1402993 Roofing Project Full Spec.pdf

Federal Aviation Administration

New York Air Route Traffic Control Center

ZNY Roof Replacement 2019

Scope of Work-

General Conditions-

The project will be accomplished at the FAA New York Air Route Traffic Control Center at 4205 Johnson Ave, Ronkonkoma, NY 11779. All bidding contractors must visit the site to become familiar with the site conditions and to review access to the existing roofs. The contractor shall provide enclosed dumpsters and clean all debris at the end of each work shift. Work Hours for roof demolition and new roof installation shall be from 4:00 AM until 3:30 PM (weekdays). Asbestos Abatement (where required) shall be accomplished between 10:00 PM and 4:00 AM. The intent of these work hours is to minimize the noise from roof demolition and noise from the installation of roof screws in the administrative space below. Installation of roof screw shall be completed by 7:30 AM. All work shall be accomplished in accordance with OSHA and FAA Safety Regulations, specifically; fall protection shall be required for all roof work, at all times. Contractors will fill out the FAA Safety Checklist with the FAA Resident Engineer prior to commencement of work. Contractors shall provide a list of names to the FAA (2) weeks prior to the start of construction. All workers will need to check in at the FAA NYARTCC Security Building at the beginning of each work shift. All workers must bring a valid Photo ID (Driver’s License) with them to be shown to FAA Security personnel at the beginning of each work shift. The contractor shall provide a Daily Report summarizing work completed and including a log of all personnel who worked on site during the work shift and the hours for each individual worker.

General Notes-

1. Locate existing conduit installed on the bottom of metal roof decking (inside the buildings) for all roofs, prior to installing new roof screws. The contractor is responsible for all damage to existing piping and electrical circuits installed to the bottom of the roof decking caused by the installation of roof screws.

2. Provide self-supporting fiberglass roof safety railing for all roofs, 42” high with steel supporting base plates and other required hardware. System shall have top and mid rail in accordance with OSHA Standards - 29 CFR 1910.23 (a)(2). SafetyRail 2000FG Fiberglass Guardrail by Bluewater meets this specification. Provide new roof pads at all bases. Provide safety railing in all locations required by FAA and OSHA Regulations.

3. Remove and re-install the perimeter lightning protection system cables on each roof. The contractor will need to mark the existing cables to reinstall them correctly. If the contractor misplaces or damages the existing lightning protection cable, he will need to replace the cable with cable by Thompson Lightning Protection Company (Type A28 28 x 14 gauge). Provide new cable attachments and lightning rod supports- new A730 Cable Holders for Aluminum cable installed 5’ on center and A66 Bases for Air Terminals (Thompson Lightning Protection) and 2’ air terminals (Thompson A571BT). The contractor shall confirm part numbers and quantities for a complete lightning protection system. Save all cables connectors and other hardware to be reinstalled. Replace missing or damaged parts in kind.

4. Provide an exterior stair type scaffold for access to all Roofs. The scaffold shall remain in place until completion of this roof. The stair scaffolding shall be installed in accordance with the Building Code of Suffolk County. The workers for the scaffold company shall have successfully completed the thirty-two-hour training program or course pursuant to the United States Department of Labor's OSHA thirty-two-hour scaffold safety and training curriculum and, if such training program or course has been completed more than two years previously, taken an eight-hour scaffold safety and training refresher program or course. The contractor shall provide copies of this training to the FAA in advance for the FAA to review.

5. Provide new coping to match the gauge and color of the existing coping. The contractor shall note the configuration and dimensions of all existing coping. Provide hold down clips and splice plates. Minimum sheet metal gauge is .050 – color selected by the FAA for each roof.

6. Ponding (standing water) will not be allowed on any completed roof. Install crickets and tampered insulation to insure no standing water is present on completed roofs.

7. Provide new Retrofit style roof drains for each existing roof drain. The retrofit drains shall be constructed of 16-gage, type 304 construction with heavy-duty Dura-Coated cast iron dome strainer. Dura-Coated cast iron clamp device with integral gravel guard. Zurn RD2150-SS4 Commercial Stainless Steel Replacement Roof Drain meets this specification.

8. The contractor shall clean debris caused by roofing operations inside the existing buildings. If roofing material, dust or debris falls into the inside of the building during demolition or the new roof installation, the contractor will be responsible for cleaning these items. This cleaning will take place during non-admin hours, which are 600 AM – 430 PM or weekends.

9. The contractor shall protect the newly installed membrane from other construction activities after installation. The contractor shall clean the membrane by pressure washing and mechanical floor cleaning machines with scotch brite type pads. A cleaning solution or solvent approved by the roofing manufacturer prior to final acceptance to remove dirt or staining as directed by the

FAA.

