QA Visa Roof Replacement.pdf

Embassy of the United States of America

Bogotá D.C., Colombia

GSO/ Contracting Unit

Solicitation 19C02026Q0018

VISA PATIO ROOFING REPLACEMENT

QUESTIONS AND ANSWERS

Question No. 1. Quantity of Electrical Outlets: Section 4.7 of the Statement of Work indicates the installation of eight (8) new electrical outlets, while the quantity table in Attachment 2 (Section 10) indicates ten (10) units. Which quantity is correct to quote?

Answer No. 1. The required quantity is ten (10) units

Question No. 2. Required Guarantees and Bonds: Clause G.1.0 establishes a payment/performance guarantee of 50% of the contract value, but Section 7.2 breaks down independent bonds/policies that total 75% (Compliance 20%, Wages and Benefits 15%, Work Stability 30%, Civil Liability 10%). Is the 50% in Clause G.1.0 an overall cap that encompasses these bonds, or are all of them required independently and cumulatively?

Answer No. 2. The bond referenced in Clause G.1.0 and the information outlined in Section 7.2 are not required. Please refer to Clause G.2.1 for the applicable insurance policy requirements.

Question No. 3. VAT Calculation: Section A.1 indicates that VAT is invoiced as a separate line item on the total value, while the indirect costs table in Attachment 2 indicates "VAT (only on profit/markup)."

What is the correct method for calculating VAT for purposes of the proposal?

Answer No. 3. VAT calculation and applicability shall be in accordance with the corresponding DIAN (Dirección de Impuestos y Aduanas Nacionales) authorization governing such matters, as well as the specific tax regime to which the offeror belongs.

Question No. 4. Security Clearance Verification Timeline (RSO Namecheck) vs. Start of Work: The solicitation requires the start of work within 10 calendar days following the Notice to Proceed, but the personnel Namecheck process takes an estimated six (6) weeks and must be submitted seven (7) weeks before the planned start date. How is this timeline requirement reconciled with the actual duration of the vetting process? Is it possible to initiate the Namecheck process prior to formal contract award?

Answer No. 4. The Notice to Proceed will be issued upon the contractor's submission of the required insurance policies and personnel documentation.

Question No. 5. Anti-Corrosive Paint Volume: The color mix specification (Emerald Green 1 gal, Black 1 gal, White 3/4 gal) appears to correspond to a tint/sample recipe rather than the total volume required to cover the 1,000 m² of specified metal structure. Could you please indicate the expected coverage/yield per gallon or the total estimated volume needed?

Answer No. 5. The contractor is expected to calculate the amount of material required. This is fix firm price contract and we required the complete paint of the structure that is covering the approximate area of 1000m2 as well as the columns

Bogotá D.C., Colombia

GSO/ Contracting Unit

Question No. 6. Work Schedule: The authorized working hours are 4:00 PM to 12:00 AM, Monday through Friday. For activities such as painting application (drying times) or work at heights requiring natural light, is there flexibility to work during daytime hours or on weekends for specific phases of the project, subject to COR approval?

Answer No. 6. Please refer to chapter 6 of the Scope of work (SOW) for required working times.

Question No. 7. Scope of Anchor System Recertification: Section 4.4 requests all repair necessary to recertify the fall-protection/work-at-heights anchor system, without an accompanying diagnostic report or prior inspection of its current condition. Is an inspection report available, or is the scope of repairs left to the offeror's discretion following their own assessment during the site visit?

Answer No. 7. The site visit has already been conducted by the offerors. Additionally, the Embassy attaches a report from the installer of the existing system, which will serve as reference information for the identification and quantification of the components currently comprising the fall protection/work-at-heights system. Nevertheless, the offeror shall be responsible for conducting its own diagnostic assessment and technical evaluation of the current condition of the system, and for determining all repairs, reinforcements, replacements, and/or upgrades necessary to obtain its recertification.

The offeror shall include in its Lump Sum price all activities and components necessary to perform the assessment, required corrective work, and final recertification of the system, ensuring compliance with Colombian Resolution 4272 of 2021 and the applicable standards established in the SOW, including ANSI Z359.1. The recertification shall be performed by a certified company with the participation of the qualified professionals required under the solicitation.

Question No. 8. Panel Overlap Over the Water Channel: The "current condition" drawing shows an existing overlap of 0.25 m, but the text only states that the new overlap must extend "beyond the current termination point," without specifying an exact measurement. Could you please indicate the minimum overlap measurement required for the new design?

Answer No. 8. The new panel overlaps over the water channel shall be 0.25 m minimum, measured beyond the current termination point.

Question No. 9. Is an advance payment being considered in this project?

Answer No. 9. No, as per US government regulations advance payments are not allowed.

Question No. 10. Is participation through Joint ventures or consortia acceptable?

Answer No. 10. Yes, it is accepted.

Bogotá D.C., Colombia

GSO/ Contracting Unit

Question No. 11. Throughout the visit, Government representatives indicated that certain additional activities should be considered included within existing bid items. However, this approach may result in different interpretations among offerors regarding the scope of each pay item. Could you clarify?

