B_150_Amendment_0002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Incorporate Wage Determination VT170025 07/14/2017 VT 25 Modification Number 1 07/14/2017 into Solicitation. Incorporate Questions and Answ ers FINAL 24 Jul 2017. Issue Amendent 0002 Text and referenced Draw ings and Specification Section.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 26

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 24-Jul-2017

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912LN-17-B-1001

X 9B. DATED (SEE ITEM 11)

14-Jun-2017

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

24-Jul-2017

CODE

158 FW/MSC (F9P3MC)

VERMONT AIR NATIONAL GUARD - WAWF W912LN

45 NCO DRIVE SUITE A

SOUTH BURLINGTON VT 05403-5873

W912LN 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912LN-17-B-1001

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0002

W912LN‐17‐B‐1001

F‐35 ALTER BLDG 150 MX HANGAR POWER AND INST. EQUIPMENT ALL SPOTS

CURZ152802

Amendment 0002

1. SOLICITATION SPECIFICATIONS

The following changes are made to the project solicitation specifications.

A. Specification Section 03 35 43 Polished Concrete Finishing

Attached Specification Section 03 35 43 has been added in its entirety.

B. Specification Section 07 61 14.00 20 STEEL STANDING SEAM ROOFING

ADD

1.1 References

ASTM E 1646

ASTM E 2140

ICC – ES AC166

ADD

1.6.3. Manufacturer’s Technical Representative

a. Manufacturer’s Inspection: Provide manufacturer’s field observations at start-up and a final inspection upon completion of the work for monitoring for Specification Compliance at no additional cost to the Owner.

1) Warranty shall be issued upon manufacturer’s acceptance of the installation.

2) Field observations shall be performed by a Technical Representative employed full-time by the manufacturer and whose primary job description is to assist, inspect, and approve membrane installations for the manufacturer.

3) Provide a final report from the Technical Representative, certifying that the roofing system has been satisfactorily installed according to the Project Specifications, approved details, and good general roofing practice.

DELETE

1.7. – Warranty Furnish manufacturer's no-dollar-limit materials and workmanship warranty for the roofing system.

The warranty period shall be not less than 20 years from the date of Government acceptance of the work.

The warranty shall be issued directly to the Government. The warranty shall provide that if within the warranty period the metal roofing system becomes non-watertight or shows evidence of corrosion, perforation, rupture or excess weathering due to deterioration of the roofing system resulting from defective materials or installed workmanship the repair or replacement of the defective materials and correction of the defective workmanship shall be the responsibility of the roofing system manufacturer.

Repairs that become necessary because of defective materials and workmanship while roofing is under warranty shall be performed within 7 days after notification, unless additional time is approved by the

Contracting Officer. Failure to perform repairs within the specified period of time will constitute grounds for having the repairs performed by others and the cost billed to the manufacturer. The Contractor shall also provide a 2 year contractor installation warranty.

ADD

1.7. – Warranty Furnish manufacturer’s 30 year no-dollar-limit watertight warranty. The warranty shall be issued directly to the Government. The warranty shall provide that if within the warranty period the metal roofing system becomes non-watertight or shows evidence of corrosion, perforation, rupture or excess weathering due to deterioration of the roofing system resulting from defective materials or installed workmanship the repair or replacement of the defective materials and correction of the defective workmanship shall be the responsibility of the roofing system manufacturer. Repairs that become necessary because of defective materials and workmanship while roofing is under warranty shall be performed within 7 days after notification, unless additional time is approved by the Contracting Officer.

Failure to perform repairs within the specified period of time will constitute grounds for having the repairs performed by others and the cost billed to the manufacturer. The Contractor shall also provide a 2 year warranty covering roofing system installation and water tightness.

DELETE

2.1 – Structural Standing Seam Roofing Panels Panels shall have interlocking ribs for securing adjacent sheets. System for securing the roof covering to structural framing members shall be concealed clip fastening system with no fasteners penetrating the panels except at the ridge or eave, rakes, penetrations, and end laps. Backing plates and ends of panels at end laps shall be predrilled or prepunched; factory prepare ends of panels to be lapped by trimming part of seam, die-setting or swaging ends of panels. Length of sheets shall be sufficient to cover the entire length of any unbroken roof slope when such slope is 30 feet or less. When length of run exceeds 30 feet, each sheet in the run shall extend over two or more spans. Sheets longer than 30 feet may be furnished if approved by the Contracting Officer. Width of sheets shall provide not less than 12 inches of coverage in place. Height of corrugations of adjacent roof sheets shall be not less than 2 inches (nominal).

Make provisions for expansion and contraction at either ridge or eave, consistent with the type of system to be used. Panels from coil stock shall be formed without warping, waviness or ripples not part of the panel profile and shall be free of damage to the finish coating system.

