Statement_of_Work_dated_27_June_2017_-_Repair_Roof_at_50FTS.docx

Attachment 1

STATEMENT OF WORK

FOR

REPAIR ROOF AT 50FTS, B216

OPP#1054779

27 June 2017

I. PROJECT INFORMATION GENERAL SCOPE

A. The Contractor shall provide all plant, labor, equipment, transportation, and tools necessary to prepare and install a protective coating system on the existing metal roof of Building 216, on Columbus Air Force Base. The protective coating shall be comprised of products of ASTEC® Re-ply or an approved equal product. Perform all work according to this Statement of Work (SOW) and all related AF requirements and other codes and references.

II. DESIGN

A. Verify constructability and suitability of SOW. Contractor shall field-verify all information related to existing conditions including: dimensions, calculations and code requirements for all elements of work. Contractor is responsible for all remaining design to provide Construction Documents that are in accordance with both statement and intent of SOW and are acceptable to the Government. Contractor shall provide 95% and 100% Design Submittals for review, comment and approval by CAFB. As determined by CAFB and usually within two weeks after each design submittal, the contractor shall engage in a design conference at 14CES.

B. Design Submittals shall include at a minimum the following Construction Documents (CD) or CD elements:

1. Color and Materials: Samples as well as fixtures of all materials and equipment shall be included in the 95% and 100% submittals. The submittals shall be provided to the government prior to the start of work.

III. OUTLINE of WORK

Provide all design and construction necessary to…

A. General Design & Construction Requirements:

1. Basic Items of work are as follows:

a. The components of the coating system shall be products of ASTEC® Re-Ply™ or products approved as compatible and approved as equivalent. The burden of proof of equivalency shall be upon the contractor. The testing of the coating system shall be done using guidelines under ASTM-D6083, “Standards Specification for Liquid Applied Acrylic Coating Used in Roofing”.

b. The roof coating composition of products shall be as follows, or of products approved as equal:

1. ASTEC® Re-Ply™ #4000 Surface Conditioner (Required in Chalky surface Conditions) is a concentrated acrylic emulsion sealer formulated to lock down chalky reissue or efflorescence remaining after proper pressure washing. It weighs 9.5 lbs per gallon, with a solids content of 58% by weight/54% per volume. The coverage rate is set at 200-300 square feet per cut gallon, and must attain a Dry Film Thickness (DFT) of 1-2 mils. It is a water based (NON-toxic) solvent and is non-flammable. Its average dry time, at 75⁰F is 1-2 hours touch dry, 48 hours full dry, 21 days full cure.

2. ASTEC ® Re-Ply™ B-16-71 Rust Primer (Required in Corrosion Conditions) is a triple action, industrial strength rust inhibitor and metal primer that is environmentally safe. It has exceptional adhesion to aluminum, galvanized steel, and chromate treated steel. It is intended for use in roofs and walls, especially on deeply pitted rust areas. This product should be top coated with an ASTEC finish product to extend protection from ultraviolet and environmental degradation. This product is composed of a waterborne acrylic containing three rust inhibitors. One prevents flash rust, and the other two control and convert active corrosion into stable compounds to help maintain a structurally sound substrate. It weighs 10.8 lbs per gallon, with a solids content of 46% by weight/ 37% by volume. The coverage rate is set at 74-148 square feet per gallon. The prime pigments are Barium, Sulfates, and Calcium Zinc Molyb. It is water based solvent and is V.O.C. compliant. The flash point is 200°F. Its average dry time, at 75°F is 2-8 hours touch dry, and 24 hours to recoat.

3. ASTEC ® Re-Ply™ WPM #9 Waterproof Membrane is a fluid applied membrane which dries to a tough yet flexible and monolithic surface that does not permit the passage of water. It is intended for use on roofs and walls, especially over seams, fasteners, joints, flashings, intrusions, and repairs. This product is intended as a base coat to be covered with an ASTEC ceramic coating for extended protection from ultraviolet degradation. It is a 100% acrylic resin reduced with water. It weighs 11.1 lbs per gallon, with a solids content of 60% by weight/ 51% by volume. The coverage rate is set at 82 square feet per gallon with a final Dry Film Thickness (DFT) of 10 mils. The elongation break is 683%, and has an overall tensile strength of 792 pounds per square inch. It is a water based solvent, with the prime pigments being titanium. It has no flash point, as it is not flammable. Its average dry time, at 75°F is 1-2 hours touch dry, 48 hours full dry, and 21 days full cure.

