RFQ_19TH2026Q0043_RAJ WH2 Roof Replacement_SINGED.pdf

Embassy of the United States of America

Bangkok, Thailand

June 25, 2026

Dear Prospective Offeror:

Subject: Request for Quotes Number 19TH2026Q0043 – Warehouse #2 Roof Replacement

Enclosed is a Request for Quotes (RFQ) for WHSE#2 roof replacement at RAJ. If you would like to submit a quotation, follow the instructions in Section J of the solicitation, complete the required portions of the attached document, and submit it to the address shown on the Standard Form that follows this letter.

The U.S. government intends to award a contract/purchase order to the responsible company submitting an acceptable offer at the lowest price. We intend to award a contract/purchase order based on initial proposals, without holding discussions, although we may hold discussions with companies in the competitive range if there is a need to do so.

The site visit is required and has been scheduled for July 6, 2026 at 09:00 AM at 33 Rajdamri Road, Lumpini, Pathumwan, Bangkok 10330. Please submit information for personnel joining the site visit by July 1, 2026 before noon to Pinlaorp@state.gov.

Request for questions and drawings regarding this work may be submitted no later than 4:00 PM

Bangkok Time on July 9 ,2026 by email in English to: Pinlaorp@state.gov

Quotations are due by 4:00 PM, July 27, 2026 (Bangkok Local Time). No quotations will be accepted after this time. Quotations must be in English and incomplete quotations will not be accepted. Your quotation must be submitted electronically to Pinlaorp@state.gov. Please enter in the subject line:

“Quotation Enclosed-RFQ#19TH2026Q0043 – WHSE#2 Roof Replacement at RAJ” It is important to make sure the submission is made in a specific size and format; in MS-Word 2007/2010 or MS-Excel

2007/2010 or Adobe Acrobat (pdf) file format. The file size must not exceed 30MB. If the file size exceeds 30MB, the submission must be made in separate files and attached to separate emails with less than 30MB each.

In order for a quotation to be considered, you must also complete and submit the following:

1. SF-18

2. Section A, Pricing

3. Section L Representations and Certifications

4. Additional information as required in Section J

5. Proof of SAM Registration mailto:Pinlaorp@state.gov

Offerors shall be registered in the SAM (System for Award Management) database at https://www.sam.gov prior to submittal of their offer/proposal as prescribed under FAR 4.1102.

Failure to be registered at the time of proposal submission may deem the offeror’s proposal to be considered non-responsive and no further consideration will be given. Therefore, offerors are highly encouraged to register immediately if they are interested in submitting a response to this requirement.

Sincerely, Ramon Menendez-Carreira

Contracting Officer

REQUEST FOR QUOTATION

(THIS IS NOT AN ORDER)

THIS RFQ IS IS NOT A SMALL BUSINESS SET-ASIDE

15. DATE OF QUOTATION

16. SIGNER

a. NAME (Type or print)

c. TITLE (Type or print)

b. TELEPHONE

AREA CODE

NUMBER

STANDARD FORM 18 (REV. 6/1995)

Prescribed by GSA-FAR (48 CFR) 53.215-1(a)

AUTHORIZED FOR LOCAL REPRODUCTION

Previous edition not usable

8. TO:

b. COMPANYa. NAME

c. STREET ADDRESS

d. CITY e. STATE f. ZIP CODE

9. DESTINATION

a. NAME OF CONSIGNEE

b. STREET ADDRESS

c. CITY

d. STATE e. ZIP CODE

7. DELIVERY

FOB DESTINATION

OTHER

(See Schedule)

IMPORTANT: This is a request for information and quotations furnished are not offers. If you are unable to quote, please so indicate on this form and return it to the address in Block 5a. This request does not commit the Government to pay any costs incurred in the preparation of the submission of this quotation or to contract for supplies or service. Supplies are of domestic origin unless otherwise indicated by quoter. Any representations and/or certifications attached to this Request for Quotation must be completed by the quoter.

11. SCHEDULE (Include applicable Federal, State and local taxes)

ITEM NUMBER

(a)

SUPPLIES/SERVICES

(b)

QUANTITY

(c)

UNIT

(d)

UNIT PRICE

(e)

AMOUNT

(f)

12. DISCOUNT FOR PROMPT PAYMENT

a. 10 CALENDAR DAYS (%) b. 20 CALENDAR DAYS (%) c. 30 CALENDAR DAYS (%) d. CALENDAR DAYS

NUMBER PERCENTAGE

NOTE: Additional provisions and representations are are not attached.

13. NAME AND ADDRESS OF QUOTER

a. NAME OF QUOTER

b. STREET ADDRESS

c. COUNTY

d. CITY e. STATE f. ZIP CODE

14. SIGNATURE OF PERSON AUTHORIZED TO

SIGN QUOTATION

PAGE OF PAGES

2. DATE ISSUED 4. CERT. FOR NAT. DEF.

UNDER BDSA REG. 2

AND/OR DMS REG. 1

RATING

5a. ISSUED BY 6. DELIVER BY (Date)

5b. FOR INFORMATION CALL (NO COLLECT CALLS)

NAME TELEPHONE NUMBER

AREA CODE NUMBER

3. REQUISITION/PURCHASE REQUEST NUMBER

PR16048395

1. REQUEST NUMBER

PR16048395

The U.S. Embassy Bangkok,GSO/Procurement,THAILAND

Contracting Officer

To provide materials and labor for Warehuse#2 Roof replacement at RAJ

Pricing breakdown is provided separately

The total amount paid in Thai Baht VAT excluded

Pinlaorp@state.gov The U.S. Embassy Bangkok

120 - 122 Wireless Rd., Pathumwan

Bangkok

10330

6/25/2026

10. PLEASE FURNISH QUOTATIONS TO THE

ISSUING OFFICE IN BLOCK 5a ON OR BEFORE CLOSE OF BUSINESS (Date)

