A04_SOW_Kowski_Hall_Roof_Replacement_r2_0001.pdf

5/3/2021

SCOPE OF WORK

Kowski Hall Roof Project

FY21

Project Introduction

Project Name: Replace Kowski Hall Roof

Park Name and Address:

Albright Training Center 1 Albright Ave.

Grand Canyon, AZ. 86023

1.1 Location and Facilities

This project is located at Albright Training Center in Grand Canyon, Arizona. There are seasonal services

(Gas, Food, lodging) in Tusayan and all services provided in Flagstaff, 60-65 minutes’ drive from the job site.

Short Project Description

This contract award is for the replacement of the existing PVC roof system. This includes but is not limited to the following:

• Remove & Replace existing PVC roof system approximately 18,125 square feet

• Sheeting & Carpentry repairs as needed

• Remove and Replace lightning protection per manufacturer recommendations

• Insulate roof with R20 or greater

• Provide & Install new drip edge

• Provide new low-profile snow boards at entry ways

• Provide & Install new flashing (step, counter, and cricket) where needed

• Provide and Install any utility penetration protection if appropriate

• Provide & Install 24 gage metal ridge cap (color to match new roof)

• Provide & Install new gutters, downspouts, hardware and clear associated drains.

• Provide materials disposal per state and local regulations

• Provide a warranty for materials and workmanship

1.2 NPS Points of Contact

Contractual - Contracting Officer (CO)

Deborah Cimmer 928.266.2106 Deborah_cimmer@nps.gov mailto:Deborah_cimmer@nps.gov

Contracting Officer Representative (COR)

TBD

1.3 Data and Materials to be provided by the NPS

The following data and materials are provided to the Contractor by the National Park Service (NPS) as attachments to this Scope of Work. Items available electronically are referenced throughout the document.

• Utilities

1.4 Schedule for Construction

The Contractor has 10 calendar days after award to provide Performance and Payment Bonds. Once

Performance and Payment bonds are approved the Notice to Proceed for construction will be issued.

Upon award, the Contractor shall determine and provide a schedule for completion of the construction milestones. The performance period for design and construction shall be 45 days from the date of

Notice to Proceed to substantial completion of the improvements.

2 General Requirements

This Section defines components of the project and the Contract Line Item, and outlines progress payments and required project meetings.

2.1 Definition of Contract Line Items

The intent of this Section is to explain, in general, what is included in each contract line item and to clarify limits or cut-off points where one item ends, and another begins. If a portion of the work is not explicitly covered in any line item below but is a part of the project, include the costs for that work in a related line item. The Contractor is responsible for determining and obtaining all necessary permits.

2.1.1 Contract Line Item No. 1 – Construction

This item consists of all labor, materials, supervision, and installation for the construction of the removal and replacement of the PVC roof system at Kowski Hall.

2.2 Progress Payments

2.2.1 Construction Phase

Progress payments during construction will be based on the percentage of work completed on items listed on the approved Schedule of Values. Actual construction completed and in place will form the basis for payment. Verification of the percentage (%) complete shall be initiated by the Contractor for approval by the COR. The Contractor shall make the computations for payment based on the government’s verification of work completed and in place for any periods for which progress payments are requested.

The Contractor shall furnish the originals of all field notes, invoices and payroll reports, and all other records relating to the basis for payment, to the CO, who shall use them as necessary to determine the final amount of progress payments. The Contractor shall retain copies of all such material furnished to the CO.

2.3 Project Meetings

2.3.1 Pre-Construction Meeting

The CO will arrange a n on-site pre-construction meeting with the Contractor. Notes of the meeting shall be recorded by the Contractor and will be distributed after the meeting. The meeting agenda will include the following as a minimum:

• Park rules and regulations

• Correspondence procedures

• Progress meetings

• Lines of authority

• Roles and responsibilities

• Coordination of subcontractors

• Submittal process

• Distribution of or access to digital images of construction progress

• Resolution to NPS comments on 100% Construction Documents

• Final construction schedule

• Weekly work schedule

• Progress payments

• Acceptance/rejection of the work

• Liquidated damages

• Labor standards and labor law application

• Payroll reports

• Modifications

• Accident Prevention Plan, accident reporting and safety plan

• Contractor’s Quality Control Plan

• Waste Management and Recycling Plan

2.4 Codes and Authorities

All units, structures and components must be constructed based on the following codes and authorities, depending upon application:

• International Building Code (IBC) latest edition

• NFPA (National Fire Protection Association) 13, 25, 70 and 70e, 101 – National Electric Code (NEC), most recent edition

3 Construction Requirements

3.1 Construction Support

3.1.1 Staging Areas

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. The landscape at this site is considered historical and will be treated as such.