ADD

2.1 – Structural Standing Seam Roofing Panels Panels shall have interlocking ribs for securing adjacent sheets. System for securing the roof covering to structural framing members shall be concealed clip fastening system with no fasteners penetrating the panels except at the ridge or eave, rakes, penetrations, and end laps. Backing plates and ends of panels at end laps shall be predrilled or prepunched; factory prepare ends of panels to be lapped by trimming part of seam, die-setting or swaging ends of panels. Length of sheets shall be sufficient to cover entire roof.

Height of seams of roof sheets shall be not less than 2-3/8” inches (nominal). Make provisions for expansion and contraction at either ridge or eave, consistent with the type of system to be used. Panels from coil stock shall be formed without warping, waviness or ripples not part of the panel profile and shall be free of damage to the finish coating system.

2.1.1 System Type - Structural Standing Seam Metal Roof

Mechanically seamed, concealed fastener, designed for minimum roof slope of 1.5:12, double lock, 22 gage, 18 inch wide panels. Basis of design or equal: Centria SRS 3. Acceptable equal: Morin SLR "Double Lock," Englert Series 2500 180 degree seam.

2.1.1 System Type - Structural Standing Seam Metal Roof

Mechanically seamed, concealed fastener, designed for minimum roof slope of 1.5:12, double lock, 22 gage, 18 inch wide panels. Basis of design or equal: Garland R-Mer Span; McElroy 238T, Merchant & Evans Zip-Rib, or other product meeting project specifications.

C. Specification Section 08 44 00 D.

DELETE

2.1 System Description

a. Curtain Wall System - YKK 750 XT High Performance Wall with Dual Thermal Barriers.

2.1 System Description

a. Curtain Wall System – YKK 300 OG Hurricane Impact and Blast Mitigation Curtain Wall System.

2.1 b. Curtain Wall Framing System:

(1) Description: Framing shall be thermally broken. Horizontal and vertical framing members shall have a nominal face dimension of 2-1/2 inches. Depth 6 inches or 7-1/2 inches (as required). Framing system shall provide a flush glazed appearance on all sides with no protruding glass stops.

E. Specification Section 26 20 00

1.1 UL 4 (2004; Reprint Oct 2013) Standard for Armored Cable

2.7.6 Mineral-Insulated, Metal-Sheathed Cable

UL listed; NFPA 70, Type MI cable. Do not use sheathing containing asbestos fibers.

1.7.7 Armored Cable

UL 4; NFPA 70, Type AC cable.

3.1.23 Mineral Insulated, Metal Sheathed (Type MI) Cable Installation

Mineral-insulated, metal-sheathed cable system, Type MI, may be used in lieu of exposed conduit and wiring. Conductor sizes: not less than those indicated for the conduit installation. Fasten cables within 305 mm 12 inches of each turn or offset and at 830 mm 33 inches maximum intervals. Make cable terminations in accordance with NFPA 70 and cable manufacturer's recommendations. Terminate single-conductor cables of a circuit, having capacities of more than 50 amperes, in a single box or cabinet opening. Color code individual conductors in all outlets and cabinets.

3.1.5.3 Armored Cable

Install in accordance with NFPA 70, Type AC cable.

2. SOLICITATION DRAWINGS

Changes are made to the attached solicitation drawings. A summary of changes made to each drawing is listed below.

Drawing AD-001 Note 25 Deleted, revised to ‘Not Used’

Drawing A-111 Revised partition types.

Drawing A-112 Revised partition types.

Drawing A-113 Revised partition types.

Drawing A-114 Revised partition types.

Drawing A-115 Revised partition types.

Drawing A-151 Changed following rooms from “exposed ceiling” to “2x2 acoustical ceiling tile (ACT-1)”:

Room 115 – QA Room 151 – Avionics Room 154 – ALIS Work Room Room 155 - APG

Drawing A-153 Changed Room 115 ceiling from “exposed ceiling” to “2x2 acoustical ceiling tile (ACT-1)”. Light fixtures and HVAC diffusers were updated to reflect ceiling type.

Drawing A-154 Changed following rooms from “exposed ceiling” to “2x2 acoustical ceiling tile (ACT-1)”: Light fixtures and HVAC diffusers were updated to reflect ceiling type.

Room 151 – Avionics Room 154 – ALIS Work Room Room 155 - APG

Drawing A-156 Added ATC and added light fixtures in room 209.

Added lights in room 210.

Drawing A-201 D-1, delete note “Existing corrugated metal siding to remain.”

Drawing A-412 Revised partition types.

Drawing A-431 Revised partition types.

Drawing A-501 Add Partition Types General Note 9: Head and base details do not apply for partitions utilized to infill opening in an existing wall. Infill wall shall result in continuous finished surface.

Add Partition Type S1 note “S1BA – Infill wall only” Changed head detail for partition type S1AA to B3/A511. Changed type comments to include partial height. Updated detail at head to show diagonal bracing typical for partial height partitions.

Changed head detail for partition type S1AC to B3/A511. Changed type comments to reference general note 8 in lieu of general note 9.

