Attachment 2 - Freetown Drawings.pdf
PDF 3 MB Posted
- Solicitation number
- 19AQMM26R0332_Freetown_Roof_Replacement_RFP
About this file
This document is a set of architectural drawings for a roof replacement project at the U.S. Embassy in Freetown, Sierra Leone. The project involves roof replacement for three buildings: the New Office Building (NOB), Recreation Center (REC), and Compound Access Control Buildings (CACs), managed by the United States Department of State, Bureau of Overseas Buildings Operations.
The drawings include existing and new roof plans for all three structures across multiple levels. The NOB requires roof replacement at the lower, standard (floors 2 & 3), and upper levels. The REC building features a sloped roof with multiple scuppers and ridges. The CACs include both existing and new roof configurations with metal canopy roofs and low roof sections. Key construction specifications noted in the drawings indicate that roof sections are to be installed with two plies of modified bitumen applied directly to concrete decks. The plans show detailed measurements, drainage infrastructure including roof drains with overflow capacity, scupper configurations, flashing details, pipe penetrations, equipment curbs, rise walls, and threshold treatments. All materials specified include stainless steel components for fasteners, caps, flashing, and scupper inserts. The drawings emphasize that all measurements are approximate and contractors are responsible for field verification of conditions and measurements before work begins. Detail sheets reference specific construction standards for drain installations, wall penetrations, and edge treatments using polyethylene slip sheets and modified bitumen base flashings.
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Other files
| File | Type | Posted |
|---|---|---|
| Attachment 4 - Price Sheet (Revised).xlsx | XLSX spreadsheet | |
| 19AQMM26R0332 A005.pdf | ||
| 19AQMM26R0332 A004.pdf | ||
| QandA 1.docx | DOCX document | |
| 19AQMM26R0332 A003.pdf | ||
| Attachment 1 - Freetown Specifications (Rev 01).pdf | ||
| 19AQMM26R0332 A002.pdf | ||
| 19AQMM26R0332 A001.pdf | ||
| Attachment 7 - Freetown Site Access Information.docx | DOCX document | |
| Attachment 1 - Freetown Specifications.pdf | ||
| Attachment 6 - Public Release of Information 20250219.pdf | ||
| Attachment 5 - Bidders DD-254.pdf | ||
| 19AQMM26R0332.pdf | ||
| Attachment 4 - Price Sheet.xlsx | XLSX spreadsheet | |
| Attachment 3 - PPQ.docx | DOCX document |
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Text version
G00 COVER PAGE
A01 NOB EXISTING ROOF PLAN
A05 REC EXISTING & NEW ROOF PLAN
A06 CACs EXISTING ROOF PLAN
A04 NOB UPPER LEVEL NEW ROOF PLAN
A02 NOB LEVEL ONE & TWO NEW ROOF PLAN
A03 NOB LOWER LEVEL NEW ROOF PLAN
A08 DETAILS
A09 DETAILS
A07 CACs NEW ROOF PLAN
G01 SITE PLAN
NOTES:
ALL MEASUREMENTS SHOWN ARE
APPROXIMATE. CONTRACTOR IS
RESPONSIBLE FOR FIELD VERIFYING
ALL CONDITIONS & MEASUREMENTS.
4250 27636
30715
18635
NOTES:
ALL MEASUREMENTS SHOWN ARE
APPROXIMATE. CONTRACTOR IS
18625
30715
18635
15340
NOTES:
ALL MEASUREMENTS SHOWN ARE
APPROXIMATE. CONTRACTOR IS
15435
2 NOTES:
ALL MEASUREMENTS SHOWN ARE
APPROXIMATE. CONTRACTOR IS
RESPONSIBLE FOR FIELD VERIFYING
ALL CONDITIONS & MEASUREMENTS.
ROOF SECTION TO BE INSTALLED WITH
TWO PLIES OF MODIFIED BITUMEN
DIRECT TO CONCRETE DECK.
26700
NOTES:
ALL MEASUREMENTS SHOWN ARE
APPROXIMATE. CONTRACTOR IS
NOTES:
ALL MEASUREMENTS SHOWN ARE
APPROXIMATE. CONTRACTOR IS
30872
67102630
12073
11897
NOTES:
ALL MEASUREMENTS SHOWN ARE
APPROXIMATE. CONTRACTOR IS
NEW STAINLESS
STEEL BOLTS
DRAIN STRAINER - REPLACE BROKEN, MISSING OR
PLASTIC STRAINERS. STRAINER TYPE VARIES.
PAINT DRAIN STRAINERS AND CLAMP RINGS.
POLYETHYLENE
SLIP SHEET
INSPECT, CLEAR AND WATER TEST ALL
ROOF DRAINS AND PIPING TO FREE
FLOW CONDITION.
