A04_SOW_Reroof_Shipwright_Office__and_Comfort_Station.docx

Replace Shipwright Office & Comfort Stations Roofs, San Francisco Maritime NHP Scope of Work

Replace Comfort Station & Shipwright Office Roofs San Francisco Maritime National Historical Park, California

Table of Contents General Information General Requirements Submittals Accident Prevention Quality Control Work Specifications Inspection/Acceptance Contracting Officers Authority Images/Drawing

General Information

1.1 Description: The work specified herein includes replacing the Shipwright Office, and Hyde Street Pier Comfort Station roof systems, repairing leaks around the comfort stations skylights, and other repairs identified in the Work Specification section. The buildings are located at 2905 Hyde Street, San Francisco, California. The Hyde Street Pier is part of the San Francisco Maritime National Historical Park (SAFR), which is a unit of the National Park Service.

A. Roof Structure Information:

i. Shipwright Office: approximately 1400 sq. ft. of plywood sheathing covered with sealed cap sheeting roofing material. One awning and a small addition have approximately 500 sq. ft. of cedar shingles.

ii. Hyde Street Comfort Station: approximately 900 sq. ft. of tongue and groove pine covered with paper and asphalt shingles with four skylights.

B. Roofing Material Specifications:

i. Composite Shingles: Shingles will be architectural, of a color that resembles seasoned cedar shingles, a minimum 25 years warranty, and a wind resistance rating of F (110 MPH). The color must be approved by the contracting officer before installation.

ii. Underlayment: Synthetic, of a grade that matches the warranty of the shingles.

iii. Water Barrier, of a grade that can protect against wind driven rain for the lifetime of the roof

iv. Cedar shingles: Number 1 Blue Label C. Permit: Prior to starting work the Contractor performing the work must secure a permit from the San Francisco Port Authority.

1.2 Location: Hyde Street Pier is located at 2905 Hyde Street, San Francisco, California, 94109. Under normal conditions Hyde Street Pier is open to the public seven days a week from 9:30 AM to 5:00 PM

1.3 Contractors Use of Premises:

A. Inspections and work performed by contractor shall be during the hours of 7:00 AM - 5:00 PM Monday through Friday excluding Federal holidays. Following the notice to proceed, the contractor shall communicate with the Contracting Officer Representative (COR) to schedule any site visits necessary to proceed with work.

B. Contractor shall always conduct operations to ensure the least inconvenience to the public, staff. No closures of sidewalks or parking spaces will be permitted without the specific approval of the Contracting Officer.

C. Work site shall be kept clean and free of debris and secure at the end of each workday

1.4 Field Verification:

A. It is highly recommended the contractor verify building dimensions, condition, and location prior to submitting estimates, and work schedules.

1.5 Construction Materials:

A. All materials shall be Contractor furnished from outside the park.

B. Temporary storage of materials at the worksite will be allowed but must be kept designated area and stored in an orderly fashion. The Government will not be held responsible for any lost, damaged, or stolen equipment.

C. The Contractor shall remove and dispose any debris from the worksite daily.

D. The Contractor will ensure that any materials brought to the worksite are used in accordance with manufacturer’s instructions.

General Requirements:

2.1 The Contractor performing the work must possess a valid California C-39 Roofing Contracts License.

2.2 Data and information furnished or referred to herein is for the Contractor’s information. The Government shall not be responsible for any interpretation of or conclusion drawn from the data or information by the Contractor.

2.3 The contractor shall hold and save the Government, it’s officers and agents, free and harmless from liability of any nature occasioned by the Contractor’s performance.

2.4 The Contractor shall immediately notify the Contracting Officer of any ambiguities, inconsistencies and errors discovered in this specification or between contracting documents and existing conditions.

2.5 Work shall not begin, nor will timelines be set prior to the preconstruction conference.

2.6 Preconstruction Conference:

A. Before start of construction, Contracting Officer will arrange an on-site meeting with Contractor and Contracting Officers Representative. All required forms for submittals and project execution will be provided at this meeting. The meeting agenda will include the following as a minimum:

i. Correspondence procedures

ii. Designation of responsible personnel

iii. Labor standards provisions

iv. Payroll reports

v. Changes

vi. Payments to Contractor

vii. Subcontractors

viii. National Park Service regulations

ix. Accident prevention program (including name of responsible supervisor)

x. Accident reporting

xi. Documents required under the contract

xii. Park rules and regulations

xiii. Safety program (compliance with the "Accident Prevention" section of this document)

xiv. Tentative construction schedule

xv. Submittal of shop drawings, project data, samples, and approved equals

xvi. Project closeout requirements

2.7 Progress Meetings:

A. The Contracting Officer and COR will work with Contractor to schedule meetings as necessary on a regular timeline with the Contractor and Subcontractors.

