Attachment_002_-_SOW.pdf

SAN JUAN NATIONAL HISTORIC SITE

OLD SAN JUAN, PUERTO RICO

Rehabilitate San Antonio Guardhouse

PMIS 257466

FEBRUARY 2023

NATIONAL PARK SERVICE

SOUTHEAST REGION

SOUTH MAJOR ACQUISITION BUYING OFFICE

PMIS 257466 - Rehabilitate San Antonio Guardhouse

TABLE OF CONTENTS

TABLE OF CONTENTS 2

BACKGROUND 3

OBJECTIVES 3

PLACE OF PERFORMANCE 3

PERIOD OF PERFORMANCE 3

TASKS 4

PERFORMANCE REQUIREMENTS 5

CONTRACTOR RESPONSIBILITIES 7

DELIVERABLES 7

GOVERNMENT FURNISHED PROPERTY 8

SAFETY 8

CULTURAL RESOURCES 9

SECURITY CONSIDERATIONS 9

TRAVEL 9

SPECIAL MATERIAL REQUIREMENTS 10

OTHER UNIQUE REQUIREMENTS & CONSIDERATIONS 10

QUALITY ASSURANCE REQUIREMENT 11

PERSONNEL 11

FACILITY PERFORMANCE 11

DELIVERY, STORAGE AND HANDLING 11

TECHNICAL REQUIREMENTS 12

ATTACHMENTS 12

BACKGROUND

San Juan National Historic Site is one of the over 400 parks of the National Park Service. It includes Castillo San Felipe del Morro, Castillo San Cristóbal, most of the city walls, the San Juan Gate and Fort San Juan de la Cruz just across the entrance to the bay. The parks mission is to protect, preserve, and interpret the natural, cultural, and historical resources for the benefit and inspiration of present and future generations. There are over 1.5 million visitors annually.

OBJECTIVES

Project consists of replacing the existing Danosa roofing system with thermoplastic-polyolefin (TPO) roofing at The San Antonio Guardhouse, located in front of the Castillo del Morro.

The existing roof is showing signs of cracking and deterioration that could damage the underlying structure. The park needs to replace the existing deteriorated 750 square feet of roof sealing material.

Project includes removing and replacing (1) one front door, and optionally removing and replacing (6) six louver shutters that will be replaced in-kind using African Mahogany COR approved equivalent and hardware with Aluminum Bronze alloy or COR approved equivalent.

PLACE OF PERFORMANCE

San Juan National Historic Site, NPS 501 Calle Norzagaray, San Juan, Puerto Rico, 00901

San Antonio Guardhouse location: (18.47045°N, 66.12241°W).

The El Morro Road’s entrance is down the road from Castillo El Morro and is within San Juan National Historic Site. There are no parking facilities at El Morro, but the contractor may park in front of Castillo El Morro only before 9:30am. After 9:30am, all contractor vehicles must be moved. The Contractor may park two (2) vehicles at the Polvorin.

Additional vehicles must be parked off site. A non-NPS affiliated commercial parking garage is located at Ballajá Parking Garage about 0.4 miles away.

El Morro - Road’s entrance (18.46831o N, 66.12117o W).

Workdays and hours: 6:30am to 3:00 pm Monday through Friday, excluding federal holidays.

Access to jobsite and electrical panels will be gained through the Contracting Officer Representative (COR) and/or park maintenance staff.

PERIOD OF PERFORMANCE

The work in this SOW shall be completed per the following schedule:

Construction:

Construction shall not begin until the Contracting Officer has issued the Notice to Proceed.

Construction shall be completed no later than 365 calendar days after Notice to Proceed.

TASKS

The Contractor shall deliver the following services and provide an itemized cost breakdown to include materials/equipment, labor, administrative, and other fees. The Contractor shall have an on-site superintendent/foreman present at all times.

As-Constructed Drawings:

As-Constructed Drawings completed no later than 30 calendar days after Substantial Completion.

All DB Design Development, Construction Documents and As-Constructed Drawings shall be submitted to the NPS Project Manager.

Required Services. All construction at minimum shall be per local authority requirements and regulations.

