ISO VOR Scope of Work 10-23-2018.pdf

SCOPE OF WORK

ISO VOR, ROOF REPLACEMENT

Kinston, North Carolina 10/23/2018

1.0 BACKGROUND

The Kinston VOR Facility is contained in a 36’x36’x12’high equipment building. It has a flat round roof 52’ in diameter. A 16’ tall, cone shaped antenna cover “tipi” is on the roof. There are 16, 4’ tall, detector antennas with “mailbox” sized covers arranged around perimeter of roof. The building contains an equipment room, storage room, EG room, and a lavatory.

The FAA wants to replace the building roof, improve the grounding system and replace electrical distribution panels. Contractor shall provide FAA with a price proposal for all work described below.

Contractor shall provide a separate unit price for item 1.1, 4., g).

1.1 SCOPE OF WORK

The Contractor shall perform the following instructions:

1. Provide asbestos testing services. Cut a 6”x6” sample through all layers of the roof down to the wood deck. Use tin snips to cut through the sheet metal layer. Patch resulting hole in roof with 1 gallon roof repair mastic. Submit samples to an asbestos/environmental testing laboratory licensed in the State of North Carolina. Provide test results to the FAA two weeks before demolition work begins.

2. Provide new copper roofing sheet that meets ASTM standard B370 H00. New roofing sheets must be cold rolled, 99.9% plain copper. New copper roofing sheets shall not be coated. The name “terne plate” is used in this scope of work and drawings to describe both the new and the old existing roof sheets.

Furthermore, terne plate is old nomenclature that must not be used when ordering new roofing sheets.

3. Provide a sample roof panel. After material samples are approved and prior to starting flat seam copper panel roof work, a 4’ x 5’ portable sample of copper panel over plywood shall be constructed on site. The sample shall be located per directions from the FAA RE. Panel shall be built in accordance with Specification ISO VOR 1506778, Div 2 Skills & Qualifications.

4. Furnish and install a new elastomeric reflective roof membrane on ISO VOR equipment building.

Remove and discard old roof. Clean and prepare surfaces for new roof. All work to be done in accordance with the attached drawings & specifications.

a) This work requires an extended shutdown of VOR service. Provide one month advance notice to FAA. Verify NOTAM’s have been made. Obtain written permission from FAA to begin work.

b) Make arrangements with an FAA Technician to take the VOR out of service & de-energize antenna power. Un-fasten antenna cable located within tipi and remove electrical wiring harness from antenna motor. Wrap connectors in plastic bags w/electrical tape to prevent damage during construction.

c) Provide crane services to remove fiberglass antenna cover. Cover is cone shaped 16’ high with 10’ diameter base. Cover weighs approximately 500lbs. Remove TACAN antenna motor. Unbolt top cover & ring and remove from main tipi. Unfasten & pry off main tipi and remove from roof deck.

d) Unbolt and remove 16 mailbox antennas, brackets and, posts. Carefully collect all nuts, bolts, washers & plates and, store for re-use. Arrange with FAA Technician to disconnect coaxial cable from each antenna. Protect coax connectors with plastic bags and electrical tape. Tie wrap antenna cables out of the way.

e) Completely tear off all old roofing, metal terne plate, and vapor barrier in order to fully expose wood roof decking. Disconnect grounding down leads. Broom clean all debris from deck.

f) Tear off all old roofing from underneath tipi. De-solder terne plate from steel antenna pedestal mounting ring.

g) Repair and replace any damaged wood decking with new 2”x6”, type 2, pressure treated lumber.

Contractor will include 500 square feet of wood deck replacement in his base bid. Any damaged wood that exceeds 500 square feet shall be replaced by contract modification per unit price. This unit price must be contained in the Contractor’s bid offer.

Unit Price for additional wood decking replacement: $/sq.ft.=

h) Repair and replace any damaged mailbox antenna support brackets. Replace any bad fasteners with new stainless steel nuts & bolts.

i) Provide a new Flat Seam Copper Plate and Elastomeric Roof System in accordance with drawing series ISO-1506778

j) Install ¾” plywood, vapor barrier, rosin paper and, 18” x 24” flat seam copper pan sheets in accordance with specifications.

k) Solder copper plate securely to the antenna pedestal and, (4) 4” x 12” bent copper plates on edge of roof and connect new 2/0awg grounding down conductors.

l) Install a fully adhered, single ply, liquid applied roofing membrane in accordance with the contract specifications.

m) Provide new 8” wide, 24 gauge, folded, copper metal edge trim around entire 164’ perimeter of roof.

n) Provide the services of a licensed surveyor. Set a transit on center of antenna platform. Follow instructions given in specifications to mark new locations for mailbox monitor antennas. Fabricate new brackets in accordance with drawings. Re-attach mailbox antenna brackets.

o) Pressure wash and paint mailbox covers. Paint mailbox covers with two part thermosetting epoxy paint color white.

p) Provide crane services. Install new GFM fiberglass tipi on top of roof. Position neoprene gasket under tipi. Place tipi on roof and bolt into final position. Provide a liquid applied, 2’ wide, roof membrane flashing around entire perimeter of tipi. Completely seal off the construction joint at base of tipi.

q) Re-attach the antenna motor, top cover & ring. Re-connect all antenna cables & power wiring harness.

r) Make arrangements with the FAA to re-energize VOR and place it back into service.