B. Subcontractors will not be allowed to work until they have attended a meeting.

C. Additional meetings will be held as needed or for new Subcontractors.

D. The meeting agenda will include the following as a minimum:

i. Approval of minutes of previous meetings

ii. Review of work progress

iii. Field observations, problems, and decisions

iv. Identification of problems which impede planned progress

v. Review of submittals schedule and status of submittals

vi. Review of off-site fabrication and delivery schedules

vii. Status of project record drawings (monthly)

viii. Status of operation and maintenance data manuals (monthly)

ix. Maintenance of progress schedule

x. Corrective measures to regain projected schedules

xi. Planned progress during succeeding work period

xii. Coordination of projected progress

xiii. Maintenance of quality and work standards

xiv. Effect of proposed changes on progress schedule and coordination

xv. Other business relating to work Submittals:

3.1 Description:

A. The work of this section consists of submittal requirements before and during construction.

B. From CM-16 will be used for all transmittals.

3.2 Submittal and Approval Procedures:

A. As specified in the individual sections, the following shall be provided to the National Park Service Contracting Officer and Contracting Officer’s Representative prior to receiving a Notice to Proceed but no later than four weeks after contract award.

i. Work Plan: A step by step plan for the work outlined in the “Work Specification” section of this document.

ii. Samples: Samples of asphalt shingles, wood shingles, and any other material that will alter the appearance of the buildings being worked on.

iii. Accident Prevention Plan. This plan will address the health and safety of Contractors workers, NPS staff and the public concerning the work on site. The Contractor must ensure that the procedures, methods and materials used in this project are compliant with OSHA standards and best practices for employee and site safety. This plan must include site specific mitigations, such as containing debris from the roofs, and safety signage in order to keep staff and visitors safe during and after project hours.

B. Contracting Officer reserves the right to require submittals in addition to those called in individual sections.

C. Approved Equals:

i. For each item proposed as an “approved equal,” submit supporting data including:

1. Technical Data sheets on all preparation and painting products.

2. Comparison of the characteristics of the proposed item with that specified.

ii. A request for approval constitutes a representation that the Contractor:

1. Has investigated the proposed item and determined that it is equal or superior in all respects to the specified product it is replacing.

2. Will provide the same warranties for the proposed item as for the item specified.

3. Has determined that the proposed item is compatible with interfacing items.

4. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

5. Waives all claims for additional expenses that may be incurred as a result of the substitution.

D. Coordinate all submittals and review them for legibility, accuracy, completeness, and compliance with contract requirements. Forward submittals that are related to or affect one another as a package to facilitate coordinated review. Each transmittal shall contain only data specific to that individual submittal.

3.3 Submittal Identification:

A. Identification shall include the park name-package number, project title, contract number, and transmittal number.

B. Identification information on samples shall be applied to the most readily visible area on the sample or on tags attached to sample.

3.4 Submittal Numbering:

A. Number each submittal consecutively.

B. For re-submittals use the original submittal number, plus a letter suffix beginning with A.

C. Additional re-submittals of the same item shall contain the original number with the next consecutive letter.

3.5 Contracting Officer’s Review:

A. Submittals will be returned disapproved without technical review if identification information is missing, not filled in, or if placed on the back of the submittal; an incorrect number or format of submittals is provided; the transmittal form is incorrectly filled out; submittals are not coordinated; or submittals do not show evidence of Contractor’s approval. Form will be provided at preconstruction meeting.

B. Any work done or orders for materials or services placed before approval shall be at the Contractor’s own risk.

C. After reviewing submittal, the Contracting Officer will return one copy of form DSC-1 (CS) and one copy of applicable (marked up) submittal sheets to the Contractor. Shop drawing review notations will be returned on the reproducible original shop drawing. All other submitted items will be retained. The Contractor is responsible for producing additional copies for his/her own use.

D. The returned submittal will be marked in one of three ways as defined below:

i. APPROVED: Acceptable with no corrections.

ii. APPROVED WITH NOTATIONS: Minor corrections or clarifications required. All comments are clear, and no further review is required. The Contractor shall address all review comments when proceeding with the work.

iii. DISAPPROVED - RESUBMIT: Rejected as not in accordance with the contract or as requiring major corrections or clarifications. The Contracting Officer will identify the reasons for disapproval. The Contractor shall revise and resubmit with changes clearly identified.

