RFQ - 19BR9325Q0021 - Facility Infrastructure Upgrades.pdf

U.S. Consulate General Sao Paulo Date: July 24, 2025

Dear Prospective Offeror:

Subject: Request for Quotes 19BR9325Q0021

Enclosed is a Request for Quotes (RFQ) for Facility Infrastructure Upgrades (30 SQM) Including Electrical, HVAC, and Thermal-Acoustic Improvements. 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.

A pre-proposal meeting will be held at the U.S Consulate Sao Paulo on August 8, 2025.

Quotations are due by August 22, 2025. 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 ProcurementSP@state.gov. It is important to make sure the submission is made in 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 should exceed the 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-1442

2. Section A, Pricing

3. Section K Representations and Certifications

4. Additional information as required in Section I

5. Proof of SAM Registration

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 time of proposal submission may deem the offeror’s proposal to be considered non-responsible 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.

https://www.sam.gov/

Sincerely, GSO Procurement Sao Paulo Contracting Officer

Enclosure:

TABLE OF CONTENTS

SF-18 OR SF-1442 COVER SHEET

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. INSTRUCTIONS ON HOW TO SUBMIT A QUOTATION

J. EVALUATION CRITERIA

K. REPRESENTATIONS, CERTIFICATIONS AND OTHER STATEMENTS

SECTION A - PRICING

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 insurances, overhead and profit.

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

A.1 VALUE ADDED TAX

VALUE ADDED TAX (VAT). The Government will not reimburse the Contractor for VAT under this contract. The Contractor shall not include a line for VAT on Invoices as the U.S.

Embassy has a tax exemption certificate with the host government.

SECTION B - STATEMENT OF WORK

The character and scope of the 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.

STATEMENT OF WORK (SOW)

The goal of this project is to implement the construction activities and hire specialized services outlined next. The construction activities and services outlined in this SOW will enable the access, permit the installation, and facilitate the operation of a heavy equipment (nitrogen generator) to be hoisted and placed inside room 6102 in Building #6. Building #6 is 80% located below grade level and 20% above grade level (roughly).

Figure 2 – Equipment installation inside room 6102 (Building #6).

The equipment weighs 1.23 tons. The equipment crate has dimension of 2.00m high (87”) x 1.27m length (50”) x 1.01m width (40”). The equipment will be hoisted by a crane truck lifting it from the road elevation (next to the far up step #1) and placing it over a concrete platform about 2.8 meters below the lifting elevation (outdoor concrete platform to be built next to step #12 in front of steel door D1) – details in figure 5. The crane truck company will use iron turtles and pallet trucks to haul the equipment placed at the outdoor concrete platform and slide it inside room 6102. The equipment crate dimension is equal or slightly larger than the existing door openings D1 and D2. The Air Force personnel will be responsible for hiring a crane truck company and uncreating the equipment before hauling it through doors D1 and D2. Crane truck services, uncreating the equipment, and hauling the Nitrogen Generator inside Building #6 are assignments and expenses that will not fall under the contractor’s responsibility.

The awarded contractor will be responsible for managing, coordinating, and implementing the activities and services described below. The awarded contractor cannot, under any inexcusable circumstances, go beyond the time scheduled for the job completion, exceed the proposal´s budget, transfer or assign to third parties any or all the contractor’s responsibilities without CO’s written approval. The framework for the activities and services involved with this project are:

4.1 - Demolition.

4.2 - Concrete Platform/Pad.

4.3 – Steel Work.

4.4 - GWB Panels/Partition.

4.5 - Electrical Work.

4.6 - HVAC Work.

4.7 - Steel Plate and Handrail.

4.8 - Thermal-Acoustic Treatment.

4.9 - Concrete Work.

4.10 – Fire Adjustments.

4.11 - Painting.

4.1 – Demolition

Assets listed in this section shall be demolished or removed from the job site to facilitate the equipment crate access to Building #6. The last three bottom concrete steps (in front of steel door D1), steps #9, #10 and #11 (step dimensions of 1,70mm x 400mm x 200mm), shall be demolished to enable the construction of a flat rectangular reinforced concrete platform in the same elevation as the elevation of step #12 (see figure 5). The rectangular reinforced concrete platform will be used, temporarily, to place the equipment crate on the top of it before it is hauled inside Building #6 (there are few limitations preventing the crane truck from lifting, reaching, and placing the equipment crate inside room 6101). After removing the stairs, the new slab at bottom may require a vertical portion to retain soil under the remaining stairs.

Figure 3 – Demolition / removal plan.

The demolition process also involves drilling holes through the masonry walls or glass blocks where the split units’ infrastructure connecting indoor and outdoor units (tubes, wires, and cables) and air ducts serving the nitrogen generator will be running through.

Nitrogen generator ducting requires five (5) holes/bulkheads to the outside of the building.

The first set of holes consists of 10” air duct, and two 1” air pipes. The second set of holes needs to be at least 15” away from the first set and consists of a 10” air duct and 1” air pipe (see figure 4). Ducting demolition shall be implemented at the wall sections covered with glass blocks frameless window (200mmx200mm blocks) running either at the top of L1 or L2 masonry walls (TBD). Ductwork through glass blocks will require removal and reframing rather than drilling through.

Figure 4 – Drill ducting outside the building (L2 wall).

