ATTACHMENT_1_-_STATEMENT_OF_WORK,_PROJECT___MHMV-182507_DATED_13_JULY_2018.pdf

Statement of Work

1062 Re-Roof 2018

PROJECT LOCATION

New Mexico Air National Guard

2251 Air Guard Drive S.E.

Kirtland AFB, NM 87117

WORK REQUEST #

201801331

PROJECT #

MHMV182507

13 July 2018

Statement of Work 1062 Re-Roof 2018

1. Scope of Work: The work covered by this specification consists of furnishing all labor, equipment and material and performing all work to accomplish at a minimum what is described in paragraph 7 (PRINCIPAL FEATURES) - from proper sizing, demolition to installation and manufacturer requirements.

The Contractor is encouraged to propose their most cost efficient solution to best meet the requirements of the Statement of Work.

2. All construction shall be in strict accordance with the Statement of Work, preliminary drawings and subject to the terms and conditions of the awarded contract. Contractors will field verify all dimensions and existing utilities. Government estimates 45 calendar days for completion of this project.

3. Location: The work is to be accomplished on the New Mexico Air

National Guard complex located at Kirtland AFB.

4. Work Week: The contractor shall do all coordination and work during the regular work week being observed by the 150th Civil Engineer Squadron, which is 6:30 am to 5:00 pm, Monday through Friday. Any deviation from this schedule will require 24 hours advance notice and approval of the Contracting Officer.

5. MILITARY INSTALLATION REQUIREMENTS:

A. The Contractor is responsible for the collection and disposal of all debris, rubble, residue and waste material generated in the performance of work under this contract. All such materials shall be disposed of at an off base landfill by the CONTRACTOR or location specified by USAF Engineering personnel. The CONTRACTOR is not permitted to deposit any such materials in base trash collection containers or at any on base location without prior approval of the Contracting Officer.

B. Hazardous Materials: Materials classified as hazardous by US environmental rules, regulations, or laws, shall be handled and processed for disposal in accordance with those rules, regulations, or laws. The CONTRACTOR is responsible for all such materials that are residue from CONTRACTOR furnished supplies and materials which were brought to the job site by the CONTRACTOR, and for any such materials identified herein.

C. The CONTRACTOR shall coordinate the work of subcontractors and shall ensure the coordination of the work between the various trades. In many instances the contract drawings indicate only the general location and arrangement of equipment, fixtures, piping, conduit, or outlets and may not in all cases show, identify or detail all materials or components that are necessary, usual and customary for proper installation, connection or attachment. The CONTRACTOR shall study, examine, and evaluate the existing plans on file at the 150th CES office to establish the work, coordination, or materials required and necessary to provide a product complete in the usual and customary manner, and shall provide for all such requirements as though expressly detailed herein or on the drawings.

6. WORKPLACE SAFETY: The Contractor is responsible for the safety of his workers and the safety of all personnel with the 150th Air National Guard. Contractor to meet all of the most recent safety codes and regulations at all times. Care should be taken with all vehicles both when backing (using a spotter to watch for obstructions and personnel) and in the performance of all work. Care shall be taken both during work hours cordoning the work site and securing the work site at the end of each work day. The Contractor shall provide, in writing, a comprehensive safety plan for the Contracting Officer upon the commencement of work. The Contracting Officer’s Representative (COR) reserves the right to halt progress of work if unsafe workplace practices are found and until they are addressed to his satisfaction. Random inspections by the 150th SOW Ground Safety will be conducted.

7. PRINCIPAL FEATURES: The work covered by this contract includes, but is not limited to the following:

A. DEMOLITION:

1) This Project consists of the removal and replacement of the flat roof and flashing on Building 1062, at Kirtland AFB, NM.

B. REFRENCES:

1) Contractor at a minimum must meet the following codes/Specifications.

-AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI/SPRI ES-1 (2003) Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems

- AMERICAN SOCIETY OF SAFETY ENGINEERS (ASSE/SAFE)

ASSE/SAFE A10.24 (2014) Roofing - Safety Requirements of

Low-Sloped Roofs.