10. The contractor shall coordinate all roof demolition with weather conditions. If the forecast is predicting precipitation, roof activities shall be postponed until the weather forecast is favorable. The contractor is responsible for coordinating work to ensure that precipitation will not enter the facilities building envelope during construction activities. The contractor will be held responsible for any damage caused by precipitation entering the facility due to construction activities. The FAA will postpone roof work if the weather forecast shows precipitation for a scheduled work shift, at no additional cost to the government.

11. All roofs shall be demolished down to their roof deck (concrete or metal decking). Demolition of all roofs shall be accomplished by disassembling the roof by removing all existing roof screws and removing the existing roof system in large sections. The intent is to minimize dust during demolition/abatement activities.

12. All new wood blocking and wood products shall be pressure treated- ground contact rating.

13. All electrical work shall be accomplished by a contractor who is a licensed electrician in Suffolk, County, NY. All work shall be in accordance with the latest version of the National Electrical Code (NEC) and FAA Orders including FAA Order 1217.

14. All demolished roof debris shall be lowered from the roof with a crane and aluminum rigging box. Use of roof chutes will not be allowed.

15. Dispose of all existing roof concrete pavers as directed by the FAA.

16. The contractor will install a new through wall copper flashing system (with soldered joints) wherever new roofing meets a masonry wall. The contractor will remove (2) courses of brick, in 5’ sections, to support the masonry wall above. New copper flashing will be installed and return up the structural wall behind the brick. The contractor shall install continuous adhered EPDM flashing from the new copper flashing to the structural wall behind the brick. The brick and mortar shall be replaced for the (2) courses removed. New brick shall match existing (provide a sample to the FAA for approval prior to installation). New weep tubes shall be installed 18” on center.

17. Replace all existing Roof Mounted Flood Lights. (8) 400 watt High Pressure Sodium HPS lights and associated bases (RAB MEGS400SFQT meets this specification). Remove and replace all existing conduit and wiring required to install new roofing systems (provide rigid steel conduit and THHN wiring). Roofer’s electrician shall disconnect and reconnect power for all exhaust fans. Three Kitchen exhaust fans can only be taken out of service between 4 AM and 7 AM or after 5 PM.

18. Provide a letter at the completion of the project stating that – No asbestos containing material have been used during the accomplishment of this project.

19. Submit on all roof products- roof insulation; roof board; roof adhesives and fasteners; TPO membrane; manufactures extruded fascia system. Submit information showing new roof assembly meets new roof warranty requirements in the attached specification. Submit on electrical items for the FAA’s approval- lightning protection components, conduit, fittings and electrical boxes, wire and light fixtures. Submit on pressure treated lumber. The FAA will approve submittals for contract compliance.

20. The contractor will need to coordinate the use of a crane on site. The crane will need a flashing light and aviation flag to operate. The contractor will need to coordinate the use of the crane with the aviation unit at Long Island MacArthur Airport. The height of the boom above grade and work hours will need to be coordinated prior to Notice to Proceed for the contract.

21. Provide temporary toilets for workers use. Maintain as required, as a minimum once per week.

22. Provide temporary power (generators) for roof work. Provide temporary lighting (generator powered) for all night work.

23. Provide a bar chart schedule for the project showing activities (asbestos abatement; roof demo, new roof installation; electrical work; etc) for the FAA’s review and approval prior to Notice to Proceed for construction activities. The FAA will coordinate the order of which roofs shall be completed, during the review of the contractor’s schedule. The contractor shall substantially complete one roof before starting to the next roof.

24. No Work Moratoriums- There are time periods where no construction activities are permitted on the site. The contractor will need to secure the site of all construction equipment and not work for the following time periods- 9/23/2019 – 9/30/2019 (UN Moratorium); 11/23/2019 – 12/2/2019 (Thanksgiving Moratorium) and 12/21/2019 – 1/02/2020 (Christmas Moratorium)

Administration Wing Roof – (Roof A)

Main Admin Roof- Steel Deck-ACM Present-

The roof is 105’ x 44’ (contractor to field verify). The existing roof has been tested and there is Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing metal roof decking below, as part of an asbestos abatement in accordance with the attached specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” roof board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The contractor shall leave the existing parapet walls and wood blocking in place. Repair existing wood blocking as required with new pressure treated lumber and cover wood blocking and roof cant or parapet with new roof board (Secure Rock). Install roof membrane over existing parapet or roof cant. Coping system will be replaced in kind.

