Specifications_0001.pdf

GOLDEN GATE NATIONAL RECREATION AREA

CAPEHART ROOFING PROJECT

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

CAPEHART HOUSING ROOF REPLACEMENT

GOLDEN GATE NATIONAL RECREATION AREA,

CALIFORNIA

TABLE OF CONTENTS

SECTION 01110 SUMMARY OF WORK

SECTION 01310 PROJECT MEETINGS

SECTION 01330 SUBMITTALS

SECTION 01360 ACCIDENT PREVENTION

SECTION 01430 CONTRACTOR QUALITY CONTROL

SECTION 01600 MATERIAL AND EQUIPMENT

SECTION 01770

PROJECT CLOSEOUT

SECTION

07570 COATED FOAM ROOFING

SECTION 09900

PAINTING AND COATINGS

SECTION 01110 – SUMMARY OF WORK

PART 1 GENERAL

1 .1 DESCRIPTION

A. Capehart Housing is located within the Marin Headlands and is part of California’s

Golden Gate National Recreation Area (GGNRA), north of San Francisco. It is in the Marin Headlands and adjacent to Fort Cronkhite a former WW2 Military post. The Capehart housing complex serves as transitional and permanent housing for National Park Service employees. Nine units in the Capehart housing complex, approximately 32,000 square feet of roof needs replacement. Units 800, 801, 805, 807, 808, 811, 815, 818, and 833 are to be replaced.

B. The work of this contract consists of providing all the materials, labor and equipment to replace the roof at Capehart Housing.

C. Existing Paint at Capehart housing has tested positive for containing lead in the past, however some surfaces like paint over roof flashing has tested negative. Wet patch compound around pipe penetrations at Capehart has tested positive for asbestos-containing material.

Tar and felt paper has tested negative in roofing assembly. All work of the contractor shall be performed to safety guidelines promulgated by the Environmental Protection Agency, Occupational Health and Safety Administration and Cal-OSHA.

D. The contractor will set up containment around the building and perform hazardous material testing. Contractor is responsible removal of existing tar and gravel roofing;

removal and disposal of not in use Dish and Direct TV branded satellite dishes, coordination of removal and reinstallation of white Clear dish brand satellite dish with COR, and replacement of any damaged wood decking. Contractor is responsible for removal and reinstallation of underlayment damaged from a tree fall at building 815.

Contractor is responsible with coordinating Satellite dish removal, reinstallation and disposal with COR. Contractor is responsible for replacement of roof flashing, including drip edge, pipe vent collars, and downspout; sweeping of existing roof;

installation of new spray polyurethane foam roof system 30lbs per 100sf; installation of silicon cap sheet coating at 3 gallons per 100 sf with 400lbs per 100sf embedded pea gravel; installation of new galvanized aluminum downspouts. Contractor must match new roofing and components with existing roof, and match new components with adjacent structures roof.

E. Contractor is responsible for removing debris from the Attic space and using a shop vac or other appropriate removal system to mitigate dust accumulation in the attic space. Contractor is not responsible for dust or debris intrusion into the interior space beneath enclosed attic so long as any trap door or open space is adequately tarped or sealed off with tape during demolition

F. Contractor will be responsible for complete removal of all debris pertaining to the project. Disposal of wastes by the contractor shall be done according to all County/State Regulations at a County/State permitted disposal site. Contractor shall keep projects neat, orderly, and in a safe condition at all times. Contractor shall store and use all equipment, tools, and materials in a manner that does not present a hazard.

G. CONTRACTOR IS RESPONSIBLE FOR FIELD-VERIFYING ALL

MEASUREMENTS AND QUANTITIES

1.2 LOCATION

A. All work will be performed within Golden Gate National Recreation Area. Work will occur within Marin County in California.

1.3 CONTRACTOR’S USE OF PREMISES

A. Construction Camp: Establishment of a camp within the park will not be permitted.

B. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public, staff and occupants, no closures will be permitted without specific approval of Contracting Officer.

C. Confine storage of materials to areas approved by the Contracting Officer’s Representative.

D. Preservation of Natural and Cultural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

E. Provide temporary barriers to protect existing trees and plants and root zones.

F. Do not remove, injure, or destroy trees or other plants without prior approval.

Consult with Contracting Officer and remove agreed-on roots and branches that interfere with construction.

G. Do not fasten ropes, cables, or guys to existing trees.

H. Hauling Restrictions:

Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent.