Changed head detail for partition type S2AB to B3/A511. Changed type comment to include partial height.

Included elevation for partial height partitions.

Updated schedules to remove any unused partition types. Partition types removed from schedules are listed below:

o S3AA o S1AB o S1AE

Drawing A-701 Add General Note 25: Plan north for all rooms is top of sheet.

Add General Note 26: Polished Concrete, see specification 03 35 43 Polished Concrete Finishing.

Changed room 115 ceiling from PA-5 to ACT-1 Changed room 138 ceiling from ACT-1 to PE-2 Changed room 151 ceiling from PA-5 to ACT-1 Changed room 151 ceiling from PA-5 to ACT-1 Changed room 160 North wall from RES-1 to RES-3 Changed room 168 North wall from RES-1 to RES-3 Changed room 169 North, East & West wall from RES-1 to RES-3 Changed room 206 South wall from RES-1 to RES-3 Changed room 209 ceiling from PA-5 to ACT-1

Drawing A-741 Deleted note 11 regarding graphic art murals.

Drawing M-102 Updated ductwork, diffusers, and grilles located in Room 115 – QA from an exposed ductwork system to coordinate with suspended ceiling.

Drawing M-103 Updated ductwork, diffusers, and grilles located in Rooms 151 – Avionics, Room 154 – ALIS Work Room, and Room 155 - APG from an exposed ductwork system to coordinate with suspended ceiling.

Drawing M-602 Updated Return and Transfer Air Schedule – 4 return grilles changed.

Drawing E-122 Revised lighting in Room 115 - QA to coordinate with new ceiling layout.

Drawing E-123 Revised lighting in Room 151- Avionics, Room 154- ALIS Work Room, and Room 155- APG to coordinate with new ceiling layout.

Drawing E-126 Revised lighting in Room 209-landing and 210-ELEV lobby to coordinate with new ceiling layout. Added light to stair ST02-1.

Drawing E Updated fi

QUES

1. Quest AWB sys Perm-A-B Answer –

VP.

2. Quest would ap removabl more cos Answer –

3. Quest 601-C) re generator

Answer –

4. Quest humidifie fans and "precond proprieta the equip Answer – shall prov

5. Quest Is line ite

E-601 ire pump feede

STIONS & AN

F‐35 ALT

tion: Is the fo stem can me Barrier VP c

– GE ELEM

tion: Please s ppreciate con le water-coll st-effective.

– Dualflow P tion: I came egarding the r outside of t

– The genera tion: Mfg na er, ATC, and pumps. One ditioned air s ary (or if not pment reps to

– For produc vide equipm tion: On the em 0006 the rs size and qua

NSWERS

ER BLDG 150

ollowing an eet the specif currently list

MAX 2600 A

see attached nsideration a lecting tank

Plus M14AC across this p e generator.

the scope of ator is not pa ames for basi d the VFD,s e item in par system" (aka at least 3 na o be aware o cts that a bas ment that mee bid form, lin total of line antity. Revised

W912

MX HANGAR

CU

QUESTIO

FIN

acceptable s fication requ ted in the spe

AWB system substitution as an equal s for excess w

CS-UL is an project and s Is it an exist f this contrac art of the pro is of design a . However, rticular, the b a CAS). Sinc ames) needs of this projec sis of design ets the equip ne item 0006 s 0006AA, 0 d MTS connect

2LN‐17‐B‐100

R POWER AND

URZ152802

ONS and ANSW

NAL 7/24/17

substitution o uirements an ecifications.

is an accept n request for ubstitution.

water that he acceptable p saw the below ting generato ct?

oject. It will are listed in no basis is l basis of desi ce the CAS i to be provid ct.

manufactur pment projec

6 Option #3 0006AB and tion to normal p

D INST. EQUIP

WERS

on this proje nd could be a table alternat the hand dry Our Dualflo elps prevent s product for h w notation o or or will yo be owner fu the specifica listed for RT ign, is seriou is special eq ded. Please p rer has not be ct specificati

Compressed d 0006AC?

W power instead

PMENT ALL SP

ect - GE ELE an alternate t te to Grace, yers on the a ow Plus com spills on the hand dryers.

on the electri ou be procuri urnished and ations for th

TU, CRAC, V

usly missing quipment this provide quic een provided ons.

d Air System

W912LN-17-B

of backup.

POTS

EMAX 2600

to the Grace

Perm-A- Ba above projec mes with a floor and is ical drawing ing a new owner insta e boiler, VAV, MAU for the s mfg if ckly in order d, the contra ms has three p

B-1001 arrier

ct. I s also g (E-alled.

U, r for actor parts.

Answer – CLIN 0006 is comprised of three sub-elements 0006AA, 0006AB, and 0006AC.

Contractors only need to provide pricing information for each sub element, not a total price for

CLIN 0006.