Confine storage of construction materials and equipment to immediate vicinity of project site, unless directed otherwise by the CO. All staging areas shall be returned to pre-construction conditions once construction is complete. Standards for this, and methods for determining when the standards are met, shall be developed in consultation with the CO. If used, all temporary water, sewer, sanitary facilities, electric and other utilities, and utility connections shall be completely removed upon project completion.

The location of trailers, storage, field offices, sheds and staging areas will require CO approval.

3.1.2 Construction Camp

Establishment of a construction camp will not be permitted.

3.1.3 Construction Zones

Do not disturb portions of project site beyond areas in which the Work is indicated. Construction zones shall be fenced with CO approved construction barrier fencing, chain link, 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. All protection measures shall be clearly stated in the construction documents, and workers will be instructed to avoid conducting activities beyond the construction zone as defined by the construction zone fencing. The Contractor shall protect tree trunks and root systems of trees in or adjacent to work areas.

3.1.4 Protection of Public

The Contractor shall fence, barricade, or otherwise block off the immediate work area to prevent unauthorized entry. In the areas around entry and egress points for Kowski Hall, the contractor shall provide fall protection to protect visitors and employees from overhead fall hazards. Erect and maintain fencing, barricades, lights, signals, and warning signs in accordance with MUTCD-2003.

3.1.5 Parking of Construction Vehicles

Parking of vehicles shall be limited to existing roads, in legally designated areas, and within approved staging area(s).

3.2 Access

Coordinate construction efforts with the CO such that there is minimal impact to the work of NPS personnel and the visiting public.

The Contractor shall allow for Government occupancy of project site, and keep driveways and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles always. Do not use these areas for parking or storage of materials.

Maintain existing building in a weathertight condition throughout construction period. Repair damage caused by construction operations. Protect building and its occupants during construction period.

3.3 Visitor Experience

The following mitigation measures shall be incorporated into the project to minimize the impacts of construction activities on the visitor experience: Rope off areas while being worked in.

Working Hour Restrictions: Work during Park hours unless given special permission to work outside of normal Park operating hours (Monday through Friday 7:00 AM to 4:30 PM).

All work and deliveries shall be limited to the weekday business hours unless otherwise approved by the

CO. No work shall occur on NPS holidays or weekends without prior approval.

3.4 Environmental and Sustainability Requirements for Construction

The following are general environmental and sustainability requirements during construction, designed to minimize construction impacts.

3.4.1 Water

Avoid materials that can leach toxic chemicals into the ground water. Do not allow toxic chemicals to enter sewers or storm drains.

3.4.2 Noise

Minimize noise generation during construction. Operate power equipment in accordance with local noise restrictions.

3.4.3 Materials

Use resources efficiently. Select materials and use construction practices that achieve the most efficient use of resources and materials.

3.4.4 Air and Water Pollution Control

Air quality impacts are expected to be temporary and localized. All necessary and reasonable measures shall be taken to reduce air and water pollution by any material or equipment used during construction. To reduce tailpipe emissions, construction equipment shall not be left idling any longer than is necessary for safety and mechanical reasons. Volatile wastes shall be stored according to best industry practices and in covered containers.

3.5 Quality Control

3.5.1 General

The quality of all work shall be the responsibility of the Contractor. Inspect and test all work as needed to ensure that the quality of materials, workmanship, construction, finish, and functional performance is following applicable specifications and drawings. Quality Control Daily Reports shall be completed by the Quality Control Supervisor. Test reports shall be completed by person performing the test.

3.5.2 Quality Control Staff

The Contractor's Quality Control Supervisor may also perform the duties of Project Superintendent.

The Contractor's designated Quality Control Supervisor shall be on the project site whenever contract work is in progress. The Contractor's job supervisory staff may be used to assist the Quality

Control Supervisor, supplemented, as necessary, by additional certified testing technicians.

3.5.3 Quality Control Phases

3.5.3.1 Preparatory Phase

Perform before beginning each element of work.

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

• Review all applicable specifications sections and drawings related to the feature of work.

• Ensure that copies of all referenced standards related to sampling, testing and execution for the feature of work are available on site.

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

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

• Verify all field dimensions and advise the CO of discrepancies with contract documents.

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

• Document all preparatory phase activities and discussions on the Contractor's Quality

Control Daily Report.

• Provide certification and training records for employees for any critical work that requires inspection or testing during any portion of this contract.

3.5.3.2 Initial Phase

As soon as work begins, inspect, and test a representative portion of a particular element of work for quality of workmanship.

