J1 - Mortimer Work Center Roof SOW Specs.pdf

US Forest Service Department of Agriculture (USDA) Region 8 - Southern Region

National Forests in North Carolina Grandfather Ranger District, Pisgah National Forest

MORTIMER WORK CENTER ROOF

REPLACEMENT& EXTERIOR REPAIRS

Statement of Work and Specifications

NFsNC Engineering T. Heim & C. Davis

April 2024

TABLE OF CONTENTS

DIVISION 1 – GENERAL REQUIREMENTS

1.1. GENERAL

1.2. SUMMARY OF WORK

1.3. STORAGE OF MATERIALS

1.4. EXISTING FACILITIES

1.5. SAFETY

1.6. CONSTRUCTION SCHEDULING & CONSTRAINTS

1.7. SUBMITTALS

1.8. QUALITY CONTROL

1.9. CLEANUP

1.10. INSPECTION & ACCEPTANCE

1.11. SELECTIVE DEMOLITION

DIVISION 2 – ASPHALT SHINGLES AND UNDERLAYMENT

1.1. GENERAL

1.2. PRODUCTS

1.3. EXECUTION

DIVISION 3 – RIDGE AND GABLE LOUVER VENTS

1.1. GENERAL

1.2. PRODUCTS

1.3. EXECUTION

DIVISION 4 – FASCIA, TRIM, SIDING AND FLASHING

1.1. GENERAL

1.2. PRODUCTS

1.3. EXECUTION

DIVISION 5 – PAINTING

1.1. GENERAL

1.2. PRODUCTS

1.3. EXECUTION

DIVISION 1 – GENERAL REQUIREMENTS

1.1. GENERAL

PROJECT LOCATION:

A. Location of work is the Grandfather Ranger District Mortimer Work Center in Caldwell County North Carolina.

B. The address of the Work Center is 8410 Edgemont Road, Collettsville, NC 28611.

1.2. SUMMARY OF WORK

A. This project consists of the full replacement of the shingles and underlayment, along with any defective roof sheathing for the Mortimer Work Center. The installation of a new ridge vent and gable vent is also included.

B. This project also consists of limited replacement of damaged and deteriorated exterior wood siding and trim, including associated flashing against masonry chimneys.

C. The Contractor shall furnish all labor, materials, equipment, tools, supplies, supervision and any other incidentals necessary to perform all work required as listed in the Bid Schedule and Specifications.

1.3. STORAGE OF MATERIALS

A. The Contractor may store materials and equipment at the work site at his own risk. All materials must be kept in an area designated by the COR and be neat and orderly.

1.4. EXISTING FACILITIES

A. There are sanitary facilities available at the project site.

B. The Contractor will be allowed to use electricity and water free of charge for the duration of this project only.

1.5. SAFETY

A. The contractor shall adhere to all applicable OSHA regulations.

1.6. CONSTRUCTION SCHEDULING & CONSTRAINTS

A. A proposed schedule of work shall be submitted to the COR for approval 10 days prior to starting construction.

1.7. SUBMITTALS

A. The Contractor shall furnish the submittals listed below to the COR for approval prior to ordering/purchasing. Submittals shall be identified on a transmittal cover sheet that shall be signed by the contractor or representative, and the COR. The contractor must clearly identify the product/model being submitted for approval. All submittals shall be evaluated and either approved or rejected by the COR. One digital copy of the following submittals is required. Additional submittals may be required if deemed necessary by the

COR.

1. Shingles 4. Ridge Vent

2. Underlayment 5. Paint

3. Drip edge 6. Gable Vent Product Specifications and Shop Drawing

7. Flashing

B. If the Contractor intends to provide or install an item that is an "or equal" or differs from that which is specified, he/she shall submit all product data and information to the COR for review prior to ordering/purchase.

C. The contractor shall submit one digital copy of the manufacturer's description of all "or equals" proposed in lieu of name brands specified. This description shall include:

a. Product name and model number

b. Manufacturer

c. Product description

d. Technical data

D. The Contractor shall provide all guarantees, certificates of performance, instructions, and warranties provided by the manufacturer or required by the specifications to the

COR.

