SOW_PJMS112190_Replace_Roof_Bldg_5110_and_Repair_LPS-FBO.doc

ROOF REPAIR AND REPLACEMETN OF BUILDING 5110

STATEMENT OF WORK

PROJECT NUMBER: PJMS11-2190

Base Engineer:

175 CES/CC

Using Agency:

175 MXS/MXMW

Fire Chief:

175 CES/CEF

Security Forces:

175 SFS/CC

Communications:

175 CF/CC

Environmental:

175 WG/EMO

Safety:

175 WG/SE

MARYLAND AIR NATIONAL GUARD

MARTIN STATE AIRPORT

NATIONAL GUARD BASE

BALTIMORE, MARYLAND 21220

23 JULY 2015

1.

General Project Information: BASE BID: Roof Replacement - Complete demolition of the existing low-slope built-up roof system and complete installation of a new thermoplastic polyolefin (TPO) single-ply roof system on Munitions Storage Segregated Magazine (Facility 5110). The roof area is approximately 3,087 sf. The existing Lighting Protection System (LPS) must be removed for the roof demolition/construction and then replaced as found. The Contractor is not required to provide lighting protection during construction .

1.1. Project Location and Background: Munitions (Facilities 5110) at Martin State Airport, Maryland Air National Guard Base, Baltimore, MD 21202.

1.2. Site Description: The Maryland Air National Guard, Martin State Airport National Guard Base has a workforce of over seventeen hundred full and part-time personnel, with facilities occupying one hundred and seventy five acres of property. The primary mission is to provide security to the nation and the state of Maryland. These facilities require security protection at all times. Absolutely no photography of aircraft is permitted.

1.3. Use of Premises:

1.3.1. Coordinate access to premises with Contracting Officer’s Representative (COR) for execution of work. Emergency situations, military operations, or other contingencies, may cause suspension of work or restrictions on access to the construction site. If military emergency operations require escorts, the Government will provide them to the Contractor at no cost.

1.3.2. The Contractor shall designate employees; usually the job superintendent and one other person, to sign a background check release form for base access. Once a background check has been completed with no negative findings, those employees will be granted escort privileges. This employee shall be responsible for escorting all employees that do not have badges, including subcontractors and delivery persons.

1.3.3. The COR will determine the equipment, material and other staging locations or work areas available under this contract.

1.3.4. Contractor shall assume full responsibility for protection and security of materials and equipment stored on site.

1.3.5. Contractor shall move any stored products, under their control, which interfere with operations of the Government.

1.4. Government Equipment: Contractor use of Government owned or leased equipment such as: hoists, forklifts, compressors, welding machines, cutting rigs, etc. shall not be permitted on either a reimbursable or non-reimbursable basis. Cost for all equipment required to accomplish the work shall be included in the Contractors final bid price.

1.5. Permits and Inspections:

1.5.1 Normally no permits or inspections by local building officials are required. All inspections and testing will be performed by COR unless modified by the Statement of Work.

1.5.2 Unless otherwise specified in other sections of this specification, the use of burning equipment or open flame welding and cutting shall be allowed only as authorized in writing by the local Fire Inspector (Facility 3150). Once approved by the Fire Inspector, a written AF Form 592 - USAF Welding, Cutting, and Brazing Permit will be issued. The permit is will be issued by the fire department within one (1) hour of request, and must be renewed daily. In addition to this permit, a Risk Assessment for the hot work will be provided by Safety (Facility 2120).

1.5.3 Digging permits are obtained from the Work Control Office (Facility 2100) at (410) 918-6300. The Contractor is responsible for contacting Miss Utility to mark the gas and electrical lines. The Contractor is responsible for hiring a private underground utility marking company to mark the water, sanitary sewer, storm sewer, broadband cable, and communication lines.

1.6. Change Orders: Only the Base Civil Engineer (BCE) or the Contractor may initiate change order requests. Do not proceed with any work until a signed modification or other written authority is received from the Contracting Officer. Only the Contracting Officer may approve a change order.

1.7. Field Changes: No changes in the cost or the scope of the project may be made without processing a change order. Field changes not involving cost or scope may be initiated by the BCE, COR, Contracting Officer or the Contractor.

1.8. Contractor Passes: Contractor’s Passes and ID cards for all Contractor personnel are required for access to the Base and construction site. All employees who will be driving on base must have a valid driver’s license, proof of vehicle insurance, vehicle registration and a vehicle pass. Vehicle Passes and Base ID cards can be obtained from the Security Forces (Facility 2020).

1.9. Daily Report and Sign-In Register: Each day the Contractor is on site to perform any work, the Superintendent/Foreman shall sign in at the Base Engineering (Facility 2100), indicating specific Facility/Location and the number of persons who shall be performing work that day.