Answer No. 11. All required activities for this solicitation are specified in chapter 4 of the scope of work (SOW), the contractor shall include the cost of all required activities for chapter 4 in the line items of the quantity chart for bidding.

Question No. 12. We respectfully request the publication of an official schedule identifying the quantities associated with the additional work activities observed during the site visit.

Answer No. 12. Please refer to answer No. 11.

Question No. 13. We respectfully request that the Government reconsider the current requirement for demonstrating 5,000 square meters of relevant roofing experience and reduce this threshold to 1,000 square meters.

Answer No. 13. Please refer to chapter 9 of scope of work for required evaluation factors for this solicitation.

Question No. 14. We respectfully request that the Government consider authorizing construction activities during weekends, federal holidays, Embassy closure days, or other periods in which normal operations are reduced, subject to Government approval and security requirements.

Answer No. 14. Please refer to chapter 6 of the Scope of work (SOW) for required working times.

Question No. 15. Is the existing primary support structure (columns, beams, purlins) galvanized steel, or is it bare/painted structural steel? This determines the surface preparation approach described in Section 4.5.

Answer No. 15 The existing primary support structure, including columns, beams, and purlins, is painted structural steel (non-galvanized). Surface preparation and coating shall be performed in accordance with the requirements specified in Section 4.5 of the SOW.

Question No. 16. Could the Embassy confirm the number of existing fall-protection anchor points on the Visa Patio structure, and indicate whether each is affixed to a concrete element or to a metal structural member (column or beam)? If as-built or safety drawings showing anchor locations are available, we would appreciate receiving them, as this will inform the recertification scope required under Section 4.4.

Answer No. 16. Please refer to Attachment 1 – Works at Heights, which contains the available design information and structural calculations for the existing Visa Patio lifeline system, including details of the existing metallic support configuration and connection. The existing lifeline supports are connected to the metal structural system. The attachment is provided as reference information for the offeror’s evaluation of the existing system. The offeror shall verify in the field the quantity, location, spacing, and current condition of all existing anchor points and lifeline components, based on Attachment 1, the conditions

Bogotá D.C., Colombia

GSO/ Contracting Unit observed during the site visit, and its own technical assessment. This verification shall form part of the diagnostic assessment required to determine all repairs, replacements, reinforcements, and upgrades necessary for final recertification in accordance with Section 4.4 of the SOW.

Question No. 17. Are structural drawings of the existing roof frame available beyond the elevations/sections included in the solicitation (Sections BB’ and CC’)? A dimensioned plan view would allow us to prepare a more precise load-bearing assessment.

Answer No. 17. No further drawings are available

Question No. 18. We respectfully request that the detailed construction schedule be required only from the successful offeror after contract award, rather than as part of the initial proposal submission.

Answer No. 18. A detail schedule of the project execution is required as part of the bidding process for this solicitation.

Question No. 19. We respectfully request that the Government issue an official Site Visit Clarification Memorandum, or a similar written document, summarizing all technical clarifications, instructions, questions, answers, and observations provided during the site visit conducted on July 30, 2026.

Answer No. 19. As discussed during the site visit, the official Questions & Answers document will include all questions submitted along with their corresponding answers. This document will be posted on SAM.gov.

Question No. 20. Is this possible to have access to the following information:

• Roof gutter and rainwater drainage system details.

• Sections and construction details showing roof-to-wall interfaces and other critical connections.

• Roof fastening and attachment details.

• Existing material specifications and thicknesses.

• Drawings or layouts identifying lighting fixtures, loudspeakers, cameras, wiring, utilities, and other components requiring temporary removal or protection.

• Any additional technical documentation necessary to fully understand the existing conditions and project scope.

Answer No. 20. No additional drawings or layouts will be provided due to security restrictions. Available information regarding the column foundation system will be provided to the awarded Contractor, as necessary for execution of the structural work.

Question No. 21. Section 4.6 specifies an overall panel thickness of 50mm for the UVPVC sandwich panels but does not specify a minimum facing (skin) thickness for the UPVC layers. Please confirm whether a minimum facing thickness is prescribed, or whether this is left to the contractor’s proposed

Bogotá D.C., Colombia

GSO/ Contracting Unit certified manufacturer, subject to meeting the UV resistance and high impact performance criteria of Section 9.1.

Answer No. 21. The accepted required roofing system be a 2-inch-thick insulated metal sandwich panel with high-density polyurethane (PUR/PIR) core and metal facings, from a certified manufacturer such as Metecno, Kingspan, Isopan, Ternium, or approved equivalent. The proposed system shall meet the UV resistance, high-impact performance, and all other applicable requirements of the SOW. The final color will be determined by de COR upon contract award.

Question No. 22. What is the mounting height of the existing luminaires above finished floor level?

Answer No. 22. Please refer to section drawings of chapter 4.6 for required height

Question No. 23. Will the new luminaires operate at 110V or 220V? The solicitation includes a technical data sheet for an LED driver rated for 120–277 Vac input and 65W maximum output; please confirm whether this corresponds to the fixture type and quantity (38 units) referenced in Section 4.7, or if a separate luminaire cut sheet should govern.

Answer No. 23. The voltage of the lights at the Visa Patio is 277 volts.