07/27/2026

1 JOB

THB THB

TABLE OF CONTENTS

SF-18

A. PRICING

B. STATEMENT OF WORK

C. PACKAGING AND MARKING

D. INSPECTION AND ACCEPTANCE

E. DELIVERIES AND PERFORMANCE

F. CONTRACT ADMINISTRATION DATA

G. SPECIAL TERMS AND CONDITIONS

H. CLAUSES

I. LIST OF ATTACHMENTS

Attachment 1: Sample Letter of Bank Guaranty

J. INSTRUCTIONS ON HOW TO SUBMIT A QUOTATION

K. EVALUATION CRITERIA

L. REPRESENTATIONS, CERTIFICATIONS AND OTHER STATEMENTS

SECTION A - PRICING

The U.S. Embassy intends to award a contract to replace the corrugated fiber cement roof tiles over a combination of steel & wood trusses on the Rajdamri Compound’s Main Warehouse (WHSE #2) of approximately 17,900 square feet.

Work is to be performed at the WHSE#2, Rajdamri Compound, located at no.33 Rajdamri Road, Lumpini, Pathumwan, Bangkok 10330.

The contract type shall be firm‐fixed price. The duration of this work shall be 60 calendar days per unit.

A. PRICE

The Contractor shall complete all work, including furnishing all labor, material, equipment, and services required under this purchase order for the following firm-fixed price and within the time specified. This price shall include all labor, materials, all insurance, overhead and profit.

Total Price (including all labor, materials, overhead and profit) (THB)

A.1 PRICING

The agreed contract price shall be a firm-fixed amount, including all labor, materials, equipment, shipping, incidentals, etc. The Design and Implementation cost will be based on a contractor's accepted cost proposal.

Description Quantity Unit Price Total Price

Site preparation 1 sum. ________ ________

Demolition work 1 sum. ________ ________

Architectural and structural work 1 sum. ________ ________

Miscellaneous work 1 sum. ________ ________

Overhead 1 sum. ________ ________

Profit 1 sum. ________ ________

DBA Insurance 1 sum ________ ________

Total Contract Price: (paid in Thai Baht)

A.2 VALUE ADDED TAX

Value Added Tax (VAT) is not applicable to this contract and shall not be included in the CLIN rates or invoices because the U.S. Embassy has a tax exemption certificate from the host government.

SECTION B - STATEMENT OF WORK

The character and scope of work are set forth in the contract. The Contractor shall furnish and install all materials required by this contract.

In case of differences between small and large-scale drawings, the latter will govern. Where a portion of the work is drawn in detail and the remainder of the work is indicated in outline, the parts drawn in detail shall apply also to all other portions of the work.

B. SCOPE OF WORK

The contractor shall perform the work per specified details herein. Required work in detail is in the referenced drawings. The list below of technical requirements is to be completed but should not be used as a substitute for the drawings.

RAJDAMRI COMPOUND WAREHOUSE#2 ROOF REPLACEMENT

PART ONE – GENERAL

1.01 SUMMARY:

A. U.S. Embassy Bangkok and Overseas Buildings Operations [OBO] have a requirement to replace the corrugated fiber cement roof tiles over a combination of steel & wood trusses on the Rajdamri Compound’s Main Warehouse (WH #2) of approximately 17,900 square feet.

B. The work includes, but is not limited to, the following:

• Remove and dispose existing ACM corrugated fiber cement roof tiles and associated penetration flashings.

• Selective repair of existing wood & steel purlins and framing.

• Installation of new roof metal panels.

• Installation of new sheet metal flashings at penetrations and perimeters.

1.02 SUBMITTALS:

A. Detailed project schedule showing work phasing and proposed daily progress.

B. Applicator's License Certificate: Roofing material manufacturer's agreement indicating date application was approved and expiration date.

C. Material manufacturer's product data sheets, written approval/acceptance of specified tests for project, fastener pattern layout, details, insulation, and all related materials based upon existing site conditions.

D. Shop Drawings of all specific waterproofing details.

E. Manufacturer’s warranties that are to be issued upon project completion.

1.03 SUBSTITUTIONS AND PRODUCT OPTIONS:

A. Contractor's Representation: Request for substitution constitutes a representation that Contractor:

• Has investigated proposed product and determined that it is equal to or superior in all respects to that specified.

• Shall provide same warranties for substitution as for product specified.

• Shall coordinate installation of accepted substitution into Work and make such other changes as may be required for Work to be complete in all respects.

• Waives all claims for additional costs, under his responsibility, related to substitution which subsequently becomes apparent.

• If substitution is not approved or accepted, Contractor shall furnish specified product.

1.04 QUALITY CONTROL:

A. Overseas Buildings Operations has the right to inspect and test all services, to the extent practicable at all times and places during the work. OBO may perform full time quality assurance inspections [QAI] and tests during construction to confirm the work is installed according to the Contract Documents.

B. Maintain quality control over suppliers, manufacturers, products, services, site conditions, and workmanship to produce work of specified quality.

C. Contractor shall be approved by manufacturer to perform the work for the specified guarantee period.

D. The Contractor shall be responsible for the following construction inspections and tests:

• Roof Metal Manufacturer’s Warranty Inspection

1.05 STORAGE OF MATERIALS:

A. Proper storage of materials is the sole responsibility of Contractor. Protect all materials susceptible to moisture including, but not limited to, all roll goods, insulation, cant strip, wood, and plywood in dry, above ground, watertight storage. Keep all labels intact and legible, clearly showing the product, manufacturer, and other pertinent information.

B. Store materials on site. Cover and protect materials subject to damage by weather, including during transit. Stored materials shall be available for inspection.

C. Store flammable and volatile liquids in sealed containers located a minimum of

20 feet from existing buildings.