• Review control testing procedures to ensure compliance with contract requirements.

• Document all initial phase activities and discussions on the Contractor's Quality Control Daily

Report. Exact location of initial phase shall be indicated for future reference and comparison with follow-up phases.

3.5.3.3 Follow-Up Phase

Inspect and test as work progresses to ensure compliance with contract requirements until completion of work.

3.5.3.4 Additional Preparatory and Initial Phases

Additional preparatory and initial phases may be required on the same element of work for the following reasons:

• Quality of on-going work is unacceptable.

• Changes occur in the applicable quality control staff, on-site production supervision, or work crew.

• Work on a particular element of work is resumed after a substantial period of inactivity.

3.5.4 Execution

3.5.4.1 Off-Site-Control

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

3.5.4.2 On-Site Control

Notify the CO at least 48 hours in advance of the preparatory phase meeting and notify the CO at least 24 hours in advance of the initial and follow-up phases.

3.5.5 Testing Laboratory and Equipment

Employ certified independent laboratories to perform sampling and testing. The testing laboratory organization shall be certified for the type of testing work to be done.

All measuring devices, laboratory equipment, and instruments shall be calibrated at established intervals against certified standards in accordance with NBS requirements. Upon request, measuring and testing devices shall be made available for use by the Government for verification tests.

3.5.6 Documentation

Maintain Quality Control Daily Reports, Daily Test Report Information Sheets, and Accessibility

Inspection Reports (attached) of quality control activities and tests.

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

3.5.7 Enforcement

The Contractor shall stop work on any item or feature pending satisfactory correction of any deficiency noted by the Contractor’s quality control staff or the CO.

3.6 Temporary Materials, Equipment and Services

Temporary materials may be new or used but must be adequate in capacity for the required usage, must not create unsafe conditions, and must not violate requirements of applicable codes and standards.

3.6.1 Fire Protection Equipment

Observe and enforce standards of fire prevention. No open fires shall be allowed. A capable and qualified person shall be placed in charge of fire protection. The responsibilities shall include locating and maintaining fire protective equipment and establishing and maintaining safe torch cutting and welding procedures. Hot work permit is required from AHJ for hot work.

3.6.2 Vehicles and Equipment

Provide one fire extinguisher on each vehicle or piece of equipment. Extinguishers shall have a minimum UL rating of 2-A:10-B:C.

3.6.3 Hazard Control

Take all necessary precautions to prevent fire during construction. Do not store flammable or combustible liquids in existing structures. Provide adequate ventilation during use of volatile or noxious substances.

3.6.4 Spark Arresters

Equip all gasoline or diesel-powered equipment used in potential forest or grass fire locations with spark arresters approved by the U. S. Forest Service. Written determinations of areas and periods of potential fire hazard will be issued by CO. Locate internal combustion equipment so that exhausts discharge well away from combustible materials. Locate service areas a minimum of 50 feet from buildings. Shut down equipment before refueling.

3.6.5 Smoking

Smoking within 25 feet of buildings or temporary storage sheds is prohibited.

3.6.6 Welding

Cutting by torch or welding shall be performed only when adequate fire protection is provided. Hot work permit is required from AHJ for hot work.

3.6.7 Electricity

Temporary electrical work shall meet requirements of the current version of NFPA 70 (NEC) Article

590. When temporary connections are removed, restore existing utility services to their original condition.

3.6.8 Telephone

The Contractor shall decide with the local telephone company and pay all costs if the Contractor desires job-site telephone service.

3.6.9 Water

NPS shall provide potable water and pay all costs.

3.7 Maintaining Existing Utilities

Construction procedures will prevent accidental disruptions to facilities outside the project limits by investigation of existing utilities and protection during construction: accidental disruptions shall be remedied at no cost to the NPS.

3.8 Hauling Restrictions

Comply with all legal and local load restrictions in the hauling of materials.

3.9 Accident Prevention

3.9.1 Accident Prevention Program

Prior to the Preconstruction Meeting, submit a site-specific accident prevention program as described in Section 6.5.1. It must comply with OSHA 29 CFR 1910 General Industry Standards, OSHA 29 CFR 1926 Construction Standards including but not limited to subpart M. The program must be accepted by the NPS before any on site work can begin.

3.9.2 Accident Reporting

Reportable accidents, defined as death, occupational disease, traumatic injury to Contractor’s personnel, NPS employees or the public, property damage of any accident and fires, must be reported immediately. Complete an Accident/Property Damage Report (attached Form CM-22) and forward to the CO within seven days.

3.9.3 Quality Assurance

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

Do not allow employees to work if their abilities are impaired. Operators of all equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating such equipment.