4.2 – Concrete Platform/Pad

An outdoor rectangular reinforced flat concrete platform (slab on grade) shall be built and flushed meeting the same elevation as the elevation of step #12 (lowest elevation, at the drainage grate location in front of door D1) after concrete steps #9, #10 and #11 (lowest steps accessing Building #6) are demolished.

Figure 5 – Reinforced concrete slab / platform.

The reinforced concrete slab (concrete strength fc = 25MPa) shall be built in a rectangular prismatic shape with minimum dimensions of 1.70m (length) x 1.70m (wide) x 0,10m (height) having the concrete platform surface and the surface of step #12 aligned and flushed (concrete pad replacing steps #9, #10, and #11). The concrete platform shall be built over a layer of crushed stone base (150mm pad). The concrete platform shall be designed and signed (ART) by an accredited structural engineer (PE or CREA). The platform shall be able to withstand a load of two (2) tons (design as per Ultimate Strength Theory guidelines and The American Institute’s Building Code requirements for reinforced concrete - ACI 318-19). The concrete slab will be used as a landing area to accommodate the equipment crate outside the building before it is hauled inside room 6101. The reinforced concrete slab shall be large and strong enough to support the weight and dimension of the equipment without collapsing or overturning. While the construction methods of a slab-on-grade foundation vary depending on the area, soil, builder, and load bearing; the general process is as follows:

• Excavate and level the ground for the foundation.

• Spread a layer of gravel for drainage and a stable base.

• Install a moisture barrier, typically made of plastic sheeting, to prevent ground moisture from seeping into the slab.

• Place steel reinforcement bars (rebar) within the area to strengthen the concrete.

• Pour concrete over the prepared area, filling the entire space to create a solid, flat surface.

• Allow the slab to cure and harden, forming a robust foundation to support the home.

Contractor may want to replace the concrete slab by a different construction that is structurally sound and stable (e.g., carbon steel floor plates ASTM A36, composite floor decking, deck steel plate, steel slab, prefabricated concrete slab, etc.). Geotechnical appraisal of the soil (soil classification, physical properties, and soil conditions) may be required to design and build the concrete platform (flat slab) if the required geotechnical information is not available in the existing records. Regardless of the option selected by the awarded contractor, it shall be approved, signed, and sealed by an accredited structural engineer (PE). Soil Engineer shall verify the capacity of it before concrete is poured.

4.3 – Steel Work

The concrete slab (platform), built up in the same elevation as the elevation of step #12, is slightly lower than the elevation of the concrete slab inside Building #6. The floor elevation inside Building #6 (rooms 6101, 6102, and 6103) is about 3/4” (19mm) higher than the elevation of step #12 (drainage grate elevation) creating a small bump (obstacle) that will prevent moving (hauling) the equipment crate inside room 6101 using iron turtle platforms or manual wheel pallet trucks (see figure 7). A rectangular heavy duty steel road plate (capable to support loads up to 2,000 kg), with dimensions of 1,700mm vs. 1,700mm vs.

3/4” (19mm) shall be placed on the top of the concrete platform (covering the floor grates as well) flushed and aligned with the elevation of the pavement floor inside Building #6.

The steel plate will assist to create a smooth, leveled, and continuous surface facilitating the equipment crate hauling process over the floor steel drainage grate and concrete floor bump in front of door D1. This approach is assist preventing the iron turtle platform or pallet truck wheels from getting stuck inside the drainage grate opening spaces (space among grate bearings and cross bars) – see figure 6.

Figure 6 – Heavy duty steel road plate.

All stairs in front of Building #6 (concrete steps) must be delivered, upon completion of the project, with carbon steel handrails installed in both sides following the standards of the existing handrails installed in the US Consulate, making sure the IBC (International Building Codes) and OSHA requirements (Occupational Safety and Health Administration) are observed for the height of the handrail (864mm to 965mm), grate openings (50mm), etc.

Figure 7 – Steel handrail details.

4.4 – GWB Panels/Partitions

Wall openings and roof or ceiling gaps reported inside room 6102 shall be covered (blocked) with moisture resistant GWB panels/partitions to make sure exposed gaps, holes, openings, and loopholes are sealed and protected. The installation of GWB panels covering gaps and holes will assist anchoring the thermal-acoustic panels that will be placed over the internal walls to improve room 6102 insulation properties (thermal-acoustic treatment for walls and ceiling is discussed in further details at section 4.10).

Contractor will provide materials (plasterboard panels, runners, studs, anchors, joint tapes, brackets, screws, etc.); and appropriate working tools to build moisture resistant GWB non-loadbearing partitions inside room 6102. There are four wall sections within room 6102 that require the installation of GWB panels (see walls L1, L2, L3, and L4 in figure 9). Walls L1 (North), L2 (West), and L3 (South) are made of masonry. Wall L1 combines two types of walls. The bottom section of L1 wall is made of masonry and the top section is made of slim steel plates (see figure 8).

Wall L4, located in the East side of room 6102, is a FEBR hardline wall made of heavy duty welded steel plates and steel tubes. L4 wall separates room 6103 (generator room) from the other rooms 6101 and 6102. The slim metallic wall splitting rooms 6101 and 6102 placed on the top section of the North masonry wall (wall L1) is reported with gaps, holes, and openings. The slim metallic plates will remain in place to assist anchoring or fixing the GWB panels, steel studs, and steel runners that will be placed over it.

Figure 9 – Wall (L1) deficiencies: gaps, openings, holes, etc.