D. Liquid products shall be delivered sealed, in original containers. Store roll goods in an upright position.

E. Distribute material, debris, and equipment over the roof deck to avoid damage to the structural deck. Place materials and equipment to be stored on the roof as nearly direct over structural members as can be determined. Secure equipment, material, and debris on the roof to prevent movement by wind or other elements.

1.06 TEMPORARY FACILITIES:

A. Temporary Water:

• Make arrangements with Embassy for water required for construction.

Embassy will pay for cost of water.

• Do not disrupt existing water service to the building.

• Provide hoses for conveyance.

B. Temporary Electrical

• Make arrangements with Embassy for temporary electrical service.

Embassy will pay energy charges for temporary power and lighting.

• Notify Embassy a minimum of two days prior to each required interruption of mechanical or electrical services in building. These interruptions shall be only at such times and for lengths of time as approved by Embassy. In no event shall interruption occur without prior approval of Embassy.

• Provide all necessary temporary wiring (in conduit if requested by

Embassy), extensions, and temporary lighting devices.

C. Temporary Ladders, Chutes, Scaffolds, Hoists and Cranes:

• Furnish and maintain temporary ramps, scaffolds, hoists, or chutes as required for proper execution of Work.

• Provide overhead protection at all building entrances

• Restrict debris removal to Embassy -approved area of building site.

• Restrict location of construction cranes to areas as approved by Owner.

• Such apparatus, equipment, and construction shall meet requirements of applicable

1.07 PROJECT PROCEDURES:

A. Embassy will occupy premises during entire period of construction for the conduct of normal, daily operations. Cooperate with Embassy's Representative in all construction operations to minimize conflict and to facilitate Embassy usage.

B. Contractor shall conduct his operations so as to ensure least inconvenience to Embassy's operations.

C. Contractor shall take precautions to avoid excessive noise or vibration that would disturb Embassy's operations. When directed by Embassy, Contractor shall perform certain operations at designated time of day or night in order to minimize disturbance to Embassy's operations.

D. Contractor shall take all necessary precautions to assure a watertight condition in the operation portion of the building during construction.

1.08 PROJECT SECURITY:

A. Personnel Clearances: Labor Background checks will require a minimum of 21 days for clearance.

B. Vehicle Clearances: Submit authorization requests, to include dates, vehicle type, license number, and driver name, for each motorized vehicular implement used on-site.

C. Access to Site: Contractor shall have limited access to or be admitted into the compound outside the areas designated for the project except with permission by the

Embassy.

D. Access to Work Area:

• Local contractors must be always escorted by Embassy personnel with escort privileges. Escort numbers will be determined by RSO depending on the number of contractor personnel, area of construction and other considerations.

• Material loading/off-loading shall be stored in designated areas which will be assigned to contractors on site visit date.

E. Procurement/Storage: Materials shall be procured by local means and stored on-site. All materials may be inspected prior to use on the project.

PART TWO - PRODUCTS

Not Used.

PART THREE - EXECUTION

END OF SECTION

SECTION 01535 – ROOF CONSTRUCTION SAFETY

PART ONE - GENERAL

1.01 SUMMARY

A. The Contractor is responsible and shall continue management and implementation of a safety and health program throughout construction.

B. The Contracting Officer and the Post Occupational Safety and Health Officer

[POSHO] reserve the right to suspend work when and where Contractor's safety and health program is considered to be operating in an inadequate or non-compliant manner.

1.02 REGULATIONS AND STANDARDS

A. Governing regulations: Latest edition of U.S. Army Corps of Engineers (COE)

Safety and Health Requirements Manual, EM 385-1-1

1.03 SUBMITTALS

A. Construction Accident Prevention Plan (CAPP) is a job site specific safety and health policy and program management documents. Submit a CAPP to ensure safety of all persons at the site in event of an emergency.

B. Management Commitment: Provide introductory policy statement signed by senior officers of design/build firm stating that implementation and management of the CAPP has full cooperation and support of management.

C. The CAPP shall include the following:

• Statement of safety and health policy.

• Administrative responsibilities for implementing the plan.

• Identification of personnel responsible for accident prevention.

• Plans for hazard communication, and continued safety and health training.

• Provisions for inspections of work sites, materials, and equipment.

• Emergency response capabilities to minimize consequences of accidents.

• Public safety requirements.

1.04 QUALITY ASSURANCE

A. Safety and Health Program Manager:

• Appoint a manager whose duties shall include effective implementation, coordination, and enforcement of CAPP.

• The manager shall be qualified to anticipate, identify, evaluate, and implement corrective action in relation to potential safety and health hazards and dangerous exposures for accident prevention.

• The manager shall meet with the POSHO and Owner’s representative to discuss site specific safety and health issues.

B. Inspections:

• Provide for frequent safety, health, and housekeeping inspections conducted by the Safety and Health Program Manager, temporary structures, fabrication shops, material, machinery, and equipment.

• POSHO or Quality Assurance Inspectors, as part of their QA responsibilities, shall conduct and document daily safety, health, and housekeeping inspections.

C. Toolbox Meetings: Hold safety meetings once each week. Require attendance by all laborers and supervisors; include those of separate contractors. Contractor shall consider the following checklist:

• Who is trained in CPR

• Level of local hospital services

• Do local doctors speak English

• Type of emergency vehicles and distances

• Are cell phones or radios available

• Level of embassy doctor or nurse services

• Family contact names and telephone numbers for all crew

2.01 TOOLS, EQUIPMENT, AND MACHINERY

A. Quality: Hand tools, power tools, equipment, machinery, materials, and personal protective apparatus shall be of manufacture listed by U.S. or internationally recognized testing laboratory for specific application for which they are to be used. They shall be quality products recognized for professional construction use, applications, and work practices.

B. Scaffolding: Shall be a standard tubular frame and clamp system manufactured and tested according to international standards. The Scaffold system shall include the scaffold manufacturers integrated access stairway sections, handrails, toe boards and walking platforms.

