SOW Bowling Alley Roof B7115.pdf

Coat Bowling Alley Roof B7115

FNWZ 25-0144

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SCOPE OF WORK

1. FNWZ 25-0144, Coat Bowling Alley Roof B7115, See attachments & the following for project information. The Bowling Alley was constructed circa 1960, with an addition constructed circa 1981. The building is located at 398 Ave C, Dyess AFB, TX 79607.

2. EXISTING SITE CONDITIONS: Site verify existing conditions. The existing roof is a R-panel Roof, (refer to roof plan Area A in Appendix A) calculate to approximately 17,740

sf. The R-panels are showing signs of wear, nearing the end of their effective service life, and are beginning to leak. The wood shake shingle areas (Areas B, C, & D of Attachment A Roof Plan) are not included in the scope of this Task Order.

3. DESCRIPTION OF WORK:

a. Prepare affected areas for new finish by power washing, scraping, scrubbing, etc. to remove any loose, or damaged existing finish. Ensure final surface is clean and free from surface contaminates that would prevent new coating adherence, in accordance with coating manufacturer’s instructions. Contain all material removed due to surface preparations, and dispose of the material off-base, and in accordance with all local, state and federal regulations. Do not allow the material to be disposed of to contaminate the site or migrate off site. If the membrane manufacturer requires a primer, apply and allow to cure for the recommended time prior to installing the polyurea system.

b. Coat existing roof with seamless, aluminized polyurea spray-on, two-component roofing system to 80 mil according to manufacturer’s requirements. Refer to Attachment C, 09 90 00.50. Coating shall extend to the roof edge.

c. Unless otherwise indicated to be salvaged, reused, or reinstalled, the Government does not wish to retain any item indicated to be removed.

d. Provide the government with an accurate accounting of C&D haul off waste weight for environmental records.

e. Contractor lay-down area shall be approved by the Contracting Officer.

f. Contractor shall hoist, crane, or chute all materials to and from the roof from the exterior. Damage to existing building & grounds shall be repaired with matching materials by the contractor.

4. PERFORMANCE PERIOD: 90 calendar days.

5. GOVERNMENT FURNISHED ITEMS: Field verification is required. Restroom access is not available, Contractor must provide temporary facilities. Power access via contractor-provided extension cords may be available, if coordinated with facility manager, otherwise, it

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is recommended contractor provide necessary power generation. Contact Contracting Officer for any other required Government furnished items.

6. PHASING REQUIREMENTS: Protect the facility by phasing the roof repair work so that the repairs are not left open to the elements at the end of each workday.

All facilities will remain entirely occupied and operational during execution of this task order.

Coordinate roof repairs phasing with facility manager. Special care shall be taken to prevent construction materials, OSHA barriers, or other debris from falling / blowing onto the ground.

Photography may be restricted or prohibited.

7. ATTACHMENTS: This SOW includes the following Attachments:

A. Project Location, Roof Plan, As-Built drawings

B. Existing Condition Photos

C. Specification – 09 90 00.50 Aluminized Polyurea Roof Coating System

D. Price Schedule

*** END OF SCOPE OF WORK ***

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ATTACHMENT A

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ATTACHMENT B

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ATTACHMENT C

Section 09 90 00.50 Dyess AFB, Texas Aluminized Polyurea Roof Coating

Section Title – Section 09 90 00.50 - page 1 of 4

PART 1.0 – GENERAL

1.1 APPLICABLE PUBLICATIONS: The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only. All publications shall be the latest in effect on the date of solicitation. The Contractor shall comply with all Federal, State, and local regulations.

ASTM D 412 Standard Test Methods for Vulcanized Rubber and Thermoplastic

Elastomers - Tension

ASTM D 2240 Standard Test Method for Rubber Property – Durometer Hardness

ASTM D 903 Standard Test Method for Peel or Stripping Strength of Adhesive Bonds

ASTM D 624 Standard Test Method for Tear Strength of Conventional Vulcanized

Rubber and Thermoplastic Elastomers

ASTM E 96 Standard Test Methods for Gravimetric Determination of Water Vapor

Transmission Rate of Materials

1.2 GENRAL REQUIREMENTS: Applying spray-applied, 1:1 two-component fast set, fully adhered, seamless, aluminized polyurea roof coating system to a prepared roof.