1.8. QUALITY CONTROL

A. This work shall consist of providing quality control to ensure conformance with contract and manufacturer specifications. The Contractor shall provide all personnel, equipment, tests, and reports to meet the requirements of this specification.

B. The Contractor shall provide and maintain a quality control system that will ensure that all services, supplies, and construction required under this contract conform to the contract requirements. The Contractor shall perform, or cause to be performed, any sampling, inspection, and testing required to substantiate that all supplies, services, and construction conform to the contract requirements.

C. The Contractor shall furnish certificates or labels executed by the manufacturer, supplier, or vendor, stipulating that all products incorporated into the work meet the applicable requirements as shown on the drawings or specifications.

D. Quality Control shall be considered incidental to the bid items and no additional payment will be made.

E. The contractor shall maintain a complete set of these specifications onsite at all times.

F. The contractor or their representative shall be onsite at all times that work is ongoing.

G. The COR shall be the sole determiner of workmanship and quality.

1.9. CLEANUP

A. The Contractor shall leave the site clean and ensure no trash or debris is left behind. No dumpster is available, contractor must dispose of all materials offsite.

B. Contractor shall use a magnetic roller to retrieve any nails that may have fallen on the ground.

1.10. INSPECTION & ACCEPTANCE

A. The COR or inspector may inspect any and all work at anytime during this project.

B. Any work that does not meet contract specifications shall be corrected by the contractor with no additional pay.

C. The Contracting Officer’s Representative (COR) shall inspect the roof sheathing after the shingles and underlayment have been AND BEFORE any repairs are made.

D. The Contracting Officer’s Representative (COR) shall inspect the framing after the fascia and siding has been removed AND BEFORE any repairs are made.

E. The COR shall inspect the work when and if any repairs are made to the sheathing or sub-fascia, PRIOR TO installation of any new underlayment or fascia.

F. The Contractor shall provide the COR color samples for the paint for approval prior to purchasing/ordering.

G. The COR shall perform a final inspection when all the work is complete.

1.11. SELECTIVE DEMOLITION

A. This work shall consist of the removal and satisfactory disposal of the existing shingles, underlayment, drip edges, defective fascia, defective sheathing needing replaced, as well as siding and trim needing replaced.

B. The Contractor shall execute the demolition work in a way not to damage adjacent structural members, existing gutters, property, or other facilities.

DIVISION 2 – ASPHALT SHINGLES AND UNDERLAYMENT

SECTION INCLUDES:

1. Asphalt Shingles and Underlayment.

A. See Division 1 for submittal information.

B. Store roofing materials in a dry, well-ventilated location protected from weather, sunlight, and moisture in accordance with manufacturer's written instructions.

1.2. PRODUCTS

A. New Asphalt Shingles shall be Laminated-Strip Asphalt Shingles: ASTM D3462/D3462M, laminated, multi-ply overlay construction; glass-fiber reinforced, mineral-granule surfaced, and self-sealing. Shingles shall be either:

i. CertainTeed Landmark, Colonia Slate color

ii. GAF Timberline HDZ, Slate color

iii. Approved equal meeting the specifications above, as approved by COR

B. Underlayment shall be self-Adhering, Polymer-Modified Bitumen Sheet: ASTM D1970/D1970M, minimum [40-mil-thick sheet; glass-fiber-mat-reinforced, polymer-modified asphalt; with slip-resistant top surface and release backing; cold applied.

Underlayment shall be either:

i. GAF WeatherWatch Mineral Surfaced Peel and Stick Roof Membrane

ii. Grace Water and Ice Shield Self-Adhered Roofing Underlayment

iii. CertainTeed WinterGuard Synthetic Roof Underlayment

iv. Approved equal meeting the specifications above, as approved by COR

C. Asphalt Roofing Cement: ASTM D4586/D4586M Type II, asbestos free.

D. Roofing nails shall be 1-1/4" long, II-gauge galvanized roofing nails.

E. Install black or grey color aluminum drip edge around perimeter of roof

1.3. EXECUTION

A. Remove existing single layered shingle roof including synthetic underlayment. Pull all nails. Report any defects or repairs needed to the Contracting Officer.