3.9.4 Safety Measures

Provide the following:

• First aid supplies

• Fall protection for working on a roof as it relates to OSHA 29 CFR 1926 subpart M.

• Personal protective equipment that meets the requirements of NIOSH and MSHA

• Emergency instructions, including telephone numbers and reporting instruction for ambulance, physician, hospital, fire department and park police. Place in conspicuous locations at the worksite

• Adequate egress always in accordance with OSHA 26 CFR 1926 Subpart C

• Provide employee and visitor overhead protection at egress points.

• Hard hats for all employees

• Designate and post signs in all hard hat areas

3.9.5 Training

Provide training for first aid and hazardous material handling and storage.

3.10 Housekeeping

Keep project neat, orderly, and in a safe condition always. Construction areas shall be cleaned at the end of each day.

3.11 Project Close-out

3.11.1 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.

3.11.2 System Demonstration and Training

If applicable, train designated personnel in adjustment, operation, including seasonal and emergency operations, if applicable; maintenance; and safety requirements of equipment and systems. Instructors shall be thoroughly trained in operating theory as well as practical operation and maintenance work for each type of equipment or system. The sequence of the training shall follow the approved outline of the training guide, i.e. Operating and Maintenance Data. Individual sections specify the duration of training required. If no duration is listed, provide training of sufficient duration to adequately cover the subjects. Contractor shall provide 3 hours of training on site for that sprinkler.

3.11.3 Substantial Completion and Final Inspection

Submit written certification that project, or designated portion of project, is substantially complete, and request, in writing, a final inspection. Upon receipt of written request that project is substantially complete, the CO will proceed with inspection within 10 calendar 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, the COR will prepare a list of deficiencies

("Punch List") to be corrected before final acceptance. The CO will issue a Letter of Substantial

Completion. If work is not determined to be substantially complete, the CO will notify the

Contractor in writing. After completing work, the Contractor shall resubmit certification and request a new final inspection.

If, following final inspection, the work is determined to be substantially complete, CO 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 CO 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.

3.12 Acceptance of the Work

The NPS Authority Having Jurisdiction (AHJ), or his designee will perform final acceptance test on the system before the system is recommended for final acceptance to the Contracting Officer (CO).

After all deficiencies have been corrected, the CO will issue a Letter of Acceptance.

4 Project Description and Technical Requirements

4.1 Existing Conditions

4.1.1 Existing Site Description

The existing PVC roof system is failing, and needs replaced. There has been a history of leaks in the past, so sheeting repairs are probably needed as well. The contractor will have to remove and reinstall the existing lightning protection system. Install snow boards at entry/exit points to mitigate the snow sliding hazards. The existing gutters and downspouts are failing, and need replaced as well as cleaning the associated drains to each.

4.2 Detailed Project Description

4.2.1 Replace Kowski Hall Roof

Contractor shall provide all labor, materials, supplies, and tools to perform the following work, at its sole cost and expense:

Technical Inspection and Report documentation

1. Provide all reports, drawings, recommendations, etc., including stamped copies, as required.

Provide soft copies of all information included both in PDF and raw copy format. I.E. word documents, excel documents, and dwg format. Submittal documents shall include PVC roofing material descriptions, sizes, and thickness’, SDS for chemicals, and warranty information.

2. Due to the historic fabric of this building, contractor shall provide details of the methods for carpentry or sheeting repairs. The CO shall have final approval on the proposed methods.

3. Desired system to be installed shall be a PVC roof membrane system. Seaming techniques shall meet manufactures recommendations and be approved by the COR.

4. The PVC roof system means and methods for Kowski Hall shall be approved by the CO and

COR. System should be installed free from defects, air pockets, wrinkles, and patches. New roof shall be installed on the building while it is occupied.

5. During installation, provide for daily inspections by the COR. System shall be inspected during removal and installation phases as required by the specifications.

6. Upon completion, the contractor shall schedule a final inspection with the COR. Once final inspection has been completed, all final punch-out items are resolved, final deliverables are received, only then will the NPS accept the work of this contract.

7. Contractor shall correct any deficiencies found during final inspection by COR, at their own expense.

4.3 Project Technical Requirements

4.3.1 Facility Services Specification Subgroup

TESTING

Contractor’s Material and Test Certificates

Upon completion of any required testing, the contractor shall submit completed and signed material and test certificates for the specified requirements.

