SOW_FINAL.pdf

SCOPE OF WORK

Slate Roof Repair & Flashing Replacement

Oconaluftee Administrative Building

I. BACKGROUND

The project is for the repair, replacement, of components to protect the integrity of the roof and structure of Oconaluftee Administrative Building. The location is in the Oconaluftee area of the park, on Newfound Gap Road in the Great Smoky Mountains National Park and houses staff for multiple divisions. This project is to replace all Flashing on the roof structure (valleys, ridge, pipe, step flashing, and counter flashing around all chimneys, dormers, etc..) Replacing any damaged or missing slate, Tuck pointing of Chimney from the roof line up to the top of the chimney, and to fabricate new Chimney caps.

Oconaluftee Administrative Building

GPS Coordinates: Latitude +35.513747 Longitude: -083.306391 Address: 1194 Newfound Gap Rd, Cherokee NC, 28719 Roof size is approximately 9,311 total sqft Roofing slate are believed to be a Buckingham gray slate, the widths are 10”, 11”, & 12”, exposure is 7 ½”-

8” Valley Flashing exposure is 7” wide, length is 20’, Valley’s above dormers have an exposure of 4” with a length of 4’ 6” 2- Dormers, 2 chimneys, and 3 other areas that have step flashing estimated to be 70 linear feet The two chimneys and two areas along the building have counter/cap flashing All flashing will be 16 oz. copper flashing at a minimum.

Chimney caps are estimated measurements is 3’x 10’ each Contractor is responsible for acquiring all supplies, materials, equipment, and labor

Once the notice to proceed has been issued, the contractor will hold a pre-construction meeting with the contracting officer and COR.

Submittals must be provided within 2 weeks from the date of the notice to proceed from the contracting officer.

Work shall begin within 30 days from the notice to proceed date based on availability of materials. Prior to initiation of contracted work, the contractor shall submit a site-specific safety plan to the park’s COR for review and approval that includes identification of the on-site safety officer.

Contractor and Workers Experience

a. Contractors Shall have a minimum of five years of professional experience in the repair and restoration of natural slate roofing and can provide a resume’ demonstrating the successful completion of slate roof repair and restoration projects of a similar size and scope.

b. Contractors shall use workmen who are trained and experienced in slate roof repair and restoration, removing and re-installing metal flashing, and all other skills needed to satisfactorily complete the project as specified, or use workmen who are under the full-time supervision of a foreman or supervisor with such training and experience.

c. Contractors shall use workmen familiar with the use of slate hammers for punching and nailing slate shingles, slate rippers for removing slates already installed, slate cutters for trimming and cutting slate shingles, slaters stakes used with slate hammers that have a cutting shank, roof brackets and scaffolding for staging the roof, and hook ladders for accessing areas of the roof not staged.

II. DESCRIPTION OF WORK/SCOPE: The contractor shall furnish all personnel, equipment, power, tools, materials, supervision, and other items and services necessary to replace all flashing material, any loose, damaged, or missing slate shingles, the fabrication and install of chimney caps, and the installation of the gutter guards. The structure is a stone structure estimated a little over two stories tall. The contractor will be responsible for using proper installation methods and proper trade methods for the adjustment of both unsquared and square areas along the roof.

Roof Specification:

a) Contractor shall provide submittals for slate shingle tiles to be used to the COR for approval.

b) The Contractor shall take precautionary measures to prevent damage to the existing slate tiles during the repair process, workers shall not damage slates by walking on them. The roof shall be properly staged to allow safe work surfaces, such as scaffold-grade planks, that prevent unnecessary foot traffic on the slates. Roof ladders, hook ladders, chicken ladders, lifts, or other such devices, shall be used to protect the roof surfaces from foot traffic.

c) The contractor will be responsible for protecting surrounding structures and landscaping from damage during the duration of the job. The contractor will be required to tarp off all areas around the structures to catch all loose debris. Areas around the building shall be cleaned of all nails, fasteners or other tire puncture hazards daily.

d) The contractor shall provide temporary weatherproofing of all exposed roof surfaces during non-work hours of project, and in inclement weather during work hours. If damage occurs as a result of inadequate weatherproofing, Contractor shall make repairs at no additional cost to the government including replacing all damaged components or equipment and interior contents of the building. The building will be in use and occupied during construction so any repairs or replacements will be completed immediately.

e) The contractor shall be responsible for installing all new Flashing which includes valley flashing, pipe flashing, step flashing, and counter flashing, all flashing will be of 16-ounce copper flashing at a minimum.