-ASTM INTERNATIONAL (ASTM) ASTM D4263 (1983; R 2012)

Indicating Moisture in Concrete by the Plastic Sheet Method ASTM D4434/D4434M (2015) Standard Specification for Poly (Vinyl Chloride) Sheet Roofing ASTM D6754/D6754M (2010) Standard Specification for Ketone Ethylene Ester Based Sheet Roofing ASTM E108 (2011) Fire Tests of Roof Coverings FM GLOBAL (FM) FM 4470 (2010) Single-Ply, Polymer-Modified Bitumen Sheet, Built-up Roof (BUR), and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

-INTERNATIONAL CODE COUNCIL (ICC) ICC IBC (2018)

International Building Code.

-NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA 3619 (2004) Quality Control Guidelines for Application of Polymer-Modified Bitumen Roofing NRCA 3740 (2005) The NRCA Waterproofing Manual.

-SINGLE PLY ROOFING INDUSTRY (SPRI) ANSI/SPRI RD-1

(2014) Performance Standard for Retrofit Drains.

C. ASSEMBLY REQUIREMENTS:

1) Roofing membrane sheet widths shall be consistent with membrane attachment methods and wind uplift requirements, and shall be as large as practical. In order to minimize joints and 3-way overlaps, prefabricated sheets are not accepted. Provide membrane which is free of defects and foreign material. Coordinate flashing work to permit continuous roof-surfacing operations. Insulation shall be applied and weatherproofed on the same day.

D. WIND UPLIFT RESISTANCE:

1) The complete roof system assembly shall be rated and installed to resist wind loads calculated in accordance with ASCE 7 and validated by uplift resistance testing in accordance with Factory Mutual (FM) test procedures. Do not install non-rated systems, except as approved by the Contracting Officer.

2) The entire roofing and flashing system shall be in accordance with specified and indicated requirements, including fire and wind resistance.

C. HANDLING:

1) Prevent damage to edges and ends of roll materials. Do not install damaged materials in the work. Select and operate material handling equipment to prevent damage to materials or applied roofing.

D. ENVIRONMENTAL REQUIREMENTS:

1) Do not install roofing system when air temperature is below 40 degrees F, during any form of precipitation, including fog, or when there is ice, frost, moisture, or any other visible dampness on the roof deck. Follow manufacturer's printed instructions for Cold Weather Installation.

E. SEQUENCING:

1) Coordinate the work with other trades to ensure that components which are to be secured to or stripped into the roofing system are available and that permanent flashing and counter flashing in accordance with NRCA 3740, are installed as the work progresses.

Ensure temporary protection measures are in place to preclude moisture intrusion or damage to installed materials. Application of roofing shall immediately follow application of insulation as a continuous operation. Coordinate roofing operations with insulation work so that all roof insulation applied each day is covered with roof membrane installation the same day.

F. PVC ROOF MEMBRANE:

1) Provide a minimum polymer thickness 1.8 mm 0.072 inch reinforced PVC as specified herein. Provide PVC system capable of obtaining 20 year warranties at a minimum and as listed in the applicable wind uplift and fire rating classification listings.

A. Coordinate with other specification sections related to the roof work. Furnish a combination of specified materials that comprise a roof system acceptable to the roof membrane manufacturer and meeting specified requirements. Provide materials free of defects and suitable for the service and climatic conditions of the installation. All warranted roof system components shall be sourced from the PVC roof membrane manufacturer, including but not limited to all insulation, coverboards, accessories, adhesives and edge metal.

B. Furnish a photoengraved 1 mm 0.032 inch thick aluminum card for exterior display. Card shall be 215 by 275 mm 8 1/2 by 11 inches minimum. Information card shall identify facility name and number; location; contract number; approximate roof area;

detailed roof system description, including deck type, membrane, number of plies, method of application, manufacturer, insulation and cover board system and thickness;

presence of tapered insulation for primary drainage, presence of vapor retarder; date of completion; installing Contractor identification and contact information; membrane manufacturer warranty expiration, warranty reference number, and contact information. Install card at roof top or access location as identified by the COR and provide a paper copy to the Contracting Officer.

G. BONDING ADHESIVE:

1) Provide PVC membrane manufacturer's membrane adhesive, as supplied by roof membrane manufacturer, and recommended by the manufacturer's printed data for bonding of PVC membrane materials to acceptable insulation, wood, metal, concrete or other acceptable substrate materials. Bonding adhesive shall not be used to bond membrane materials to each other.