1.3 SUBMITTALS: The following shall be submitted in accordance with AF Form 66 and Specification Section 01010 General Requirements, Paragraph 16.0 - Submittal Requirements:

1.3.1 Certificate of Compliance: Certificates shall include laboratory test reports showing that the

Polyurea components have been tested within the last twelve (12) months.

1.3.2 Descriptive Data: Manufacturer's descriptive data including backstop material, primer, and sealer shall be submitted for approval. Descriptive data for Aluminized Polyurea shall include shelf life, curing time, and mixing instructions for two component systems.

1.3.3 Samples: One 4” x 4” square, 80 mil thickness sample of the cured product, and a standard chart of available colors shall be submitted for approval.

1.4 ENVIRONMENTAL REQUIREMENTS: The ambient temperature shall be above 60 degrees F.

and at least 5 degrees above the dew point when the coating is applied.

1.5 DELIVERY AND STORAGE: Materials shall be delivered to the job in the manufacturer's original unopened containers. The containers shall include the following information on the label:

manufacturer, name of material, formula or specification number, lot number, color, date of manufacture, mixing instructions, shelf life, and curing time when applicable at the standard conditions for laboratory tests. Materials or components outdated as indicated by shelf life shall not be used. Materials shall be carefully handled and stored to prevent inclusion of foreign materials or exposure to temperatures below 60 degrees F. Avoid freezing temperatures. Store drums on wooden pallets to avoid direct contact with the ground. If stored for a long time, rotate Side A and Side B drums regularly. Do Not Open until ready for use. Both side A and side B containers must be fitted with a desiccant device during use.

Section Title – Section 09 90 00.50 - page 2 of 4

1.6 Manufacturer Qualifications:

1.6.1 The manufacturer must have a minimum of 10 years’ experience in manufacturing aluminized polyurea chemicals.

1.6.2 The material supplier must manufacture the chemicals for the membrane. Manufacturers supplying polyurea made by others are not acceptable.

1.7 Applicator Qualifications:

1.7.1 Applicator: The roofing system must be installed by an applicator authorized and trained by the manufacturer in compliance with shop drawings as approved by the manufacturer. The roofing applicator must be certified as a qualified applicator by the roof system manufacturer.

1.7.2 Provide an adequate number of experienced workers regularly engaged in this type of work who are skilled in the application techniques of the materials specified. Provide at least one thoroughly trained and experienced professional, supported by a written certification on the manufacturer’s letterhead and presented for the Contracting Officer’s consideration.

PART 2.0 – PRODUCTS

2.1 Materials: Shall conform to the respective specifications and other requirements specified. Each container brought to the jobsite with a different sealant formulation shall be marked for the intended use. For each intended use, the color shall be one of the manufacturer's standard colors as selected by the Contracting Officer.

2.2 Modified Polyurea Liner System suitable for roofing, liquid applied to a minimum of 80 mil coating thickness. The system is a 1:1 two-component system consisting of 100% solids capable of a fast set that adheres to metal, concrete, fiberglass and wood surfaces. Minimum density is to be 9 lbs./gallon.

2.3 Ultraviolet Weathering Resistance: The polyurea membrane exceeds 41,580 kJ/m2 under Xenon- Arc UV Light testing used for testing “Resistance to Outdoor (Ultraviolet) Weathering.” (ASTM D 4637 Specification requires a 7560 kJ/m2 minimum total radiant exposure at 70 W/m2 irradiance at 176°F black panel temperature to pass.) The membrane shall show no visible signs of cracking or crazing.

2.4 Membrane Color: Membrane color selection will be made from manufacturer’s standard colors, the color chart to be submitted to the Contracting Officer.

2.5 Membrane Properties: Fast set, liquid-applied, two-component, spray-on, aluminized polyurea system that meets the following testing standards:

ASTM D-2240 for hardness: 85 +/- 5, Shore A

ASTM D-412 for elongation: 225% +/- 50

ASTM D-412 for tensile strength: 2000 +/- 200 PSI

ASTM D-624 for tear resistance: 250 +/- PLI

Section Title – Section 09 90 00.50 - page 3 of 4

ASTM E-96 for permeability: >0.02 perm in.

Recoat time: 0-12 hours

2.5.1 Upon completion of the installation, the applicator shall arrange for an inspection by a technical representative of the membrane manufacturer to identify any needed corrective repairs required for warranty issuance. Notify the Contracting Officer seventy-two (72) hours before the manufacturer’s final inspection.