The roof insulation and roof board shall be installed using Roof Screws and washers as per the manufacturer’s requirements. The roof washers need to be compatible with the Electromagnetic Induction Welded TPO roofing system. Provide the new Electromagnetic Induction Welded TPO membrane roof system for the approximately 4620 sq. ft. Roof (field verify roof area) as per the manufactures recommendations (Carlisle’s RhinoBond System meets this specification). See the attached specification for TPO Roofing System for additional requirements. The installation of the new roof shall begin at 4:00 AM in order to install the roof screws into the metal decking prior to 7:30 AM.

Install new TPO membrane over the parapet walls and wood blocking/roof cant at the edge of the roof.

The contractor shall install new coping to match existing conditions. The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (4) roof drains; (3) plumbing vents; and (1) curb mounted exhaust fan, and (1) roof hatch.

Provide new Retrofit style roof drains for each existing roof drain. The retrofit drains shall be constructed of 16-gage, type 304 construction with heavy-duty Dura-Coated cast iron dome strainer.

Dura-Coated cast iron clamp device with integral gravel guard. Zurn RD2150-SS4 Commercial Stainless Steel Replacement Roof Drain meets this specification.

Install tapered insulation as required to insure no roof ponding is present after the roof is completed.

Install roof crickets between roof drains.

Remove and replace existing electrical lighting conduits and boxes along the perimeter of the roof (approx. 220 LF). New conduit shall be ¾” Galvanized Rigid Steel with solid # 12 THHN wiring (including a green insulated ground conductor in each conduit. New electrical boxes shall be waterproof- FS type hub type boxes and galvanized condellets shall be cast type. Remove and replace the (4) existing floodlights with new 400 watt High Pressure Sodium HPS lights and associated bases (RAB

MEGS400SFQT meets this specification). There is an existing Floodlight for the flag pole that need to be connected to the new conduit run and reinstalled.

Remove and replace the Lightning Protection system. Provide and install new Thompson Lightning protection cable clamps, lightning rod supports and lightning rods. Mark lightning cables before removing them for re-roofing. Save all cables connectors and other hardware. Replace (2) 5’ lightning rods down the center of the roof with associated 4’ Thompson Lighting Rod Supports (Thompson 83- 5AA), provide new 5’ rods. Provide and install (14) new Lightning Rod Supports- Thompson Lightning Protection XA66 and (14) new 2’ lightning rods. Provide and install approx. (65) lightning cable clamps, Thompson Lightning Protection # A730.

Provide 160’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Safety Railing System on this roof (aprox 275 LF), all new bases for the Safety Railing shall be installed on roof pads.

Photo 1- Roof A- Note Roof Hatch, Exhaust fan, drains and lightning protection. Note pavers to be demolished.

Photo 2- Roof A- note the electrical conduit, lightning protection and floodlights. Repair existing wood blocking as required with new pressure treated lumber and cover wood blocking, roof cant/parapet with roof board. Coping system will be replaced in kind.

Remove and replace electrical conduit.

Replace light fixtures. Remove and Replace lightning protection (typical)

Administration Wing Roof – (Roof B)

Supply Area- Steel Deck- ACM Present-

The roof area is approximately 2525 sq ft (contractor to field verify). The existing roof has been tested and there is Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing metal roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” roof board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The contractor shall leave the existing parapet walls and wood blocking in place. Repair existing wood blocking as required with new pressure treated lumber and cover wood blocking and roof cant or parapet with roof board. Install roof membrane over existing parapet or roof cant. Coping system will be replaced in kind.

The roof insulation and roof board shall be installed using Roof Screws and washers as per the manufacturer’s requirements. The roof washers need to be compatible with the Electromagnetic Induction Welded TPO roofing system. Provide the new Electromagnetic Induction Welded TPO membrane roof system for the approximately 2525sq. ft. Roof (field verify roof area) as per the manufactures recommendations (Carlisle’s RhinoBond System meets this specification). See the attached specification for TPO Roofing System for additional requirements. The installation of the new roof shall begin at 4:00 AM in order to install the roof screws into the metal decking prior to 7:30 AM.

The contractor will install a new through wall copper flashing system wherever new roofing meets a masonry wall. The contractor will remove (2) courses of brick, in 5’ sections, to support the masonry wall above. New copper flashing will be installed to cover the new brick and return up the structural wall behind the brick, soldering all joints in the copper flashing. The contractor shall install continuous adhered EPDM flashing from the new copper flashing to the structural wall behind the brick. The brick and mortar shall be replaced for the (2) courses removed. New brick shall match existing (provide a sample to the FAA for approval prior to installation). New weep tubes shall be installed 18” on center.

Provide approximately 150 LF of through wall masonry flashing as described above (field verify). There are (3) conduit runs that will need to be relocated or temporarily supported to install the through wall flashing (confirm in the field).

The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (1) roof drain; (2) plumbing vents; and (3) curb mounted exhaust fans. Demolish 80 LF of ½ electrical conduit (approx. 40 LF are vertical on an adjacent wall).