Payment under each line item shall be full compensation for the following:

1. labor

2. materials

3. equipment

4. tools

5. testing

6. subcontracts and services

7. mobilization & demobilization

8. traffic control

9. preparatory work and operations

10. site facilities necessary for the work on the project

11. construction management and inspections

12. movement of personnel, equipment, supplies, materials, disposal of materials, and incidentals to the project site

13. project closeout, punch lists, final cleanup

14. repairing all affected areas including concrete and grass of disturbed areas to its original condition and appearance

15. all costs related to fees, permits, licenses, insurance, bonds, taxes and all other costs that the contractor is to obtain and/or pay to perform the work.

16. all other work necessary for the completion of the project

The contractor shall provide all labor, tools, equipment, materials and supervision required to:

Line Item #1 – Danosa Demolition Removing and disposing 750 square feet of existing deteriorated roofing system. Includes removing sheet roofing system and board insulation, minimum 4,000 psi power washing roof surface, removing objects, pitch pockets, hooks, cables and all loose material.

Line Item #2 - TPO Installation

Includes repairing roof cracks (mechanical repair) and apply crack sealer over all visible cracks using TPO manufacturer recommended product. Includes installing 750 square feet of Extruded-Polystyrene Board Insulation, and Thermoplastic Polyolefin Roofing.

Line Item #3 - Remove and replace front entrance door

The work involves (1) one fabricated replacement door offsite and taking door to the project site and replace door with a new one of African Mahogany properly fit to existing opening. The existing door will remain onsite until the replacement door has been delivered to the project site. Payment shall include all operations in connection with the disconnection of the existing doors removal from the fort, transportation, and if necessary, the contractor shall properly dispose these structures offsite. Payment shall be full compensation for wood material and assembly; fittings; hardware; spare hardware and parts; patching; coatings; protection of existing historic structure and/or fabric, provision of record drawings (as-built), testing, and all other appurtenances. All metal hardware shall be C9540 Aluminum Bronze grade alloy and epoxy coated matte black.

The epoxy coating shall be Lead Free and also shall protect the Aluminum Bronze alloy from the effects of ultraviolet rays, chemicals, oils, alkalis, food acids, water immersion, abrasion, and high-pressure wash-downs.

Additive Line Item #4 - Remove and replace louver shutters

The work involves (6) six fabricated replacement louver shutters offsite and taking each shutter to the project site and replace shutter with a new one African Mahogany properly fit to each opening. The existing shutters will remain onsite until the replacement shutters have been delivered to the project site. Payment shall include all operations in connection with the disconnection of the existing shutters removal from the fort, transportation, and if necessary, the contractor shall properly dispose these structures offsite. Payment shall be full compensation for wood material and assembly; fittings; hardware; spare hardware and parts; patching; coatings; protection of existing historic structure and/or fabric, provision of record drawings (as-built), testing, and all other appurtenances.

PERFORMANCE REQUIREMENTS

Work includes all finish Carpentry required for the selected door, and louver shutters at the San Antonio Guardhouse in general, includes the following items:

Wood

1. Doors and louver shutters will be replaced with historically accurate replicas. Wood and other materials used will be consistent with the colonial style of the historic site, to prevent an impact to the historic integrity of the building.

2. The doors and shutters will be constructed and replace in-kind; except, for the type of wood and material.

3. The new doors and shutters will be constructed to follow the same pattern as existing.

4. All wood shall be solid pieces of FSC certified African Mahogany or COR approved equivalent. The contractor shall not be allowed to provide laminated wood, faux wood, and/or joints, which are not historically accurate.

5. The door and shutters shall be of FSC certified African Mahogany or COR approved equivalent and finished to have a smooth finish.

6. The wood shall be aged and/or dried to reduce shrinkage.

7. Shall be water resistant with protection against mildew and UV damage.

8. Clean, sand and remove dust from surface to be finished.

9. Apply as needed coats of smooth, even coat and/or layer of sanding sealer, wood stain, Lacquer or as needed finish coats to achieve the very smooth finish.

10. All wood will be coated with minimum two coats of Benjamin Moore Arborcoat Exterior waterproofer clear water-resistant sealer or COR equivalent. Coating installed per manufacturer requirements with a minimum of 2-3 mil profile application and will be park approved before application.