B. Removed roofing shall become the property of the Contractor and shall be removed from the premises.

C. Use magnetic roller to retrieve any nails that may fall off the roof.

D. Protect the existing vegetation from damage.

E. Protect existing gutter system. Repair any damage caused during removal of old roof or installation of new shingles. Remove and reinstall if needed to avoid damage.

DIVISION 3 – RIDGE AND GABLE LOUVER VENTS

SECTION INCLUDES:

1. Ridge vents.

2. Gable louver vents.

I. Remove existing plywood from east gable opening and install framing inside existing opening to accommodate gable louver vent in appropriate 36” x 72” rough opening.

Install, mount, trim and paint gable louver vent in such as manner as to match existing architectural character as much as practicable.

See Division 1 for submittal information.

A. Store roofing materials in a dry, well-ventilated location protected from weather, sunlight, and moisture in accordance with manufacturer's written instructions.

B. Protect unused roofing materials from weather, sunlight, and moisture when left overnight or when roofing Work is not in progress.

C. Handle, store, and place roofing materials in a manner to prevent damage to roof deck or structural supporting members.

D. Environmental Limitations: Proceed with installation only when existing and forecasted weather conditions permit product installation and related Work to be performed in accordance with manufacturer's written instructions and warranty requirements.

A. Rigid ridge vents shall be manufacturer's standard, rigid-section, high-density, UV-stabilized plastic ridge vent for use under ridge shingles.

i. CertainTeed Ridge Vent

ii. GAF Cobra Ridge Vent

B. Gable louver vent shall be manufacturer's standard, UV-stabilized steel or aluminum, composed of a single piece or two vertically stacked components sized to fit an approximate 36” x 72” rough opening centered within existing trimmed gable opening and include interior integrated or supplemental insect screening.

i. 36” x 36” Aluminum Outdoor Weatherproof Louver Vent – Rain and Waterproof Air Vent with Mesh Screen. Model No LO3636 by HVAC Premium (hvacpremium.com)

C. Trim and paint gable vent to match existing exterior.

A. RIDGE VENT

a. Remove existing single layered shingle roof including synthetic underlayment.

Pull all nails. Report any defects or repairs needed to the Contracting Officer.

b. Removed roofing shall become the property of the Contractor and shall be removed from the premises.

c. Use magnetic roller to retrieve any nails that may fall off the roof.

DIVISION 4 – FASCIA, TRIM, SIDING AND FLASHING

A. Work of this section shall include removal and replacement of damaged fascia, trim, and siding adjacent to east and west masonry chimneys.

B. Work also includes removal and replacement of existing flashing around chimneys.

Flashing configuration shall consist of counter flashing and step flashing.

C. Contractor to determine quantities prior to placing bid. Forest Service will mark extent of repair work prior to pre-bid meeting.

A. New fascia material shall be pressure treated 1X Southern Yellow Pine with a minimum grade of #2 and shall conform to Federal Specification MM-L-751H and to the latest grading rules of the Southern Pine Association. All lumber shall be graded and stamped by a certified, accredited inspector and have the appropriate grademark of the Association.

B. All fascia shall match existing dimensions and quantities. All siding shall match existing dimensions, profile, and reveal.

C. Kiln dried lumber shall not exceed 15% moisture content as determined by ASTM Test Method D-2016; all other lumber shall not exceed 20%.