Provide new Retrofit style roof drains for each existing roof drain. The retrofit drains shall be constructed of 16-gage, type 304 construction with heavy-duty Dura-Coated cast iron dome strainer.

Dura-Coated cast iron clamp device with integral gravel guard. Zurn RD2150-SS4 Commercial Stainless Steel Replacement Roof Drain meets this specification.

There is an electrical conduit feeding an Exhaust Fan that will need to be extended with rigid conduit, and extended # 12 THHN wiring, to accommodate the new roof system. The contractor shall install a splice box in the space below and provide new wiring and conduit to reconnect the existing bathroom exhaust fan.

Remove and replace the Lightning Protection system. Provide and install new Thompson Lightning protection cable clamps, lightning rod supports and lightning rods. Mark lightning cables before removing them for re-roofing. Save all cables connectors and other hardware. Replace (3) new 2’ lightning rods and bases on existing exhaust fans. Provide and install (6) new Lightning Rod Supports- Thompson Lightning Protection XA66 and 2’ lightning rods. Provide and install approx. (40) lightning cable clamps, Thompson Lightning Protection # A730.

Install tapered insulation as required to insure no roof ponding is present after the roof is completed.

Install roof crickets between roof drains. Install a large roof cricket (tapered insulation) adjacent to the existing roof access door.

Provide 180’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Safety Railing System on this roof (aprox 55 LF), all new bases for the Safety Railing shall be installed on roof pads.

Photo 3- Roof B- note the existing curb mounted exhaust fans Remove and dispose of existing 2’ x 2’ paving stones. Coping system will be replaced in kind. Note all masonry walls to have new through wall copper masonry flashing.

Provide new thru wall copper flashing at all brick walls (typical)

Photo - Relocate or temporarily support the conduit along the wall in order to install new copper thru wall flashing. The existing hollow metal door shall be replaced with a smaller door in the same frame (provide new continuous door hinge and weather stripping). Remount closer and lockset. Provide new brick to raise door sill 8”.

Relocate Replace conduit to install roof and new thru wall copper flashing (typ)

Admin Lobby Roof- Roof B1-

Concrete Deck- ACM Present

The roof is approximately 17’ x 20’ (contractor to field verify). The existing roof has been tested and there is Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing concrete roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The roof insulation and roof board shall be installed using a Low Odor two part polyurethane adhesive as per manufacturer’s requirements(Carlisle’s FAST Adhesive meets this specification). Provide a fully adhered Fleece Back TPO membrane roof system for the approximate 340 sq. ft. roof (field verify roof area). See the attached specification for TPO Roofing material product data. The Fleece Back TPO roof system shall be installed using a Low Odor two part polyurethane adhesive as per the manufactures recommendations (Carlisle’s FAST Adhesive meets this specification). Install new 2” x 8” pressure treated lumber (thickness as required) along the perimeter of the roof and provide new metal coping to match the existing condition.

Replace one roof drain with a new Retro-Drain, as per specification.

The contractor will install a new through wall copper flashing system wherever new roofing meets a masonry wall. The contractor will remove (2) courses of brick, in 5’ sections, to support the masonry wall above. New copper flashing will be installed to cover the new brick and return up the structural wall behind the brick. The contractor shall install continuous adhered EPDM flashing from the new copper flashing to the structural wall behind the brick. The brick and mortar shall be replaced for the (2) courses removed. New brick shall match existing (provide a sample to the FAA for approval prior to installation). New weep tubes shall be installed 18” on center. Provide approximately 37 LF of through wall masonry flashing as described above (field verify).

Photo - Administration Wing Lobby Roof B1- Demolish and replace the roof. Replace all flashing and gravel stop to match existing.

Photo – Admin Wing Lobby Roof B1- Note adjoining brick requiring through wall flashing and roof drain.

Install new thru wall masonry copper flashing

Administration Wing Roof C-

Antennae Farm- Concrete Deck- ACM

The roof is approximately 475 sq ft (contractor to field verify). The existing roof has been tested and there is Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing concrete roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The roof insulation and roof board shall be installed using a Low Odor two part polyurethane adhesive as per manufacturer’s requirements(Carlisle’s FAST Adhesive meets this specification). Provide a fully adhered Fleece Back TPO membrane roof system for the approximate 465 sq. ft. roof (field verify roof area). See the attached specification for TPO Roofing material product data. The Fleece Back TPO roof system shall be installed using a Low Odor two part polyurethane adhesive as per the manufactures recommendations (Carlisle’s FAST Adhesive meets this specification). Install tapered insulation, ie –roof crickets between roof drains and as required, to insure no roof ponding.