It is the contractor’s responsibility to double check and make sure the site measurements, walls, and windows deficiencies (gaps, holes, openings, etc.) are carefully identified and appraised during the site visit. It is also the contractor’s responsibility to make sure he/she understands and gets familiar with site deficiencies and constraints that might affect or interfere with the logistics and cost of the work at the job site.

Moisture resistant GWB panels in the South, East, and West sections (walls L2, L3, and L4) will be installed to cover gaps, holes, and openings reported between the ceiling (roof deck) and the internal walls only (see sections highlighted in yellow in figure 10). The internal masonry and steel walls will remain as is (no need to protect them with GWB panels).

The GWB panels proposed for room 6102 shall be built with one layer of plasterboard panel facing the attack side (external facade) and double layers of GWB panels facing the protect side (internal facade). If site conditions or site constraints do not allow the installation of GWB panels in both sides (external and internal facades) protect the internal facade only with double layers of GWB panels. GWB panels shall be delivered and installed with minimum gage of 12.5 mm thick (STM-12.5). Drywall panels (GWB) shall be installed in compliance with the manufacturer’s guidelines.

Wall openings, gaps, joints, and spaces reported on the surface of the plasterboard panels shall be treated (closed, sealed, and sanded) after the installation process is completed using specific compound material designed for drywall use only (plaster, wall putty, tape, and jointing materials). The surface should be leveled, sanded, and delivered free of burrs, bumps, wrinkles, or imperfections. The outer edges of the walls shall be protected with perforated reinforcing channels (L-shape angle beads).

Figure 10 – Drywall sections to be treated with GWB panels (walls

L1, L2, L3, and L4).

Contractor shall comply with the most stringent international construction codes for the drywall fabrication and installation process (2022 OBO Design Standards; International Building Codes – IBC; International Organization for Standardization – ISO; BOCA;

ASTM, etc.).

To prevent trapped moisture in wall cavities contractor will ensure proper installation of weather-resistive barriers, flashing, and caulking to prevent water entry.

The Brazilian Standards for Construction and Building Codes (ABNT/NBR), on drywall fabrication and installation process, will be also observe as long as the NBRs are https://www.google.com/search?rlz=1C1GCEA_en&cs=0&sca_esv=68f73f6b1576676c&q=weather-resistive+barriers&sa=X&ved=2ahUKEwiax7eiu5aNAxWoNlkFHZRHNgAQxccNegQIAxAB&mstk=AUtExfC7hxk6eNvHZmn3VFpkdBSumAa1yfnWz18MUDDxmP6tYvSRbfxHG4mQhpdZDRFudc4PU0_pGdwmqXnfkGpEO2wnvyljg4xO7MbOvY07q0FXq8gEssBrz_gYJcDVcXlysAA&csui=3 https://www.google.com/search?rlz=1C1GCEA_en&cs=0&sca_esv=68f73f6b1576676c&q=flashing&sa=X&ved=2ahUKEwiax7eiu5aNAxWoNlkFHZRHNgAQxccNegQIAxAC&mstk=AUtExfC7hxk6eNvHZmn3VFpkdBSumAa1yfnWz18MUDDxmP6tYvSRbfxHG4mQhpdZDRFudc4PU0_pGdwmqXnfkGpEO2wnvyljg4xO7MbOvY07q0FXq8gEssBrz_gYJcDVcXlysAA&csui=3 compatible to the international building codes (NBRs 15758-1 (2009) 15758-2, 15758-3, 15758-3 (2009), 14.715- (2010), 14715-2 (2010), 15217 (2010), 9575, 15884). The contractor shall indicate in the proposal the construction and/or material codes the proposal complies with.

4.5 – Electrical Work

The awarded contractor shall relocate wall mounted electrical devices running inside room 6102, especially those devices that will be interfering with or preventing the installation of the thermo-acoustic wall and ceiling panels. The relocation work of wall mounted electrical devices includes the relocation or replacement (in kind) of rigid galvanized conduits, electrical wires, junction boxes, light switches, power outlets, smoke detectors, and light fixtures (ceiling mounted).

It is the contractor´s responsibility to investigate the site conditions, prior from submitting the proposal to understand and determine if the electrical circuit serving rooms 6101 and 6102 must be repositioned, upgraded, or even replaced. The electrical circuit assessment is required to make sure the existing circuits will be able to support the additional loads from the nitrogen generator (208-240VAC, 50 or 60 Hz., 30A with and L-30R outlets) and split units (2) with 36,000 BTUS each (split units require the installation of dedicated electrical circuit and brakers).

Contractor shall coordinate the installation process of both projects carefully (thermo-acoustic and electrical upgrades) because they are tied together. The contractor shall make sure every single step of each project is considered in the proposal and covered in the estimated budget. Contractor cannot leave behind, incomplete, or miss any of the items listed in the SOW.

It is the contractor’s responsibility to anticipate and eliminate conflicts that may be raised at the job site when implementing both projects together (electrical and thermo-acoustic treatment).

Contractor shall appraise the existing electrical infrastructure and determine the devices that must be disassembled or detached from the walls and reassembled back in place after the thermo-acoustic panels are installed over the walls and ceiling in room 6102.

The electrical infrastructure shall be delivered either mounted or concealed (enveloped) over the wall thermo-acoustic panels instead of the masonry or steel walls. It is up to the contractor to re-use the existing devices (devices that are not broken, damaged, or rusty) or replace them with new devices if necessary (in kind UL listed). Thermo-acoustic panels shall not be broken, smashed, or damaged by the electrical work performed inside room 6102.