D. Fasteners shall be galvanized 8d nails.

E. Flashing shall be Aluminum Sheet per ASTM B209.

A. FASCIA, TRIM and SIDING

a. Rotten or damaged sub-fascia and framing must be replaced with like material fastened with 16d nails before installation of new fascia.

b. Ensure cuts are square and/or angles are correct, closely fitted, and accurately set level and/or plumb to required lines and levels. Secure in place with fasteners ensuring wood does not split or bust.

c. Fascia shall be attached with the use of a pneumatic nail gun. Edges may be pre-drilled and nails driven in with a hammer to prevent splitting if necessary.

d. Pneumatic nail gun shall have a protective cover on the tip to keep from damaging the fascia.

e. If nails are flush with surface, apply a light layer of caulk/sealant to nail head to help with paint adhesion. If nails are recessed, use nail hole filler.

f. Horizontal joints for fascia shall be cut 45 degrees with the top board overlapping the bottom.

g. Horizontal butt joints for siding shall be vertical.

h. Top of new fascia shall butt up to the bottom side of the drip edge that sits on the roof deck.

i. 1x6 fascia and siding material require two nails aligned vertically every 18-20 inches.

B. FLASHING

a. Install work with laps, joints, and seams that are permanently watertight and weather resistant.

b. Counterflashing: Coordinate installation of counterflashing with installation of base flashing.

c. Cut 1-inch-deep by 1/4-inch-wide groove in masonry chimney for counter flashing installation, and seal to be permanent and weathertight.

d. Insert counterflashing to fit tightly to base flashing.

e. Extend counterflashing 4 inches over base flashing.

f. Lap counterflashing joints minimum of 4 inches.

DIVISION 5 – PAINTING

A. This work consists of painting the fascia, soffit, siding, trim and gable vent.

B. Painting includes cleaning, prep, securing loose materials, caulking, filling holes, applying paint, and cleanup.

C. Quality Assurance

a. All paints and primers shall be furnished in original, unopened containers bearing the manufacturer’s label to include manufacturer’s name, type of paint of primer, manufacturer’s stock number, color, and instructions for application.

D. Environmental Requirements

a. Comply with the manufacturer’s recommendations as to environmental conditions under which coatings and coating systems can be applied.

A. Wood Primer shall be PPG Acri-Shield Max Exterior Acrylic Bonding Primer, Sherwin Williams PrimeRX Peel Bonding Primer, or approved alternative.

B. Paint shall be Benjamin-Moore Aura exterior paint, Sherwin-Williams Emerald exterior paint, or an approved equal top quality paint that is long lasting, fade resistant, cleaner over time, with high adhesion properties.

C. Paint sheen shall be Satin.

D. Caulk shall be Allpro Prostretch acrylic urethane elastometric sealant or approved equal.

E. Nail filler shall be DAP Platinum Patch Advanced Exterior Filler or approved equal.

F. Rusty nails shall be treated with OSPHO surface prep or approved alternative.

G. Paint colors shall match the original colors as close as possible.

A. Remove all loose paint.

B. Make any necessary repairs.

C. Clean surfaces to be painted.

D. Remove any failed caulk and caulk cracks and joints.

E. Fill nail holes with DAP Platinum Patch Advanced Exterior Filler or approved equal.

F. Treat rusty nail heads with OSPHO surface prep per manufacturer’s instructions.

G. Painting requires one coat of primer, and two coats of paint. Back brushing and rolling are required if spraying.

H. No paint shall be applied when the temperature is below 40 degrees or when those temperatures are likely to be reached within 48 hours.

I. All paint and primer shall be applied in accordance with the manufacturer’s instructions.

J. Painting and Priming shall be smooth, free of brush marks, streaks, laps, drips, runs, and skipped or missed areas.

K. Keep brushes and rollers clean, dry, free from contaminants, and suitable for the finish required.

L. Make edges of paint adjoining other materials or colors straight and sharp with no overlapping.

M. Remove spilled, splashed, or splattered paint from all surfaces.

N. If spraying, overspray must be controlled and not permitted to reach areas or materials not intended to be painted as part of this project.

O. Upon completion of work, all surplus material and debris from the paint work shall be removed from the job site. Left over paint may not be disposed of in the Work Center trash.