H. WATER CUTOFF MASTIC/WATER BLOCK:

1) As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

I. MEMBRANE FLASHING:

1) Membrane flashing, including self-adhering membrane flashing, perimeter flashing, flashing around roof penetrations and prefabricated pipe seals, shall be minimum polymer thickness 1.8 mm 0.072 inch reinforced PVC for 20year warranties, and shall be utilized as recommended and supplied by the roof membrane manufacturer or minimum 1.8 mm 0.072 inch thick reinforced PVC roof membrane and flashing's for 20 year warranties.

J. MEMBRANE FASTENERS AND PLATES:

1) Coated, corrosion-resistant fasteners as recommended and supplied by the PVC roof membrane manufacturer and meeting the requirements of FM 4470 and FM RoofNav (www. roofnav.com) or FM APP GUIDE for Class I roof deck construction and the wind uplift resistance specified by manufacturer. Fasteners and Plates to be supplied and warranted for the substrate type(s) by PVC membrane manufacturer and recommended by PVC membrane manufacturer's printed data.

K. AUXILIARY FASTENERS:

1) Corrosion resistance screws, nails, or anchors must be suitable for intended attachment purpose and be recommended and supplied for use by the PVC roof membrane manufacturer.

L. ROOF INSULATION:

1) Insulation system and facer material shall be compatible with membrane application specified and be approved and supplied by the PVC membrane roof manufacturer.

M. APPLICATION METHOD:

1) Do not dilute coatings or sealants unless specifically recommended by the material manufacturer's printed application instructions. Do not thin liquid materials or cleaners used for cleaning PVC sheet.

Keep liquids in airtight containers, and keep containers closed except when removing materials. Use liquid components, including adhesives, within their shelf life period. Store adhesives at 60 to 80 degrees F prior to use. Avoid excessive adhesive application and adhesive spills, as they can be destructive to some thermoplastic sheets and insulations; follow adhesive manufacturer's printed application instructions. Mix and use liquid components in accordance with label directions and manufacturer's printed instructions. Provide clean, dry cloths or pads for applying membrane cleaners and cleaning of membrane. Do not use heat guns or open flame to expedite drying of adhesives or primers.

Require workmen and others who walk on the membrane to wear clean, soft-soled shoes to avoid damage to roofing materials. Do not use equipment with sharp edges which could puncture the PVC membrane roofing sheet. Shut down air intakes and any related mechanical systems and seal open vents and air intakes when applying solvent-based materials in the area of the opening or intake. Coordinate shutdowns with the COR. Provide a watertight roof membrane sheet free of contaminants and defects that might affect serviceability. Provide a uniform, straight, and flat edge. Only felt-backed membrane shall be placed directly on concrete deck or other hard surface which may otherwise damage the membrane, absent the felt backing. Non-felt-backed PVC membrane roofing sheet shall not be placed directly on concrete deck or other hard surface which may damage the membrane. Membrane shall be overlapped a minimum of 75 mm 3 inches at sides for adhered applications and 140-180 mm 5.5-7 inches for mechanically fastened applications and minimum 100 mm 4 inches at ends.

Direction of laps shall allow water to flow over and not against the lap. Membrane joints shall be free of wrinkles and fishmouths. The entire length of hot-air-welded seams shall be probe-tested and corrected during the day of installation. Defective areas shall be re-welded. Wrinkles, fishmouths, or damaged areas shall be cut out and the area covered with membrane using a continuous hot-air-welded seam on all sides. Repairs shall be probe-tested for continuity. Hot-air-welded seams are to be accomplished in accordance with the PVC membrane roofing manufacturer's published requirements.

N. FLASHING:

1) Provide flashings in the angles formed at walls and other vertical surfaces and where required to make the work watertight. Roof edges, projections through the roof and changes in roof planes shall be flashed. The seam shall be sealed a minimum of 3 inches beyond the fasteners which attach the membrane to nailers. The installed flashing's shall be secured at the top of the flashing a maximum of 12 inches on centers under the counterflashing or cap.