A special permit will not relieve Contractor of liability for damage that may result from moving of equipment.

1 .4 SPECIAL CONSTRUCTION REQUIREMENTS

A. The Contractor shall perform all work between the hours of 7:00 AM to 5:00 PM

Monday thru Friday. Any variation of this work schedule must be requested in writing and approved in advance by the Contracting Officer.

B. Holiday Work Restrictions: No on-site work shall be performed on weekends or Federal holidays unless approved by the Contracting Officer.

1 .5 FIELD VERIFICATION

A. Field verify all existing dimensions affecting the work of this contract before ordering products. Contractor is responsible for all field verifications.

1.6 GOVERNMENT-PROVIDED MATERIALS

A. The Government will furnish both water and electricity where currently available within the park.

B. All other materials shall be Contractor-furnished from outside the park.

C. SOILS INVESTIGATION REPORT: NOT USED.

PART 2 PRODUCTS: NOT USED

PART 3 EXECUTION

3.1 List of Contract Line Items

A. Contract Line Item Number 1: Hazardous Materials Testing and Abatement

1. Contractor is to perform lead base paint or asbestos testing for any surfaces suspected of containing these hazardous materials if no testing results exist.

Laboratory results of lead paint and ACM testing shall be provided prior start of construction and available upon request. There is a line item for this service on the attached bid sheet. Current scope of work excludes abatement and disposal. All work involving disturbance, removal, storage, disposal or encapsulation of lead paint, and re-glazing of windows performed as part of this contract, is to conform to applicable federal, state and local laws, including current OSHA and EPA standards.

2. Contractor is to Submit a copy of test reports, testing specifically lead based paint hazards and asbestos-containing material in the form of roofing. No work will be started until a written lead and asbestos mitigation plan of action has been approved by the Contracting Officer. Document preparation and cleaning procedures in strict accordance with federal, state and local laws, including current OSHA and EPA standards.

3. Removal, storage, disposal or encapsulation of lead paint, and removal and disposal of roofing containing asbestos based materials performed as part of this contract, is to conform to applicable federal, State and local laws, including current OSHA and EPA standards.

B. Contract Line Item Number 2: Install New Drip Edge and Flashing

1. The contractor will replace roof flashing, including drip edge to match existing flashing and drip edge.

C. Contract Line Item Number 3: Install new T&G board roofing at building 815a

1. The contractor will remove damaged board roofing at Building 815 and replace with new underlayment to match existing

D. Contract Line Item Number 4: Install New Roof

1. Contractor is to install:

a. new Carlisle Roof Foam Spray Polyurethane Foam or approved equal with the following characteristics:

- Dense foam to 1” thickness

- Minimum R rating of 6.0

Or

b. Johns-Manville Corporation Specification No. 4GNG or approved equal

2. Roof system - Replace all standard sheet metal pipe flashings and two-piece .025 vent flashing sets. Install new dropout drains to match existing. Install new silicon cap sheet to a minimum thickness of 30 mils and pea gravel

E. Contract Line Item Number 5: Install new 3" galvanized aluminum downspouts, primed and painted.

1. The contractor will install new 3” primed and painted galvanized aluminum downspouts to match existing.

F. Contract Line Item Number 6: Mobilization/Demobilization

1. This item includes mobilizing and demobilizing all required equipment to the site. For Schedule of Value purposes the Contractor cannot exceed 60% of this CLIN to Mobilization. This CLIN does not include payment for materials. The Contracting Officer may require the Contractor to furnish cost data to justify this portion of the bid.

Measurement for payment shall be by lump sum.

2. Payment will be at the contract lump sum price. Progress payments will be based on percentage of the work item that is completed, or as outlined in the approved Schedule of Values

G. Option Contract Line Item Number 7: Paint Existing Fascia and Soffit

1. This item includes option to paint fascia and soffit. The contractor is to test for hazardous materials in paint prior to commencement of work and if positive perform hazardous materials abatement prior to paint application.

2. Contractor is to apply primer and two coats of latex paint.

END OF SECTION

SECTION 01310

PROJECT MEETINGS

1 .1 PRE-CONSTRUCTION CONFERENCE

A. Before start of construction, Contracting Officer will arrange a Microsoft Teams meeting or phone conference meeting with Contractor. The meeting agenda will include the following as a minimum:

1. Correspondence procedures

2. Designation of responsible personnel

3. Labor standards provisions

4. Payroll reports

5. Changes

6. Payments to Contractor

7. Subcontractors

8. National Park Service regulations

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

10. Accident reporting

11. Documents required under the contract

12. Park rules and regulations

13. Recycling Program

14. Saturday, Sunday, holiday and night work

15. Safety program (compliance with the "Accident Prevention" clause of the General

Provisions)

16. Cultural Survey and Natural Resource Compliance requirements for off-site, non-commercial borrow pits (compliance with "Cultural Resources Survey" clause of the General Provisions.