4. ASTEC ® Re-Ply™ WPM #9 Bush and Roll Grade Waterproof Membrane is essentially the same product as the WPM #9, except a thickening agent has been added to give it a stiffer consistency which is more effective for certain caulking and waterproofing uses, such as for embedded polycloth fabric to reinforce the sealing of seams, protrusions, and repair areas. It dries to the same liquid applied tough and flexible, monolithic waterproof membrane as the WPM #9. It is intended to be used as a base coat to be covered with an ASTEC ceramic coating for extended protection from ultraviolet and environmental degradation. It weighs 11.1 lbs per gallon, with a solids content of 60% by weight/ 51% by volume. Its coverage rate is set at 82 square feet per gallon with a Dry Film Thickness of 10 mils. The elongation break is 683%, and has an overall tensile strength of 792 pounds per square inch. It is a water based solvent, with the prime pigments being titanium. It has no flash point, as it is not flammable. Its average dry time, at 75°F is 1-2 hours touch dry, 48 hours full dry, and 21 days full cure.

5. ASTEC ® Re-Ply™ WPM #10 Fibered Waterproof Membrane is a fluid applied acrylic formula, with high solids and fiber which dries to a tough, yet flexible and monolithic membrane that does not permit the passage of water. It is intended for use on roofs and walls, especially over seams, fasteners, joints, flashings, intrusions, and repairs. This product is intended as a base coat to be covered with an ASTEC finishing coat for extended protection from ultraviolet and environmental degradation. It weighs 13.5 lbs per gallon, with a solids content of 69% by weight/ 65% by volume. Its coverage rate is set at 25 square feet per gallon with a final Dry Film Thickness (DFT) of 40 mils. It is water based solvent with a permeance of 27.8 and a titanium prime pigment. Its average dry time, at 75°F is 1-2 hours touch dry, 48 hours full dry, and 21 days full cure.

6. ASTEC ® Re-Ply™ #2000 Protective Finish Coat is a fluid applied high solids acrylic formula that cures to form a monolithic membrane having superior strength and weatherablility. The quality resins used provide a very reflective and flexible coating having very high tensile strength. These characteristics provide both increased performance and extended longevity. This product is designed to protect the entire roofing system, but because of the advanced resins and pigments used, it will also protect the other systems and materials as well. The resins used maximize both adhesion and flexibility, while at the same time increasing performance throughout the warranty term. The weight per gallon is 13.5 lbs per gallon, with a solids content of 69% by weight/ 65% by volume. The coverage rate is set at 66-67 square feet per gallon with a final Dry Film Thickness (DFT) of 15-16 mils. It is water based solvent, with the primary pigments being titanium. Its average dry time, at 75°F is 1-2 hours touch dry, 48 hours full dry, and 21 days full cure.

c. A fifteen-year warranty on materials, labor, and worksmanship for this project shall be provided from the contractor to the government, to provide necessary maintenance and correction of deficiencies during the time following contract completion. The commercial warranty will be issued to the government at the conclusion of the project. If the manufacturer offers a warranty beyond the 15-year warranty, the additional warranty and warranty options shall be transferred to the government.

d. The contractor shall ensure the seal provided by this construction project extends to seal all existing roof penetrations.

e. The contractor shall ensure that the coating provided resistance to thermal expansion, such that the seal may be provided to the lap joints of the standing seam metal roof, to prevent leaks.

f. Color and Materials selection are to be made by the Base Architect. If a product other than the ones specified in this Statement of Work are submitted, the burden of proof of equality of the specified product shall be upon the contractor.

g. The contractor shall use best management practices to prevent damage to government property surrounding Building 216 due to drift damage, over-spray, or other impacts of construction operations. Building 216 is located in close proximity to the aircraft parking apron and in close proximity to aircraft.

h. The contractor must protect all materials in laydown area that can contaminate stormwater. A stormwater permit may be required if multiple laydown yards or concurrent activities add up to 1 acre or greater. Installation stormwater protection applied. The contractor must also be in compliance with all environmental regulation, to include CATEX A.2.3.10.

i. The contractor shall ensure storage of the coating materials in a dry area, with temperatures within the acceptable tolerances of the manufacturer’s recommendations. For ASTEC ® Re-Ply™, the temperatures must be over 40⁰ F.

j. Prepare the site to prevent damage to the coating until completely installed and cured.

k. Inspect existing roof surface to ensure the roof surface is clean, dry, and free of leaks. Prepare the roof surface by replacing and adequately tightening all fasteners, screws, and other fastening devices. Pressure wash the roofing surface to ensure it is free of dirt, debris, and other contaminants. Control and dispose of all waste of this process, to include the water.

l. Ensure that the roof surface is dry before the application of the protective coating system, and that the ambient temperature is at least 50⁰F and rising, and stays above 40⁰F long enough for the coating to cure.