6. Question: Who provides the builders risk insurance for this project? If it's provided by the owner what is the deductible amount?

Answer – There is no builders risk insurance required on this project.

7. Question: Who carries the cost for asbestos abatement?

Answer – The Contractor is responsible for asbestos abatement costs.

8. Question: Spec section 01 45 00.00 10 Quality Control, calls for us to have full time employees as noted in the matrix on page 5. Please clarify how many of these people listed need to be employed by the general contractor for this project?

Answer – As part of the CQC organization, the contractor shall provide specialized personnel to assist the CQX Manager for the following areas: Electrical, Mechanical, Structural, Architectural, Materials Technician, and Submittal Clerk. Refer to Specification 01 45 00.00 10 Paragraph 3.4.3 for additional information.

9. Question: Who pays for the sitework compaction testing, concrete testing and other field testing?

Answer – The Contractor is responsible for all costs associated with required sitework, concrete, and field testing.

10. Question: I would like to formally request a bid extension of at least one week due to the July Fourth holiday.

Answer – The government is strongly considering a bid extension. Exact length of time will be formalized in Amendment 0001.

11. Question: The product specified for the curtainwall is not a blast product it is a standard curtainwall double thermal product but will not meet blast requirements. Can we quote you the curtainwall that will meet the blast requirements instead?

Answer – Curtain wall system shall be equivalent to YKK 300 OG Hurricane Impact and Blast Mitigation Curtain Wall System.

12. Question: SECTION 00010 NOTES; Item No. 13. Is the Contractor Manpower Reporting in addition to OR in replacement of submitting the U.S. Department of Labor OMB No. 1215-0149 form reporting for certified payrolls?

Answer – Contractor Manpower Reporting is in addition to Department of Labor payroll requirements.

13. Question: SECTION 00010 NOTES; Item No. 13: Is the Contractor Manpower Reporting organized by FSC code? In other words, hours and their dollar values are reported by FSC code versus by day as is reported on the OMB No. 1215-0149 WHD form currently?

Answer – Contractor Manpower Reporting is organized by FSC code. The government will provide the FSC code for this project. Reporting period will be the period of performance not to exceed 12 months ending September 30 of each government fiscal year and must be reported by 31 October of each calendar year. Contractor must report Direct Labor Hours on the project and Direct Labor Cost on the project.

14. Question: Invoicing and Payment: Does the owner have set retainage requirements for the project?

Answer – See FAR Clause 52.232-5 (e) for details. In general, Contracting Officer shall authorize monthly progress payments in full as long as the Contractor is making satisfactory progress.

15. Question: BID OPTION #2 / AFI #2 is described as being comprised of three (3) equal converters but Drawing E-402 shows elevations for five (5) positions, ie five equal converters.

Shall we include quantity of three (3) or quantity of five (5) in the bid option?

Answer – There are five (5) equal converters in this project. The solicitation BID OPTION #2 will be officially corrected by Addendum to reflect the correct number of converters..

16. Question: What length of 270 volt dc power cable should be provided in the cable reels shown on Drawing E-402?

Answer – Provide 60ft cables for Aircraft Positions 1, 2, and 4. Provide 70ft cables for Aircraft positions 3 and 5.

17. Question: I did not see any specification describing the operating requirements for the 270 volt dc reels shown on Drawing E-402.

a - Are these to be motorized or manual cable reels?

Answer – The reels shall be motorized.

b - Are these to be enclosed or can they be provided without an enclosure?

Answer – Reels can be provided without an enclosure.

c - If these are motorized can they be manual feed and motorized retrieval?

Answer – Reels shall be motorized for both the feed and retrieval.

18. Question: Would the government be acceptable to changing Specification 26 35 44 Paragraph 2.21.9 enclosure rating from NEMA 12K to read NEMA 4. Most military aircraft hangars operate a deluge system that can hazard equipment. NEMA 4 offers a higher degree of protection than NEMA 12K with respect to expanding foam.

Answer – NEMA 4 Enclosure will not be required.

19. Question: Section 23 00 99: Aircraft, Preconditioned Air Units, Piping, and Accessories:

1.3.2 Performance Requirements

Mass airflow rate or pounds per minutes is specified at 46.5 (+/- 1). The variation allowance of +/- 1 is a very tight tolerance to hold. Our unit produces a minimum of 45 pounds per minute, but variations over 46 may be seen. May our standard aircraft preconditioned air unit’s PPM variations be accepted?

Answer – Mass airflow rates above 46.5 are acceptable.

20. Question: Section 23 00 99: Aircraft, Preconditioned Air Units, Piping, and Accessories:

2.6.3 Preconditioned Air Flexible Hose

Color is specified as yellow for the flexible duct. May olive drab color be accepted also?

Answer – Olive drab is an acceptable color.

21. Question: Spec section 32 92 23 calls for sodding. Is sod required on this project? If so, what areas receive sod?

Answer – All vegetated areas disturbed during construction shall be re-vegetated with sod.