GALVANIZED/PAINTED STEEL,
FABRICATED GRATE COVER
ASSEMBLY
SEAL TOP EDGE OF
REGLET MOUNTED
RECEIVER WITH
TWO-PART URETHANE.
COAT OVER SEALANT WITH
COATING
2-PIECE
COUNTERFLASHING.
SECURE RECEIVER IN SAW
CUT REGLET WITH LEAD
WEDGES
EXISTING S.S. COPING
FLASHING TO REMAIN
TERMINATION
BAR WITH
3-COURSING
POLYETHYLENE SLIP
SHEET
EXISTING END WALL
AT OPENING
(BEYOND)
EXISTING DOOR
STAINLESS
STEEL CAP
THRESHOLD
PLATE
COUNTERFLASHING
SMOOTH-SURFACED
MODIFIED BITUMEN
BASE FLASHING BASE
PLY
MODIFIED BITUMEN
BASE FLASHING TOP
PLY
STAINLESS
STEEL CAP (SEE
INSET)
EXISTING THRESHOLD
PLATE; REMOVE AND
REINSTALL
POLYETHYLENE SLIP
SHEET
NEW STAINLESS
STEEL BOLTS
DRAIN STRAINER - REPLACE BROKEN, MISSING
OR PLASTIC STRAINERS. STRAINER TYPE
VARIES. PAINT DRAIN STRAINERS AND CLAMP
RINGS.
POLYETHYLENE
SLIP SHEET
INSPECT, CLEAR AND WATER TEST ALL
ROOF DRAINS AND PIPING TO FREE
FLOW CONDITION.
EXISTING
RIGID
CONDUIT
POLYETHYLENE SLIP
SHEET
COMPRESSIBLE
INSULATION
STAINLESS STEEL
DRAW BAND
SHEET METAL COLLAR. ROUND
OFF CORNERS, PRIME TOP AND
BOTTOM OF FLANGE AND
EMBED INTO TROWELING OF
PLASTIC ROOF CEMENT.
MECHANICALLY ATTACH TO
CONCRETE DECK
STAINLESS STEEL UMBRELLA
COUNTERFLASHING
SILICONE SEALANT
AND BACKER ROD
MODIFIED BITUMEN
BASE FLASHING TOP
PLY
EXISTING
CONCRETE
WALL
SEALANT
STAINLESS
STEEL
FACE
PLATE
FACE
PLATE
STAINLESS STEEL SCUPPER
INSERT (SEE INSET). SECURE TO
DECK AND PARAPET WALL AT
150mm (6-INCHES) ON CENTER
SCUPPER INSERT
SMOOTH-SURFACED MODIFIED
BITUMEN BASE FLASHING BASE
PLY
POLYETHYLENE SLIP
SHEET
MODIFIED BITUMEN
BASE FLASHING TOP
PLY
EXISTING CONCRETE
WALL
SEALANT
STAINLESS
STEEL FACE
PLATE
STAINLESS STEEL SCUPPER
INSERT (SEE INSET). SECURE TO
DECK AND PARAPET WALL AT
150mm (6-INCHES) ON CENTER
SCUPPER INSERT
SMOOTH-SURFACED MODIFIED
BITUMEN BASE FLASHING BASE
PLY
POLYETHYLENE SLIP
SHEET
MODIFIED BITUMEN
BASE FLASHING TOP
PLY
EXISTING
CONCRETE
WALL
STAINLESS STEEL SCUPPER
INSERT (SEE INSET). SECURE TO
DECK AND PARAPET WALL AT
150mm (6-INCHES) ON CENTER
SCUPPER INSERT
SMOOTH-SURFACED MODIFIED
BITUMEN BASE FLASHING BASE
PLY
POLYETHYLENE SLIP
SHEET
STAINLESS STEEL CAP
FLASHING
MODIFIED BITUMEN
UNDERLAYMENT
EXISTING EQUIPMENT.
REMOVE, RETAIN AND
REINSTALL AFTER
INSTALLATION OF ROOF
SYSTEM. SET FASTENERS AND
PLATE IN SEALANT.
TERMINATION BAR
AND THREE COURSING
POLYETHYLENE SLIP
SHEET
| 1. G00 COVER |
| 2. G01 SITE PLAN |
| 3. A01 NOB EXG. ROOF PLAN |
| 4. A02 NOB FL 2&3 NEW ROOF PLAN |
| 5. A03 NOB LOWER ROOF NEW PLAN |
| 6. A04 NOB UPPER ROOF NEW PLAN |
| 7. A05 REC EXG & NEW ROOF PLAN |
| 8. A06 CACS EXG ROOF PLAN |
| 9. A07 CACS NEW ROOF PLAN |
| 10. A08 DETAILS |
| 11. A09 DETAILS |
File details come from the government source that posted it. Updated .