C Safe Clearance Procedure: Prior to initial use, and periodically thereafter at times of continued use, provide inspections of construction tools, equipment, and machinery. Do not permit continued use of tools, equipment, and machinery that are not in good condition.

D Fall Protection: On unprotected sides of the building edge provide workers with warning lines, guardrail, safety net or personal fall arrest systems or a combination of safety monitoring systems.

E Hazardous work shall be brought to the attention of the QAI and POSHO prior to commencing the work.

• Hot Work: Includes all work that results in open flame such as welding, cutting, brazing, and burning. The Contractor shall provide effective fire protection and prevention at all times during such operations.

• Confined Space: Work in enclosed areas such as sewers, vaults, vessels, manholes, pits, etc.

• Internal Combustion: The use of cranes, forklifts, hoists, or generators powered by petroleum fuel when used on or near the building.

• Explosive Actuated Tools: These include powder charged tools used for fastening purposes.

Not Used

SECTION 01700 - CONTRACT CLOSEOUT

1.01 GENERAL:

A. Comply with requirements stated in Conditions of the Contract and in

Specifications for administrative procedures in closing out the Work.

1.02 SUBSTANTIAL COMPLETION:

A. Contractor shall submit written request to the Contracting Officer’s Representative

[COR] stating the proposed date of Substantial Completion and schedule Final

Inspection.

B. Written certification shall include:

• Contract Documents have been reviewed.

• Project has been inspected for compliance with Contract Documents.

• Work has been completed in accordance with Contract Documents.

• Equipment and systems have been tested in presence of Owner's Representative and are operational.

• Project is complete and ready for final inspection.

C. Quality Assurance Inspector or Embassy Facilities Manager will make a pre-inspection after notification. Should the work not be complete, they will issue an inspection list to Contractor with noted items requiring further consideration.

1.03 FINAL INSPECTION:

A. Contracting Officer’s Representative will make final inspection after notification from Contractor.

B. Should COR consider Work complete in accordance with requirements of

Contract Documents, he will request Contractor to begin Final Clean-up and

Project Closeout submittals.

C. Should COR consider Work not complete:

• Contractor shall take immediate steps to remedy the stated deficiencies and submit initialed inspection list to the COR certifying Work is complete.

• COR will re-inspect Work.

1.04 REINSPECTING COSTS:

A. Should the Contracting Officer’s Representative be required to perform subsequent inspections of the Work due to the failure of the Contractor to correct deficient work, the additional services will be deducted from the final payment to

Contractor.

1.05 WARRANTY/GUARANTEE:

A. Submit original and duplicate copies of both Contractor's Warranty and

Manufacturer's Guarantee for review. After review, Contracting Officer’s

Representative shall approve final pay application upon receipt of both

Contractor's Warranty and Manufacturer's Guarantee.

1.06 EVIDENCE OF PAYMENTS AND RELEASE OF LIENS:

A. Contractor’s Release and Waiver of Liens:

• Contractor's Waiver of Liens.

• Separate waivers of liens for subcontractors, suppliers, and others with lien rights against property of Owner, together with complete list of those parties.

• Consent of Surety

B. All submittals shall be notarized and sealed before delivery to the COR.

1.07 FINAL ADJUSTMENT OF ACCOUNTS:

A. Submit final statement of accounting to the COR.

B. Statement shall reflect all adjustments.

• Original Contract Sum.

• Additions and Deductions resulting from:

a. Previous Change Orders.

b. Deductions for uncorrected Work.

c. Deductions for Reinspection Payments.

• Total Contract Sum, as adjusted.

• Previous payments.

• Sum remaining due.

1.08 FINAL APPLICATION FOR PAYMENT:

A. The Contractor shall submit one copy of all payment invoices, with the appropriate backup documents to the COR. The Contractor shall submit receipts for all allowance costs and reimbursable expenses incurred. The COR also will determine if billed services have been satisfactorily performed and if expenses billed are correct. If it is determined that the amount billed is incorrect, the COR will within seven days, request the Contractor to submit a revised invoice.

B. Final payment will not be approved or released until receipt of proper close-out documents.

CONTRACTOR’S RELEASE

PROJECT

CONTRACT NO. DATED BY

CONTRACT SUM $ DOLLARS

CONTRACTOR NAME

ADDRESS CITY STATE ZIP COUNTRY

Contractor hereby certifies that there are no outstanding obligations of the undersigned, the contracting firm, corporation, employee, dealer, subcontractor, or any others who would have standing against the property of the Government of the United States of

America (“Government”) under this contract.

In consideration of the sum stated above, upon payment of said sum to undersigned Contractor or assignees, the Government, its officers, agents, and employees are fully released and discharged of all obligations, liabilities, claims, and demands made under and arising from the contract, except:

1. Specified claims in stated or estimated amounts where the amounts are not susceptible of exact statement by the

Contractor. If none, check this box ; if yes, please check this box and itemize on reverse.

2. Claims, together with reasonable expenses incidental thereto, based upon the liabilities of the Contractor to third parties arising out of the performance of said contract, which are not known to the Contractor on the date of the execution of this release and of which the Contractor gives notice in writing to the Contracting Officer within the period specified in said contract.

3. Claims for reimbursement of costs (other than expenses of the Contractor by reason of his/her indemnification of the Government against patent liability), including reasonable expenses incidental thereto, incurred by the

Contractor under any provisions of the said contract relating to patents.

Contractor agrees, in connection with patent matters and with all claims which are not released as set forth above, that he/she will comply with all provisions of the said contract, including without limitation, those provisions relating to notification to the

Contracting Officer and relating to the defense or prosecution of litigation.

Subscribed and sworn to before me on this day of , 20 .

Notary Public:

CONTRACTOR

BY

My Commission Expires: TITLE

NOTE: In the case of a corporation as Contractor, Notarization is not required, but the certification below must be completed.