The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (1) roof drain; (1) plumbing vents; and (15) 4 inch diameter pipes (1) Roof Hatch.

Provide 80’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Retrofit style roof drains for each existing roof drain. The retrofit drains shall be constructed of 16-gage, type 304 construction with heavy-duty Dura-Coated cast iron dome strainer.

Dura-Coated cast iron clamp device with integral gravel guard. Zurn RD2150-SS4 Commercial Stainless Steel Replacement Roof Drain meets this specification.

Remove and replace the Lightning Protection system. Provide and install new Thompson Lightning protection cable clamps, lightning rod supports and lightning rods. Mark lightning cables before removing them for re-roofing. Save all cables connectors and other hardware. Provide and install (6) new Lightning Rod Supports- Thompson Lightning Protection XA66. Provide and install approx. 27 lightning cable clamps, Thompson Lightning Protection # A730.

Provide 75 LF of metal siding to cover the existing brick along the inside of the parapet walls.

Approximate height of panels is 48 inches high. Install this siding on 1” galvanized steel hat channels that are expansion bolted to the existing brick. The new coping along the top of the parapet walls shall be fabricated to accommodate the siding installation. The corrugated siding panel shall be galvanized steel, bronze in color, and 20 gauge. Provide stainless steel screws with matching bronze covers. S &J Sheet Metal Supply (L.I. Tinsmith Supply) meets this specification.

Photo 4- Roof C- Note (15) 4 “ pipes, (1) roof drain, (1) vent. Remove and dispose of existing 2’ x 2’ paving stones. Coping system will be replaced in kind. Metal panel wall siding will be installed over brick wall. Reinstall roof hatch safety rail. Paint piping and boxes for antenna supports and existing ladder. Provide 100‘of coping to be replaced in kind for Roof C.

Photo 5- Roof C- Note (15) 4 “ pipes, (1) roof drain, (1) vent, (1) roof hatch. Remove and dispose of existing 2’ x 2’ paving stones. Coping system will be replaced in kind. Metal panel wall siding will be installed over brick wall.

Roof C1- ACM Present and Concrete Roof Deck

Small roof adjacent to roof C.

The dimensions are 5’ x 22’ and the roof shall be demolished (with asbestos abatement) and have a new roof installed as per the requirements for Roof C above. There is (1) plumbing vent, replace the through the wall scupper and roof leader, provide a new concrete splash block.

Provide 60 LF of metal siding to cover the existing brick along the inside of the parapet walls, approximate height of panels is 48 inches high. Install this siding on 1” galvanized steel hat channels that are expansion bolted to the existing brick. The new coping along the top of the parapet walls shall be fabricated to accommodate the siding installation. The corrugated siding panel shall be galvanized steel, bronze in color, and 20 gauge. Provide stainless steel screws with matching bronze covers.

Replace 60 LF of coping – coping shall accommodate new siding panels and existing conditions (field measure). Remove and replace lightning protection system.

Provide 20’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Roof C1- Note existing conditions, install metal siding panels along brick wall. Provide new coping to accommodate siding panels. Prep and paint access ladder (2) coats.

Admin Roof D-

Admin Wing Hallway- Steel Deck- ACM Present

The roof is approximately 38’ x 12’ (contractor to field verify). The existing roof has been tested and there is Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing metal roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” roof board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. Coping system will be replaced in kind.

The roof insulation and roof board shall be installed using Roof Screws and washers as per the manufacturer’s requirements. The roof washers need to be compatible with the Electromagnetic Induction Welded TPO roofing system. Provide the new Electromagnetic Induction Welded TPO membrane roof system for the approximately 460 sq. ft. Roof (field verify roof area) as per the manufactures recommendations (Carlisle’s RhinoBond System meets this specification). See the attached specification for TPO Roofing System for additional requirements. The installation of the new roof shall begin at 4:00 AM in order to install the roof screws into the metal decking prior to 7:30 AM.

The contractor will install a new through wall copper flashing system wherever new roofing meets a masonry wall. The contractor will remove (2) courses of brick, in 5’ sections, to support the masonry wall above. New copper flashing will be installed to cover the new brick and return up the structural wall behind the brick. The contractor shall install continuous adhered EPDM flashing from the new copper flashing to the structural wall behind the brick. The brick and mortar shall be replaced for the (2) courses removed. New brick shall match existing (provide a sample to the FAA for approval prior to installation). New weep tubes shall be installed 18” on center. There is 12 feet of masonry wall in this area to install the new through wall flashing.

The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (1) roof drain.

Provide new Retrofit style roof drains for each existing roof drain. The retrofit drains shall be constructed of 16-gage, type 304 construction with heavy-duty Dura-Coated cast iron dome strainer.