17. Tentative construction schedule

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

19. Project closeout requirements

20. Relationship of Division 1 to other divisions

1 .2 PROGRESS MEETINGS

A. The Contracting Officer will schedule weekly meetings 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:

1. Approval of minutes of previous meetings

2. Review of work progress

3. Field observations, problems, and decisions

4. Identification of problems which impede planned progress

5. Review of submittals schedule and status of submittals

6. Review of off-site fabrication and delivery schedules

7. Status of project record drawings (monthly)

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

9. Maintenance of progress schedule

10. Corrective measures to regain projected schedules

11. Planned progress during succeeding work period

12. Coordination of projected progress

13. Maintenance of quality and work standards

14. Effect of proposed changes on progress schedule and coordination

15. Other business relating to work

PART 2 PRODUCTS: NOT USED.

PART 3 MEASUREMENT AND PAYMENT

3 .1 PROJECT MEETINGS

A. Payment will be included in the bid item to which this work relates.

SUBMITTALS

1.1 DESCRIPTION

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

1.2 RELATED REQUIREMENTS

A. Project closeout - Section 01770.

1.3 SUBMITTAL AND APPROVAL PROCEDURES

A. All submittals shall be transmitted using National Park Service form CM-16. A copy of the form is included at the end of this section.) No action will be taken on a submittal item unless accompanied by the transmittal form.

B. As specified in Section 075700 – Coated Foam Roofing, forward submittals to Contracting Officer’s Representative at least 5 days before need for approval. Unless a different number is specified, submit one reproducible original and two copies of each shop drawing, three copies of manufacturer’s catalog sheets (cut sheets), three specimens of each sample, and three copies of all other submittals requested.

1. Surface Preparation Plan: for work related operations on buildings containing lead paint and asbestos–containing material in joint and paint compounds includes containment and disposal.

2. Manufacturers’ Catalog Sheets: Submit only pertinent pages: mark each copy of standard printed data to identify specific products proposed for use.

3. Manufacturer’s Application Instructions: When contract documents require compliance with manufacturer’s printed instructions, provide one complete set of instructions for Contracting Officer and keep another complete set of instructions at the project site until substantial completion.

4. Submit manufacturer’s warranty information.

5. Submit completed daily job reports provided by NPS detailing work accomplished each day, trades present, and the weather.

6. Roofing formulas and vendor information for each color used will also be given to NPS for future reference.

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

D. Approved Equals:

1. For each item proposed as an “approved equal,” submit supporting data demonstrating the product meeting the salient characteristics including:

a. Drawings and samples as appropriate.

SECTION 01330 - SUBMITTALS

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

c. Changes required in other elements of the work because of the substitution.

d. Name, address, and telephone number of vendor.

e. Manufacturer’s literature regarding application of paints and coatings.

2. A request for approval constitutes a representation that Contractor:

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

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

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

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

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

3. Construction Materials: The Contractor is encouraged to submit for approval products made out of recycled or environmentally responsible material. Every effort will be made by the National Park Service to approve these materials.

E. 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.

F. Submittal Identification:

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

2. All sets of shop drawings, manufacturer’s catalog sheets, samples, and other documents submitted to the Contracting Officer must have the identification information stamped on the submittal.

3. Identification information shall be applied to the bottom right margin on each page.

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

G. Submittal Numbering:

1. Number each submittal consecutively.

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

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

H. Contracting Officer's Representative’s Review:

1. 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.

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

3. After reviewing submittal. the Contracting Officer’s Representative will return one copy of form CM-16 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.

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

a. APPROVED: Acceptable with no corrections.

b. 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.

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

SECTION 01360

ACCIDENT PREVENTION

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

1 .2 SUBMITTALS

A. Accident Prevention Program: Before on-site work begins, submit for approval an accident prevention program. The Park Safety Officer will review the proposed program for compliance with OSHA and project requirements. If the program requires any revisions or corrections, the Contractor shall resubmit the program within 10 days. No progress payments will be made until the program is approved. The program shall include:

1. Name of responsible supervisor to carry out the program.

2. Weekly and monthly safety meetings.

3. First aid procedures.

4. 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 by reference to specification section or division numbers. Specifically identify the methods of protecting workers and visitors from exposure to lead paint hazard and asbestos-containing material.