The following electrical work is covered in this SOW:

4.5.1 – Light Switches, Light Fixtures, and Conduits

Wall mounted light switches, and rigid conduits shall be displaced (detached) from the walls and placed over the thermo-acoustic wall panels after the thermo-acoustic treatment is finished.

Two existing light fixtures inside room 6102 shall be replaced. The light fixtures shall be placed below the thermo-acoustic ceiling panels line after the thermo-acoustic treatment is completed. The contractor shall consider material and labor costs for the job.

- Light Fixtures:

The contractor shall keep the existing LED luminaires in the rooms.

- Light Switches:

The contractor shall keep the existing switch that controls the light fixtures of this area.

Light switches, light fixtures, and rigid galvanized conduits broken or damaged by the Contractor shall be replaced by new ones observing the following specifications:

- Rigid Galvanized Conduits:

For more details see item 4.6.3

Figure 11 – Light switches and light fixtures.

4.5.2 – Power Outlets and Electrical Circuits

Wall mounted power outlets and rigid galvanized conduits shall be displaced (detached) from the walls and either placed over or concealed within the thermo-acoustic wall panels after the thermo-acoustic treatment is done.

Power outlets and rigid galvanized conduits broken or damaged by the Contractor shall be replaced by new ones observing the following specifications:

- Power Outlets:

New Power Outlets for new equipment - Contractor is responsible for installing a dedicated electrical box for the special equipment:

That will be specified in item 4.6.4.

Figure 12 – Power outlets / electrical circuits.

Existing Power Outlets/Circuits:

The contractor shall keep available the existing circuits in use.

Existing Spare Circuits:

Contractors must use the existing spare/spaces/circuits for the connections of these news equipment.

Contractor needs to connect the outlets power/boxes to existing circuits that will be determined by FAC personnel (Electrical Engineer).

Contractor must supply electrical products and perform the installations process observing the Brazilian guidelines and U.S. Electrical codes that includes (but is not limited to):

- ABNT – 5410:2004 - Instalações elétricas de baixa tensão

- ABNT NBR 16205 -1 - Lâmpadas LED sem dispositivo de controle incorporado de base única - Parte 2: Requisitos de desempenho

- ABNT IEC/ PAS 62612:2013 - Lâmpadas LED com dispositivo de controle incorporado para serviços de iluminação geral — Requisitos de desempenho

- ABNT NBR 5461: 1991 - Iluminação

- ABNT NBR IEC 62560:2013 - Dispositivo de controle da lâmpada

- NFPA 70 NEC - National Electrical Code

4.5.3 – Panel Boards Electrical Conduits, Condulets & Junction Boxes

Electrical panel boards (380/220V and 220/127V) and transformer existing in room 6101 will remain in place as is. Junction boxes (1 and 2) and galvanized conduits (room 6102) shall be displaced (detached) from the masonry walls and either placed over or concealed within the thermo-acoustic wall panels.

Figure 13 – Panel boards & junction boxes.

Junction boxes and rigid galvanized conduits broken or damaged by the Contractor shall be replaced by new ones observing the following specifications:

- Electrical Conduits, Condulets and junction Boxes (specifications): Conduits EMT and FMC (Electrical Metal Tubing and Flexible Metal Conduits) and Condulets

The new infrastructures (conduits and curves) required for the execution of this step, will be the Contractor´s responsibility that shall comply with:

Rigid metal conduit (RMC): A thick-walled, threaded tubing usually made of aluminum, stainless steel, or coated steel Galvanized rigid conduit (GRC): A galvanized steel tubing with a thick enough wall to be threaded.

All requested boxes must be 4”x 4” for outlets power, 4 "x 2" for lights switches and telecom, installed in compliance with the Brazilian code NBR 5410.

Condulets - Category V - Fixed outlet (heavy) conduit with thread Line DN and Line DG

- For use in standards conduits that complies with the following Brazilian codes: NBR 5597 and NBR 5598.

Figure 14 – Panel board (220V and 380V) single-line electrical diagram.

4.5.4 – Electrical Circuits (New)

New Circuit 01 - UPS connection – Power requirement, minimum, 208-240VAC, 60Hz, 30A circuit.

New Circuit 02 – Dual Inverter Split Unit 36000BTUS, maximum, 220V, 60Hz, 15A New Circuit 03 – Dual Inverter Split Unit 36000BTUS, maximum, 220V, 60Hz, 15A

New or replaced electrical wires and brakers shall comply observing the following specifications:

- Electrical Wires:

CONTRACTOR will be responsible for all the work necessary to new cabling required for the refurbishment. The minimum size of the wire gauge is 4mm², calculated according with NBR 1410, and the minimum quality accepted for the cables is:

- Conductor: Metal - Bare copper wires, soft temper, extra flexible stranding (class 5).

- Insulation - Thermofix compound in double layer of rubber HEPR (EPR / B -

High module).

- Filling - non-halogenated polyolefin compound.

- Coverage - Thermoplastic compound with non-halogenated polyolfinic base.

- Brakers:

After completion of the electrical work, the contractor shall update the existing single-line electrical diagram for Building #6 available in DWG files (Auto CAD) and all electrical as-built drawings.