5. Contractor must take all steps necessary to protect FAA property and equipment from moisture damage during construction. Provide a waterproof tarpaulin capable of covering entire 40’x40’ roof per contract specifications Section 10B.

6. Provide the FAA with a 20 year warranty on Roof Manufacturer’s materials and, a one year warranty on Contractor’s labor. Contractor will repair any leaks or defects in roof at no cost to the FAA for a period of one year.

7. Furnish and install (4) new #2AWG THWN grounding downleads. Remove and discard the existing #2AWG downleads located at each corner of building. Provide new copper grounding plates per contract drawings. Provide new Burndy compression fittings lugs for bolt connections to ground plates.

Connect new #2AWG downleads to new ground counterpoise described in no. 6. below. Provide exothermic welded connections to earth ground equal to CadWeld. Provide new PVC conduit & galvanized clamps on all (4) sides of building to protect downleads.

8. Furnish and install (1) new earth ground counterpoise. Install a #4/0 AWG bare 7 strand copper cable 24” below grade in accordance with drawings. Install 10’ x ¾” copper clad steel ground rod in 7 places per the drawings. Provide #4/0 connection from old counterpoise to new counterpoise inside ground well. All underground electrical connections to be made by the exothermic process unless otherwise noted.

9. Provide FAA with an electrical safety lock out tag out plan in order to replace Panel C & D and, to remove Panel A.

a) Lock out tag out plan will describe tools, equipment, and plans needed to de-energize, remove, replace and re-energize all circuits.

b) Describe how the new circuits will be tested after installation.

10. Replace (2) electrical panels. Remove and discard (1) electrical panel

a) Replace Main Panel C in Equipment Room. Provide (1) new 200amp, 120/208volt, 3phase, 24 space, MBO electrical distribution panel. Remove and discard old panel.

b) Provide an electrical panel equal to that made by Square D that contains QOB-VH style breakers.

c) Provide a panel with a hinged dead front cover that allows Technician to open panel & test live circuits.

d) Provide copper power, neutral, & ground buss.

e) Provide bolt down style breakers with a 22kA interruptible rating. Provide an equal number of breakers with the same ampere rating as contained in existing panel.

f) Provide panel that fits in the 44”x20”x6” space available and, has electrical termination points that can be reached by the existing conductors.

g) Replace Sub Panel D in Equipment Room. Provide (1) new 100amp, 120/208volt, 3phase, 32 space MLO electrical distribution panel. Remove and discard old panel.

h) Provide an electrical panel equal to that made by Square D that contains QOB-VH style breakers.

i) Provide a panel with a hinged dead front cover that allows Technician to open panel & test live circuits.

j) Provide copper power, neutral, & ground buss.

k) Provide bolt down style breakers with a 22kA interruptible rating. Provide an equal number of breakers with the same ampere rating as contained in existing panel.

l) Provide panel that fits in the 44”x20”x6” space available and, has electrical termination points that can be reached by the existing conductors.

m) Remove Sub Panel A in Storage Room.

n) Identify the two active circuits in panel A. Tag line, neutral, & ground wires for future identification.

o) Completely remove panel and, pull all abandoned wires back into wireway. Cut any excess wire and, tape & wire nut the ends of all abandoned cables.

p) Enclose the remaining two active circuits inside a 4” square handy electrical box & ¾” EMT conduit.

q) Make one run of ¾” EMT conduit from handy 4” box to Panel D.

r) Provide new wiring from 4” box to panel D. Land new wires on Panel D breakers. Test circuits.