5. Training, both initial and continuing.

6. Planning for possible emergency situations, such as floods, fires, cave-ins, slides, explosions, power outages, and wind storms. Such planning shall take into consideration the nature of construction, site conditions, and degree of exposure of persons and property.

B. Certificates: Provide certificates from a mechanic that all mechanical equipment has been inspected and meets OSHA requirements.

C. Submit a copy of test reports, as required by OSHA, for personnel working with hazardous materials, specifically lead based paint hazards and asbestos-containing material in the form of window glazing.

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

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

1 .3 QUALITY ASSURANCE

A. Clauses entitled "Accident Prevention" and "Permits and Responsibilities" of the contract. 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 sites. Failure to comply with the requirements of this section and related sections may result in suspension of work.

B. Qualifications of Employees:

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

2. 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.

3. Operators of vehicles, mobile equipment, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating 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.

1 .4 ACCIDENT REPORTING

A. Reportable Accidents: A reportable accident is defined as death, occupational disease, traumatic injury to employees or the public, property damage by accident in excess of $100, and fires.

Notify Contracting Officer 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.

B. All Other Accidents: The Contractor shall report all other accidents to the Contracting Officer as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

PART 2 PRODUCTS

2 .1 FIRST AID FACILITIES

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

2 .2 PERSONNEL PROTECTIVE EQUIPMENT

A. Meet requirements of NIOSH and MSHA.

3 .1 EMERGENCY INSTRUCTIONS

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

3 .2 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.

3 .3 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.

3 .4 SAFETY MEETINGS

A. As a minimum, conduct weekly "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite.

B. Conduct monthly safety meetings for all levels of supervision. Notify the Contracting Officer of meeting dates and times. 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. The Contracting Officer will attend the meeting and enter the results of the meetings into the daily log.

3 .5 HARD HATS AND PROTECTIVE EQUIPMENT AREAS

A. A hard hat area will be designated by the Contracting Officer. The hard hat area shall be posted by the Contractor in a manner satisfactory to the Contracting Officer.

B. If wearing a hardhat is required, it is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary protective equipment at all times during the visit. As a minimum, provide six hard hats for use by visitors. Change liners before reissuing hats.

3 .6 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 particular case the potential hazard is lead based paint.

3.7 HAZARDOUS MATERIAL PRECAUTIONS

A. Surface preparation done to some exterior surfaces of park buildings may disturb paint containing lead in the areas surrounding the bent metal flashing and roof and asbestos-containing material (ACM) in the wet patch compound. If done incorrectly, surface preparation may release lead and asbestos into the environment, and adversely affect the health of contractors, park employees and park visitors.

It will be the responsibility of the contractor to perform lead base paint or asbestos testing for any surfaces suspected of containing these hazardous materials if no testing results exist. Laboratory results of lead paint and ACM testing to date will be available at the pre-bid meeting, or available upon request. There is a line item for this service and abatement on the attached bid sheet.

All work involving disturbance, removal, storage, disposal or encapsulation of lead paint, and abatement of wet patch compound of the performed as part of this contract, is to conform to applicable federal, state and local laws, including current OSHA and EPA standards.

B. No work will be started until a written lead and asbestos mitigation plan of action has been approved by the Contracting Officer. Document preparation and cleaning procedures in strict accordance with federal, state and local laws, including current OSHA and EPA standards.

C. Because of the possibility of releasing and dispersing hazardous material debris and dust during this corrective work, non-essential NPS Employees and Park Visitors should not be permitted in the vicinity of the work during the repair activities.

1. The Contractor shall be required to fence or otherwise cordon off the immediate work area to prevent access or, if possible,

2. identify an alternate entrance to the occupied buildings for NPS staff to use during the normal workday.

D. Many park buildings are occupied and in use on a daily basis. Although access to these buildings will be limited, NPS Staff are expected to require entry during the period of the exterior corrective work.

1. To allow normal day-to-day operations and the contract work to go on, only partial shut-down the entry to these buildings will be permitted.

2. A schedule will be submitted and approved by the Contracting Officer prior to any work being performed during the normal working day.