4.6 – HVAC Work

Procure and install two (2) split units with 36,000 BTUs energy sources each (consider both indoor and outdoor unit sets). Each unit shall have its own dedicated electrical circuit and protection brakers connected to the existing 220V electrical panel board (see electrical guidelines provided in section 4.6).

The indoor units (evaporators) shall be installed on any of the internal walls (L1, L2, L3, and L4) - TBD. The infrastructure feeding the split units or connecting the indoor and outdoor units shall be either wall or ceiling mounted (do not conceal conduits and junction boxes inside the masonry walls). The external units (condensers) shall be wall mounted and installed outside the building (North facade) as per guidelines from sketch in figure 14.

Figure 15 – HVAC outdoor units & wall penetrations.

Procure and install an HVAC split units Lead-Lag microprocessor controller to balance HVAC wear-and-tear. The device unit shall offer a true dual-stage (2) control to balance the operating time between two redundant split units (minimum requirements: 12A rating, and 24 VAC input voltage).

Holes and penetrations through the walls or ceiling shall be covered with proper firestop insulation or sealant materials to prevent not only fire but also water and air intrusion inside the building. Fill gaps and voids penetrations with fire resistant materials (firestop, fireblocking, fire sealant, etc.) following manufacturer’s instructions.

4.7 – Steel Work

Contractor shall provide steel angles (equal flaps) to protect the corner external edge of the reinforced concrete steps #9, #10, and #11. Concrete steps #9, #10 and #11 will be rebuilt after the nitrogen generator equipment is placed inside Building #6. The equal flaps of steel angles are 1,650mm long with equal flaps 50mm (height) x 50mm (width) and 3mm (thick) painted in yellow following the same color standards applied in the job site.

Figure 16 – Steel angles with equal flaps.

4.8 – Thermo-Acoustic Treatment

Room 6102 thermo-acoustic treatment shall follow the same products and standards applied to the thermo-acoustic treatment performed at the Fire Pump room in Building #3 (room 3129). Walls and ceiling shall be treated with rigid core mineral wool sound-absorbing sandwich panels (high density) covered with glass veil, mounted with galvanized (cold formed) polished steel frames or bright silver aluminum. Panels shall be fabricated with galvanized polished expanded screen for mechanical protection (flattened expanded metal grating screen size 12mmx25mm). Mineral wool panels shall be manufactured with high thermal performance, non-combustible, non-flammable, and fire resistance properties (fire retardant) to meet local fire safety standards (see performance factors in table 3, Annex section). The sound-absorbing panels shall be fabricated and installed in rectangular shape panels, 50mm thick, anchored with hidden nails. Steel galvanized profile types with “J”, “T” and “L” shapes shall be used to anchor the thermal-acoustic panels into the walls and ceilings (vertical and horizontal channels such as studs, tracks, headers, and runners).

Use water-based adhesives to attach or fix rigid core glass mineral wool panels if necessary.

All material and work related to metalwork, carpentry, polyurethane, aluminum, acoustic insulation, thermal insulation and coating or finishing services shall be provided by the contractor. The contractor shall provide a data sheet with technical specifications of the proposed thermo-acoustic panels.

Close cell spray foam may be used instead of thermos-acoustic wall panels if cost of material and labor are better suitable.

Figure 17 – Thermo-acoustic wall and ceiling panels.

Close cell spray foam not only insulates but also serves as a vapor barrier. It has great adherence properties to metal and other substrates. Closed cell spray foam has thermal and moisture control application. It shall be processed through commercially available spray equipment designed for that purpose by a qualified professional applicator.

A professional applicator shall understand all equipment technical information thoroughly and safe operating procedures that pertain to a spray polyurethane foam application.

Respiratory protection masks are mandatory as well as adequate ventilation during the application process due to the reactive nature of the polyurethane components.

Product shall be applied in layers as per manufacturer guidelines and specification to achieve full gap coverage (NFPA 11). Foam shall be sprayed in thinner layers (2 to 3 inches), allowing each layer to set before the next coat is applied. A minimum of 3 layers of close cell foam is required for this project. A thirty (30)-minutes interval is required between each layer of application.

Close cell spray foam products shall be non-combustible, non-flammable, and carry fire resistance properties (fire retardant). The contractor shall provide data sheet with technical specifications of the selected foam products.

Figure 18 – Close cell spray foam treatment.

4.9 – Concrete Work

Replace in kind concrete steps #9, #10 and #11 (cast-in-place). All three steps shall be rebuilt after the nitrogen generator equipment is placed inside Building #6 (concrete strength fc = 25MPa). Structural concrete shall be designed as per guidelines from the

Ultimate Strength Theory in accordance with the American Concrete Institute’s Building Code requirements for reinforced concrete (ACI 318-19). Structural steel shall be designed in accordance with the latest edition of A.I.S.C. latest edition.

Figure 19 – Concrete steps #10 and #12

(rebuilt).

Use high-performance epoxy anchors ICBO approved 10mm diameter (1000kg allowable tensile working load and 830Kg allowable shear working load). Apply the same size threads and risers reported at the job site; include joint control; φ12.5 steel nose bars; φ10 steel OC (on center) EW (each way); minimum concrete cover 75mm. Epoxy grouting shall be uses in all locations where either threated rods or reinforced steel bars are being embedded into existing concrete or masonry (use steel ASTM A615M-96a or steel CA-50, grade 60, Fy = 420 MPa).