CERTIFICATE

I, , certify that I am the secretary of the corporation named as

Contractor in the foregoing release; that who signed said release on behalf of the Contractor was then of said corporation, that said release was duly signed for and on behalf of said corporation by authority of its governing body and is within the scope of its corporate powers.

CONSENT OF SURETY

PROJECT

CONTRACT NO. DATED BY

CONTRACT SUM $ IN DOLLARS

CONTRACTOR NAME

ADDRESS CITY STATE ZIP COUNTRY

The Surety (Co-sureties) consent/s to the foregoing contract modification and agree/s that its/their bond/s shall apply and extend to the contract as modified or amended.

CORPORATE / INDIVIDUAL SURETY (CO-SURETIES)

The Principal or authorized representative shall execute this consent of surety with the modification to which it pertains. If the representative (e.g. attorney-in-fact) that signs the consent is not a member of the partnership, or joint venture, or an officer of the corporation involved, a Power-of-Attorney or a Certificate of Corporate Principal must accompany the consent.

CORPORATE/INDIVIDUAL SURETY’S NAME & ADDRESS PERSON EXECUTIN

G CONSENT (SIGNATURE)

A

T

(Affix Seal) NAME

ITLE

DATE

B

DATE

C

Date

(Affix Seal)

(Affix Seal)

DATE

TITLE

AME

SIGNATURE

N

NAME & ADDRESS OF

PRINCIPAL

DATE

TITLE

NAME

SIGNATURE NAME & ADDRESS OF

PRINCIPAL

C O

R P

O R

A

E

P R

IN

C

IP

L

IN

D

IV

ID

U

P R

IN

C

IP

SECTION 02072 – ROOF REMOVALS AND RENOVATION WORK

1.01 SECTION INCLUDES:

A. Removal of existing corrugated fiber cement roof tiles to existing wood and/or steel frame structure. Refer to Section 02075 for ACM-specific protocols.

B. Required minor batten repair or replacement for roof repair work.

C. Modification of existing roof penetrations, equipment supports or curbs, pitch pans, reglets, piping, and electrical service to provide proper flashing height and flashing detail.

D. All other miscellaneous and incidental work required to install complete roofing system as specified and to obtain specified manufacturer's warranty.

1.02 PROJECT CONDITIONS:

A. Install temporary roofing and confirm waterproofing protection prior to removals.

B. Environmental Requirements:

• Do not remove existing roofing and flashing in inclement weather or when rain is predicted with 30 percent possibility.

• When ambient temperature is below 15 degrees Celsius (60 degrees Fahrenheit), expose only enough cement and adhesive required within four-hour period.

C. Emergency Equipment: Maintain on-site materials necessary to apply emergency temporary seal in event of sudden storms or inclement weather.

1.03 SEQUENCING AND SCHEDULING:

A. Sequence removals and renovation with sequence of new work to maintain facility in dry, watertight conditions.

B. Coordinate roof work so that no more existing items are removed in one day then can be replaced with new roofing work on the same day.

2.01 MATERIALS:

A. Treatment for Wood Members: Pressure preservative treated in accordance with AWPA

C2, C9 standards, Ground Contact using Alkaline Copper Quat, Type C (ACQ-C), Micronized Copper Quat (MCQ) and Copper Azole, Type A (CBA-A) at 6.41 kg/m3

(0.40 pounds per cubic foot) wood for use Above Ground, 4.01 kg/m3 (0.25 pounds per cubic foot).

B. Lumber for Nailers and Blocking: Standard Grade Fir or No. 2 Southern Yellow Pine bearing UL label; size shall be appropriate for application, minimum 50mm (2-inch)

(nominal) thickness by 150mm (6-inch) (nominal) depth, kiln dried after treatment.

C. Plywood: Minimum 19mm (3/4-inch) APA fire rated sheathing, Exposure 1 or exterior, bearing APA trademark.

D. Fasteners:

Wood Substrate:

a. Securement of metal flanged items shall be nails, No. 10 gauge, galvanized steel wire with 10mm (13/32-inch) diameter head and ring shank such as No. 3255 by Dickson Weatherproof Nail Co.

b. Securement of wood to wood shall be nails, No. 9 gauge, galvanized steel wire nail with ring shank and 8mm (5/16-inch) diameter head such as No. 3055 by Dickson Weatherproof Nail

Co.; length required to provide 25mm (1-inch) penetration minimum into substrate.

c. Securement of exposed items to wood substrate shall be nails, No.

10 gauge, galvanized steel wire nail with 9mm (3/8-inch) diameter head, ring shank, and EPDM rubber washer such as No. 955 by

Dickson Weatherproof Nail Co.; length required to provide 25mm

(1-inch) penetration minimum into substrate.

d. Fasteners for securing roofing materials to wood substrate shall be a hardened steel nail with a 25mm (1-inch) diameter round head and ring shank; length to provide 25mm (1-inch) penetration into substrate, as manufactured by Simplex Nail Co.

e. Fasteners for securing steel to wood substrate shall be steel wood screw with steel washer and integral rubber seal.

Concrete Substrate:

f. Fasteners for securing sheet metal items to concrete substrate shall be a pre-assembled drive anchor with a stainless-steel drive screw, a lead/zinc alloy expansion anchor body (6mm [1/4-inch] diameter, 38mm [1-1/2- inch] length) and a stainless steel washer with integral rubber seal (1-1/8- inch diameter) such as "Zamac

Hammer-Screw" as manufactured by Powers Rawl.

g. Fasteners for securing wood blocking to concrete substrate shall be sleeved stud expansion bolt, 13mm (1/2-inch) diameter (minimum), with 19mm (3/4-inch) diameter steel washer such as "Kwik Bolt

II" by Hilti.