3. Work activities that require more than one day’s work for completion shall be so scheduled that each day’s work (including cleanup) can be accomplished within the time frame of a normal working day (8:00 AM to 5:00 PM).

E. Area Protection: Cover all areas immediately adjacent to and below the work with a 6- mil polyethylene film to protect the ground and to retain the wet debris and dust that will be created during the surface treatment.

1. This covering should extend out horizontally from the base of the wall surface being treated.

2. Although a 6-mil film is reasonably tough, avoid unnecessary traffic over this surface to reduce the chance of puncture.

3. In addition, if the ground surface is rough, an additional layer of polyethylene may be required.

4. Joints and tears shall be repaired immediately with duct tape.

K. Removal of Protective Coverings: At the conclusion of the corrective work or at the end of the day on multi-day activities and when the work area cannot be secured from access, the protective coverings should be carefully removed.

1. retain any remaining debris/dust for proper handling/disposal.

L. Disposal of Waste and Debris: All retained liquid waste shall be poured through a filter cloth to remove paint chips and other debris prior to disposal.

1. The Contractor must make provision for the safe storage of waste onsite for proper disposal.

2. Waste storage area must be rated as abatement areas and access restricted.

3. Large quantities of solid waste should be stored in a covered dumpster secured behind a security fence. These dumpsters and storage containers must have appropriate hazard labels.

4. Lead-based paint should be collected and bagged in 6-mil or double 4-mil plastic bags and stored in a designated secure storage area.

5. After collection of this debris, the Contractor will be responsible for properly storing and the disposal of the lead based paint material according to applicable Federal and State regulations.

PART 4 MEASUREMENT AND PAYMENT

4 .1 ACCIDENT PREVENTION

SECTION 01430

CONTRACTOR QUALITY CONTROL

A. The work of this section consists of preparing and executing a quality control program during performance of this painting contract.

B. Inspections and installation of the roofing system shall be conducted during the business hours of 7:00 AM to 5:00 PM Monday through Friday, excluding Federal Holidays. No loud noises before 8:00 AM because it’s a residential area. Contractor may arrive at 7:00 AM but cannot start swinging a hammer until 8:00 AM. No weekend work allowed unless a 48-hour notice is given and approved by the CO. Requests should only be made for emergencies or weather delays. Following the notice to proceed from the Contracting Officer (CO), the contractor shall communicate with the COR to schedule any site visit necessary and provide a project work schedule.

1 .2 SUBMITTALS

A. Quality Control Plan: At the time of the preconstruction conference, submit for approval a written Contractor Quality Control (CQC) plan. If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days. The Government reserves the right to require changes in the plan during the contract period as necessary to obtain the quality specified. No change in the approved plan may be made without written concurrence by the Contracting Officer. The plan shall include:

1. A list of personnel responsible for quality control and assigned duties. Include each person's qualifications.

2. A copy of a letter of direction to the Contractor's quality control supervisor outlining assigned duties.

3. Names and descriptions of laboratories to perform sampling and testing, and samples of proposed report forms.

4. Methods of monitoring and controlling environmental pollution and contamination as required by regulations and laws.

5. Methods of performing, documenting, and enforcing quality control of all work.

B. Project Schedule- submit a complete schedule outlining lead time for fabrication and installation C. Site Specific Safety Plan (SSSP) –provide a SSSP that will ensure that the procedures, methods and materials used in this removal and installation are compliant with OSHA standards and best practices for employee and site safety. This plan must include name of responsible on-site supervisor, first-aid procedures, outline of each phase of the work, and the hazards associated with each major phase, and methods proposed to ensure property protection and safety of the public.

D. Licenses and Certificates: contractor or subcontractor performing the work must provide proof of valid C-39 California Roofing License. Contractor must demonstrate a minimum of 2 years experience in historic roofing projects to match existing materials to new roofing materials.

E. Materials: provide cut sheets for all materials

F. Daily Submittals: Submit Daily Quality Control Report showing all inspections and tests on the first workday following the date covered by the report. Reference Attachment: Contractors Q.C. Daily Report.

G. Tests: Submit triplicate copies of complete hazardous materials and any test results not later than three calendar days after the test was performed. Submit failing test results and proposed remedial actions within four hours of noted deficiency. Reference Attachment: Test Report Information Sheet

H. Off Site Inspection Reports: Submit prior to shipment.

I. Completion Report: Upon project completion, a written completion report of all tasks performed, accompanied by photographs and any shop drawings produced, shall be provided to the COR J. All submittals shall be submitted and approved by the COR after the Notice to Proceed (NTP) is issued by the

Contracting Officer (CO).