Where possible, prefabricated components shall be used for pipe seals and flashing accessories. Install flashing and flashing accessories as the roof membrane is installed. Apply flashing to cleaned surfaces and as recommended by the roof membrane manufacturer and as specified. Utilize cured PVC membrane flashing and prefabricated accessory flashings to the maximum extent recommended by the roof membrane manufacturer. Limit uncured flashing material to reinforcing inside and outside corners and angle changes in plane of membrane, and to flashing scuppers, pourable sealer pockets, and other formed penetrations or unusually shaped conditions as recommended by the roof membrane manufacturer where the use of cured material is impractical. Extend base flashing not less than 8 inch above roofing surface and as necessary to provide for seaming overlap on roof membrane as recommended by the roof membrane manufacturer.

O. FLASHING AT ROOF DRAIN:

1) Provide a tapered insulation sump into the drain bowl area. Do not exceed tapered slope of (4:12) 18 degrees for unreinforced membrane and (1:12) 5 degrees for reinforced membrane. Provide tapered insulation with surface suitable for adhering membrane in the drain sump area. Avoid field seams running through or within 24 inches of roof drain, or as otherwise recommended by the roof membrane manufacturer. Adhere the membrane to the tapered insulation in the drain sump area. Apply water block mastic and extend membrane sheets over edge of drain bowl opening at the roof drain deck flange in accordance with membrane manufacturer's printed application instructions. Insure membrane free of wrinkles and folds in the drain area. Securely clamp membrane in the flashing clamping ring. Ensure membrane is cut to within 3/4 inch of inside rim of clamping ring to maintain drainage capacity. Do not cut back to bolt holes. Retrofit roof drains shall conform to ANSI/SPRI RD-1.

P. SEALING:

1) Seal flashing membrane for a minimum of 3 inch on each side of fastening device used to anchor roof membrane to nailers.

Completely adhere flashing sheets in place. Seam flashing membrane in the same manner as roof membrane, except as otherwise recommended by the membrane manufacturer's printed instructions and approved by the COR. Reinforce all corners and angle transitions by applying uncured membrane to the area in accordance with roof membrane manufacturer recommendations.

Mechanically fasten top edge of base flashing with manufacturer recommended termination bar fastened at maximum 12 inch on center. Install sheet metal flashing over the termination bar in the completed work. Mechanically fasten top edge of base flashing for all other terminations in a manner recommended by the roof membrane manufacturer. Apply membrane liner over top of exposed nailers and blocking and to overlap top edge of base flashing installation at curbs, parapet walls, expansion joints and as otherwise indicated to serve as waterproof lining under sheet metal flashing components.

Q. SET-ON ACCESSORIES:

1) Where pipe or conduit blocking, supports and similar roof accessories, are set on the membrane, adhere reinforced membrane or walkpad material, as recommended by the roof membrane manufacturer, to bottom of accessories prior to setting on roofing membrane. Specific method of installing set-on accessories must permit normal movement due to expansion, contraction, vibration, and similar occurrences without damaging roofing membrane. Do not mechanically secure set-on accessories through roofing membrane into roof deck substrate.

R. CORRECTION OF DEFICIENCES:

1) Where any form of deficiency is found, additional measures must be taken as deemed necessary by the Contracting Officer to determine the extent of the deficiency and provide corrective action recommendations. Perform corrective action as directed by the Contracting Officer.

S. MANUFACTURERS INSPECTION:

1) Manufacturer's technical representative shall visit the site a minimum of once per week during the installation for purposes of reviewing materials installation practices and adequacy of work in place. Inspections shall occur during the first 20 squares of membrane installation, at mid-point of the installation, and at substantial completion, at a minimum. Additional inspections need not exceed one for each 100 squares of total roof area with the exception that follow-up inspections of previously noted deficiencies or application errors shall be performed as requested by the Contracting Officer. After each inspection, a report, signed by the manufacturer's technical representative shall be submitted by the roofing Contractor to the Contracting Officer within 3 working days.

The report shall note overall quality of work, deficiencies and any other concerns, and recommended corrective action.

T. CLEAN UP:

1) Remove debris, scraps, containers and other rubbish and trash resulting from installation of the roofing system from job site each day.

U. ROOF DRAIN TEST:

1) After completing roofing but prior to Government acceptance, perform the following test for watertightness. Plug roof drains and fill with water to edge of drain sump for 8 hours. Do not plug secondary overflow drains at the same time as adjacent primary drain. To ensure some drainage from roof, do not test all drains at same time. Measure water at beginning and end of the test period.