Dura-Coated cast iron clamp device with integral gravel guard. Zurn RD2150-SS4 Commercial Stainless Steel Replacement Roof Drain meets this specification.

Install tapered insulation as required to insure no roof ponding is present after the roof is completed.

Install roof crickets between roof drains.

Remove and replace the Lightning Protection system. Provide and install new Thompson Lightning protection cable clamps, lightning rod supports and lightning rods. Mark lightning cables before removing them for re-roofing. Save all cables connectors and other hardware. Provide and install (4) new Lightning Rod Supports- Thompson Lightning Protection XA66. Provide and install approx. 20 lightning cable clamps, Thompson Lightning Protection # A730.

Provide 50’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Safety Railing System on this roof (aprox 80 LF), all new bases for the Safety Railing shall be

Roof D- Admin Hallway. Note lightning protection to be removed and replaced. Note Roof Drain to be replaced.

Roof D- Install new through wall flashing where roof meets existing brick wall.

Roof E-

Telco Wing North- Steel Deck- ACM Present

The roof is approximately 34’ x 43‘ (contractor to field verify). The existing roof has been tested and there is Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing metal roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” roof board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The contractor shall leave the existing parapet walls and wood blocking in place. Repair existing wood blocking as required with new pressure treated lumber and cover wood blocking and roof cant or parapet with roof board. Install roof membrane over existing parapet or roof cant. Coping system will be replaced in kind.

The roof insulation and roof board shall be installed using Roof Screws and washers as per the manufacturer’s requirements. The roof washers need to be compatible with the Electromagnetic Induction Welded TPO roofing system. Provide the new Electromagnetic Induction Welded TPO membrane roof system for the approximately sq. ft. 1462 Roof (field verify roof area) as per the manufactures recommendations (Carlisle’s RhinoBond System meets this specification). See the attached specification for TPO Roofing System for additional requirements. The installation of the new roof shall begin at 4:00 AM in order to install the roof screws into the metal decking prior to 7:30 AM.

The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (1) roof drain and provide new sheetmetal outside air intake (match existing) and flash this duct penetration.

Install tapered insulation as required to insure no roof ponding is present after the roof is completed.

Install roof crickets between roof drains. Install a large roof cricket (tapered insulation) adjacent to the existing roof access door.

Remove and replace the Lightning Protection system. Provide and install new Thompson Lightning protection cable clamps, lightning rod supports and lightning rods. Mark lightning cables before removing them for re-roofing. Save all cables connectors and other hardware. Replace (1) 5’ lightning rods down the center of the roof with associated 4’ Thompson Lighting rod Supports (Thompson 83- 5AA), new 5’ rods. Provide and install (2) new Lightning Rod Supports- Thompson Lightning Protection XA66. Provide and install approx. 25 lightning cable clamps, Thompson Lightning Protection # A730.

Provide 75’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Safety Railing System on this roof (aprox 35 LF), all new bases for the Safety Railing shall

Roof E extends from the brick wall to the expansion joint. The expansion joint will be replaced. Note the roof drain and the sheet metal outside air ductwork to be replaced and flashed. Replace roof expansion joint to match existing.

The existing hollow metal door shall be replaced with a smaller door and new frame (provide new continuous door hinge and weather stripping). Remount closer and lockset. Provide new brick to raise door sill 8”. Provide new brick to install new smaller welded frame in existing opening. Paint new door and frame (2) coats.

Replace outside air intake with new-galvanized 18 ga. sheet metal hood (with insect screen with radius elbow). Contractor to field measure.

Roof F-

Telco Wing South- Steel Deck- No ACM Present

The roof is approximately 86’ x 42’ (contractor to field verify). The existing roof has been tested and there are no Asbestos Containing Materials in the existing roof material. Demolish the existing roof and insulation down to the existing metal roof decking below in accordance with the specification.

Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” roof board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The contractor shall leave the existing parapet walls and wood blocking in place. Repair existing wood blocking as required with new pressure treated lumber and cover wood blocking and roof cant or parapet with roof board. Install roof membrane over existing parapet or roof cant. Coping system will be replaced in kind.

The roof insulation and roof board shall be installed using Roof Screws and washers as per the manufacturer’s requirements. The roof washers need to be compatible with the Electromagnetic Induction Welded TPO roofing system. Provide the new Electromagnetic Induction Welded TPO membrane roof system for the approximately 3620 sq. ft. Roof (field verify roof area) as per the manufactures recommendations (Carlisle’s RhinoBond System meets this specification). See the attached specification for TPO Roofing System for additional requirements. The installation of the new roof shall begin at 4:00 AM in order to install the roof screws into the metal decking prior to 7:30 AM.

The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (2) roof drains.