Holes for rods and bars shall not be cored drilled with a rotatory impact hammer. Size of the hole shall be as recommended by the epoxy grout manufacturer. Immediately before applying epoxy grout, holes shall be reamed with a circular wire brush attached to a drill motor and then blown out with oil-free compressed air.

Epoxy grout for downward holes may be either non-sag or liquid type, normal set.

Horizontal or overhead holes shall be a non-sag type, normal set. Liquid epoxy shall be poured slowly into the hole to avoid trapped air. Non-sag epoxy shall be injected with caulk gun with an extension nozzle fitted to reach the bottom of the hole. Holes shall be filled approximately half full of epoxy.

- Illustrative Sketch -

Bar or rod shall be slowly inserted and turned into a minimum of one rotation. Do not pull up and down on dowel when installing. Remove any epoxy grout around hole before it has set. Mix resin and hardener per manufacturer’s specification. The concrete steps details shall be provided in CAD drawings for the COR or CO review and approval before the installation process starts.

Where new concrete meets existing concrete provide reinforcing dowels drilled and epoxy grout to the existing concrete with Hilti HY-150 epoxy grout. Dowel length in existing concrete shall be as indicated in table 1 and shall extend a minimum of tensile splice length in new concrete. Dowel embedment, hole size, and proof load shall be as follows:

Dowel Size

Hole Diameter

(mm)

Dowel Embedment

(mm)

Dowel Tension Proof Load (Kg) φ10 16 150 1,400 φ12.5 22 200 2,730 φ16 25 250 4,225 φ20 29 300 6,000 φ22 31 355 8,180 φ25 38 400 10,770 φ29 44 500 13,650

Table 1 – Dowel specifications.

If the new generator’s weight is in excess of the typical slab on grade capacities, the contractor shall either confirm the original construction has the capacity to carry the generator load or build a typical concrete pad to withstand the load.

4.10 – Fire Adjustments

No work is involved with the fire devices serving rooms 6101 and 6102 (pull station, fire hydrant, smoke detectors, sprinkler heads, strobe lights, sirens, and annunciator – see figure 20). Adjustments may be required to realign conduits and smoke detectors only. If that work is required, it shall be implemented by the local Maintenance team upon request.

Figure 20 – Fire alarm and combat systems.

4.11 – Painting

The paint job shall be implemented after room 6102 thermal-acoustic treatment is completed. Painting work will be performed over the new concrete steps (dark grey); steel angles (yellow); and outdoor steel handrail (black) following equal or similar standards.

4.11.1 – Surface Preparation

• Surfaces must be clean, dry, smooth, level and in good condition for the painting job. Remove oil, dust, grease, dirt, rust, loose paint and other foreign materials or contaminants to ensure proper adhesion of the coating paint. Power wash with water and soap all surfaces in the external area (outdoors).

• Surfaces covered or protected by ceramic mosaic tiles (external façades) shall be cleaned up using high pressure power wash water machine, WAP.

• All nails or screws shall be removed from wall surfaces (masonry and drywall) and holes patched with plaster, gypsum, putty or correspondent grout (PVA);

• All "superficial" wall irregularities (cracks, holes, grooves and fissures) shall be sanded and plastered with water-based plaster.

• Previously painted surfaces, if in good condition, should be cleaned (water and soap) to remove all foreign materials.

• If paint is peeling or badly weathered, clean the surface to adjust the substrate and treat it as a new surface.

• Correcting defects requires the following surface preparation process:

filling, aligning, sanding, and smoothing the surface.

• For drywall surfaces polyvinyl acetate (PVA) is a primer made specifically for this type of material. Latex paint is also a very effective primer. If the paint finishes in a light color, do not use dark primer.

• For metallic surfaces, treat all points with rust and corrosion. Clean, sand, and treat the places affected by corrosion and, afterwards, apply a coat of anticorrosive or antioxidant protection.

• All expansion joints located within the walls shall be treated and replaced with correct elastomeric filler that is recommended to the type of treated surface.

Rule of thumb: a) preparatory primers should be applied to plaster surfaces; b) sealants should be used on new plaster walls; c) putty and PVA coats should be applied on indoor areas; and c) acrylic grout should be applied to both outdoor and indoor areas

4.11.2 – Application

• Paint application shall be performed according to manufacturer's instructions.

• Use the most suitable applicators and techniques best suited for the substrate and the type of material being applied.

• All labor or workmanship must be professionally trained and qualified (evenly spread all materials and smoothly flowed without spills, runs, sags, and splashes all over the place).

• Apply a minimum of 2 coats of paint or as required to give proper cover.

• The drying period recommended between consecutive coats (3 hours) shall be fully observed.

• Should the cleaning or scraping remove any paint to bare metal, that affected metal area shall be treated and primed prior to applying the first coat of paint.

• All areas where the rust is removed shall also be properly treated and primed prior to the first coat of paint.

• Apply additional coats of paint as necessary, if the first layers of paint undercoats, stains or other conditions show through final coat of paint until paint film is of uniform finish, color, and appearance.

• Take special care to ensure that surfaces, including edges, corners, crevices, welds, and exposed fasteners, receive a dry film thickness equivalent to that of flat surfaces.

• Follow the manufacturer’s paint dilution rate recommendation as they vary from manufacturer to manufacturer (use potable water and conduct the mixture evenly).

Figure 21 – Paint work.

4.11.3 – Materials and Equipment

The contractor shall provide all the necessary materials for preparation and treatment of the painting surfaces.

• Tools.