Accident Prevention

4.1 Description:

A. The work of this section consists of establishing an effective accident prevention plan and providing a safe environment for all personnel and visitors.

4.2 Submittals:

A. Accident Prevention Plan: Before the preconstruction conference, submit for acceptance an accident prevention plan. The Contracting Officer’s Representative, and SAFR’s Occupational Health and Safety Specialist will review the proposed program for compliance with OSHA and project requirements. If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days. No progress payments will be made until the program is approved. The program shall include:

i. Name of responsible supervisor to carry out the plan.

ii. Weekly and monthly safety meetings.

iii. First aid procedures.

iv. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to ensure property protection and safety of the public, National Park Service personnel, and Contractor's employees. Identify the work included under each phase.

v. Include possible environmental hazards and mitigations with each phase of work performed.

vi. Applicable training, both initial and continuing.

vii. Planning for possible emergency situations, such as floods, fires, slides, power outages, and wind and rainstorms. Such planning shall take into consideration the nature of the project, site conditions, and degree of exposure. Consult COR if needed.

viii. Plan must include protocols to follow Federal, State and local guidelines and orders as is relates to the Covid-19 pandemic. At a minimum, the plan should contain measures on proper sanitation and hygiene, social distancing protocol, and actions taken to protect employees, vulnerable populations and the community at large as it pertains specifically to the contracted scope of work.

B. Certificates: Provide certificates from a mechanic that all mechanical equipment to be used (if applicable) has been inspected and meets OSHA requirements.

C. Submit a report of safety meetings and safety inspections.

D. Upon request, submit proof of employees' qualifications to perform assigned duties in a safe manner.

4.3 Quality Assurance:

A. In case of conflicts between Federal, state, and local safety and health requirements, the most stringent shall apply. Equipment or tools not meeting OSHA requirements will not be allowed on the project site. Failure to comply with the requirements of this section and related sections may result in suspension of work.

B. Qualifications of Employees:

i. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

ii. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

iii. Operators of vehicles, mobile equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating and setting up such equipment. Provide operating instructions for all equipment. Newly hired operators shall be individually tested by an experienced operator or supervisor to determine if they are capable of safely operating equipment.

4.4 Accident Reporting:

A. Reportable Accidents: A reportable accident is defined as death, occupational disease, traumatic injury to employees or the public, property damage and fires. Notify Contracting Officer’s Representative immediately in the event of a reportable accident. Within 7 days of a reportable accident, fill out and forward to Contracting Officer an Accident/Property Damage Report (Form CM-22). Form may be obtained from the Contracting Officer and COR.

B. In the event of an emergency DIAL 9-1-1. The Contractor shall contact US Park Police Emergency dispatch immediately (1-415-561-5656) and the Contracting Officer and COR as soon as possible. Outside of an emergency, any hazardous or unsafe conditions shall be reported to the COR as soon as possible. All hazardous or unsafe conditions shall be red tagged immediately to ensure a safe environment for all staff and visitors. A follow up report to the Contracting Officer shall be made within 24 hours.

4.5 First Aid Facilities:

A. Provide adequate facilities for the number of employees and the type of construction at the site.

4.6 Emergency Instructions:

A. Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

4.7 Egress:

A. Provide and maintain adequate egress at all times in accordance with the Life Safety Code (NFPA 101). No corridor, aisle, stairway, door, or exit shall be obstructed or used in a manner that interferes with egress. Main sidewalks must not be blocked off to the public.

4.8 Protective Equipment:

A. Inspect personal protective equipment daily and maintain in a serviceable condition. Clean, sanitize, and repair, as appropriate, personal items before issuing them to another individual.

B. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

4.9 Safety Meetings:

A. A monthly Safety Meeting must be scheduled with the project COR. These meetings shall be used to review the effectiveness of the Contractor's safety effort, to resolve current health and safety problems, to provide a forum for planning safe construction activities, and for updating the accident prevention program.

4.10 Training:

A. First Aid: Provide adequate training to ensure prompt and efficient first aid.

B. Hazardous Material: Train and instruct each employee exposed to hazardous material in safe and approved methods of handling and storage. Hazardous materials are defined as explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful substances that could cause death or injury. In this case the potential hazard is lead based paint.

C. Fall Protection: Train and instruct each employee in the proper deployment and use of fall protection.

Quality Control

5.1 General: The quality of all work shall be the responsibility of the Contractor. Inspect and test all work often enough to ensure that the quality of materials, workmanship, construction, finish, and functional performance complies with applicable specifications and drawings.