Provide new Retrofit style roof drains for each existing roof drain. The retrofit drains shall be constructed of 16-gage, type 304 construction with heavy-duty Dura-Coated cast iron dome strainer.

Dura-Coated cast iron clamp device with integral gravel guard. Zurn RD2150-SS4 Commercial Stainless Steel Replacement Roof Drain meets this specification.

Install tapered insulation as required to insure no roof ponding is present after the roof is completed.

Install roof crickets between roof drains.

Remove and replace the Lightning Protection system. Provide and install new Thompson Lightning protection cable clamps, lightning rod supports and lightning rods. Mark lightning cables before removing them for re-roofing. Save all cables connectors and other hardware. Replace (2) 5’ lightning rods down the center of the roof with associated 4’ Thompson Lighting Rod Supports (Thompson 83- 5AA), new 5’ rods. Provide and install (7) new Lightning Rod Supports- Thompson Lightning Protection XA66. Provide and install approx. 50 lightning cable clamps, Thompson Lightning Protection # A730.

Provide 225’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Safety Railing System on this roof (approx. 115 LF), all new bases for the Safety Railing shall

Roof F- extends from the expansion joint to the end of the Telco Wing (shown with the arrow). The expansion joint will be replaced.

Replace expansion joint.

Roof G-

Telco Wing Small Roof- Steel Deck- ACM Present

The roof is approximately 15’ x 8’ (contractor to field verify). The existing roof has been tested and there is Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing metal roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” roof board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The contractor shall leave the existing parapet walls and wood blocking in place. Repair existing wood blocking as required with new pressure treated lumber and cover wood blocking and roof cant or parapet with roof board. Install roof membrane over existing parapet or roof cant. Coping system will be replaced in kind.

The roof insulation and roof board shall be installed using Roof Screws and washers as per the manufacturer’s requirements. The roof washers need to be compatible with the Electromagnetic Induction Welded TPO roofing system. Provide the new Electromagnetic Induction Welded TPO membrane roof system for the approximately 120 sq. ft. Roof (field verify roof area) as per the manufactures recommendations (Carlisle’s RhinoBond System meets this specification). See the attached specification for TPO Roofing System for additional requirements. The installation of the new roof shall begin at 4:00 AM in order to install the roof screws into the metal decking prior to 7:30 AM.

The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (1) roof scupper- provide new thru wall sheet metal scupper box ; 6” x 6” leader and concrete splash block. Flash (1) vent pipe. Install tapered insulation as required to insure no roof ponding.

Provide roof expansion joint to match existing conditions.

Remove and replace the Lightning Protection system. Provide and install new Thompson Lightning protection cable clamps, lightning rod supports and lightning rods. Mark lightning cables before removing them for re-roofing. Save all cables connectors and other hardware. Provide and install (1) new Lightning Rod Supports- Thompson Lightning Protection XA66. Provide and install approx. 10 lightning cable clamps, Thompson Lightning Protection # A730..

Provide 15’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Safety Railing System on this roof (aprox 15 LF), all new bases for the Safety Railing shall be

Roof G- Demolish Roof to metal deck and replace in kind. Coping system replaced in kind. Replace scupper, provide new leader.

Roof G- Demolish Roof to metal deck and replace in kind. Replace roof expansion joint. Remove the bottom section of siding to terminate and flash new roof system and reinstall the siding to match existing.

Replace expansion joint

Provide new scupper and leader.

Support Wing (Cafeteria) Roof – Roof J

Cafeteria Roof- Steel Deck- No ACM Present

The roof is 100’ x 67’ (contractor to field verify). The existing roof has been tested and there is no Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing metal roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift.

Insure that the roof is water tight at the end of the work shift.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” roof board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The contractor shall leave the existing parapet walls and wood blocking in place. Repair existing wood blocking as required with new pressure treated lumber and cover wood blocking and roof cant or parapet with roof board. Install roof membrane over existing parapet or roof cant. Coping system will be replaced in kind.

The roof insulation and roof board shall be installed using Roof Screws and washers as per the manufacturer’s requirements. The roof washers need to be compatible with the Electromagnetic Induction Welded TPO roofing system. Provide the new Electromagnetic Induction Welded TPO membrane roof system for the approximately 6700 sq. ft. Roof (field verify roof area) as per the manufactures recommendations (Carlisle’s RhinoBond System meets this specification). See the attached specification for TPO Roofing System for additional requirements. The installation of the new roof shall begin at 4:00 AM in order to install the roof screws into the metal decking prior to 7:30 AM.

Install new TPO membrane over the parapet walls and wood blocking/roof cant at the edge of the roof.

The contractor shall install new coping to match existing conditions. The contractor shall verify the following conditions that need to be flashed as part of the new TPO Roof System- (6) roof drains; (5) plumbing vents; and (6) large curb mounted exhaust fans.