Question No. 24. What is the approximate length of the new electrical feeder (acometida) run from the AC panel/tablero to the farthest fixture, for the purpose of estimating conduit and wire quantities?

Answer No. 24. The approximate length of the new electrical feeder run from the AC panel to the farthest fixture is 85 linear meters. Final routing and quantities shall be field-verified by the Contractor.

Question No. 25. May the contractor designate a laydown/staging area within Embassy premises for new material storage and for removed material pending certified disposal, or must all material be staged off-site?

Answer No. 25. Yes, laydown area can be used in inside compound. The contractor is expected to construct a temporary camp in the designated area.

Question No. 26. Are sanitary facilities required to be provided by the contractor (e.g., portable units), or may Embassy restroom facilities be used by contractor personnel during working hours?

Answer No. 26. Compound restroom facilities can be used by the contractor. The contractor is responsible for the cleaning during the shift works.

Question No. 27. Will the Embassy provide temporary construction power and water for the duration of the works, or must the contractor supply independent sources?

Answer No. 27. The USG will provide utility services. The contractor is required to provide its own connection cables and water fixtures from point provided by the USG

Bogotá D.C., Colombia

GSO/ Contracting Unit

Question No. 28. Could the Embassy provide the exact areas (m²) of roof to be replaced under Section 4.6 versus areas to remain in place and receive maintenance/anticorrosive treatment under Section 4.5, ideally marked on a plan?

Answer No. 28. Approximate area for replacement 1000m2. Approximate area for cleaning but not replacing 1000m2

Question No. 29. Section 4.5 describes the maintenance scope for retained roof sections (visual/technical inspection, surface preparation, and anticorrosive coating per the specified Pintulux system). Please confirm this is the complete maintenance scope or advise if additional work items apply.

Answer No. 29. The scope described in Sections 4.5 and 4.6 includes the maintenance and corrective work necessary to leave the retained roof sections and their supporting elements in good condition and fully functional. Based on the required visual and technical inspection and existing field conditions, the Contractor shall perform necessary repairs to deteriorated components, including replacement of damaged or corroded fasteners, repair of deficient welds or connections, sealing of joints and penetrations, and repair or replacement of deteriorated purlins or secondary structural elements, as required. The intent is to deliver a complete, safe, watertight, and fully functional roofing system. These activities shall be included in the Lump Sum price.

Question No. 30. Section 4.6 specifies a gutter cross-section of 0.45 x 0.10 m but does not indicate the total linear length of new gutter required. Could the Embassy confirm the approximate development (length) of gutter to be supplied and installed, and the required material specification (e.g., prepainted aluminum, galvanized steel)?

Answer No. 30.

Please see drawings attached in the SOW; however, the Contractor shall verify the final quantity in the field based on the existing gutter configuration and actual site conditions. The Contractor shall replace all existing gutters associated with the roof areas to be replaced, as required under Section 4.6 of the SOW.

The required gutter cross-section shall be 0.45 m × 0.10 m. The new gutter shall be fabricated from galvanized steel sheet with a corrosion-resistant finish suitable for exterior exposure gauge 16. The Contractor shall include all required supports, joints, connections, sealants, waterproofing components, and accessories necessary to provide a complete, watertight, and fully functional drainage system. The canals area located in each of 5 axes from 1-5 and located between axes A’ and D. each column represents a gutter.

Question No. 31. During the site visit held on July 30, 2026, Embassy representatives indicated that each offeror should propose its own design, materials, and specifications for the new roof system to be supplied and installed. Absent a common baseline design, dimensions, and technical specifications furnished by the Embassy, offerors may submit substantially different alternatives in terms of materials, Bogotá D.C., Colombia

GSO/ Contracting Unit dimensions, and construction system, which would prevent a consistent technical and cost evaluation basis across proposals. We therefore respectfully request that the Embassy provide the design drawings for the new roof (referenced as included in the original solicitation) in plan view, showing panel layout, gutter routing, and luminaire placement, so that all offerors work from the same design baseline, quantities, and materials when preparing their pricing, ensuring a fair competitive basis and a comparable technical and cost evaluation among proposals. Alternatively, should the Embassy intend to preserve design flexibility for each offeror, we request that a set of mandatory minimum technical characteristics (salient characteristics) be published — for example, total roof area and development to be intervened, minimum panel performance specifications, gutter section and material, and luminaire quantity/location

— so that a common technical basis exists for evaluation, even where offerors propose different systems or manufacturers.

Answer No. 31. The Embassy confirms that offerors may propose their own certified manufacturer and technically compliant roofing solution; however, all proposals shall comply with the minimum technical, dimensional, and performance requirements established in the SOW and these clarifications. The existing roof geometry, dimensions, slopes, and structural configuration shall be maintained as the design baseline.

No additional design drawings will be issued. Required shop drawings, technical data, and structural calculations shall be submitted by the Contractor for COR approval.

Question No. 32. What type of solicitation is this? (e.g., Invitation for Bids [IFB], Request for Proposals [RFP], or Request for Quotations [RFQ]?)

Answer No. 32. This is an RFQ.

Question No. 33. Is it acceptable to propose a performance period exceeding 120 calendar days?