11. Vendor will provide own samples that will need to meet requirement for exterior use.

12. Staining of the doors and shutters will be approved by Contracting Officer, before any work begins.

13. The finish will have uniform color depth and appearance in all lighting conditions.

14. The surface finish will be free of surface defects, irregularities and any physical damage.

15. All finish carpentry to be sanded smooth, and all blemishes filled so that no graining, knots show any holes.

16. Door and shutters shall be constructed and installed to provide best weather tight to keep rain out.

Masonry

1. The doors and shutters will be installed in a way that will require the removal minimal masonry fabric or plaster.

2. The contractor shall fill holes, cracks, gaps with compatible patching material; finish patch to match surrounding surface shape, texture and color.

3. Once the door and/or shutters have been installed with new frames, it will require masonry patching to close the openings between the frames and masonry walls and shall result in a smooth finish repairing all affected areas to their original condition, color, and appearance.

4. The materials that will be allowed will be compatible to the masonry structure fabric and integrity.

5. The patching materials will be compatible to the masonry structure fabric and integrity.

6. Contractor will coordinate with NPS maintenance staff for doing lime plaster repair work.

Hardware

1. Historical hardware will be replaced in-kind; except, the metal material will be a different type. Provide custom castings to match the existing design.

2. Manufacturer’s stock castings may be considered, provided deviations are minor and do not change design concept as per COR approval.

3. All metal hardware shall be Aluminum Bronze grade alloy and have an epoxy coated matte black. The epoxy coating shall be Lead Free and shall protect the C9540 Aluminum Bronze grade alloy from the effects of ultraviolet rays, chemicals, oils, alkalis, food acids, water immersion, abrasion, and high-pressure wash-downs.

4. All exposed metal hardware shall be coated lead free with Sherwin-Williams Macropoxy 646 matte black coating or COR approved equivalent.

5. All metal hardware resembling 18th Century locks, hinges, and door jambs shall be replaced and consistent to the similar design currently being used.

6. Provide anchorage devices and fasteners where needed to secure decorative metal to in-place construction.

7. All hardware shall be of similar design to match existing historic appearance currently being used and will be verified before acceptance.

8. The contractor shall install shutters and door hardware (i.e. lock, sliding bolts, door handles, all accessories) that matches the appearance of the existing hardware.

9. All the materials shall be furnished by the contractor.

10. No clean up residue will be left on adjacent finished surfaces, trim plates, fixtures or grilles.

11. The Contractor shall replace existing Pad Locks and Key Cores specific to NPS SAJU

Door Locks and Hardware.

CONTRACTOR RESPONSIBILITIES

Detailed requirements and specifications:

A. The contractor shall provide traffic control (i.e. cones, flagman, signs, etc.) sufficient to prevent injury to personnel, damage to property, and allow for safe flow of traffic.

B. The contractor shall ensure that all areas contiguous to the work site remain undisturbed or are returned to original condition and operation as soon as practical.

C. The contractor shall not begin construction until all the materials are available and on site and proceed continuously until the work is completed.

D. The contractor shall conduct a facility survey to take measurements and templates as needed to fabricate the door, and shutters. Contractor shall provide a written report of findings during the site assessment.

E. The contractor shall field verify all measurements. Measurements given in this SOW are for planning purposes only. The Contractor shall be responsible of providing drawings with exact measurements of roofing, door, and shutters requiring replacement.

F. The Contractor shall coordinate the entire project work including scheduling of materials and notifying park staff 24 hours before deliveries.

G. Wherever dissimilar metals may come in contact with each other in exterior conditions, they must be separated with an approved layer of bituminous coating, neoprene pads or other rubber based product. In areas exposed to exterior conditions, galvanized metal or zinc plated fasteners shall not be used to anchor aluminum or copper; use stainless steel, aluminum or copper fasteners or a corrosion resistant alternative approved by the COR.

H. Installed systems shall be resistant from wind loads from hurricanes.

I. New equipment shall be placed in the same location as existing equipment.

DELIVERABLES

A. An acceptable Schedule of Values shall be agreed upon by the Contractor and

Contracting Officer before the first progress payment is processed.

B. Before notice to proceed

a. Provide product submittals for all equipment to be installed for approval by COR.

b. Provide Unit dimensions and weight.

c. Product Data: Equipment list, system description, and manufacturer’s data sheets on each product to be used, including:

i. Preparation instructions and recommendations.

ii. Storage and handling requirements and recommendations.

iii. Installation methods.

iv. Samples for Initial Selection Purposes: Submit manufacturer’s standard size samples of colors and finishes.