Provide new Retrofit style roof drains for each existing roof drain. The retrofit drains shall be constructed of 16-gage, type 304 construction with heavy-duty Dura-Coated cast iron dome strainer.

Dura-Coated cast iron clamp device with integral gravel guard. Zurn RD2150-SS4 Commercial Stainless Steel Replacement Roof Drain meets this specification.

Install tapered insulation, ie –roof crickets between roof drains to insure no roof ponding.

Remove and replace existing electrical lighting conduits and boxes along the perimeter of the roof (approx. 225 LF). New conduit shall be ¾” Galvanized Rigid Steel with solid THHN wiring (including a green insulated ground conductor in each conduit. New electrical boxes shall be waterproof- FS type hub type boxes and condellets shall be cast type. Remove and replace the (4) existing floodlights with new 400 watt High Pressure Sodium HPS lights and associated bases (RAB MEGS400SFQT meets this specification). There is an existing Floodlight for the flag pole that need to be connected to the new conduit run and reinstalled.

removing them for re-roofing. Save all cables connectors and other hardware. Replace (2) 5’ lightning rods down the center of the roof with associated 4’ Thompson Lighting rod Supports (Thompson 83- 5AA), new 5’ rods. Provide and install (13) new Lightning Rod Supports- Thompson Lightning Protection XA66 and 2’ new lightning rods. Provide and install approx. 90 lightning cable clamps, Thompson Lightning Protection # A730.

Provide 325’ of new rolled walkway surface, hot air welded to the new TPO membrane roof. The location of the walkways surface shall be as directed by the FAA Resident Engineer.

Provide new Safety Railing System on this roof (aprox 270 LF), all new bases for the Safety Railing shall

Roof J- Note the paving stones to be removed, large exhaust fans to be re-flashed. Three large kitchen fans can only be removed from service between 4 AM and 6 AM or between 5 PM and 6 AM.

Roof J- Note pavers to be removed. Note exhaust Fans and perimeter coping detail.

Additional Requirements-

Example of self-supporting scaffold required for contractor’s access to the roof. Provide chain link fence around scaffolding to restrict access to the scaffolding.

Wire brush, prime and paint-two coats - (6) similar ladders some are larger and (2) sided (verify in the field).

Wire brush, prime and paint-two coats existing 4” pipe supports and electrical boxes on Roof C.

Architectural Railing- Fiberglass construction, 42” high with mid rail and base plate. Provide a protective pad below each baseplate. Provide all required inter connecting hardware. Blue Water Safety Rail 2000 FG meets this specification. Provide on all roofs to meet OSHA and FAA safety requirements.

Photo is taken outside Roof C1. The photo shows an example of the siding panel to be installed on the inside wall along the perimeter of Roof C and Roof C1. Example of the (6) ladders to be painted. Note the thru wall scupper and leader to be replaced at Roof C1.

Attached is the Assembly Letter from Carlisle all metal deck roofs and concrete deck roofs. This is the basis of design for the project and is provided for information only.

Bid Alternate Number 1-

Provide Separate Pricing for the Following Items-

Building Support Wing Roof H- (Included in the Bid Alternate )

Stair # 4 Roof- Concrete Deck- No ACM

The roof is approximately 23’ x 35’ (contractor to field verify). The existing roof has been tested and there is no Asbestos Containing Materials in the existing roof material. Dispose of all existing roofing material as asbestos containing material, separation of waste will note be allowed. Demolish the existing roof and insulation down to the existing concrete roof decking below, as part of an asbestos abatement in accordance with the specification. Demolish only what can be re-roofed at the end of a work shift. Insure that the roof is water tight at the end of the work shift.

There are (6) large abandoned pads that extend above the roof surface that will need to be considered when roofing this area. There is also a 2’ x 12’ ledge that will require it’s exiting EPDM Roofing to be demolished and new TPO membrane installed, flash as required.

Install new R-30 Rigid polyisocyanurate roof insulation and new high density 5/8” board (USG SECUROCK Gypsum-Fiber Roof Board meets the specification) to the existing roof deck. The roof insulation and roof board shall be installed using a Low Odor two part polyurethane adhesive as per manufacturer’s requirements(Carlisle’s FAST Adhesive meets this specification). Provide a fully adhered Fleece Back TPO membrane roof system for the approximate 805 sq. ft. roof (field verify roof area). See the attached specification for TPO Roofing material product data. The Fleece Back TPO roof system shall be installed using a Low Odor two part polyurethane adhesive as per the manufactures recommendations (Carlisle’s FAST Adhesive meets this specification). Install tapered insulation to insure no roof ponding.

Install new 2” x 12” Pressure treated lumber along the top of the parapet walls and…