(brushes, spatulas, painting rolls, adhesive tapes, sandpaper, tray, scaffolding, ladders, platforms, plastic canvas, cardboard rolls, exhaust fans, brushes, etc.).

• Material for the preparation and correction of surface imperfections.

(primers, solvents, sealants, putty, plaster, mortar, fillers, resins, etc.).

• PPEs.

(safety belts, harnesses, gloves, boots, masks, fire extinguishers, etc.)

• Due to safety and health requirements, all products and materials selected by the contractor require review and approval from the US Consulate.

• All metals shall be painted to match the existing colors (Preto Esmalte Alto Brilho).

It is the contractor´s responsibility to maintain, preserve, and store in lockable boxes all materials, equipment and tools used in the construction site.

The color code listed below shall be observed at the job site. Select painting finish products from a local accredited paint manufacturers (Suvinil , Sherwin Wilians, Coral, Eucatex, Lukscolor, and Quartzolit):

- Snow White color, semi-gloss acrylic latex paint (water-based), 2 coats of paint (minimum), for internal masonry walls - SWB-01158. Curing period: 1-6 hours to touch and 24 hours to fully dry.

- Dark Grey color, matte acrylic latex paint (water-based), 2 coats of paint

(minimum), for external masonry walls - SWB-01020. Curing period: 1-6 hours to touch and 24 hours to fully dry.

- White color, white-white glossy enamel paint (oil-based), 2 coats of paint

(minimum), steel door D1. Use high performance primer before coating the metallic surface with enamel paint. Curing period: 4-8 hours to touch and 24- 48 hours to fully dry.

- Black color, matte protective black enamel paint (oil-based), 2 coats of paint

(minimum), Door D1 and handrail. Use high performance primer before coating the metallic surface with enamel paint. Curing period: 4-8 hours to touch and 24-48 hours to fully dry.

- Yellow color, matte protective yellow enamel paint (oil-based), 2 coats of paint

(minimum), concrete steps steel angles. Use high performance primer before coating the metallic surface with enamel paint. Curing period: 4-8 hours to touch and 24-48 hours to fully dry.

4.11.4 – Cleaning

• Clean ups shall be implemented at the end of each workday, and the contractor shall remove all equipment, empty cans, rags, trash, rubbish, and other discarded paint materials from the site.

• All trash and construction debris shall be disposed of by the contractor off site.

• After completing painting, clean glass and pint-spattered surfaces.

• Remove spills and splashes of paint without scratching or causing damage to adjacent finished surfaces.

4.11.5 – Protection

• Protect all surfaces and assets within or adjacent to the job site such as floors, furniture, appliances, light fixtures, power outlets, light switches, steel handrails, steel doors, windows, door frames, door jambs, doorsteps, and baseboards.

• Use plastic canvas and cardboard rolls along or around the job site area where the traffic flow of pedestrians and employees is high and may be affected by spills or splashes of paint.

• There shall be no splash or excess paint on floors, walls, glass, etc., and, if so, contractor shall remove the excess of paint completely without damaging or discoloring the affected surface.

• Contractor shall guarantee all doors, windows, locks, handles, hinges, etc. are cleaned and in good working condition by the time the project is finished. Should any doors or windows present any problems as a result from the painting job, contractor should take proper action to have them working properly.

t) Upon completion of final coat, keep all foot traffic off sealed surface. Allow the final coat to cure at least twenty-four (24) hours, under good drying conditions, before allowing foot traffic on surface. Less favorable conditions will require longer drying times. Barricade coated areas until coating has dried sufficiently for foot traffic.

u) All equipment, tools, and machinery used for handling and executing work shall be in good working condition and capable of applying required coating weights evenly to provide a smooth uniform coat surface.

4.12 – Disposal of Construction Debris and Site Cleaning

Contractor shall develop a regular cleaning and maintenance program adopting good hygienic practices to keep proper sanitation at the job site, facilities, and lay-down yard.

Work areas and means of access shall be maintained safe and order. Contractor shall maintain a good and regular housekeeping program on the job site that provides for prompt removal and disposal of construction debris. Construction tools and equipment shall be kept clean and dry as often as required for safe operation. Spills of flammable and combustible liquids shall be cleaned up immediately. Waste material and rubbish shall be placed in appropriated dumpsters labeled with a description of the contents. Only non-combustible dumpsters shall be used to dispose of waste and rubbish (EM 385-1-1, Chapter 14.D and 14.F).

The contractor will remove from the job site and transport to a licensed landfill all construction waste and debris resulted or removed from the refurbishment project.

The construction site must be daily delivered clean and free of dust, dirt, or debris.

4.13 – Warranty

A two (2) year written dua warranty signed by the Contractor and material’s manufacturer shall be handled by the time of substantial completion.

4.14 – Architectural and Record Drawings

The contractor is responsible for developing and submitting all drawings involved with this project (if applicable). The drawings shall be submitted for the review and approval of the USG before implementing any work at the construction site or acquiring any material. Drawings shall be submitted on a scale and forwarded electronically in executable DWG and PDF formats. After completion, Contractor shall submit the record drawings indicating all the final modifications, alterations or upgrades implemented during construction. Drawings shall be delivered following the drawing specifications and standards adopted by the USG (legend, lines, layers, color, scale, abbreviations, title box, etc.).

As-built drawings are certified documents signed by a registered professional (PE or PLA) that accurately represent the constructed condition of the project, including identifying any substantial deviations from the permitted design (materials, measurements, and so on).