Masonry Substrate:

h. Fasteners for securing wood to solid masonry shall be galvanized steel expansion anchor, 9mm (3/8-inch) diameter (minimum), with

19mm (3/4-inch) diameter steel washer such as "Countersunk

Kwik Bolt II" by Hilti.

i. Fasteners for securing wood to hollow base masonry shall be 9mm

(3/8-inch) diameter (minimum), threaded rod, with 9mm (3/4-inch) diameter washer, nut, and screen tube such as "HIT C-20 Adhesive

Anchor" by Hilti.

j. Fasteners for securing sheet metal items to concrete substrate shall be a pre-assembled drive anchor with a stainless-steel drive screw, a lead/zinc alloy expansion anchor body (6mm [1/4-inch] diameter, 38mm [1-1/2- inch] length) and a stainless steel washer with integral rubber seal (1-1/8- inch diameter) such as "Zamac

Hammer-Screw" as manufactured by Powers Rawl.

Steel Substrate:

k. Fasteners for securing plywood to steel substrate shall be self-drilling, 38mm (1-1/2-inch) long coated 5mm (No. 10) screw with wafer head such as "Traxx Wood to Metal Fastener" by ITW

Buildex. Fasteners for securing wood nailers/blocking to steel substrate shall be self-drilling coated heavy duty screw, 6mm (1/4-inch) diameter (minimum), with 16mm (5/8- inch) diameter washer such as 6mm (No. 14) “Heavy Duty Screw” by OMG Roof

Products.

l. Fasteners for securing steel to steel substrate shall be self-tapping

6mm (No. 14), 38mm (1-1/2-inch) long stainless steel screw with stainless steel washer and bonded integral rubber seal.

E. Plywood Clip: 0.9mm (20 gauge) galvanized steel H-clip such as "PSCL Panel

Sheathing Clip" by Simpson Strong-Tie Co., Inc.

F. Rust Inhibitive Primer: 100 percent acrylic resin primer such as “Metalclad

Interior- Exterior Acrylic Latex Flat Primer & Finish #41702”, Devoe &

Raynolds Co.

3.01 EXAMINATION:

A. Examine existing buildings and existing roofing to determine existing physical conditions that affect removal of existing roofing and installation of new roofing.

B. Verify that required barricades and other protective measures are in place.

3.02 PREPARATION:

A. Take measures to maintain watertight conditions.

B. Install interior protection and dust partitions where deck penetrations shall be removed or replaced.

C. Protect adjacent surfaces.

3.03 REMOVAL OPERATIONS:

A. Execute removals in careful and orderly manner with least possible disturbance or damage to adjoining surfaces and structure.

B. Avoid excessive vibrations in demolition procedures that would be transmitted through existing structure and finish materials.

C. Roof Removal:

• Remove existing construction to the extent required by the project.

• Locate selective removal equipment throughout the structure and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

• Remove existing roofing and flashings; abandoned and obsolete equipment;

pitch pans, vents, curbs, and other such items; and sheet metal down to roof rafters and purlins.

• Do not stockpile debris on roof surface. Promptly dispose of obsolete equipment and debris at authorized disposal site each day. Use chutes to transfer debris from roof surface to dumpsters.

• Provide protective method, such as plywood set on minimum 25mm (1-inch) EPS insulation, when hauling debris over existing roof.

3.04 RENOVATION WORK:

A. Prepare substrates in accordance with roofing manufacturer's recommendations.

B. Nailers:

• Replace damaged or deteriorated wood nailers and curbs with new nailers and curbs as required.

• Install additional nailers as required as part of Base Bid price.

• Clean and prepare existing surfaces to receive wood nailers and curbs.

• Install wood nailers and curbs continuously with 6mm (1/4-inch) gap between each section. Set level and true. Pre-drill nailers prior to attachment.

• Securely fasten to structure with appropriate fasteners to resist minimum

780N per 300mm (175 pounds per linear foot) force in any direction. Use of powder- actuated fasteners is prohibited. Place a fastener within 75mm

(3-inches) of each end of each section of wood blocking.

• Secure nailers to concrete deck with appropriate fasteners spaced 600mm

(24-inches) on-center.

• Secure nailers to metal deck with screws spaced 300mm (12-inches) on-center, 150mm (6-inches) on-center, 3m (10 foot) from each corner.

• Secure nailers to wood substrate using nails 600mm (24-inches) on-center, staggered. Install nails on an angle.

• Secure nailers with self-tapping steel fastener to steel angle, bar joist, or bulb-T if adequate substrate is not present.

• If attaching wood nailer to vertical masonry wall, utilize appropriate anchors spaced 300mm (12-inches) on-center.

• Reduce fastener spacing 50 percent at a distance of 3m (10 feet) from each corner.

C. Sheet Metal Fabrications:

• Remove and replace ferrous rooftop sheet metal fabrications to match existing.

• Modify existing sleeves and umbrellas on existing equipment as scheduled.

• Repair and renovate non-ferrous rooftop and drainage system sheet metal fabrications as required for permanent watertight installation.

• Paint sheet metal with metal primer.

D. Piping and Conduit Modifications:

• Schedule piping and unit downtime for equipment modifications to coordinate with Embassy's operations.

• Replace existing supports for units and associated piping with new supports.

• Provide temporary supports to maintain unit and piping in operational condition except during switchover.

• Furnish new fittings, piping, and accessories to match existing to replace deteriorated, damaged, or non-functional components or to accommodate new unit elevation, where necessary.

• Upon completion of roof installation, paint exterior piping with aluminized paint and replace or clean jacketing.

E. Curbs and Ducts:

• Secure and modify curbs and ducts to remain, as required to receive new roofing system.

F. Plumbing Vents:

• Extend plumbing vents to outside plane of new metal roofing without penetrating new roof and modify as necessary to accommodate new roof installation.

• Provide pipe extensions and couplings where necessary to achieve minimum 200mm eight above top of newly finished roof surface.