When precipitation occurs during test period, repeat test. When water level falls, remove water, thoroughly dry, and inspect installation; repair or replace roofing at drain to provide for a properly installed watertight flashing seal. Repeat test until there is no water leakage.

8. QUALIFICATIONS: Manufacturer must have a minimum of 10 years’ experience in manufacturing PVC roofing products. Roofing system applicator must be approved, authorized, or licensed in writing by the PVC sheet roofing system manufacturer and have a minimum of five years’ experience as an approved, authorized, or licensed applicator with that manufacturer and be approved at a level capable of providing the specified warranty and will submit qualifications to COR before work commences.

9. QUALITY CONTROL: The contractor will develop and implement a quality control plan specific to this contract effort. Provide, for acceptance by the Contracting Officer, a Construction QC Plan submitted in a three-ring binder that includes a table of contents, with major sections identified with tabs, with pages numbered sequentially, and that documents the proposed methods and responsibilities for accomplishing activities during the construction of the project. Contractor's operational plan for accomplishing and reviewing work controls, fabrication controls, certifications, and documentation of quality control operations, inspections, and test records, including those for subcontractors. Furnish legible copies of the test and inspection records to the Contracting Officer. Ensure records cover work placement traceable to the contract schedule, specifications and drawings, and are verifiable.

10. OPERATION & MAINTENACNCE MANUALS: The contractor will submit all equipment manuals ensuring that they contain at a minimum the operating procedures, maintenance procedures, cut sheets, parts list, warranties, and detailed drawings for all equipment installed. A troubleshooting guide shall be included. The content of the manuals will be approved by the COR. Contractor will provide (3) hard copy sets of warranties and manuals to the COR before the contract is considered complete.

11. WARRANTY: Provide roof system material and workmanship warranties.

Provide revision or amendment to standard membrane manufacturer warranty as required to comply with the specified requirements. Minimum manufacturer warranty shall have no dollar limit, cover full system water-tightness, and shall have a minimum duration of 20 years. Furnish the roof membrane manufacturer's 20-year, no dollar limit roof system materials and installation workmanship warranty, including flashing, insulation, and accessories necessary for a watertight roof system construction. Provide warranty directly to the Government and commence warranty effective date at time of Government's acceptance of the roof work. The warranty must state that:

A. If within the warranty period the roof system, as installed for its intended use in the normal climatic and environmental conditions of the facility, becomes non-watertight, shows evidence of moisture intrusion within the assembly, splits, tears, cracks, delaminates, separates at the seams, or shows evidence of excessive weathering due to defective materials or installation workmanship, the repair or replacement of the defective and damaged materials of the roof system assembly and correction of defective workmanship are the responsibility of the roof membrane manufacturer. All costs associated with the repair or replacement work are the responsibility of the roof membrane manufacturer.

B. When the manufacturer or his approved applicator fail to perform the repairs within 72 hours of notification, emergency temporary repairs performed by others does not void the warranty.

12. TESTING: All equipment and product testing conducted during the course of construction is the responsibility of the contractor. The contractor shall ensure the testing procedures comply with manufacturers recommendations and be conducted by a manufacturer Representative when required. The contractor will review the final test reports with the COR prior to the acceptance/rejection of the work. A copy of all testing reports will be submitted to the COR.

13. WORK PLANNING: The contractor shall submit, to the Contracting

Officer or COR for approval, a weekly work plan schedule at least three days prior to schedule work. All base passes will be coordinated with the COR (3) days prior to needing access to the work site. Any delays to the contract due to poor coordination is the responsibility of the contractor.

One set of the complete redline drawings shall be submitted at the completion of the project.

14. DISPOSITION OF NONSALVABLE MATERIALS: Any waste generated by the contractor is the responsibility of the contractor and will not be left on government property, but will be dumped in an approved landfill.

15. Upon completion of work, contractor will notify the Contracting Officer’ and COR for final inspection.

16. All surplus government material generated as a result of construction and or maintenance is the property of the government. Its disposition will be determined as directed by the Contracting Officer.

17. All warranty and accompanying documentation will be turned over to the

Contracting Officer.