C. Shop Drawings: Submit shop drawings showing layout, profiles, and product components, including anchorage, edge conditions, and accessories.

a. Operation, installation, and maintenance manuals.

D. Provide a written narrative summary of how the contractor will execute the project with a timeline. This document will be referred to as the implementation plan.

E. Before contract close out

a. Provide one hard-bound copy of Operation and Maintenance (O&M) Manuals to the park for all equipment installed. O&M manuals are to include the manufacturer’s specifications and instructions for all new equipment.

b. Provide one hard-bound copy of all warranty information for new equipment.

Must include list of all model and serial numbers as applicable.

c. Conduct at minimum one hour of training on maintenance recommendations, procedures, and new equipment and systems for park personnel.

d. Provide Maintenance Materials - Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

GOVERNMENT FURNISHED PROPERTY

N/A

SAFETY

• When working special attention should be given to good hygiene practices, proper use of personal protective equipment.

• Physical hazards include slips, trips, and falls due to slippery and sloping surfaces;

limited access and egress; corroded ladder rungs; and obstructions by piping and other structures. There is also the risk of receiving punctures and cuts from sharp edges.

Location hazards

• The location of this work may expose the contractor’s personnel to high-heat and humidity. This contractor is to follow at a minimum all OHSA rules and procedures.

• While working in high areas scaffolding might be needed, contractor personnel must comply with fall protection equipment.

Safety Plan

• A required safety plan must be submitted and approved before any work is to begin. This plan shall identify any hazards related to the work and provide measures to follow to mitigate risk.

• The Contractor shall immediately report to the COR all accidents resulting in employee injury or death or damage to property while performing this contract.

• The Park safety officer has the authority to issue restraint or cease-and-desist orders to the Contractor when violations or unsafe acts are present and threaten Government and Contractor employees or damage to Government property.

CULTURAL RESOURCES

An archeological monitor may be present at the work site. If archeological resources are damaged at the project site while the archeological monitor is present or absent, all work directly affecting the discovery must stop immediately, and the damage must be reported to the CO. Contractor shall move on to work on other portions of the scope that do not directly affect the archaeological discovery with the approval of the COR.

SECURITY CONSIDERATIONS

The following mitigation measures shall be implemented to minimize the impacts of construction activities with:

No door or shutter will be allowed to remain open overnight at any time. Area of work will be closed off to the public for safety. Entrance will be closed at the end of each calendar day.

Construction sites will be limited to the smallest feasible area. Ground disturbance and site management will be carefully controlled to prevent undue damage to vegetation, soils, and archeological resources and to minimize air, water, soil, and noise pollution.

Staging is limited in or near the construction area. Construction equipment and material storage shall be located in previously disturbed areas near the construction site. All staging areas shall be returned to pre-construction conditions once construction is complete.

Site Access - Contractor properly identified employees will be the only ones allowed on site and shall follow federal code of conduct during work hours.

Construction zones shall be fenced with approved construction barrier fencing, plastic or portable fencing, before any construction activity. The fencing shall define the construction zone and confine activity to the minimum area required for construction. Workers will be instructed to avoid conducting activities beyond the construction zone as defined by the construction zone fencing.

Parking of vehicles shall be limited to existing roads, in legally designated areas, and within approved staging area(s). Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas outside the work limits, repairing or replacing damaged trees and plants, at no additional expense to the National Park Service.

Site Disturbance - Minimize the construction limits of the project to reduce the project’s impact on the site.

TRAVEL

Contractor shall be responsible for all travel related expenses for this project, including mobilization of equipment, tools, materials, manpower, lodging, meals, and per diem.

SPECIAL MATERIAL REQUIREMENTS

N/A

OTHER UNIQUE REQUIREMENTS & CONSIDERATIONS

The contractor shall take any necessary precautions to protect and preserve all-natural resources, cultural resources and all historic fabric, materials and structures that are in the park.

The Contractor is strongly encouraged to minimize waste by recycling or salvaging as much non-hazardous demolition waste as possible.

Hauling Restrictions - Follow all legal load restrictions in the hauling of materials. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent.