• Utilize same material type and size as existing for new extension.

3.05 CLEANING:

A. Materials, equipment, and debris resulting from demolition operations shall become property of Contractor. Remove and dispose of demolition debris in accordance with applicable city, state, and federal laws at authorized disposal site.

B. Leave substrate clean and dry, ready to receive roofing system.

Site Restoration:

• The contractor shall restore the construction area and adjacent areas to be same as the conditions before the construction. The work includes all utilities, and landscape.

Notes:

• The contractor shall be responsible for disposing removed items from the job site. The

Embassy will notify if any obsolete materials, rubbish to be returned to the warehouse

(located at Rajdamri Compound), or to be completely disposed.

• The contractors shall be responsible for maintaining site cleanliness, site clearing, and all cleaning work.

• The contractor shall submit a list of personnel (architect(s), engineer(s), site manager(s), site superintendent(s), and all workers to the U.S. Embassy upon awarding the contract.

Security clearance process is mandatory in all U.S. Embassy’s compounds and leased spaces.

• The Contractor must comply: All construction and maintenance activities at the Embassy must conform to EM385 1.1 Standard for Construction and OSHA 1910 Standard for

General industry.

• All contractor personnel working in the roof must wear fall protection systems in compliance with OSHA and the “U.S. Army Corps of Engineers Manual EM 385-1-1” for work on heights.

Co-operation and Making Good:

The Contractor shall submit an investigation/construction program in writing to the COR at least thirty (30) days prior to the date of possession of the site. The program should show the sequence of work and the periods within the various stages of the work are to be executed.

The Contractor shall perform the work with minimal disturbance to the building occupants, and the normal services and operation of the Embassy shall not be obstructed by the Contractor’s work.

All work shall be equal in kind, quality and finish to that expected for high quality international standard.

Where the work affects occupied portions of a building, the Contractor shall ensure continuity of building services and necessary access for personnel and vehicles.

Meetings:

The Embassy or the Contractor may request a meeting (either on-site or off-site) to clarify any part of this contract. The project manager, Contractor’s superintendent, COR, and other required persons will normally attend.

The Contractor will keep minutes of every meeting and provide written copies (within two working days) to the COR for approval.

Project Schedules:

Format:

• Prepare schedules as horizontal bar chart with separate bar for each major portion of work or operation, identifying first workday of each week.

• Sequence of Listing: Chronological order of start of each item of work.

• Scale and Spacing: To provide space for notations and revisions.

Content:

• Show complete sequence of construction by activity, with dates for beginning and completion of each element of construction.

• Identify each item by Specification Section number.

• Provide sub-schedules for each stage of work.

• Provide sub-schedules to define critical portions of entire Schedule.

• Coordinate content with Schedule of Values.

• Submit schedule allowing for a 30-day review prior to commencing.

Revision to Schedules:

• Indicate progress of each activity to date of submittal and projected completion date of each activity.

• Identify activities modified since previous submittal, major changes in scope, and other identifiable changes.

• Provide narrative report to define problem areas, anticipated delays, and impact on

Schedule. Report corrective action taken, or proposed, and its effect.

Submittals:

• Submit initial Schedules within thirty (30) days after date of Notice to Proceed. After review, resubmit required revised data within ten days.

• Submit revised Progress Schedules with each Application for Payment.

Distribution:

• Distribute copies of reviewed Schedules to project site file, sub-Contractors, suppliers, and other concerned parties.

• Instruct recipients to promptly report, in writing, problems anticipated by projections indicated in Schedules.

Site Visit (Bid Conference):

The bidders who are interested in submitting proposals shall meet with the COR at 33 Rajdamri

Road, Lumpini, Pathumwan, Bangkok 10330.

The site visit shall be scheduled and confirmed by Facility Management through the Contracting

Officer Representative.

Access to the work site:

The Contractor shall permit the Facilities Manager and COR or any officer authorized by the

COR to have access to the work at all times during the execution of work.

The Contractor superintendent shall meet daily with the COR (unless waived by the COR) to review progress and plans.

Temporary ladders, scaffolds, hoists:

Furnish and maintain temporary ramps, scaffolds, or hoists as required for proper execution of work.

Such apparatus, equipment, and construction shall meet requirement of applicable local safety and labor laws.

Safety:

• Welding and use of open flames in or adjacent to the Embassy properties requires approval from the Facilities Manager (or supervisor). Use of explosive actuated fastening devices shall not be used without the prior permission of the Facilities Manager.

• Observe and enforce all construction safety measures required by the Thai Labor Code, Local Building Codes, Workers Compensation Board, Municipal Statutes and

Authorities. When conflict arises, the code or statute, which is more stringent, shall apply.

• If any personnel are injured, the Contractor has sole responsible for such injury.

• Powered equipment must be in good condition. Electrical and other utility connections must be properly made. Extension cords will be heavy-duty type suitable for the load involved.

Quality Control:

Maintain quality control over suppliers, manufacturers, products, services, site conditions, and workmanship to produce work of specified quality.

Examine each phase of work and have defective conditions corrected before starting subsequent operations, which include cover, or are dependent upon, work in question.

Utilize qualified personnel who have experience with the specified works to produce workmanship of specified quality. The Contractor personnel responsible for the project must qualify as described below:

Senior engineer: A professional engineer in the related field occupies a second class (level 2-Professional Engineer) or higher issued by Board for the Control of the Engineering Profession, Thailand. Or other International Engineering License.

Engineer: A professional engineer in the related field, occupies a third class (level 1-Associate Engineer) issued by Board for the

Control of the Engineering Profession, Thailand. Or other

International Engineering License.

Foreman: A professional technician, high vocational or diploma education in related field.

Site supervision personnel: The contractor shall submit a certificate of the site supervision personnel with a proposal (for technical evaluation).

The Contractor shall apply technical knowledge and specific equipment/tools for related work in the contract.