K. Progress Payments: If the CQC plan and Daily Quality Control Reports are not submitted in a timely manner, the Contracting Officer may retain an appropriate amount of the applicable progress payment.

1 .3 QUALITY ASSURANCE

A. General: Except for tests or other items of work specified to be performed by the Government, 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 is in compliance with applicable specifications and drawings.

B. 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.

PART 2 PRODUCTS (NOT USED)

3 .1 OFF-SITE CONTROL

A. Items that are fabricated or assembled off-site shall be inspected for quality control at the place of fabrication.

3 .2 ON-SITE CONTROL

A. Notify the Contracting Officer at least 24 hours in advance of the initial and follow-up phases.

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

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

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

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

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

5. Ensure that necessary equipment and materials are at the project site and that they comply with approved shop drawings and submittals.

C. 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.

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

3 .3 DOCUMENTATION

A. Maintain Daily Quality Control Reports (sample attached) of quality control activities and tests.

Daily Quality Control Reports may not be substituted for other written reports required under the General Provisions, such as Disputes, Differing Site Conditions, or Changes.

3 .4 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.

4 .1 CONTRACTOR QUALITY CONTROL

SECTION 01600

MATERIAL AND EQUIPMENT

A. The work of this section consists of the general procedures for handling, storing, and protecting material and equipment.

1 .2 TRANSPORTATION AND HANDLING

A. Arrange deliveries of materials in accordance with construction schedules; coordinate to avoid conflict with work and conditions at the site. Deliver materials in undamaged condition, in manufacturer's original containers or packaging, with identifying labels intact and legible.

Contractor is encouraged to obtain materials in biodegradable or recyclable/reusable packaging which uses the minimum amount of packaging possible.

1 .3 STORAGE AND PROTECTION

A. Store materials in accordance with manufacturer's instructions, with seals and labels accessible for inspection.

B. Interior Storage: Maintain temperature and humidity within the ranges required by manufacturer's instructions.

C. Exterior Storage:

1. Store products subject to damage by the elements in weathertight enclosures.

2. Store fabricated products above the ground, on blocking or skids; prevent soiling or staining. Cover products subject to damage or deterioration with impervious sheet coverings; provide adequate ventilation to avoid condensation.

PART 2 MEASUREMENT AND PAYMENT

2 .1 MATERIAL AND EQUIPMENT

SECTION 01770

PROJECT CLOSEOUT

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

PART 2 PRODUCTS

2 .1 CLEANING MATERIALS

A. As recommended by the manufacturer of the surface to be cleaned.

3 .1 CLEANING

A. 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 all construction debris from the site. At time of final inspection, project shall be thoroughly clean and ready for use.

3 .2 CLOSEOUT SUBMITTALS

A. Submit before final inspection request.

1. Guarantees and Bonds: As specified in individual sections.

2. Spare Parts and Materials: As specified in individual sections.

3. All product submittals are provided and accepted.

3 .3 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 Officer 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 complete, Contracting

Officer 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. If the Contractor fails to complete the work within this 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 in accordance with the Inspection of Construction clause of the contract. If, following final inspection, the work is not determined to be substantially completed, Contracting Officer will notify Contractor in writing. After completing work, Contractor shall request a new final inspection. All re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction clause of the contract.

3 .4 FINAL ACCEPTANCE OF THE WORK

A. After all deficiencies have been corrected, a Letter of Final Acceptance will be issued.

4 .1 PROJECT CLOSEOUT

SECTION 07570

COATED FOAM ROOFING

PART 1: SECTION I—GENERAL

1.1 DESCRIPTION OF WORK

A. The work done under this contract includes all labor, materials and incidentals required to do a complete job of roof replacement of selected government buildings and structures located within Golden Gate National Recreation Area (GOGA). The intent of this work shall be to provide a very high quality, durable roof coating system, while preventing any removal, destruction or adverse affects to the historic substrate. Roofing system used herein means all coating systems materials, including spray polyurethane foam roof system, silicon cap sheet, pea gravel, gypsum board, self-adhesive flashing, underlayment, sealers, and other applied materials used as a primer or finish coating.

B. Surfaces to be reroofed include replacement of roof flashing, including drip edge, pipe vent collars, and downspout; installation of new spray polyurethane foam roof system 30lbs per 100sf; installation of silicon cap sheet coating at 3 gallons per 100 sf with 400lbs per 100sf embedded pea gravel; installation of new galvanized aluminum downspouts.