2.5.2 Inspectors: shall be employed and trained by the manufacturer and have received product-specific training from the manufacturer of the products.

PART 3.0 – EXECUTION

3.1 SURFACE PREPARATION

3.1.1 General: All components of the specified roofing system shall be the manufacturer's products or accepted by the manufacturer as compatible. Unless otherwise approved by the Contracting Officer and accepted by the membrane manufacturer, all products must be approved by the manufacturer and covered by the warranty.

3.1.2 Concrete and Masonry Surfaces: Where surfaces have been treated with curing compounds, oil, or other such materials, the materials shall be removed by sandblasting or wire brushing. Laitance, efflorescence and loose mortar shall be removed from the joint cavity. Ensure prepared surface is free of moisture, oils, debris,

3.1.3 Steel Surfaces: Steel surfaces to be in contact with aluminized polyurea shall be pressure washed or, if pressure washing would not be practical or would damage adjacent finish work, the metal shall be scraped and wire brushed to remove loose mill scale. Protective coatings on steel surfaces shall be removed by pressure washing or by a solvent/cleanser that leaves no residue. Prepare roofing surfaces to meet the requirements of the aluminized polyurea coating manufacturer to ensure full bonding with the roof.

3.2 APPLICATION:

3.2.1 Material Safety Data Sheets (MSDS) must always be on location while transporting, storing, and applying materials.

3.2.2 When loading materials onto the roof, the manufacturer’s authorized roofing applicator must comply with the Contracting Officer’s requirements to prevent overloading and possible disturbance to the building structure.

3.2.3 Proceed with roofing work only when weather conditions comply with the manufacturer’s recommended limitations and when conditions permit the work to proceed according to the manufacturer’s requirements and recommendations.

3.2.4 Proceed with work so that new roofing materials are not subject to construction traffic. When necessary, new roof sections shall be protected and inspected upon completion for possible damage.

Section Title – Section 09 90 00.50 - page 4 of 4

3.2.5 The surface on which the insulation or roofing membrane is to be applied shall be clean, smooth, dry, and free of projections or contaminants that would prevent proper application of or be incompatible with the new installation, such as fins, sharp edges, foreign materials, oil, and grease.

3.2.6 New roofing shall be complete and weathertight at the end of the workday.

3.2.7 On phased roofing, when the completion of flashings and terminations is not achieved by the end of the workday, a daily seal must be performed.

3.2.8 Furnish a minimum 80 Mils of the aluminized polyurea.

3.2.9 Contractor must provide all incidental items required for complete, fully functional membrane installation, including paper masking tape, backstops, and primer.

3.3 WARRANTY:

3.3.1 Provide manufacturer’s 15-year Total System Warranty covering labor and all materials with no dollar level. Certification is required with bid submittal.

3.3.2 Pro-rated System Warranties shall not be accepted.

3.3.3 All components of the specified roofing system shall be the manufacturer's products or accepted by the manufacturer as compatible and covered by the warranty.

3.4 ADHESIVES, CLEANERS, AND SEALANTS

3.4.1 The manufacturer shall approve all products, specifically formulated for the intended purpose.

4 CLEAN UP:

4.1 Perform daily clean-up to collect all wrappings, empty containers, paper, and other debris from the project site. Upon completion, all debris and refuse must be disposed of off-base in accordance with all Federal, State, and local regulations.

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ATTACHMENT D

Attachment D Coat Bowling Alley Roof, B7115

PRICING SCHEDULE FNWZ 25-0144

Attachment D – Pricing Schedule

0001 Base Pricing - Item 1 – Coat Bowling Alley Roof B7115, FNWZ 25-0144 (SUSTAINMENT) This item includes all survey, layout, plant, labor, supplies, equipment, materials, supervision and incidentals required to complete all SUSTAINMENT work in compliance with the Statement of Work and terms & conditions of the contract for Replace Roof B7115, FNWZ 25-0144.

1 LS $________________________

CONTRACT PERFORMANCE TIME:

1. The Contractor will have a limited number of calendar days to complete the project and reach the

Beneficial Occupancy Date (BOD). Once the BOD is complete, the Contractor will have 90 days to complete all the Closeout Documentation.

2. Liquidated damages of $368.92 per day, per facility may apply after expiration of Performance Period until BOD is achieved.

3. 10 weather days have been included in each CLIN for the Construction portion of the project. Additional time for weather-related delays will be site verified & granted by the Contracting Officer on a daily basis when weather affects the critical path.