22. Question: I have seen LEED referenced in the specification. Is this a LEED project? If so, what level of LEED is it?

Answer – This is not a LEED project. LEED references in project specifications will be deleted by Addendum.

23. Question: An aluminum screen wall is called for on A202. The product is Ametco Venetian Line. Is there a specification for this material? What is the finish on this material? Please clarify.

Answer – Screen louvers to be welded V-shaped extruded aluminum main bars 2.625" centers with extruded aluminum framing bars, vertically installed. Screen louvers to be polyster power coated after fabrication, color dark bronze.

24. Question: The vertical lift hangar door upgrades requires us to work closely with the hangar door manufacture. Please provide a hangar door manufacture name and contact information.

Answer – Contacts listed below.

Kitty Duckett: Kitty.duckett@assaabloy.com Zach Kearney: Zach.kearney@assaabloy.com

ASSA ABLOY Entrance Systems Office: 678-782-4781 Fax: 770-631-5721 PO BOX 2957 - 350 Dividend Drive Peachtree City, Georgia 30269

25. Question: Drawings CD 101 and CS 400 show two large portions of slab removal and replacement. Drawings SD100 and S-100 don’t show these areas of slab being replaced. Please clarify.

Answer – Demolition of the hangar slab shall be per the Civil Demolition drawings.

26. Question: Drawings CD101 and SD100 show tension ties for the roof trusses. Are these ties with-in the slab or under it? If in the slab, where are they located with-in the slab?

Answer – Slab is locally thickened and the tension tie is embedded in the slab. Typically, the tie is located towards the bottom surface of the thickened slab.

27. Question: On CD101 it shows us cutting and removing the slab in two areas. It also shows the tension ties running through this area at column lines N through T . If the tension ties are in the slab do we remove the concrete by hand from around them or leave strips of concrete in the crossed hatched areas as shown and pour the new 11” thick slab against them?

Answer – The slab shall be removed in its entirety. How the slab is removed is by contractor means and methods.

28. Question: Drawings SD100 shows removal of slab areas outside of the hangar bay. What is the slab thickness in these areas?

Answer – SD100 only shows demo of slab within the building footprint, please clarify which area is being referred.

29. Question: Where it shows us removing the trench drain along column line N on SD100, will this require us to remove any angles used to support this trench drain cover?

Answer – SD100 is only removing the trench drain cover. Existing drawings do not indicate an embedded steel angle frame.

30. Question: The grounding as shown on EG101 isn’t clear as to what is existing and what is proposed as new. Please see the attached sketch and clarify what is new and what is existing with-in the clouded area. Will additional concrete slab removal be required over and above what is shown on CD101 to install the grounding as shown on EG101?

EG101 Sketch For Grounding RFI.pdf

Answer – All the grounding in the hangar bay is new. See attached sketch for modification to the grounding configuration. Update will be issued in an amendment.

31. Question: Please provide a “basis of design” manufacture for the rigid rail fall protection systems as called for in spec section 11 01 50.

Answer – Basis of design is Gorbel Tether Track. Other manufacturers that meet the project specifications are acceptable.

32. Question: Please provide a “basis of design” manufacture for the barrier gate operator as called for in spec section 32 31 13.

Answer – Gate will be removed as part of Addendum.

33. Question: Please provide a “basis of design” manufacture for the monorail hoists as called for in spec section 41 22 23.19.

Answer – Basis of design is Gorbel trussed track enclosed bridge crane system. Other manufacturers that meet the project specifications are acceptable.

34. Question: I would like to confirm the requirement shown on drawing E-601, related to the electrical feeders for the fire pumps.

The note indicates we are to run (5) sets of 600 MCM cable to each fire pump. Is the accurate?

The NEC only requires the feeder to be rated at 125% of the full load rating of the motor. This would result in approximately a 500 amp service.

Answer – To comply with article 695.7A) and 695.6(A)(2)(D) provide 6 sets of 500 KCMIL MI cabling to maintain a voltage drop less than 15% as well as a fire-resistive cable system.

Secondly, the NEC also requires this feed to be run outside the building. Drawing E-102, note 12 shows these feeders being run within the building. This is a clear code violation.

Answer – NEC article 695.6(A)(2)(D) allows fire pump feeders to be routed inside the building when protected from fire for 2 hours using one of the following methods:

The cable or raceway is encased in a minimum 2” concrete.

The cable or raceway is a listed fire-resistive cable system.

The cable or raceway is a listed electrical circuit protective system.

Cabling will be changed to MI cable and will be (6) sets of 500 MCM cable to each fire pump.

The code requires maximum of 15% voltage drop at locked rotor. (6) sets of 500MCM cable are required to meet voltage drop requirements.

35. Question: Is a perimeter construction fence required for this project? If so, please indicate where it needs to be installed?

Answer – Perimeter construction fence is not required.