Answer No. 33. Not acceptable

Question No. 34. Does the term "calendar days" refer to consecutive days (including weekends/holidays) or working days from Monday to Friday?

Answer No. 34. Calendar days include weekends and holidays

Question No. 35. Could you clarify the specific meaning of the deadline date and time for receipt of offers under Block 13.a? The deadline for receipt of offers has been extended. Offers must be received no later than August 14, 2026, at 4:00 p.m. Bogotá local time (GMT-5), as reflected in SAM.gov.

Answer No. 35. Quotations are due by August 12, 2024 at 16:00 hours. Your quotation must be submitted electronically to BogotaGSOCompras@state.gov.

Question No. 36. Does Block 13.b refer to a Bid Guarantee/Bond? The alternatives provided are "NO" and "NOT REQUIRED"; please clarify to facilitate our decision-making process.

Answer No. 36. Bid guarantee is not required.

Question No. 37. What insurance policies and performance/payment bonds must be structurally in place prior to site mobilization? (Merged from General Conditions).

mailto:BogotaGSOCompras@state.gov

Bogotá D.C., Colombia

GSO/ Contracting Unit

Answer No. 37. Please refer to Section G.

Question No. 38. Pursuant to Clause G.5.2 ("Security Clearances"): It is anticipated that background checks will take thirty (30) days per person. Will this process take place post-award but prior to contract signing, or will it run concurrently within the contract performance period?Question No. 38. The security background will run before issuing the Notice to Proceed for the contract

Question No. 39. What is the exact procedure and estimated agency lead time for personnel security vetting and RSO (Regional Security Office) Namechecks? (Merged from General Conditions).

Answer No. 39. RSO procedures as well as the times are internal information. The estimated time was included in the solicitation package.

Question No. 40. In what manner shall the Contractor guarantee compliance with the provisions of

DOSAR 652.242-73 AUTHORIZATION AND PERFORMANCE?

Answer No. 40. In the ways dictated by the Colombian government.

Question No. 41. Regarding Colombian tax and accounting regulations: If the project is classified as a service, a 19% Value Added Tax (VAT/IVA) applies to all estimated direct costs. Conversely, if it is classified as a civil work for the technical retrofitting of the canopy roof and structural steel optimization, the VAT applies solely to the estimated PROFIT (Utilidad) within the AIU component (Administration, Contingencies, and Profit), where the AIU is calculated over the estimated direct costs. Accordingly, our proposal would include the estimated AIU within the total project direct costs, and the VAT corresponding to the estimated profit would be listed separately. Does the Embassy foresee any issue or conflict with this accounting interpretation for proposal evaluation?

Answer No. 41. See answer No. 3.

Question No. 42. Throughout the Statement of Work (SOW) issued by the Bureau of Overseas Buildings Operations (OBO) Bogotá, whenever it states "the Contractor shall submit": Is it understood that these deliverables apply exclusively to the selected contractor during contract execution, and are not requirements for proposal submission, except for those explicitly requested under Section 9

EVALUATION FACTORS (TECHNICAL AND ADMINISTRATIVE)?

Answer No. 42. Correct. The contractor is also expected to submit a detail proposed working schedule for the technical evaluation of proposals.

Question No. 43. What are the designated access routes and gates for construction personnel, materials delivery, and heavy equipment? (Merged from General Conditions).

Answer No. 43. Post 1 and Post 2 are the access points for this projects. The day to day access coordination shall be discussed with the COR for the awarded company.

Question No. 44. Where exactly will the temporary staging area for field offices, construction trailers, and material storage laydown be located within the compound? (Merged from General Conditions).

Answer No. 44. The staging area will be within the visa patio of triangle parcel by post 1. The contractor is expected to submit a stating plan for COR approval upon contract award.

Bogotá D.C., Colombia

GSO/ Contracting Unit

Question No. 45. Will the contractor and its personnel be permitted to use the facility’s existing sanitary facilities, or must the supply of temporary portable/dismantlable units be factored into the cost estimation?

Answer No. 45. Refer to answer for question No. 26

Question No. 46. Is the entry of mobile phones, digital cameras, and/or laptop computers permitted for work execution and QA/QC documentation by the contractor’s laborers and professional personnel?

Answer No. 46. No picture taking is allowed for any contractor. The phone and laptop entrance will be under explicit RSO approval. The USG reserves the right to not allow electronic equipment entrance into the compound.

Question No. 47. Which specific areas within the project scope must remain fully operational for the public during construction, and what physical safety measures (e.g., overhead protection, debris netting) must be implemented to ensure user protection? (Merged from General Conditions).

Answer No. 47: The Consular/Visa Patio must remain operational and accessible to the public throughout construction. Work shall be performed in phases and coordinated with the COR and Consular operations to minimize disruption. The Contractor shall provide all necessary temporary safety barriers, fencing, warning signage, and protective measures to maintain safe pedestrian circulation and protect the public and adjacent facilities. Additional protection, including overhead protection or debris containment, shall be provided as required by the Contractor’s approved safety and risk assessment for each phase of work.

Question No. 48: What specific operational constraints, shift limitations, or noise restrictions exist due to ongoing daily consular and visa operations? (Merged from General Conditions).