5.2 Quality Control Staff: The Contractor's job supervisory staff may be used for quality control, supplemented as necessary by additional technicians. The Contractor's designated Quality Control Supervisor shall be employed full time at the project site whenever contract work is in progress.

5.3 On-Site Control:

A. Preparatory: Perform before beginning each feature of work.

i. Review control submittal requirements with personnel directly responsible for the quality control work.

ii. Ensure that provisions have been made for field control testing.

iii. Examine the work area to ensure that all preliminary work has been completed.

iv. Verify all field dimensions and advise the Contracting Officer of discrepancies.

v. Ensure that necessary equipment and materials are at the project site and that they comply with approved products and submittals.

B. Initial: As soon as work begins, inspect and test a representative portion of a particular feature of work for quality of workmanship. Review control testing procedures to ensure compliance with contract requirements.

C. Follow-Up: Inspect and test as work progresses to ensure compliance with contract requirements until completion of work.

5.4 Documentation:

A. Maintain Daily Quality Control log of quality control activities and tests on Contractors QC daily report and submit weekly to COR. Form will be supplied at pre-construction meeting.

5.5 Enforcement:

A. The Contractor shall stop work on any item or feature pending satisfactory correction of any deficiency noted by the quality control staff or the Contracting Officer. Construction shall not proceed on any feature of work containing uncorrected work.

Work Specifications:

6.1 Summary: The scope of work includes: Securing a permit from the San Francisco Port Authority. Remove the existing roofing material, degraded flashing, and replacing it on two building. The total square footage is around 2,800 square feet of roof. Additional exterior repairs as detailed in each tasks sequence, outlined in EXECUTION.

6.2 Submittals

A. Manufacturer’s Data: Submit to COR, Technical Data Sheets for all products to be used. An “approved equal” will be reviewed. See “Roofing Products” below for a list of products that need to me submitted to the COR.

B. Submit all information using guidelines specified in Section 3.0

6.3 Quality Assurance

A. Qualifications of Roofers: Use only qualified journeyman roofers for the installation of all roofing material; in the acceptance or rejection of installed roofing, no allowance will be made for the lack of skill on the part of the Roofers. The Contractor performing the work will possess a valid C-39 Roofing Contractors license from the State of California.

B. Project inspection: Demolition, flashing repairs, and installation of roofing material shall be inspected (and approved) by the COR prior to the next phase of the work commencing. The Contractor is responsible for scheduling all San Francisco Port Authority permit inspections. SAFR COR and Port Authority inspections can be scheduled to occur at the same time.

C. Comply with applicable regulations of the San Francisco Port Authorities Building Codes, OSHA, 28 CFR 1926-1993, and EPA and State of California regulations regarding Volatile Organic Compounds (VOC).

D. Manufactures installation instructions must be followed.

6.4 Project Conditions

A. The location in this contract is subject to extreme fog and wind conditions for much of the year. The Contractor shall schedule the work such that it occurs only when conditions at the individual project sites satisfy the requirements listed in the technical data sheets of the products submitted for use.

B. Do not allow fire hazards to occur on the project sites; remove from the area daily all oily rags, waste, and other combustibles not in covered metal containers.

PRODUCTS

6.5 Roofing Products

A. Composite shingles: Architectural of a color that resembles seasoned cedar shingles, has a minimum 25-years warranty, and a wind resistance rating of F (110 MPH). The color must be approved by the Contracting Officers Representative before installation.

B. Cap Sheet Roof: Replace with in kind material C. Cedar Shingles: Number 1, Blue Label D. Underlayment:

i. For Composite Shingle Roofs: Synthetic, of a grade that us computable with the shingles and has a minimum 25-year warranty.

ii. Cap Sheet: Replace with in kind material

iii. For Shingle Roofs: Cedar Breather E. Water Barrier, of a grade that can protect against wind driven rain for the lifetime of the roof F. Flashing: of a quality that will last for the life time of the roof G. Parapet Coping: replace in kind H. Final acceptance of shingle types and colors will be from samples supplied to COR.

I. Product Coordination: Provide products which are compatible with each other.

6.6 Products Use and Material Quality:

A. Shingles, underlayment, water barrier, flashing, will be installed following manufacturer’s installation instructions.

B. Provide the best quality grade of the various types of roofing materials as regularly manufactured by approved materials manufacturers. Materials not displaying the manufacturer’s identification as a standard, best-grade product will not be accepted.