m. If the roof surface had previously received a coating prior to the installation of the coating system specified in this Statement of Work, apply ASTEC #4000 surface conditioner, or an approved equal product, prior to applying ASTEC ® Re-Ply™ coating, or an approved equal product. Application rate of the surface conditioner must be 200-250 square feet per gallon and given 2 hours to dry before the application of additional coatings. The surface must be dry, clean, and free of oils and grease. Remove loose particles, efflorescence, and other foreign materials by pressure washing or other effective means. If pressure washing is not the chosen course of action, the contractor shall submit a plan stating their chosen method for evaluation prior to implementation. Remove mildew with a solution of household bleach (1 part bleach to 3 parts water). After 30 minutes to 1 hour, rinse thoroughly with water. The waste from this process must be captured and disposed of properly, in accordance with environmental regulations, and all state, local, and federal regulations.

n. Rust must be removed where present on the roofing surface and then primed with at least two coats of B-16-71 Metal Primer, or an approved equal product. The coverage must attain a dry film thickness of 6 mils, and must cover 300 square feet per gallon per coat.

o. Ensure a watertight seal around all fasteners with the application of WPM #9 B&R waterproofing membrane, or an approved equal product.

p. At the location of all horizontal seams, joints, protrusions, vents, and flashing, use 4” wide reinforcing fabric embedded in 8” wide wet coat of WPM #9 B&R waterproofing membrane, or an approved equal product. The fabric must be applied with a roller or brush to avoid gaps between the materials and the roof surface, and wrinkles in the materials. Apply a second coat of reinforcing fabric and WPM #9 B&R, or an approved equivalent product. This second coat must overlap each side of the previously applied coat by 2”. Apply the coats at a rate of 82 square feet per coat, and achieve a final thickness of at least 12 mils.

q. At the locations of all vertical seams, use 2” wide reinforcing fabric embedded in a 4” wide wet coat of WPM #9 B&R waterproofing membrane, or approved equivalent product. The fabric must be applied with a roller or brush to avoid gaps between the material and the roof surface, and wrinkles in the material. Then apply a second coat of reinforcing fabric and WPM #9 B&R, or approved equivalent material. This second coat must overlap each side of the previously applied coat by 1”. Apply the coats at a rate of 82 square feet per gallon per coat, and achieve a final thickness of at least 12 mils.

r. Spray apply 2 coats of ASTEC ® Re-Ply™ #2000 Finish to the entire roof, using commercial airless spray equipment. The second coating must be applied in the opposite direction, achieving a final Dry Film Thickness of 18 mils. The application coverage rate must be 100 square feet per gallon per coat.

s. After cure of finishing coating, inspect protective roof coating to ensure quality of installation.

t. At the conclusion of the project the Contractor will be responsible to complied and furnish the CO, DD Form 1354, “TRANSFER AND ACCEPTANCE OF MILITARY REAL PROPERTY”, indicating all costs and quantity data of materials and systems furnished and installed. A draft of DD 1354 showing a list of items for which the costs and quantity data is required will be furnished to the Contractor. The completed DD 1354 will be turned into the CVO on the date of final inspection. DD Form 1354 itself will be provided by the CO.

IV. SCHEDULING

Construction work must not disturb the ongoing operations of the existing building. Coordinate interior work in the existing building with CEPM. The government does not anticipate significant amounts of work required during other than normal business hours to meet project schedule. The government may, at its sole discretion and on a case-by-case basis, require Contractor to perform certain tasks during nights or weekends. These will typically be limited in nature, and will normally include work that impacts base mission, populace, and traffic in a negative way. Examples of work that may fall into this category include but are not limited to: utility outages, short-term closure of major roads or gates, or hazardous material abatement in occupied facilities.

The period of performance shall be 50 days from the government’s issuance of the Notice to Proceed (NTP).

V. AIRFIELD WORK

The work will be done on or near an active airfield and special considerations apply for vehicle traffic control and work within the vicinity of the airfield. A FOD control plan must be established and maintained at all times. Vehicle operators must be trained on flight line driving procedures prior to entering the airfield. Disruptions to airfield activities must be scheduled with the Government in advance. The airfield is a controlled area, contractor shall comply with CAFB controlled area procedures.

VI. GOVERNMENT FURNISHED EQUIPMENT OR MATERIALS

The Government will not furnish any equipment or materials.

VII. OTHER

1. The Contractor shall immediately notify the Contracting Officer and secure any documents found with classified, “For Official Use Only” (FOUO) or personal information. The Contracting officer will direct disposition of these documents.

2. A Form 66 (attached) submittal is required.

3. Provide safe work area including adequate lighting and required noise protection while personnel are engaged in work. No hazardous materials are anticipated to be associated with this project. Contractor shall install proper construction markings and tape during work in progress. Contractor shall maintain a hazard free work area during operations. Upon receipt of Notice to Proceed, contractor shall notify the Contracting Office prior to starting any work.

4. Contractor shall maintain up-to-date red-line AS Built drawings of all field changes throughout construction and provide final construction As-Built drawings prior to final acceptance by the Government.

5. Contractor shall provide Contracting Officer prior notice to starting any work that may affect any building function.

END OF STATEMENT OF WORK