36. Question: Are there any information regarding the existing seamless flooring on concrete, where the new spec/epoxy will go? Specifically, is the chemistry, thickness, and manufacturer of the previous fluid applied flooring known?

Answer – Data sheets of products that were used are attached for reference.

pb_ecep.pdf pb_ehps_100.pdf

37. Question: Will detail B2 on A008 apply to all of the exterior walls as noted on Note #3 on

AD001?

Answer – Yes.

38. Question: On S008 detail C4 it shows how to reinforce new masonry openings in existing walls. Interior door 106A and others doors call for detail B2 on A-611 which shows bullnose jamb blocks. Do we grout and install rebar as shown on S008 detail C4 or tooth-in new jamb blocks with a bull nose?

Answer – Grind existing CMU to create bullnose where indicated per architectural.

39. Question: Exterior door 137A and others call for reinforcing per details on S-008. Do we do this per the detail A1 on S-008 as referenced or do we remove blocks and tooth in?

Answer – Detail A1 and B2 on S-008 shall be used.

40. Question: Windows CW8 call for reinforcing per details on S-008. Do we do this per the detail A1 on S-008 as referenced or do we remove blocks and tooth in?

Answer – Detail A1 and B2 on S-008 shall be used.

41. Question: On S-008 details B3 and C4 seem to show us grouting the jambs and reinforce through the header reinforcing. Should this stop at the bottom of the header? If not, what sequence do we use to accomplish this and how high does the jamb reinforcing go?

Answer – Jamb reinforcement shall extend to the roof level. Steel lintel should be installed after the jamb reinforcement is complete (notch horizontal legs of angles to avoid jamb reinforcement). Once the jamb reinforcement and the lintels have been installed, the opening can be created.

42. Question: On A-651 detail A1 it shows a 7" x 3" x 3/8" angle at this opening. What is the purpose of this angle? Is it required?

Answer – Angle is not required. Sill flashing detail has been clarified per attached sketch.

A651 Sketch For Window Sill RFI.pdf

43. Question: During the site visit walkthrough on June 28 2017, it was mentioned a phasing plan was going to be issued for the project in an addendum. Please advise if a phasing plan is still forthcoming in an amendment.

Answer – Communication service construction phasing requirement will be outlined in forthcoming Amendment. This information is provided in Amendment 01.

44. Question: Sheet S-500-D shows specific locations for the fall arrest track connection points to the existing trusses for the four aircraft positions on the outer part of the hangar. However no connection points are shown for the system located along Col. 12 above the bridge crane. Please provide information on where the center system is to be attached to the structure.

Answer – The fall protection system shall be supported from the primary trusses along grids R, S, T, and the column at grid intersection 12-U. Below is a snapshot of the existing connection from the existing drawings, and another snapshot showing connection points.

45. Ques is to have and the b out/tag o /tag out s Answer –

46. Ques underhun there is s Answer – structure sufficient

47. Ques applicabl or just po stion: Note # e a lock out/ bridge crane ut procedure system is req

– Lock out/ta stion: Sheet ng crane. Th ufficient spa

– S-500-D in is estimated t space for th stion: Polish le specificati olished?

#4 on S-500- /tag out syste is a powered e in place an quired for the ag out is for

S-500-D ind he fall restrai ace to install ndicates bott d to be appro he fall protec hed Concrete ion section f

-D indicates em in place.

d system, it i nd not the fal e bridge cran bridge cran dicates that t nt rail is to b l the fall prot tom of steel oximately 5 f ction rail.

e is reference for polished that the fall In that the f is typically t ll restraint sy ne only.

e only.

the hook heig be have botto tection rail.

elevation of feet above th ed on detail A concrete. Is l restraint sys fall restraint the bridge cr ystem. Pleas ght of the cr om elevation f 38'-0" abov he 38'-0" dim

A3 on sheet the polished

W stem above t system is a m rane that wou e confirm th rane is 32'-0" n of 36'-0". P ve finish floo mension. Th

A-701, plea d concrete st

W912LN-17-B

the bridge cr manual syste uld have a lo hat the lock o

" and that it Please confir or, and the ro here should b ase provide a tained & poli

B-1001 rane em ock out is an rm oof be an ished

Answer – Polished concrete is just polished. Specification will be provided as part of Amendment 002.

48. Question: Does the grounding wire, shown on EG101, within the hangar need to buried 30” deep or just below the slab?

Answer – The grounding wire will need to be buried 30” deep.

49. Question: Drawing CU101 shows a 1 ½” gas line being run to the building and P-402 calls for a 2” line. Please clarify.

Answer – A 1 ½” gas line is adequate. See “Natural Gas Utility Notes” for work that will be performed by Contractor vs. work installed by Vermont Gas.

50. Question: Spec Section 32 17 23 calls for pavement markings. Are pavement markings part of the scope of work? If so, where are they?

Answer – Pavement marking outside building 150 are not part of the scope of work.