EXECUTION

6.7 Site Preparation for all buildings.

A. The pier will remain open to the public during construction activities. The Contractor must minimize their impact on employee and visitor access to the buildings and the pier in general.

B. Fence or barricade the immediate work area to protect the public and existing facilities from roofing operations, and to prevent unauthorized entry.

C. Fences and barriers shall be structurally adequate and neat in appearance.

D. Cover the immediate work area on the Pier with a drop cloth or other suitable means to prevent construction debris from entering the Bay and surrounding areas.

E. Completely remove barriers no longer needed when approved by Contracting Officer.

6.8 Hyde Street Pier Comfort Station: Approximately 900 sqft at a 3/12 pitch.

A. Demolition:

i. Remove all existing roof shingles, roof paper, and scrape clean all related fasteners.

ii. Remove rusted parapet coping

iii. Remove flashing and weatherstripping around skylights

iv. Remove from Hyde Street Pier and dispose of all roof materials according to all applicable local, state, and federal laws.

B. Inspection:

i. Identify the source and cause of leaks around the skylights.

ii. Visually inspect tongue and groove sheathing for excessive weathering, rot, or any other indicator that signals a repair is needed.

iii. Immediately notify Contracting Officers Representative of needed repairs.

C. Repairs:

i. As needed replace sheathing, flashing, and other identified deficiencies that will lead to leaks or a premature roof system failure.

ii. Replace parapet coping.

iii. Replace flashing around skylights, and weatherstripping between skylight frame and plexiglass.

iv. Complete any additional repairs identified during the inspection and authorized by the Contracting Officer.

D. Replace Roof:

i. Install water barrier, underlayment, and shingles per manufactures instructions. Shingles will be installed with a 5-inch offset, joints and cutouts will only align every 8th course.

6.9 Shipwright Office: Approximately 1,400 sqft of low-slope cap sheet roofing & 500 sqft of wooden shingles @ a 5/12 pitch.

A. Demolition:

i. Remove all existing cap sheet material, wood shingles, and underlayment.

B. Inspection:

ii. Visually inspect sheathing for excessive weathering, rot, or any other indicator that signals a repair is needed.

i. Immediately notify Contracting Officers Representative of needed repairs C. Repairs:

i. As needed replace sheathing, flashing, coping that has rusted through, and other identified deficiencies that will lead to leaks or a premature roof system failure.

ii. Decorative copula: replace missing vents, remove replace rotten wood, and paint to match existing color.

iii. Complete any additional repairs identified during the inspection and authorized by the contracting officer.

D. Replace Roof:

i. Replace cap sheet roof with in-kind material.

ii. Shingles: use cedar breather underlayment, no. 1 blue label shingles, match existing reveal. Nailing will comply with industry standards.

Project Closeout

7.1 Description:

A. The work of this section consists of final cleanup, closeout submittals, and final inspection procedures.

7.2 Completion Report. This report must include:

A. Product information including warranty’s, care instructions, TDS’s for all the product used.

B. Contact information for the Contractor and all Subcontractors.

7.3 Cleaning:

A. Before scheduling the final inspection, remove all tools, equipment, surplus materials, and pick up all construction debris from the site. At time of final inspection, project shall be thoroughly clean and ready for use.

7.4 Substantial Completion and Final Inspection

A. When project, or designated portion of project, is substantially complete, request in writing a final inspection. Upon receipt of written request that project is substantially complete, the Contracting Officers Representative will proceed with inspection within 10 days of receipt of request or will advise the Contractor of items that prevent the project from being designated as substantially complete.

B. If, following final inspection, the work is determined to be substantially incomplete, Contracting Officer’s Representative will prepare a list of deficiencies to be corrected before final acceptance and issue a Letter of Substantial Completion. Contractor shall complete the work described on the list of deficiencies within 30 calendar days, as weather permits Contracting Officers Authority

8.1 The Contracting Officer is the only person with the authority to act as an agent of the Government under this contract. Only the contracting officer has authority to:

A. Direct or negotiate any changes in the Statement of Work or specifications B. Modify or extend the period of performance C. Change the delivery schedule D. Change any terms and conditions of this contract

Images/DrawingsFigure 1 HSP Comfort Station

Figure 2 HSP Comfort Station Roof

Figure 3 Shipwright office / Fee Booth Figure 4 HSP Comfort Station Parapet Coping

Figure 5 Shipwright office cap sheet roof Figure 6 Shipwright Office Shingle Roof and Coupla image3.jpeg image4.jpeg image5.jpeg image6.jpeg image7.jpeg image1.png image2.jpeg