Temporary Fire Protection:

• During construction, the Contractor shall comply with fire safety practices as outlined in

NFPA and local fire protection codes, and in addition:

• The Embassy requires portable fire extinguishers (stored pressure type, UL fire rating

10A:60B:C) to be readily available at all work sites during entire installation period.

• The Contractor is responsible for properly deploying the fire extinguishers to each work area occupied by the Contractor e.g. welding site, temporary structure, construction office, storage, tool, and workshop sheds. Proper deployment includes advising the COR on the number of fire extinguishers, transport to and from warehouse and work sites, worker training how to operate the fire extinguisher, etc.

• Contractor’s superintendent or other assistant superintendents shall be appointed as project fire warden for entire construction period.

Sub-Contractor:

The awarded Contractor shall not assign this contract or any part of it without the written permission of the Contracting Officer.

No assignment of the contract shall relieve the Contractor from any obligation under the contract or impose any liability upon the Embassy or the Contracting Officer.

Working Hours:

The contractor shall be bound by religious and national holidays of common local observance.

The Administrative Notice issued by the Embassy showing holidays is attached. The Contractor shall also be bound by the working hours customarily observed by the Embassy (07:00-16:00 hours from Monday thru Friday) of each week unless permitted by the COR.

The U.S. Embassy in Thailand will observe the following Thai and American holidays in 2026:

# Date Day Holiday American or

Thai

1 January 1 Thursday New Year’s Day American

2 January 19 Monday Birthday of Martin Luther King, Jr. American

3 February 16 Monday Washington’s Birthday American

4 April 13 Monday Songkran Festival Thai

5 April 14 Tuesday Songkran Festival Thai

6 April 15 Wednesday Songkran Festival Thai

7 May 4 Monday Coronation Day Thai

8 May 25 Monday Memorial Day American

9 June 3 Wednesday

H.M. Queen Suthida

Bajrasudhabimalalakshana’s Birthday Thai

10 June 19 Friday Juneteenth National Independence Day American

11 July 3 Friday Independence Day (Observed) American

12 July 28 Tuesday

H.M. King Maha Vajiralongkorn Phra

Vajiraklaochaoyuhua’s Birthday Thai

13 August 12 Wednesday

H.M. Queen Sirikit the Queen Mother’s

Birthday and Mother’s Day Thai

14 September 7 Monday Labor Day American

15 October 12 Monday Columbus Day American

16 October 23 Friday

H.M. King Chulalongkorn the Great

Memorial Day Thai

17 November 11 Wednesday Veterans Day American

18 November 26 Thursday Thanksgiving Day American

19 December 7 Monday

Substitution for H.M. King Bhumibol

Adulyadej the Great’s Birthday, National Day and Father’s Day (Saturday 5th December

2026)

Thai

20 December 25 Friday Christmas Day American

21 December 31 Thursday New Year’s Eve Thai

Security regulations require a photocopy of the Thai ID card for each worker to be submitted to the COR at least one (1) week in advance. Workers must have same ID cards to enter the compound.

Security regulations require vehicle make type, color and license number for vehicles to enter the compound daily to be submitted to the COR at least 48 hours in advance.

All work performed will be under the observation of the COR. The COR will normally assign an escort to observe the day-to-day activities of the Contractor. Working hours must be approved at least two working days in advance to ensure the availability of the required escort.

Communications:

Where any notice, request, direction, or other communications is required, it shall be in writing.

It shall be delivered in person, sent by registered mail, facsimile (FAX) or electronic mail to the

COR.

Utility interruptions (gas, water, and electrical) require written notice at least one (1) week in advance.

Storage and Handling Materials/Equipment/Tools:

Special care should be given to handling and storing materials/equipment/tools. The ownership of the items is passed from the Contractor only upon acceptance by the COR. Equipment/tools not accepted by the COR is/are the Contractor’s sole responsibility.

Protection:

The Contractor shall protect the work as its proceeds, protect the area, which is next to the construction, and protect the materials and components from damage and deterioration.

The Contractor shall provide barricades as required to protect natural resources, site improvements, existing property, adjacent property, and personnel.

Where pedestrian traffic is through or adjacent to work area, the Contractor shall provide necessary guardrails and barricades to protect pedestrians and to prevent pedestrian access to work areas.

Remove guardrails and barricades at completion of construction.

The Contractor shall submit proposed plan and details of staging area.

Unsuitable Workers:

Upon the request of the COR, the Contractor shall remove any person employed by him who, in the opinion of the COR, is incompetent or has conducted himself improperly. The Contractor shall not permit a person who has been removed to return to the work site.

Contractor’s Liability:

The Contractor must have complete insurance coverage for any injuries or damages that may occur during the construction period.

Final Completion:

After completion of the work, the Contractor shall make an appointment with COR for inspection and final acceptance with the signature of the COR. The work site and related areas must be in a clean and tidy condition.

SUBMITTALS

General:

For each part of work Specified in this Scope of Work, submit the following as applicable, in accordance with Contract Clauses and Conditions.

• The Contractor must include written specifications for the materials and a sample of each material (as required) along with his/her quotation.

• Submit shop drawings showing plans / elevations / sections at not smaller than scale

1:100, and details not smaller than scale 1:20.

Samples:

Submit physical examples to illustrate materials and workmanship; and to establish standards by which completed work is judged, if requested.

Contractor Responsibilities:

• Review shop drawings, material data, and samples prior to submission. Initial, sign, or stamp, certifying the Contractor's review of the submittal.

• Verify:

• Field measurements.

• Field construction criteria.

• Catalog numbers and similar data.

• Coordinate each submittal with requirements of work and Contract Documents.

• Contractor's responsibility for errors and omissions in submittals is not relieved by COR review of submittals.

• Contractor's responsibility for deviations in submittals from requirements of Contract

Documents is not relieved by the COR's…