11. Clean up site. Remove all construction materials. Broom clean building interior & roof top.

1.2 DRAWINGS

ISO-1506778-G001

ISO -1506778-G002

ISO -1506778-G003

ISO -1506778-D001

ISO -1506778-A001

ISO -1506778-A002

ISO -1506778-A003

ISO-1506778-A004

ISO -1506778-E001

ISO-1506778-E002

1.3 SPECIFICATIONS

a) INSTALLATION OF ROOFING MEMBRANE ON ISO VOR ROOF 10/23/2018

b) CDA Publication A4050-04/18

c) ASTM Standard B370 H00, cold rolled, 1/8 hard, 99.9% copper

d) FAA-STD-019E

e) FAA-C-1217F

f) FAA-C-1391C

g) NFPA 70

1.4 SUBMITTALS

All products & materials used shall meet FAA approval before work begins. Submittals will include the following:

a) Work Schedule

b) Contractor’s Official Company Safety Policy

c) Site Specific Emergency Medical Action Plan

d) Bonding and Insurance

e) Equipment, cranes, man lift, boom lift, or aerial work platform

f) Certification of Skills & Qualifications. Electrician’s License

Materials, Tools & Equipment contained in 1.1, 1 through 11 above

g) Roof vapor barrier, 3/4” plywood, 2”x6”PTL, & fasteners

h) elastomeric roof system

i) 20 oz per sq ft copper, copper trim, solder, soldering iron, non corrosive flux

j) Copper sheet metal drip edge, fascia trim &, fasteners.

k) Roof system warranty.

l) Electrical fittings, wire, conduit & exothermic welding materials

m) 200A MBO & 100A MLO electrical panels

2.0 GENERAL REQUIREMENTS

a.) Contractor will give FAA twenty one day advance notice before construction begins.

b.) All work shall be coordinated, scheduled, & approved by FAA Air Traffic Management and Airway Facilty Management. NAS critical systems shall not be shut down and cut over until strategic shutdown committee approval is received.

c) Contractor will stage work in a manner that minimizes ISO VOR outage time.

d) Protection of work. Contractor shall not leave roof open to elements and will have enough tarp on hand to prevent water from entering building. Building roof will remain covered at all times.

e) All Electrical work shall be performed by a Licensed Electrician. FAA will accept license from States outside North Carolina.

f) Contractor shall repair any damage done by him to any entity, at his cost. Contractor shall be covered by minimum locally required liability.

g) Contractor must provide FAA with a safety and security plan before any work begins. Plan will include procedures for accident prevention, emergency procedures, phone number & map to nearest emergency medical facility.

h) Contractor's Superintendent shall be present at the work site during all times work is performed. Superintendent shall carry a cell phone and, be prepared to make and receive calls to & from the FAA at all times while on work site.

2.1 WORK HOURS AND CONDITIONS

a) VOR roof work must start and finish within 45 calendar days.

b) Contractor will obtain authorization to work from the FAA and be subject to continuous FAA escort.

c) Contractor will report & coordinate each days work in advance with an FAA technician that is trained to operate and repair VOR equipment.

d) Work will be done during daylight hours between 7:00AM to 4:00PM. Mon thru Fri.

e) Saturday & Sunday work will only be allowed to expedite roof repair in case of rainy weather.

3.0 PRE – BID SITE VISIT

The Contractor is expected to carefully examine the areas of the proposed work, to see first hand the extent of work involved. The submission of a proposal will be considered evidence that the bidder has made such examination and is satisfied as to the conditions to be encountered in performing the work.

The FAA Contracting Officer will provide a date for one official site visit with the Engineer. If any other visits are needed, Contractor must give FAA at least five days advance notice before appearing on site. All visitors must be escorted by an FAA employee, or other authorized personnel.

3.1 REFERENCE MATERIALS

Original site drawings. Not for use in construction. Will be provided on request.

SO-D-101440-L01, Kinston VOR Plot Layout, 12/24/1990

SO-D-101440-L02, Kinston VOR Topography & Layout, 12/26/1990

4.0 LOCATION

FAA ISO VOR

35.37095 N

77.55833 W

Elev. 50’

Entrance at intersection of County Road 5 and unpaved easement road.

Lenoir County, NC, 12 miles North of Kinston, East of I-95. ½ mile down unpaved road off County Rd 58.

5.0 CONTACTS

Brian Riportella, SSC Mgr. WEX27-ILM Richard Polk, FAA Engineering FAA Wilmington SSC 1701 Columbia Ave 2220 Control Tower Dr College Park, GA 30337 Wilmington NC 28405 w:404-305-7445 c:678-485-6811 w:910-815-4969 c:910-599-3829 e:mail: richard.polk@faa.gov e:mail brian.riportella@faa.gov

Jim Berry, WEX27-ILM FAA Kinston FCT 2920 Rouse Rd Ext Kinston, NC 28504 w: 252-208-0673 c:910-409-8544 e:mail james.berry@faa.gov

6.0 FAA JOB NUMBERS

JCN: 1506778 JON: 1218SO0116

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mailto:richard.polk@faa.gov mailto:brian.riportella@faa.gov mailto:james.berry@faa.gov