(a) The valley metal must be wide enough to extend under the slates on either side of the valley by a minimum of 5 inches. Lower slope applications (e.g., 6:12 or less) may require increased overlapping. Do not make valley sections longer than ten feet, otherwise expansion and contraction problems can occur, overlap valley sections six inches in most cases, but more overlap, as much as twelve inches, may be required in lower slope situations (e.g., 6:12 or less). Slates overlying valley flashings must be carefully removed and saved for reuse whenever possible. Number the valley slate courses before removal. Numbering the slates makes the re-installation of the slates quicker and easier. Any slates that were removed that are broken, tarred, cracked, perforated, or defective, should be replaced with sound, matching slates during the valley replacement process.

(b) Pipe flashings should be replaced in their entirety. The old pipe flashing is to be removed and a new flashing, either shop fabricated or purchased, is to be installed in its place. Non-corrosive metal pipe flashings are recommended. The slates surrounding the pipe flashing must be carefully removed and saved for reuse, whenever possible. The pipe flashing baseplate shall be sized to maintain a minimum of three inches of head lap with underlying and overlying slates, as well as minimum three inches side lap with adjacent slates. Any slates that were removed when replacing the pipe flashing that are broken, tarred, cracked, perforated, or defective, should be replaced with sound, matching slates during the flashing replacement process.

(c) Slates overlying step flashings shall be carefully removed and saved for reuse. The original flashings are then removed in their entirety and replaced with minimum 16-ounce copper.

Step flashings shall be installed immediately underneath the overlying slates such that the bottom edge of the step flashing is flush with the bottom edge of the overlying slate. Step flashings shall extend vertically underneath the second course of overlying slates a minimum of 3 inches. The lengths of the step flashings shall be equal to the length of the slate exposure plus a minimum 3 inches, thereby allowing the step flashings to overlap each other by a minimum of 3 inches (4 inches when the roof slope is less than 8:12, two inches when the slope is 20:12 or greater). Step flashings shall extend a minimum of 4 inches onto the roof and a minimum of 4 inches vertically, wherever possible. Nail the step flashing to the roof above the underlying slate so that the slating nails do not penetrate the step flashing. Any slates that were removed that are broken, tarred, cracked, perforated, or defective, should be replaced with sound, matching slates during the valley replacement process.

(d) Wood siding covering step flashing will be removed and reinstalled over new flashing, if siding is damaged replace with in-kind material and design, siding will be fastened using proper methods, and will be painted to match existing color, and finish.

(e) Replacing overlying counter flashing or cap flashing, replace counter flashings using minimum 16-ounce copper, wedge the counter flashings into mortar joints at least 3/4 inches deep, using galvanically compatible metal wedges, such as lead or copper. Mortar joints that have been cut out to allow for the insertion of the new flashing may be resealed using a high-grade caulk/sealant, fully cut out joints will be repointed with mortar. Refer to National Parks Service (NPS) Preservation Brief Repointing Mortar Joints in Historic Masonry Buildings.

f) The contractor shall replace the membrane or flashing material under slate ridge cap, slates that are overlying are to be removed and saved for reuse. Any fasteners visible or not covered by overlying slate must be sealed with a high-grade caulk. Any slates that were removed that are broken, tarred, cracked, perforated, or defective, should be replaced with sound, matching slates.

g) The contractor shall replace any damaged or missing slate tiles. All slate roof surfaces shall be inspected for cracked, broken, missing, perforated, face-nailed, screwed, caulked, or otherwise leaking slates. Defective slates will be removed using appropriate tools and methods. Defective slates must be replaced with slates that match the existing slates in type, length, width, thickness, shape, and color. Roofing slates are believed to be a Buckingham gray slate, the widths are 10”, 11”, & 12”, exposure is 7 ½”-8”

h) The contractor shall tuck point mortar joints that are loose or failing on the chimney above the roof line up to the top of the chimney, cleaned out joints will be repointed with mortar.

Refer to National Parks Service (NPS) Preservation Brief Repointing Mortar Joints in Historic Masonry Buildings.

i) The contractor shall remove existing chimney caps and fabricate new chimney caps to resemble what is previously on the chimneys. The chimney caps will be fabricated out of 24ga copper, constructed to withstand heavy snow loads and secured to chimney to withstand high winds, and sealed to keep out bats and other wildlife.

j) All materials shall be installed in accordance with industry standard installation techniques and manufacturer’s installation specifications to meet warranty.

k) The contractor shall provide copies of the warrantees, including roofing manufacturers and contractor’s workmanship and all applicable written product operation and maintenance instruction manuals. The contractor shall brief the park’s COR on the operations and maintenance requirements.

l) All work required by the project documents is to be successfully and satisfactorily completed, in its entirety by the Contractor.

m) Contractor shall comply with all applicable National Park Service regulations and directives pertaining to security, safety, occupational health, fire, traffic, and personnel clearances while at Great Smoky Mountains National Park. The park rules are located at under the polices link. Superintendent’s Compendium The COR can also provide if requested.

n) If the contractor makes use of any scaffolding, the area around the scaffolding shall be barricaded in such a way as to prevent accidental entry into the scaffolding area by unauthorized individuals and any scaffolding over ten feet in height will make use of toe boards. Contractor shall comply with all OSHA regulations pertaining to this project.

o) The contractor shall follow all OSHA requirements on the job site including OSHA hard hat requirements.