Answer No. 48: The visa patio shall be usable at all times

Question No. 49: Where will removed materials and demolished roofing be temporarily staged prior to final disposal? (Merged from General Conditions).

Answer No. 49: The contractor is required to remove all debris upon dismantling. A temporary space will be designated by post 1. The debris cannot remain for more than 24 hours in the compound prior its certified disposal.

Question No. 50. Which egress routes and corridors will be designated for debris removal and construction waste hauling? (Merged from General Conditions).

Answer No. 50: Post 1 and Post 2 are the access points for this projects. The day to day access coordination shall be discussed with the COR for the awarded company.

Question No. 51: Are there specific environmental certification requirements or manifests required to validate the lawful disposal and final deposition of construction waste? (Merged from General Conditions).

Answer No. 51: Certifications as part as Colombian law environmental regulations.

Question No. 52. Where will Personal Protective Equipment (PPE) storage lockers and first-aid/emergency medical stations be located or permitted on site? (Merged from General Conditions).

Answer No. 52. The contractor is expected to construct the temporary camp which must include all safety and security elements as per safety local regulations.

Bogotá D.C., Colombia

GSO/ Contracting Unit

Question No. 53. What local permits, environmental notifications, or municipal authorizations (if any) are required prior to the commencement of work under Embassy jurisdiction? (Merged from General Conditions).

Answer No. 53. No local permit required for construction. Certified disposal is required as part of this solicitation.

Question No. 54. If electrical power outages/shutdowns are required to execute critical work, is it feasible to schedule and coordinate them directly with the COR?

Answer No. 54: Yes, this coordination shall be discussed with the COR

Question No. 55: Is it correct to understand that the Mobilization/Notice to Proceed (NTP) and commencement of work must occur within the first ten (10) calendar days of the minimum proposed performance period of one hundred twenty (120) calendar days?

Answer No. 55. It is incorrect. The notice to proceed will be issued once the awardee submit the required documentation/ information to start the work.

Question No. 56: What specific file format is required for the construction schedule under the "Schedule for Construction Contract" clause? (e.g., Primavera P6, MS Project, Gantt chart PDF?)

Answer No. 56: As part of the bidding process, MS project presented in PDF format is required.

Question No. 57: What are the exact physical dimensions of the roof canopy area to be serviced? Are there known discrepancies between the actual field measurements and the provided conceptual drawings?

(Merged from General Conditions).

Answer No. 57: The approximate roof area is 1,000 m². All dimensions and quantities are approximate and shall be field-verified by the Contractor. The Embassy is not aware of any significant discrepancies between the existing conditions and the provided drawings. The area for conapy cleaning additional to the replacement is 1000 approximately.

Question No. 58: Are there site-specific environmental conditions that may impact execution (e.g., ambient humidity thresholds for coatings application, micro-drainage issues, or concurrent work/trade constraints within the courtyard)? (Merged from General Conditions).

Answer No. 58: No specific environmental conditions beyond those identified in the SOW are known.

The Contractor shall account for actual site and weather conditions and coordinate all work with the COR and Consular operations.

Question No. 59. Are there any specific safety advisories, risk registries, or lessons learned provided by the Embassy regarding site-specific structural hazards or previous courtyard projects? (Merged from General Conditions).

Answer No. 59: . No additional site-specific safety advisories, risk registries, or lessons learned are available beyond the safety requirements and existing-condition information provided in the solicitation.

Question No. 60. Are As-Built drawings available for the existing structural steel framing, as well as layout details for the current roof tiles and their fasteners?

Answer No. 60. No additional As-Built drawings are available. The available existing roof drawings and details are included in the solicitation. Existing framing, roof panels, and fastening conditions shall be field-verified by the Contractor.

Question No. 61. Are As-Built drawings available for the electrical systems, communications network, surveillance and control systems, and/or ICT networks that fall within the scope of this intervention?

Answer No. 61. See answer 60

Question No. 62. Are there detailed blueprints, engineering drawings, or any other necessary technical information available for this project, distinct from the Statement of Work (SOW) / Specifications?

Answer No. 62. See answer 60

Question No. 63. In the absence of As-Built drawings for the load-bearing canopy structure: Is the cost of performing a detailed field survey/as-built verification included in the Embassy's independent government cost estimate (IGCE)? Is this field survey expected to be completed within the estimated project performance period? Can this activity be coordinated with the Contracting Officer's Representative (COR) to be performed using drone-based photogrammetry/mapping technology?

Answer No. 63. Yes. The required field verification is part of the Contractor’s scope and shall be included in the Lump Sum price and completed within the contract performance period. Use of drones is prohibited.

Question No. 64. Is it understood that the afore mentioned field survey would satisfy the requirements set forth in Clause G.3.1.2 regarding "As-Built" drawings?

Answer No. 64. No. The field survey may serve as a basis for the As-Built drawings; however, the Contractor shall submit final As-Built documents reflecting the work as actually completed, in accordance with Clause G.3.1.2.

Question No. 65. Given that there is an interim period between "Substantial Completion" and "Final Acceptance/Completion" during which the turned-over spaces will be occupied: Must the contractor bear the costs and responsibility for repairing any damages caused by end-users in areas that have already received Substantial Completion?