1.10. Hours of Operations: The hours of operations at the Martin State Airport Air National Guard Base are 10 hours per day (0630 – 1700) Tuesday – Friday. Coordinate access to premises with COR for execution of work. Emergency situations, military operations, or other contingencies, may cause suspension of work or restrictions on access to the construction site.

1.11. Off-Hours Work: Except as otherwise specified, all work shall be performed during regular work hours (indicated above). If the Contractor desires or is required to work on Mondays, Saturdays, Sundays, Holidays or other hours outside normal work schedule, the Contractor shall be required to seek written approval from the BCE. The Contractor is not entitled to premium time if the request is approved.

1.12. Clean up: The work site is an active civilian and military airport. Site cleanliness and Foreign Object Debris (FOD) control is essential. The Contractor will clean up all construction debris and refuse and will remove it from the work site and the Base daily at their own expense.

1.13. Safety: The Contractor is responsible for performing all work In Accordance With (IAW) State and Federal OSHA requirements as well as compliance with the most current USACE EM 385-1-1. This is available at http://140.194.76.129/publications/eng-manuals/em385-1-1/2008_English/toc.html. Contractor personnel must be made aware of the hazards at the site and be briefed by Munitions Admin (Facility 5130) personnel on precautions and actions to be taken in the event of an accident involving ammunitions and explosives. Flame and heat producing equipment will not be used inside any facility unless facility contents are protected from flame, sparks, and heat by physical separation or shielding. POV, GOV, or other combustible engine equipment may not be closer than 25 feet to the facility while in direct support of facility maintenance. A fire truck standby will be will be required by the Fire Department during all hot work because the facility is in the Munitions compound. The fire truck standby will be provided at no cost to the Contractor.

1.14. Environmental Protection And Waste Disposal: The Contractor shall, at their own expense, remove all sludge, dusts and debris from the property of the Martin State Airport Air National Guard Base which have resulted from specific work described in Paragraph 2 of these specifications. The disposal of all such materials, which may include hazardous or toxic liquids that are used to perform the work, shall conform to all Federal, State, and Local environmental regulations with regards to both transportation and ultimate disposal. This project must comply with all Federal, State, and Local environmental regulations. All dumpster service and waste management shall be provided at no additional cost to the Government. All recyclable metal shall be placed into Martin State Airport scrap metal recycling containers. Please contact the Base Environmental Engineer Lt Col Peter Loebach at (410) 918-6486 for detailed information.

1.15. Hazardous Materials: If suspected hazardous materials are discovered, do not disturb, and contact the COR.

1.16. Drawings: Drawings furnished by the government to the Contractor may be used for general information only and shall not be relied upon or used as the basis for preparation of contract drawings required by this contract without complete on-site verification by the Contractor.

2. Specific Project Information:

2.1. Codes: Roof Replacement and Repair Lightning Protection Systems - National Fire Protection Association (NFPA), International Building Code (IBC), International Plumbing Code (IPC), and the national building code adopted by the local jurisdiction for wind, snow and seismic loads.

2.2. References: Roof Replacement - Factory Mutual (FM) Standard 4470 - Approval Standard for Class 1 Roof Covers, Underwriters Laboratories (UL) - Roofing Systems and Materials Guide (TGFU R1306), American Society for Testing and Materials (ASTM) - Annual Book of ASTM Standards, Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA), National Roofing Contractors Association (NRCA), and the American Society of Civil Engineers (ASCE) Standards.

2.3. Standards: Roof Replacement - ASCE 7 - Minimum Design Loads for Buildings and Other Structures, UL 790 Class A for fire resistance, and UL 580 Class 90 for wind uplift resistance. Repair Lightning Protection Systems – NFPA 780 - Standard for the Installation of Lightning Protection Systems, Air Force Instruction 32-1065 (1 October 1998) – Grounding Systems, Underwriters Laboratories (UL) 96A – Standard for Installation Requirements for Lighting Protection Systems, and Air Force Manual 91-201 – Explosives Safety Standards.

2.4. Site Visit: A site visit can be coordinated by contacting the COR.

2.5.

Cost Proposal: Provide a detailed cost proposal indicating costs and breakdown for:

2.5.1.

Installed TPO roof system, complete. As a minimum, include lines for: demolition and disposal of existing materials, installation of the tapered insulation and cover board system, installation of the membrane, gutters, downspouts, and installation of auxiliary materials (flashing, adhesives, caulking, etc.)

2.5.2.

Repaired LPS systems, complete by Facility. As a minimum, include lines for; removal, reinstallation and repair, testing reports, and UL Master Label Certification.

2.6.

Description of Work: The Contractor shall describe in his or her proposal how they will manage the project. The Contractor shall identify key staff and their abilities to manage projects of this magnitude, including scheduling methods, reporting and execution.

2.7.

Construction Performance Period: The Contractor shall identify the proposed construction performance period. The proposed performance period will be included in the Cost Proposal.

