Annular Pontoon Floating Roof

Fabricate & Install New Single Deck, Annular Pontoon Floating Roof

The screening estimates are based upon the following assumptions:

  • Tank is clean, gas and lead free and ready for hot work
  • Good access exists to tank for equipment and materials
  • Doorsheet is a minimum of 8’ high x 8’-6” wide.
  • No hours are included for a dedicated fire/safety watch.
  • Floating roof legs are a maximum of two (2) positions.  Industry standard positions for high leg and low leg setting of  six (6) feet and three (3) feet respectively
  • Floating roof shall be built at a construction height and floated to final setting by air, water or product.
  • All design, fabrication and construction in accordance with API 650 Appendix C
  • Existing  tank shell is within API-650 dimensional tolerances as far as level, plumbness, peaking, banding and buckles.
  • Slope of the existing bottom does not exceed 1” in 10’ (either cone up or cone down).

Cells highlighted in yellow can be modified for user input.

Tank Information

Tank Diameter:

Estimates to Install

 
Baseline
User Input
Labor:
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Materials:
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Total:
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Field Duration (weeks):
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EFR Installation

Key Field Tasks
Field Hours to Complete
 
Baseline
User Input
Rig-Up:
Remove/Install Door Sheet:
Remove Existing Sealing System:
Remove Existing EFR:
Install/Remove Temp Structure:
Install Annular Pontoons:
Lay, Fit & Weld Center Deck Plates:
Install Support Legs:
Install Striker Plates:
Install Deck Manways:
Install Vacuum Breakers:
Install Center Sump:
Install Roof Drain:
Install 8-inch Stilling Well:
Install Float Well:
Install Primary & Secondary Seals:
Install Rim-Mounted Foam Dam:
Install Rolling Ladder & Track:
Air-Lift EFR & Set Legs for Operation:
Total Field Hours:
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Fully-Loaded Labor Rate ($/hr):
Estimated Field Labor Costs:
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Anticipated Crew Size:
Estimated Field Duration (weeks):
(Assuming 40hr/wk field schedule) 
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Material Information

 
Baseline
User Input
Item:
Deck Plates
Units of Measure (lbs):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
Pontoon Assembly
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
Support Leg Assembly
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
30-inch Deck Manways
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
10-inch Bleeder Vents
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
Center Sump
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
Roof Drain
Units of Measure (inches):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
8-inch Guide Pole & Assembly
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
20-inch Float Well
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
Rolling Ladder & Track (Galv)
Units of Measure (each):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
Primary & Secondary Seals (SS)
Units of Measure (lf):
$/UoM:
Estimated Cost:
$0
$0
Roof Appurtenances:
Rim Mounted Foam Dam (SS)
Units of Measure (lf):
$/UoM:
Estimated Cost:
$0
$0
Estimated Material Costs:
$0
$0
Fabrication ($):
Engineering ($):
Total:
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* The following information is provided for screening and feasibility estimating only. GPG Consulting, LLC. does not warrant the information provided will meet your requirements or that the operation of this spreadsheet will be error free. GPG Consulting, LLC. disclaims liability for any and all losses or damages, including consequential damages, arising from the use of this information.