51. Question: According to the demolition notes on AD001 we can only remove as much roofing as we can replace or cover temporarily in a day. Since the steel decking on much of the roof area is being removed and replaced this method seems impractical. Will we be allowed to have portions of the building exposed while we replace the decking and reinforce the building structure?

Answer – Contractor will be allowed to have portions of building exposed while deck is being replaced and reinforcement of the building structure. All mechanical, electrical, fire protection, etc. items that are to remain are to be covered and protected from the elements.

52. Question: According to a test performed in 2012 asbestos was found on the piping with-in the perimeter trench in the hangar. Is this asbestos material part of the material that needs to be removed as part of this contract?

Answer – Materials within the trench are not being removed. The trench is being filled with concrete per drawing S-100. Please reference asbestos survey report from August 23, 2016 that is included in the project specifications as an attachment to Specification Section 02 82 13.00 10.

53. Question: Spec section 08 71 00 page 9 states products listed in the hardware sets are given as a basis of design, just clarifying that Allegion products may be used, as long as they are equal to the hardware specified.

Answer – Products that are equal to the design hardware are acceptable.

54. Question: The attached section of the sprinkler specifications state that the contractors is responsible for achieving the specified requirements of the bid documents. Our experience in Bldg 150 indicated there may be an issue with water supply into the building.

With this statement in the specs, would we be required to upgrade the water service into the building or possible providing a large water storage tank if the system as designed will not meet the design criteria ?

If the systems requires more gallons per minute then the city water supply can provide does this constitute "System Failure".

Bldg 150 Sprinkler spec .pdf

Please provide additional specific information on referenced water supply issues.

It is the responsibility of the contractor to design the system to the available water supply.

Changes in water supply are not the responsibility of the contractor to correct. In the design, a flow test was conducted and preliminary calculations were performed showing the water supply is capable. The contractor is required to perform their own flow test and their own calculations.

If the flow test between preliminary design and contractors design changes dramatically, the contactor shall submit an RFI so that the issue can be further investigated and a way forward can be determined.

55. Question: The PCA unit we intend to supply is a water cooled unit, not air cooled. Will a chilled water supply via existing water tower or alternate source be available to be piped to each unit? Requested water conditions are: minimum input water properties of 3C and 1.7 liters/s and

4.9 psi pressure drop to comply with existing design.

Answer – Per specification paragraph 230099-2.1.h, air cooled condensers are specified. There is no available cooling tower or water supply to support water cooled equipment, provide air cooled as specified.

56. Question: Drawing E-402-C shows Aircraft Position Elevations which include 100 Amp Service Cart and 100 Amp PAO Cart Service Panels. Are there any available specifications for these devices?

100 AMP CART.pdf

Answer – Refer to attached manufactures data for basis of design.

57. Question: Is it possible that the engineer could provide makes and models for plumbing and mechanical specialty items in spec sections 220000 and 230000 that follow the bases of design for the F-35 Alter Building 150 MX Hanger Power and Inst. Equipment all Spots??

Answer – For products that a basis of design manufacturer has not been provided, the contractor shall provide equipment that meets the equipment project specifications.

58. Question: When will the contractor have access to B150 from the apron side due to current construction project.

Answer - Contractor will have access to B150 from apron side NLT 31 Dec 2017.

Access to this side will have to be coordinated to protect newly installed concrete.

59. Question: As a follow up to Question #28. Please clarify he thickness of the slabs as noted in the attached sketch.

SD-100 Slab Areas Outside Hanger Bay Answer – Slab thickness ranges from 4” to 6” per existing drawings.

60. Question: Since lead paint testing wasn't done on all the various parts of the steel structure in the hanger bay, are we to assume that all of the steel we will be welding reinforcing tees, girts, beams and angles onto will need to have lead abatement done to it before welding can take place?

Answer – Yes.

61. Question: On AD001 under Existing East Wing it says to demolish the structure except for the foundation. On AD011 it calls for demolishing the entire East wing including foundations.

Please clarify.

Answer – Foundation to be demolished as required for new structural foundation as indicated in structural drawings.

62. Question: The drawings call for plastic blocking at the exterior blocking details. Would fire treated wood blocking be an acceptable alternative?

Answer – Treated wood blocking may be used except any blocking at roof which must be plastic lumber, NO WOOD on roof.

63. Question: On the North and South side of the building where the exterior entrance canopy foundations/slabs are not being reused, are we to remove these foundations/slabs?

Answer – Yes

64. Question: There are quite a few new penetrations required through block walls for the new ductwork layout. How are these new duct penetrations treated? Do we use detail B-3 and C-4 on S008 for these?

Some are as wide as 8’ and as small as 10”. What is the maximum size we can cut into the block before we need to install reinforcing?

Answer – B3 and C4 shall be used for new masonry openings in existing walls. Openings less than 12” wide do not require reinforcement. See C3/S-008 for note indicating Contractor to submit masonry wall elevations which illustrate infilled and new openings.