5 Deliverables and Submittals

5.1 Design and Construction Schedule

Upon award, the Contractor shall determine and provide a schedule for completion of the project, including identification of probable critical paths. The schedule shall include following design and construction milestones and elements, and any others identified by the Contractor:

Upon acceptance of the Construction Schedule by the Contracting Officer, the Construction Schedule will be used to evaluate the Contractor's monthly applications for payment. The schedule shall be updated and transmitted to the CO before the Pre-Construction meeting, monthly with updates, and immediately if any adjustments impacting the schedule by a week or more are required.

5.2 Schedule of Values

After contract award submit a schedule of dollar values. Breakdown each lump-sum item into component parts of construction work for which progress payments may be requested. The total costs for the component parts of work shall equal the contract line item amount for that lump-sum item. The

CO may request data to verify accuracy of dollar values. Include mobilization, general condition costs, overhead and profit in the total dollar value of unit price items and in the component parts of work for each lump-sum item, as described below. Do not include mobilization, general condition costs, overhead or profit as a separate item.

The total cost of all items shall equal the contract sum. The Schedule of Values will form the basis for progress payments. An acceptable Schedule of Values shall be agreed upon by the Contractor and CO before the first progress payment is processed.

5.3 Design and Construction Documents

5.3.1 As-Built Drawings

Provide as-built drawings by updating the approved construction drawing AutoCAD files with information provided on the record drawings, contract modification, and other applicable shop drawings, sketches, and data. AutoCAD files should be in compliance with NPS CAD Standards.

Drawings shall be provided on reproducible mylar.

5.4 Technical Specifications and Submittals

5.4.1 Material Submittal and Approval Procedures

Other types of submittals in addition to those above may be required. Submit design and construction submittals a minimum of 14 calendar days prior to the need for approval. Submit four

(4) copies of paper submittals, directing one to the COR, two (2) to the PM, and one to the CO.

Submit sufficient information based upon the performance specifications for the NPS to make an informed decision on compliance or lack of compliance for the items above. Submittals shall be transmitted using NPS form CM-16. A copy of the form is included as an attachment.

5.4.2 Contracting Officer's Review

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

After reviewing submittals, the CO will return one copy of form CM-16 and one copy of applicable

(marked up) submittal sheets to the Contractor. All submitted items will be retained.

Samples shall be large enough to illustrate clearly the functional characteristics and full range of color, texture, or pattern. When using Manufacturers' Catalog Sheets or cut sheets, submit only pertinent pages and clearly mark each copy of standard printed data to identify specific products proposed for use.

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

APPROVED: Acceptable with no corrections.

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

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

5.5 Pre-Construction Deliverables

The following deliverables shall be submitted a minimum of one week prior to the Pre-Construction

Meeting.

• Letter designating the Contractor’s Project Superintendent

• Contractor’s Certificate of Insurance

• Bond

• Final project schedule with construction portion fully developed

• Site specific Safety plan

• Schedule of Values

• A list of subcontractors for this project (must be same as in the Contractor’s proposal)

• Waste Management and Recycling Plan

• Contractor Quality Control Plan

• Visitor Access Control Plan (projects affecting trails and visitor use facilities)

• Contractor’s approved staging area fencing

• Portable toilets

• Covered dumpster

5.5.1 Accident Prevention Program

The site-specific Accident Prevention Program shall comply with OSHA and project requirements.

Include the following:

• Name of prime contractor’s superintendent

• Monthly safety meetings

• First aid procedures

• Outline of each phase of work

• Hazards associated with each phase and methods proposed to ensure property protection and safety of the public

• NPS staff and Contractor employees, including contact information

• Training

• Plan for possible emergency situations

• Housekeeping and fire protection

5.5.2 Daily Reports

Submit reports on the Monday following the previous week for the entire week covered by the report, noting all inspections, tests, number of workers the subcontractors has on site, materials delivered, weather conditions and any unforeseen conditions encountered for each day cover by the report.

5.5.3 Test Reports

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. Submit

Daily Test Information Sheets with Quality Control Daily Reports. Submit failing test results and proposed remedial actions within four hours of noted deficiency. Submit three copies of complete test results not later than one calendar day after the test was performed.

5.6 Project Close-Out Submittals

Provide the following documents at project close-out and before submitting a request for final inspection.

5.6.1 Operation and Maintenance Data

Provide one 3-ring binder with operation and maintenance data to the CO for review prior to the final inspection. Data shall include manufacturer's standard literature, materials data sheets, vendor-furnished as-built drawings; custom written data not included in manufacturer’s standard literature; schedules, warranties, parts lists, test results, and subcontractor list. After NPS review is completed, incorporate comments and submit 3 final sets of operation and maintenance data to the

CO.

5.6.2 Other Items

Provide Guarantees, Warranty, Bonds, and Repair Materials, etc., as required by the project.

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