2.8 Meetings: A Preconstruction Meeting will be required post award and prior to construction. Weekly progress meetings will also be required.

2.9.

Sundry Elements: Any material, devices or services not specifically mentioned or indicated in this specification that are reasonably required for a complete, finished and first class operating installation, shall be provided by the Contractor at no additional cost to the owner. The work shall be installed in accordance with this specification and best industry practices.

2.10.

Roof Replacement Scope of Work:

2.10.1 Approximately 3,087 square feet of roofing on Munitions (Facility 5110) is to be replaced. This includes new gutters and downspouts necessary to maintain a water tight roof with a twenty year full system material and labor warranty. The government is open to best value solutions.

2.10.2 Materials: All materials used are to be recommended by the roofing system manufacturer for the intended use and compatibility with the new roofing system.

2.10.3 Installation: The installation of all materials is to comply with the roofing system manufacturer’s written instructions for installation and best industry practices.

2.10.4 The roof replacement includes, but is not limited to the following items:

2.5.1.1. Remove existing roof system down to the structural concrete surface to receive the roofing system. Prepare concrete substrate to meet the roofing manufacturer’s requirements. Prime substrate if required by the roofing manufacturer.

2.5.1.2. Remove existing boiler stack and other unused roof equipment. Infill roof openings with a structural substrate per the manufacturer’s recommendation. Infill panel must be designed and installed to provide the Code required roof loading.

2.5.1.3. Remove existing roofing material on the parapet walls.

2.5.1.4. Remove gutters and downspouts.

2.5.1.5. Remove all metal roof drip edges. Remove all wood nailers and fascia.

2.5.1.6. Remove existing LPS system and replace it after the new roof system has been completed.

2.5.1.7. Guidelines: Furnish and install a fully adhered roofing system in accordance with manufacturer’s written instructions and applicable recommendations of NRCA quality control guidelines for the application of the roofing and wood nailers.

2.5.1.8. Wood nailers and fascia: Replace wood nailers and fascia to match existing sizes and install the type of wood recommended by the roofing manufacturer. Provide and install wood nailers for parapet copings. If pressure-treated wood is used follow the roofing manufacturer’s instructions regarding the type of fastener. Provide new aluminum fascia, drip edges, copings, gutters (min. .032” thick), downspouts (min. .024” thick), flashings and accessory products separated from any pressure-treated wood by a piece of TPO membrane. All metalwork to be dark bronze, anodized aluminum. Size gutter and downspout system to meet IPC and SMACNA requirements. Clad the entire vertical face of the 2”x wood fascia with the .050” thick aluminum fascia and hold in place with a continuous clip angle. All metalwork must be fabricated and installed in accordance with SMACNA and NRCA recommendations.

2.5.1.9. Insulation: Provide min. 1” tapered (1/8” per foot) insulation with min. ½” cover board as recommended by the roofing manufacturer.

2.5.1.10. Roofing membrane sheet: The single ply membrane should be an ASTM D6878, white, 45 mil single-ply fully adhered membrane roofing system that is fabricated of a TPO compound and is reinforced with an anti-wicking polyester scrim or fabric (Firestone UltraPly TPO or equal). At the completion of each day’s work, a watertight seal must be established at any loose edge of roofing membrane with a sealant as recommended by the roofing manufacturer.

2.5.1.11. Heat welds: After all field heat welds, a hand and knee inspection shall be made of the entire length of the weld with a tack claw.

2.5.1.12. Parapets: On all parapet locations, remove existing roofing material and install wood nailer on top. Install roofing membrane on all vertical surfaces of the parapet walls and terminate at the top of the walls per roofing manufacturer’s recommendation. Provide and install .050” thick aluminum coping and hold in place with an industry standard SMACNA detail.

2.5.1.13. Vents: Furnish and install two-way air vents as recommended by the manufacturer.

2.5.1.14. Ponding: All deck sheets and parapets will be pulled tight and installed as wrinkle-free as possible. Care shall be taken to remove ponding areas and to ensure proper drainage on the roof deck.

2.5.1.15. Penetrations: Furnish and install new, pre-manufactured flashings on all roof penetrations as specified by the roof system manufacturer.

2.5.1.16. Flashing: Remove all existing metal flashing and replace with new .050” thick aluminum flashing. Form sections true to shape, accurate in size, square and free from distortion or defects.

2.5.1.17. Walk Pads: Furnish and install new 2’6” x 5’ safety stripe, full skirt walk pads around all serviceable rooftop equipment. Pads shall be installed by welding the 6” skirts completely to the deck membrane with a 1 ½” weld to prevent the walk pads from dislodging.

2.5.1.18. Quality Assurance: Once installation is complete, a manufacturer’s Quality Assurance Specialist (QAS) shall inspect the visible details of the roofing system for acceptability for warranty issuance. Any deficiencies shall be corrected by the Contractor and made ready for re-inspection within five (5) working days. Warranty shall be promptly issued upon acceptance by the QAS.