C. Work will include completion of NPS-provided daily job reports detailing weather and daily site activities.

1.2 LOCATION

A. All of the buildings in this project are located within Golden Gate National Recreation Area, and work may occur in Marin County.

1.3 TEMPORARY FACILITIES AND CONSTRUCTION AIDS

A. Temporary Facilities: Contractor will supply portable toilets.

B. Scaffolding:

1. Contractor to set up OSHA approved staging if necessary at elevations as outlined in a pre-determined schedule. The schedule shall be subject to the approval of the COR.

2. Scaffolding will remain in place until the accepted completion of the job or a specific portion of the job, and removed within one week of accepted completion of the work.

3. Any holes made for attaching scaffolding to buildings are to be filled and repaired in a method approved by the COR.

C. Dumpster: Contractor to coordinate the installation and removal of construction dumpster for debris. Approved location of dumpster onsite to be determined by Contractor and COR.

1.4 PROJECT MANAGEMENT

A. Documentation and Communication. Contractor shall create reports based on details uncovered during the Project work not already outlined in the specifications. Work shall be photographed by Contractor when COR is not on site. Photographs shall be at least 300 dpi. Details and suggested repair options shall be photo documented and submitted to the COR for review.

B. Weekly Meetings. Contractor, COR, and possible advisors and/or subcontractors to the Project are to meet on a weekly basis, which will include a site walkthrough and roundtable discussion of progress.

1.5 SUBSTITUTIONS

A. COR’s Approval Required:

1. The COR will consider proposals for substitution of materials, equipment, and methods only when such proposals are accompanied by full and complete technical data and all other information required.

2. Do not substitute materials, equipment or methods unless such substitution has been specifically approved in writing for this work by the COR.

B. Availability of Specified Items:

1. Verify that all specified items will be available in time for installation during orderly and timely progress of the work.

2. In the event specified item or items will not be available on a timely basis, so notify the

COR.

1.6 SUBMITTALS

A. Also See Section 01330, Submittals.

B. Submit manufacturer’s literature and data on any relevant materials.

C. Submit manufacturer’s warranty information.

D. Submit completed daily job reports provided by NPS detailing work accomplished each day, trades present, and the weather.

E. Submit digital photographs of at least 300 dpi or greater detailing each step of work.

1.7 PROTECTION

A. Provide protection for roofs, entrances, windows, walls and landscape as necessary to prevent damage during entire course of work of this Section.

B. Repair or replace to COR’s satisfaction all building elements and materials damaged by weather resulting from openings that did not sufficiently exclude weather at no additional cost.

C. Provide protective barriers to ensure the safety of visitors and site staff. Take all the safety of passersby near scaffolding and work areas. This includes setting up cones and safety tape as a barrier to block off areas as needed.

D. Take all necessary precautions to protect all persons, whether engaged in work of this Section or not, from all hazards of any kind associated with the work of this Section.

E. Take all necessary precautions to prevent fire and spread of fire.

F. Provide a properly rated 10 lb. fire extinguisher close by all workstations.

G. Provide adequate ventilation during use of volatile or noxious substances.

H. All MSDS are to be available and copies kept on-site until Project completion. All persons using materials are to be familiar with information contained within the documents and proper safety precautions are to be followed.

1.8 QUALITY ASSURANCE

A. Also See Section 01430, Contractor Quality Control.

B. General: Roofing Contractor shall be skilled and experienced in this type of roofing system and equipped to perform workmanship in accordance with industry standards, manufacturer’s specifications and all applicable building codes.

1. Use only qualified journeyman roofers for the mixing application of roof coating system on exposed surfaces.

2. In the acceptance or rejection of installed roofing system no allowance will be made for the lack of skill on the part of the roofers.

C. Materials: Obtain all paint from one manufacturer, at the same time, and from the same distributor to ensure homogeneity of manufacture and formula.

1. All materials will be used according to manufacturer’s specifications and standard industry practices.

2. Contractor shall ensure that all project materials are protected from adverse weather during construction.

1.9 PRODUCT HANDLING

A. Also See Section 01600, Material and Equipment.

B. All products shall be stored and installed in a manner which upholds the manufacturer’s warranty unless directed to do otherwise by the COR.

C. All materials will be delivered to the site in their original containers bearing manufacturer’s label and instructions.

