum Wall
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M) Space at Open End of Conduit in Plenum Wall
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Voice/Data System Sealing Details
N) Space at Cable Sleeve in Plenum Wall
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Raised Floor Air Sealing Locations
Plan View With Raised Access Floor (RAF) Installed
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Raised Access Floor (RAF) Sealing Details
1. Plenum Divider Detail
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2. Air Highway Detail
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3. Space at Penetrations Through Plenum Divider
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4. Seams at Edge of RAF without Cove Base
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5. Seams at Edge of RAF with Cove Base
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6. Seams at Edge of RAF at Rough Wall
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7. Seams at Fascia Closure
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8. Seams at RAF & Top of Stairs
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9. Seams at RAF & Base of Stairs
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10. Space at Penetration Inside Wall through RAF
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11. Space at Pipe Penetration through RAF
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12. Seams at RAF & Fire Barrier Below Door
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13. Seams at RAF & Curb
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14. Space at Cable Cutouts
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15. Space at Power & Data Service Box
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