Answer No. 65. . No. The Contractor is responsible for correcting defects or damages attributable to its work. Damage caused by end-users after Substantial Completion is not the Contractor’s responsibility.

Question No. 66. Are phased or partial "Substantial Completions" and/or "Final Completions" contemplated per individual area or space according to the project scope?

Answer No. 66. No. Phased construction is required to maintain Consular operations; however, Substantial Completion and Final Completion will apply to the project as a whole.

Question No. 67. Is the replacement of structural steel connectors and/or load-bearing members (in addition to cables/guy wires) included in the project's cost estimate in the event that significant corrosion damage is detected?

Answer No. 67. Please refer to Answer No. 29. Necessary repairs or replacement of deteriorated connectors and secondary structural elements are included in the scope. Significant deterioration affecting primary load-bearing members shall be reported to the COR for evaluation prior to proceeding.

Question No. 68. Does the replacement of electrical components include conduits, wiring, and distribution panels in addition to the lighting fixtures?

Bogotá D.C., Colombia

GSO/ Contracting Unit

Answer No. 68. The replacement of the 38 existing units will need only the components necessary for the connection of the new lamp. The 10 new lamps will need conduit, wiring and all the elements required for their connection, according to RETIE.

Question No. 69. Will the installation of the eight (8) new electrical outlets, along with the completely new electrical distribution system, be surface-mounted (exposed conduit)?

Answer No. 69. The conduit for the 10 new electrical outlets will be IMC conduit, surface mounted.

Question No. 70. Considering that electrical works must comply with mandatory local regulations (RETIE and NTC 2050) as well as international standards (NEC): Is a final RETIE certification required upon completion? Please note that local utility companies and authorized inspection bodies do not issue certifications for partial works.

Answer No. 70. Our personnel will inspect the compliance of the electrical standards of the project.

Question No. 71. Do National Electrical Code (NEC) and OBO (Overseas Buildings Operations) standards apply to the procurement of electrical materials for this project?

Answer No. 71. NEC, OBO standards and RETIE

Question No. 72. Does the scope of work for the recertification of anchor points, identification verification, and minimum load capacity verification include the potential replacement of anchor points and necessary hardware/materials?

Answer No. 72. Yes. Please refer to Answer No. 4. The scope includes all necessary repairs, replacement of anchor points, and associated hardware/materials required for final recertification.

Question No. 73. Does the cleaning of the existing audio system include a preliminary functionality check, and is it covered under the scope of work for the replacement of system components?

Answer No. 73. Yes. The scope includes cleaning and operational verification of the existing audio system. Replacement of audio system components is not included in the scope.

Question No. 74. Are there any Buy American Act, Balance of Payments Program, or geographic origin restrictions regarding the manufacture and procurement of the high-performance PVC sandwich panels (50 mm thickness)?

Answer No. 74. No restrictions apply to this Overseas requirement.

Question No. 75. Is the procurement of aerial work platforms, scaffolding, and/or personnel lifts permitted via local third-party rental companies?

Answer No. 75. Yes. Equipment may be rented from local third-party companies, provided it meets all certification, inspection, safety, and operational requirements established in the SOW and applicable regulations. Only properly trained and certified personnel may operate the equipment.

Question No. 76. Regarding SSPC recommendations for structural steel maintenance: Is it optional to utilize Mechanical/Power Tool Cleaning methods (SSPC-SP 3 / SP 11) and/or Abrasive Blast Cleaning (SSPC-SP 6/NACE No. 3 or SSPC-SP 10/NACE No. 2)?

Bogotá D.C., Colombia

GSO/ Contracting Unit

Answer No. 76. Yes. The surface preparation method shall be appropriate to the existing steel condition and the proposed coating system. Mechanical/power-tool cleaning or other manufacturer-approved methods may be used where suitable. Abrasive blast cleaning is not mandatory for all surfaces but shall be used where required by the coating manufacturer or existing surface conditions.

Question No. 77. Acknowledging that the degree of translucency and color of the high-performance 50 mm UVPVC sandwich panels impacts procurement costs: Has a definitive specification or standard been established regarding these parameters?

Answer No. 77. Approximately 25% of the roof area shall be translucent and 75% shall consist 2-inch-thick insulated metal sandwich panel with high-density polyurethane (PUR/PIR) core and metal facings, from a certified manufacturer such as Metecno, Kingspan, Isopan, Ternium, or approved equivalent..

Translucent panels shall provide diffused natural light and UV protection. Final color and appearance shall be subject to COR approval based on submitted samples.

Question No. 78. Are the structural bays/modules adjacent to the two (2) main project zones— specifically the area contiguous to the restrooms and the exit zone—included within the scope of work?

Answer No. 78. Yes. These structural bays/modules are included in the project scope.

Question No. 79. Must the replacement gutters match the exact material specifications, dimensions, and color profiles of the existing ones?

Answer No. 79. No. The new gutters shall comply with the dimensions and technical requirements specified in the SOW. Material, finish, and color shall be compatible with the new roofing system and subject to COR approval.

Question No. 80. Please confirm whether the proposal shall include a structural assessment or inspection of the existing steel structure. If so, please indicate the applicable BOQ item and define the required scope (visual inspection only, if applicable).