Contractor shall submit the As-built drawings by the time the project reaches substantial completion for the release of final payment.

4.15 – Security (RSO) & Safety Forms (POSHO)

Once the awarded Contractor is officially notified, on written, by the USCG (Procurement Section), he/she will have fifteen (15) days (maximum), counting from the contract´s awarded date, to complete and submit ‘Safety’ and ‘Security’ forms and any other document requested in this section. Contract may be cancelled or declined by the USCG if the Contractor fails to submit the required information by the due date or the information submitted is incomplete, incorrect, false, or outdated.

Contractor shall gather and submit the information, forms, and documentation concerning the construction workforce accessing the job site during construction (including the Contractor ´s own workforce, partners, suppliers, sub-Contractors, installers, manufacturers, etc.). The information is required by the Regional Security Office (RSO) and by the Post Occupational Safety and Health officer (POSHO). The forms must be filled out properly and submitted with supporting documentation.

• RSO 174 Short-Form

Contractor must fill out and submit RSO 174 short-form for all employees working at the job site including the Contractor´s own workforce (architects, engineers, drivers, construction trades, etc.); professionals hired on a temporary basis; sub-Contractors;

partners; suppliers, installers, and everyone who will be accessing the construction site for a period exceeding ten calendar days.

The RSO 174-forms, for each construction work, shall be submitted with a copy of the following documents: photo (3mmx4mm), ID or driver's license (front and back sides);

proof of residence (recent); document indicating the professional relationship between the parties such as the work record booklet or “Carteira de Trabalho” (for temporary contracts, submit a hand written letter explaining the professional relationship covers only the duration of the project); and criminal record issued by the Civil or Federal Police (recent). A copy of the criminal record can be obtained from one of the following websites:

DPF, TJSP, TRF, Polícia Civil de São Paulo. The RSO 174 short-form and the personal documentation must be scanned (PDF file) and submitted by e-mail, one file per person, with the following set of information and hierarchical order:

1) RSO 174 Shot-Form

2) Photo 3x4

3) Brazilian ID or Driver´s License (both sides)

4) Proof of Residence (phone bill, water bill, energy bill, credit card bill, etc.).

5) Official Record Check and Suitability Investigation Request (DPF, TJSP, TRF, etc.)

6) Work Record Booklet (Carteira de Trabalho)

Figure 22 (a) – RSO 174 Short-Form (page 1 of 2).

Figure 22 (b) – RSO 174 Short-Form (page 2 of 2).

Forward all the scanned information, in PDF version, one set of information per person, to TourinhoLF@state.gov to the attention of Engineer Luiz Tourinho (phone 3250-5031).

Websites to check background and criminal records:

• DPF: http://www.pf.gov.br/servicos-pf/antecedentes-criminais4)

• TJSP: https://esaj.tjsp.jus.br/sco/abrirCadastro.do

• TRF: http://web.trf3.jus.br/certidao/Certidao/Solicitar

• Polícia Civil: http://www.ssp.sp.gov.br/servicos/atestado.aspx

Contractor shall wait investigation process to be cleared by the RSO before starting any construction at the job site. The investigation process last about 30 days (in average).

Construction activities at the job site and procurement of construction materials cannot start before the investigation process is cleared.

• A/POSHO Forms: AHA-Form, Safety Inspection Plan, and Accident Safety Plan.

The contractor shall complete and submit the Activity Hazards Analysis form (AHA) for A/POSHO’s review and approval before construction starts. The Accident Prevention Plan (similar to PGR, Programa de Gerênciamento de Risco) is a written document and must be developed and submitted by the Contractor in the due date. All safety documents must be submitted before the project´s starting date. The Activity Hazards Analysis form (AHA) will cover all construction activities expected for the job site and identify safety hazards related to each construction activity performed by the Contractor (welding, excavation, scaffolding, painting, concreting, plastering, nailing, hoisting, trenching, plumbing, roofing, landscaping, loading, unloading, packing, waterproofing, sanding, wiring, etc.).

Contractor must submit copies of all required safety training certificates in accordance with the governing legislation on “Normas Regulamentadoras – NRs”. Contractor must submit the Material Safety Data Sheet – MSDS (FISPQ in Portuguese) of all chemicals to be used during the project. The contractor must provide all personal protective equipment in perfect condition, as well barriers, insulation, scaffolds, ladders, and any other equipment needed for safety procedures.

Contractor shall comply either with US Army Corps of Engineers (ACOE) Safety and Health Requirements Manual (EM 385-1-1) or local Brazilian safety requirements selecting whichever code is most stringent.

The safety form shall be forwarded to the POSHO Assistant, Mr. Jayme Kirschner (A/POSHO), e-mail KirschnerJL@state.gov, telephone (011) 3250-5389. Questions related to the safety forms and inquiries related to safety matters within the working environment will be addressed during the site visit by Mr. Kirschner (A/POSHO).

A/POSHO is responsible for receiving, appraising, and approving the safety forms filled out and submitted by the Contractor.

mailto:TourinhoLF@state.gov https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pf.gov.br%2Fservicos-pf%2Fantecedentes-criminais4)o&data=04%7C01%7C%7C9f35377f52fb427ed33508d9d76c7cb7%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637777683238546876%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=1hfPYixbDlWv6TBgOIP4a522%2BUjyWGq5x4LEUqqlOGk%3D&reserved=0…