IV. Business Hours. The contractor shall complete on-site work during normal business hours of 7:00 am to 3:30 pm, Monday through Friday, excluding Federal holidays. The contractor shall coordinate specific on-site work schedule with the Contracting Officer and COTR at least five days prior to performance start date. While on site, the COTR may be reached by mobile phone during normal business hours. Work shall be completed within 150 days after Contracting Officer issues the Notice to Proceed. Any work outside of normal business hours shall be requested with 72 hour’s notice to the Contracting Officer and COR.

V. Management. The contractor shall manage the total work effort in accordance with effective and efficient management principles and safe working practices to ensure on-time completion of this contract.

VI. Safety & Environmental Compliance:

a. The contractor shall comply with pertinent provisions of the Occupational Safety and Health Act (OSHA), and state, local, safety, laws.

b. The contractor shall comply with pertinent Environmental Protection Agency laws and regulations.

c. The Park Safety Officer has the authority to issue restraint or cease-and-desist orders to the contractor when violations or unsafe acts are present and threaten Government and contractor employees or damage to Government property.

d. The contractor shall immediately report to the Contracting Officer, COR and Park safety officer all accidents resulting in employee injury or death or damage to property while performing this contract.

VII. Insurance. The Contractor shall be insured in accordance with State of Tennessee insurance regulations. The Government is not responsible for damage to Contractor's equipment, vehicles, tools or materials or their employees and the personal property brought on- site. The Government will not accept any liability due to contractor employee negligence.

a. Workers Compensation: The contractor shall furnish proof of workers compensation insurance to the Contracting Officer for those employees performing work related to this contract and shall comply with the Workman's Compensation Laws of the State of Tennessee.

b. Liability: The Contractor shall maintain a level of insurance that will protect the contractor and the Government from any claims because of bodily injury (including death) and property damage which may arise from and during the performance of this contract and shall submit proof of insurance to the

Contracting Officer.

VIII. Motor Vehicle & Traffic Regulations. Contractor employees operating motor vehicles shall possess a valid driver's license. Driver and vehicle permit, licenses, registrations, and proof of insurance shall be always maintained in the vehicle and made available upon request. Contractor employees shall comply with federal vehicle motor law requiring seat belts be always worn. Contractor employees shall adhere to the posted speed limits.

IX. Employee Badges/Parking. All contractor employees shall comply with parking procedures published for the Park. Contractor employees shall return any PARK issued personal or vehicle identification badges or parking tags immediately upon termination of employment or completion of this contract.

X. Replacement of Contractor Employee for Security Reasons. The Government retains the right to request removal of the contractor's employee(s), regardless of prior clearances.

XI. Non-Payment for Additional Work. Any additional contractor performed services not specified in contract, either at its own volition or at the request of an individual other than an appointed Contracting Officer, except as may be explicitly authorized in the contract, shall be performed at the financial risk of the contractor.

Only an appointed Contracting Officer is authorized to bind the Government to a change in specifications, contract terms, or conditions.

XII. Conflict of Interest. The contractor shall not employ off-duty COR' s or other Government employees if such employment would create a conflict of interest or be contrary to the policies contained in conflict-of-interest directives.

XIII. Quality Control. The contractor shall establish and maintain a Quality Control Plan (QCP) to ensure the work performed conforms to the contract requirements. T he contractor's QCP shall address methods for remedying poor performance. The Contractor shall develop QCP and submit with proposal package. The Contractor's QCP includes:

a. Required work identified in this Statement of Work

b. Daily Reports

c. Method and timeframe for responding to COR

d. Progress meetings with Government stakeholders

XIV. Quality Assurance. The COR will monitor the contractor's performance under this contract. The COR will coordinate the following:

a. Acceptance of the contractor's quality control plan

b. Inspection of the contractor's work and compliance to the specifications

c. Progress meetings with the contractor

XV. Contractor's Proposal Package. The following deliverables are to be submitted with offer in response to RFQ.

a. Technical approach to perform required work that meet specifications.

b. Contractor’s qualifications.

c. Contractor safety plan.

d. Contractor's QCP.

e. Proof of Insurance-Business Liability & Workers Compensation.

XVI. Inspection. The Government will conduct inspection upon completion of required work. Final payment will be processed upon confirming that all noted contractor performance deficiencies have been satisfactorily corrected.

XVII. Schedule. The Contractor shall provide a schedule for completing the proposed scope of work. The schedule shall include all time required for mobilization, demolition, replacement of roofs, and final clean-up.