Weather Protection - When inclement weather is expected, provide temporary protection, for areas where roofing, siding, windows, doors or other enclosing elements have been removed or have not been installed. Inspect protective coverings frequently to ensure that they are functioning properly.

Cleaning - Before scheduling the final inspection, remove all tools, equipment, surplus materials, and rubbish. Restore or refinish surfaces that are damaged due to work of this contract to original condition. Remove grease, dirt, stains, foreign materials, and labels from finished surfaces.

Thoroughly clean building interiors. Pick up and remove all construction debris from the site. At time of final inspection, project shall be thoroughly clean and ready for use.

After NPS review is completed, incorporate comments, and submit 3 final sets of operation and maintenance data to the Contracting Officer.

Substantial Completion and Final Inspection - Submit written certification to the CO that the project, or designated portion of project, is substantially complete, and request a final inspection.

Upon receipt of written request that project is substantially complete, the Contracting Officer will proceed with inspection within 10 business days of receipt of request or will advise the Contractor of items that prevent the project from being designated as substantially complete.

When work is determined to be substantially complete, a list of deficiencies ("Punch List") to be corrected before final acceptance might be prepared. The Contracting Officer will issue a Letter of Substantial Completion. If work is not determined to be substantially complete, the Contracting Officer will notify the contractor in writing. After completing work, the contractor shall resubmit certification and request a new final inspection. If the Contractor fails to complete the work within an established time frame, the Contracting Officer may either replace or correct the work with an appropriate reduction in the contract price or charge for re-inspection costs per the Inspection of Construction clause of the contract.

Acceptance of the work - After all deficiencies have been corrected, the Contracting Officer will issue a Letter of Final Acceptance.

QUALITY ASSURANCE REQUIREMENT

The contractor shall develop and maintain a quality program to ensure services are performed per commonly accepted commercial practices. The contractor shall develop and implement procedures to identify, prevent, and ensure non-recurrence of defective services. At a minimum the contractor shall develop quality control procedures addressing the critical areas identified in this statement of work. The government will periodically evaluate the contractor’s performance per the statement of work. All new equipment must conform to the manufacturer’s instructions and guidelines for installation and start-up.

While performing work, the contractor shall follow the latest applicable versions of the following:

Federal, state and local codes, standards and policies for Environmental Protection Authority requirements.

Occupational Safety and Health Administration (OSHA) requirements.

Shall meet Secretary of Interior Standards for Historic Preservation and be in compliance with Section 106 National Historic Preservation Act (NHPA)

NPS Reference Manual 10A and 10B

The quality of all work shall be the responsibility of the Contractor. Testing, if required, shall be the responsibility of an independent testing laboratory. Inspect and test all work as needed to ensure that the quality of materials, workmanship, construction, finish, and functional performance is in compliance with applicable specifications and drawings.

All affected areas must be restored to their original condition from before the work began. Any damages will be fixed and repaired at no cost to the government. Any damage to floor, or walls will be the contractor’s responsibility to repair to match existing materials.

PERSONNEL

Contracting Officer: TBD

Contracting Officer Representative (COR): TBD

Park Facility Manager: TBD

FACILITY PERFORMANCE

All work performed shall follow applicable laws, regulations, and NPS policies and guidelines, http://www.nps.gov/dscw/laws-policies.htm.

All work shall be installed per the manufacturer’s recommendations. When Contract Documents require compliance with manufacturer’s printed instructions, provide one complete set of instructions to Contracting Officer and keep another complete set of instructions at the project site until substantial completion.

DELIVERY, STORAGE AND HANDLING

If units are shipped via commercial freight, open crates and inspect each slab in the presence of the driver. Note any and all damage, and do not accept shipment if damage is present. Claims due to shipping damage must be submitted to the freight carrier.

Handle, transport and store units to prevent damage to materials or structure. Handle with care to prevent damage to corners and edges.

Delivery.

Provide the following to CO or their representative for approval.

TECHNICAL REQUIREMENTS

Division 7 – Thermal and Moisture Protection

SECTION 072100 - THERMAL INSULATION

SECTION 075423 - THERMOPLASTIC-POLYOLEFIN (TPO) ROOFING

SECTION 076500 - FLEXIBLE FLASHING

ATTACHMENTS

Attachment A – Pictures Attachment B – Guardhouse at San Antonio Bastion DWG March 7, 1983