Answer No. 80. Yes. The SOW includes a visual/technical inspection of the existing steel structure as part of the structural steel maintenance scope. No separate structural analysis is required. This activity is covered under the BOQ item “Metallic structure painting with required paint as per SOW.

Question No. 81. Please provide the most current As-Built drawings for the existing roofing system and supporting structure for all areas included within the project scope.

Answer No. 81. No additional As-Built drawings are available for distribution due to security restrictions. Offerors shall rely on the solicitation documents and field conditions verified during the site visit.

Question No. 82. Please provide electrical drawings showing the location of the existing lighting fixtures, conduits, wiring, and other electrical installations that may be affected during construction.

Answer No. 82. See answer 60 Question No. 83. If deteriorated elements or unforeseen site conditions are encountered during demolition or construction, please clarify the procedure for reviewing, approving, and incorporating such additional work into the contract scope.

Answer No. 83. Based on the site visual inspection, the existing structure is generally in good condition.

Repairs and replacement of deteriorated components, including fasteners, connections, purlins, welds, and

Bogotá D.C., Colombia

GSO/ Contracting Unit seals, are included in the Contractor’s scope. Any significant unforeseen condition beyond the reasonably anticipated scope shall be reported to the COR for evaluation before proceeding.

Question No. 84.Please confirm whether the quantities included in the Bill of Quantities (BOQ) are final quantities or are provided for bidding purposes only.

Answer No. 84. The BOQ quantities are approximate and provided for bidding purposes. The Contractor shall field-verify all quantities and execute the complete scope accordingly.

Question No. 85. Are there any mandatory manufacturers, approved brands, or minimum technical specifications for the roofing materials, waterproofing systems, fasteners, and accessories?

Answer No. 85. No specific manufacturer is mandatory. Materials shall meet the minimum technical requirements of the SOW and Q&A clarifications. Roofing panels shall be from a certified manufacturer (e.g., Metecno, Kingspan, or approved equivalent). Waterproofing, fasteners, and accessories shall be compatible with the proposed roofing system and subject to COR approval.

Question No. 86. Considering that the established working hours are Monday through Friday from 4:00 p.m. to 12:00 a.m., would daytime work or weekend work be authorized when required to maintain the project schedule?

Answer No. 86. Please see answer 6

Question no. 87. Are there any Embassy operational restrictions, or Visa Section operational requirements, that may limit construction activities on specific dates or during certain hours?

Answer No. 87. Yes. Construction activities shall not interfere with Consular/Visa Section operations.

Specific restrictions may apply based on operational or security requirements and will be coordinated with the COR in advance.

Question No. 88. Considering that the personnel security clearance process may take approximately thirty

(30) days, please confirm whether this period is included within the contractual performance period or whether it will occur prior to the Notice to Proceed.

Answer No. 88. The personnel security clearance process shall occur prior to the start of on-site construction activities and is not included in the construction performance period. The Contractor shall submit the required personnel documentation sufficiently in advance to complete the security clearance process prior to the Notice to Proceed.

Question No. 89. Are there any restrictions regarding the entry and use of aerial work platforms, lifting equipment, scaffolding, delivery vehicles, or other construction equipment required for the execution of the project?

Answer No. 89. The regional security office RSO of the embassy has the right to deny or accept the entry of any material, person or equipment.

Question no. 90. What is the estimated turnaround time for the review and approval of submittals, product data, shop drawings, and material samples?

Answer No. 90. COR has 10 calendar days for document review after NTP

Bogotá D.C., Colombia

GSO/ Contracting Unit

Question No. 91. Is there a specific procedure for obtaining approval of work permits for work at height, hot work, and other high-risk activities?

Answer No. 91. Contractor shall follow Colombian work at heights regulation and comply with it

Question No. 92. In what format should the As-Built drawings, Operation and Maintenance (O&M) Manuals, warranties, and all closeout documentation be submitted for Final Acceptance?

Answer No. 92. ACAD and PDF formats are accepted Question No. 93. Please provide the procedures for the delivery and removal of materials, including designated unloading and storage areas, security requirements, authorized delivery schedules, and driver access requirements.

Answer No. 93. The contractor is expected to submit those procedures for COR approval.

Question No. 94. Please confirm whether the Contractor will be permitted to install a temporary site shelter (tent) for personnel welfare and for the storage of materials, tools, and equipment.

Answer No. 94. Please refer to answer 25

Question No. 95. Please confirm which temporary utility connections (electrical power and water) will be made available for the execution of the work.

Answer No. 95. Please refer to answer 27

Question No. 96. Please indicate whether there are any specified procedures or approved cleaning products for cleaning the existing roof prior to the installation of the new roofing system.

Answer No. 96. Approved cleaning products shall be neutral-pH, non-abrasive, non-corrosive cleaners specifically suitable for aluminum and prefinished/coated metal surfaces. Products containing strong acids, caustic alkalis, chlorides, abrasive compounds, or other chemicals that may damage the existing finish are not permitted. The Contractor shall submit the proposed product technical data sheet for COR approval prior to use.

Question No. 97. Please indicate under which BOQ item the roof cleaning activities should be included.