1.10 JOB CONDITIONS

A. Pre-work Conference: Prior to the initiation of any work, meet at the project site with the Contractor, all approved subcontractors, and the COR to discuss the project. COR will record the discussions of the conference and the decisions and agreements (or disagreements) reached, and furnish a copy of the minutes to each party. Review foreseeable methods and procedures related to the painting work, including but not necessarily limited to the following:

1. Review project requirements (Specifications and other Contract Documents).

2. Review required submittals, both completed and yet to be completed.

3. Review availability of materials, tradespeople, equipment and facilities needed to make progress and avoid delays.

4. Review weather and forecasted weather conditions, and procedures for coping with unfavorable conditions, including the possibility of temporary coverings.

5. Review procedures needed for protection of the building during the remainder of the construction period.

6. Review staging strategy if required.

7. Verify all quantities, dimensions and materials in the field.

B. Weather Condition Limitations: See manufacturer’s product information.

C. Examination of Substrate: The Contractor must examine the substrate and other conditions within which the repairs are to be performed, and notify the COR of any unsatisfactory conditions. Do not proceed with any work until unsatisfactory conditions have been corrected in an acceptable manner and approved by the COR.

D. Project inspection: Surface preparation and application of the roofing substrate and polyurethane coat shall be inspected (and approved) by the Contracting Officer prior to the final cap sheet and pea gravel application.

E. Weekly Site Meetings: Meet weekly with COR to review work performed, challenges encountered or anticipated, and upcoming work. Project Manager will record the discussions of the conference and the decisions and agreements (or disagreements) reached and furnish a copy of the minutes to each party.

PART 2 SECTION II – PRODUCTS

2.1 – MATERIALS

A. Also see Section 01600, Materials and Equipment

1. Spray polyurethane foam roof system

a. Carlisle Premiseal 60 or approved Equal with the following salient characteristics:

• Sprayed-in-place, nominal 60 psi compressive strength, rigid, closed-cell spray polyurethane foam (SPF) roofing system.

• R-value of 6 per inch and a continuous insulation without thermal breaks

b. All Roof coating system shall be obtained from the same vendor at the same time.

c. Elastomeric Joint Sealant:

d. Sikaflex – 1a or approved equal with the following salient characteristics:

• Elastomeric Polyurethane joint sealant ¼ inch to ½ inch maximum thickness

e. Silicone Cap Sheet:

Carlisle Seamless SEAL Ultra HS Silicon Coating or Approved Equal with the following salient characteristics:

• Single component, fluid applied silicone coating 30 mils minimum thickness

2. BUILT UP ROOFING (ALTERNATIVE)

The built-up roofing system shall be equal to Johns-Manville Corporation Specification No. 4GNG, which has been used as a basis for this general specification. Other systems will be considered as an approved equal.

Remove existing built-up roofing, install new built-up roofing.

Install new flashing as required for performance of work, and as required to complete the work; paint to match existing surfaces.

Touch-up paint on any wood, gutters and down spouts and miscellaneous appurtenances to match existing surfaces.

• Materials: All materials shall be furnished by, or approved by, manufacturer of the roofing system.

• Sheathing Paper: As recommended by manufacturer.

• Felts Base Felt: Glasbase; Finishing Felt: GlasPly.

• Bitumen: ASTM D3 12-84, Type III. Gravel or Slag: ASTM D1863-83.

Match existing

• Cant Strip: Asphalt impregnated fiberboard, size as shown, as manufactured by Celotex Corporation, Tampa, Florida, or approved equal.

• Base Flashing:ANSI/ASTM B370, cold rolled temper, weighing a minimum of 16 oz. per square foot.

• Fasteners: Nails with annular or spiral threads, driven through tin caps if the heads are less than 1 inch in diameter, or staples power driven through tin caps.

Nails shall not penetrate eaves or overhangs leaving points exposed, use longest fastener possible without breaking through exposed overhang sheathing.

• Gravel Stops: Shall be26 gauge galvanized steel, sheet, zinc coated.

• Other Exposed Metals: ANSI/ASTMA527-80. Steel, sheet, zinc coated galvanized), lock forming quality. Zinc coating designation, ASTM A525-83, G90.

INSPECTION: Determine that deck surfaces are in suitable condition or report unsuitable surfaces to Contracting Officer.

FIRST FELT: Apply felt horizontally, starting at the low edge. Working up the slope, lap each felt 2 inches over the…