2.5.2. Warranty: Provide a manufacturer's minimum 20 year full system weather tightness, workmanship, and material warranty.

2.6. Cutting and Patching Proposal: Submit a proposal describing procedures at least 7 days before the time cutting and patching will be performed, requesting approval to proceed.

2.6.1. Cut in-place construction to provide for installation of other components or performance of other construction, and subsequently patch as required to restore surfaces to their original condition.

2.6.2. Use materials identical to in-place materials. For exposed surfaces, use materials that visually match in-place adjacent surfaces to the fullest extent possible.

2.7. Quality Control: The Contractor shall establish and maintain quality control to assure compliance with contract requirements and shall maintain records of his quality control for all construction operations required under this section. A copy of these records, as well as the records of corrective action taken, shall be furnished to the Government.

2.8. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Owner or others unless permitted under the following conditions:

2.8.1. Notify the COR prior to arranging with Baltimore Gas and Electric (BG&E) to shut off and turn on electrical and/or natural gas utilities. Notify the COR not less than 7 days in advance of proposed utility interruptions. The Government will be responsible for all BG&E connection fees.

2.8.2. Do not proceed with utility interruptions without the COR’s written permission.

3. Submittals:

3.1. Shop Drawings: Provide drawings required to show the systems involved and clearly show the extent, type and detailed requirements of the work for approval by the COR prior to construction. Submit 4 sets of all drawings; 1 set for BCE, 1 set for Contracting, and 2 sets will be returned to the Contractor. Drawings shall include but not be limited to:

3.1.1. Schedules as required.

3.1.2. Typical sections.

3.1.3. Construction plans and details.

3.2. As-Built Drawings: Provide redlined As-Built drawings of all new construction. Utility redlines shall show the locations of utility lines and connections with dimensions that are triangulated to building corners.

3.3. Product Information: Provide all material submittals will be utilizing AF IMT 3000, Material Approval Submittal available at http://www.usmilitarycontracting.com/uploads/Attach_6.pdf for approval by the COR prior to construction. Submit 4 sets of all AF IMT 3000 with attachments; 1 set for BCE, 1 set for Contracting, and 2 sets will be returned to the Contractor. Provide the following product information, calculations, and material samples for approval by the COR prior to construction:

3.3.1. Latest manufacturer's installation instructions for roof replacement system.

3.3.2. Size, material, and finish of gutters and downspouts with design calculations.

3.3.3. Roofing membrane material (Firestone or equal) and roofing system structural calculations.

3.3.4. Cover board material.

3.3.5. Adhesives.

3.3.6. Fasteners.

3.3.7. All auxiliary materials (flashing, drip edges, caulking etc.)

3.3.8. Sample roof warranty.

3.4. Installer’s Qualification: Provide documentation that the Installer is a qualified firm that is approved, authorized, or licensed by the roofing system manufacturer to install the manufacturer’s product and that is eligible to receive the manufacturer’s warranty.

3.5. ADDITIVE BID ITEM: Certifications: Provide documentation of UL Master Label Certifications for both facilities.

4. Prescriptions/Clauses:

4.1. Wage Determination: Currently, General Decision Number MD120068 04/06/2012 MD68 is applicable to this task order. However, the current prevailing Wage Determination will be incorporated at time of award.

4.2. Performance and Payment Bonds: In accordance with Contract Clause 52.228-15, Contractors are reminded that any award over $25,000 shall require Payment Bonds and awards exceeding $100,000 shall require both Payment and Performance Bonds. All bonds are due no later than 10 days after award.

4.3. Construction: (X) YES or ( ) NO, reference Contract Clause 52.246-21, Warranty of Construction Clause is applicable to this task order.

5. Statement of Work Attachments:

5.1. Vicinity Map

5.2. Photograph Locations Map

1- MUNITIONS (FACILITY 5110) SOUTH ELEVATION 2-MUNITIONS (FACILITY 5110) EAST ELEVATION

3-MUNITIONS (FACILITY 5110) WEST ELEVATION 4-MUNITIONS (FACILITY 5110) NORTH ELEVATION

5-MUNITIONS (FACILITY 5110) TYP. EXISTING 6-MUNITIONS (FACILITY 5110) TYP. EXISTING

GUTTER TO BE REMOVED AND REPLACED PARAPET COVER TO BE REMOVED AND REPLACED

7-MUNITIONS (FACILITY 5110) FIRE ALARM ANTENNA 8-MUNITIONS (FACILITY 5110) EXISTING

TO REMAIN

DOWNSPOUTS TO BE REMOVED AND REPLACED

9-MUNITIONS (FACILITY 5110) EXISTING BOILER

EXHAUST TO BE REMOVED