Answer No. 97. Please include it in item No.3

Question No. 98. Please confirm the required percentage of translucent roof panels and insulated sandwich panels to be incorporated into the roofing system.

Answer No. 98. Refer to question 77

Question No. 99. Please confirm whether the work area may be delineated using standard "DANGER" or "CAUTION" barrier tape, or whether additional perimeter protection measures are required.

Answer No. 99. Shade perimeter fence is required. Safety and security signage according to local regulations and a permanent safety inspector.

Question No. 100. Since the Contractor must procure long-lead materials and mobilize subcontractors prior to the commencement of the work, we respectfully request that the decision not to provide an advance payment be reconsidered.

Answer No. 100. Please refer to answer 9

Question No. 101. Please indicate under which BOQ item the maintenance of the sound system should be included.

Answer No. 101. Please refer to section 4.8 of the SOW for audio system requirements.

Question No. 102. Please confirm the expected turnaround times for the review and approval of RFIs, submittals, shop drawings, material samples, and any other Contractor requests during project execution.

Answer No. 102. COR has 10 calendar days for document review after NTP

Question No. 103. Which is the required paint scheme for the metal structure, SP3 or SP6?

Answer No. 103. SP6 is required.

Question No. 104. Please confirm whether a staging/storage area will be provided for the contractor's materials, tools, and equipment (new roofing, manlift, etc.) during the contract activities and, if so, please indicate its dimensions.

Answer No. 104. Refer to answer 49 and 52

Question No. 105. Should the roof's perimeter fascias also be painted? If so, please indicate the required color.

Answer No. 105. Yes, they are required to be painted. Colors as per section 4.5 of the SOW.

Question No. 106. Must the roof's lightning system be removed during the intervention for reinstallation of the existing system, or should a new one be supplied and installed?

Answer No. 106. The lightning system must be removed and reinstalled after the intervention.

Question No. 107. Please describe the characteristics of the perimeter enclosure required within the Visa patio's embassy during the work activities.

Answer No. 107. Contractor shall submit an accident and prevention plan as well as have a safety inspector at all times. The safety inspector shall be a professional with 5 years of experience other than the site superintendent. The contractor is also expected to submit a staging area plan for COR approval.

Question No. 108. What percentage of transparency is required for the new roofing to be installed, in accordance with the information provided during the site visit?

Answer No. 108. Please refer to answer 77

Question No. 109. Please confirm the development (girth), gauge, and supports of the new gutter/channel to be installed on the roof, as well as the fastening system. Is there a technical specification for joints or overlaps (rivets, screws, or welded connections)?

Based on sketch provided in SOW documents, rain gutter looks like a pre-fab gutter fixed to support elements through welding and fasteners.

Answer No. 109. New metallic water gauge shall be 16

Question No. 110. Benchmark showed, for Colombian suppliers, no immediate availability of this type of roofing; the suppliers consulted indicated that it must be imported, mainly from China, with estimated lead times of 120 to 180 days. Given this, is it possible to extend the performance period for the new roofing?

Bogotá D.C., Colombia

GSO/ Contracting Unit

Answer No. 110. Please refer to answer 21

Question No. 111. For the work under this contract, it would be technically preferable to use a scissor-type manlift and certified scaffolding instead a regular manlift. Is the use of this equipment permitted?

Answer No. 111. Please refer to section 4.2 of the SOW

Question No. 112. Please provide the photographs taken during the site visit, in order to review the structure's details and more accurately define the scope of the maintenance work.

Answer No. 112. No photo sharing is allowed.

Question No. 113. Please identify and clarify on which axes of the drawing provided in the SOW the gutters/channels to be replaced are located.

Answer No. 113. Axes 1-5 of the drawing from section 4.6 of SOW have canals to be replaced.

Question No. 114. Please provide drawings and scope of work for additional canopys located into Visa Patio area, and confirm the works required in theses structures.

Answer No. 114. No further drawings are available.

Question No. 115. Under which standard should the structural integrity of the roof structure be verified:

NSR-10 code or ASCE, AISC codes?

Answer No. 115. Colombian and American Standards. Higher standards shall govern.

Question No. 116. Is cleaning required for the columns of the structure adjacent to the roofing intervention? If so, please indicate the scope of work.

Answer No. 116. Yes, Refer to section 4.8 of the SOW

Question No. 117. Please indicate whether the existing sun louvers (cortasoles) require intervention. If so, specify whether they must be removed and repainted, and define the required finish for this element.

Answer No. 117. Yes, they shall be removed, re-painted and re-installed. Damaged fastener accessories during removal shall be replaced when re-installed. Please refer to section 4.5 of the SOW for painting requirements.

Question No. 118. Is it the contractor's responsibility to remove the audio equipment installed on the roof structure? If so, will this equipment be handed over to embassy personnel for safekeeping and later reinstalled by the contractor upon completion of the work?

Answer No. 118. Please refer to section 4.8 of the SOW

Question No. 119. In order to properly size the fall protection system and submit a proposal consistent with the project requirements, please advise: (i) how many fixed anchor points are planned or installed on the roof; (ii) how many of these correspond to anchor points with an energy-absorption system for fall arrest; (iii) the total linear length (in meters)…