65. Question: There is a note that says “existing corrugated metal siding to remain” near column line N on A-201, elevation D1. Does any of the existing siding remain?

Answer – All existing siding to be removed per AD001 EXTERIOR DEMOLITION: Note 1.

66. Question: Would it be possible to schedule an additional walk through of the building?

Answer – Additional walkthrough is not possible.

67. Question: 26 24 13-2.2.2.1.a calls for a NEMA type 12 enclosure. These are not available in typical UL 891 type switchboards. Some of the breakers require venting for proper interruption. If an unvented switchboard is required (typically due to a dirty environment in the electrical room) a 10 inch front compartment similar to a typical outdoor non-walk in construction can be provided with gasketing.

However, this will not be UL NEMA 12, but will approximate that application. NEMA 12 enclosures are not part of most manufacturers' switchboard offering.

Answer – NEMA type 1 enclosure can be provided.

68. Question: General notes E-001 note 1 shows all electrical raceway to be in conduit. I cannot find in the 26000 specifications that Armored cable is allowed on this project. I would like to make sure that this is correct. It appears that there is opportunity to install Armored cable concealed in walls. Please let me know if this is an acceptable means and methods.

Answer – UFC 520-1 allows AC cable in the following locations as indicated in the table below. AC cable is not allowed to be concealed in the walls. AC Cable will be allowed in exposed location not subject to damage. “Subject to damage” is defined in the UFC as the following:

Exposed interior raceways installed less than 6 ft above finished floor elevation where personnel are operating mechanized equipment on a recurring basis. Mechanized equipment that might be operated on a recurring basis include vehicles, carts, forklifts, and pallet-handling units.

Exposed exterior raceways installed less than 8 ft above finished grade or 8 ft above floor elevation for raceways on elevated platforms, loading docks, or stairwells.

69. Question: Drawing AE011 note #1 references some existing drawings noted as "appendix" documents. Where are these drawings?

Answer – There is no appendix. AE011 Note #1 will be deleted.

70. Question: On AD100 where it calls for masonry block walls to be demolished to the top of the slab, what happens to this area after we demolish the wall? Does the wall continue below the slab and need to be patched or is the block laid directly on the slab on grade? Please clarify.

Answer - If the question is related to interior masonry partitions, the existing drawings indicate masonry is placed directly on top of the slab. For new openings in existing load bearing CMU, existing drawings show a concrete stem wall flush with the top of slab (to remain).

71. Question: As a follow up to the answer to question 52, we were planning on the trench being empty so the top of the trench wall can be cut down 6" as shown on S-301 detail D3. If the trench still has piping wrapped with asbestos insulation, there won't be enough room to mount a saw and cut this wall down with the piping in the way. Is the location of the piping with-in the trench known? How close to the top is it? Additionally, if the piping with asbestos is still in the trench, we will be walking on it and disturbing it as we work around it and try to remove the top 6" of concrete from this trench wall. Please clarify this scope of work.

Answer – Existing drawings indicate the top of the trench wall to be 4” below the top of slab.

Since the piping appears to be in the way of saw cutting, reduce the new slab thickness over the trench from 6” to 4”, so that trench wall will not be required to be cut. Compaction of the fill material is critical..

72. Question: On all of the plan views of the drawings and drawings A-432 and A431 specifically, the bathroom plans are oriented to a compass direction that has North as a 45deg angle to the left. These bathrooms are then keyed to a N, S, E and W orientation in the finish schedule. Please clarify which walls are the North walls. In other words, what is "Plan North", the top of the plan or the left side?

Answer – Plan North is top of plan.

73. Question: Are any new plumbing fixtures being installed in rooms 206 and 207? Does the shower floor drain exist? Does the shower receive a new epoxy shower?

Answer – No new fixtures. Existing plumbing and fixtures on second floor to remain.

74. Question: Please clarify which windows receive mini blinds.

Answer – Per note 11 on A-701: All Exterior/Perimeter windows to receive HB-1 (Horizontal blinds).

75. Question: Are HDPE lockers acceptable.

Answer – Lockers shall be metal as specificied.

76. Question: Is Merchant & Evan Zip-Lock Standing Seam product and acceptable equal.ble Answer – ZIP-RIB is acceptable, but not ZIP-LOC. Specification 07 61 14.00 02 has been revised and will be issued in Amendment 2.

77. Question: On A-741 note #8 references life safety plans and referring to them for fire extinguisher locations and fire extinguisher signage. I don't see any life safety plans showing this information.

Answer – Fire extinguishers are not required per UFC 3-600-01 section 9-17, as this facility is provided with complete automatic sprinkler protection and a fire alarm system in accordance with UFC 3-600-01.

78. Question: Is there a requirement for fire extinguishers and cabinets on this project? If so, please provide a specification and location for installation.

Answer – Fire extinguishers are not required per UFC 3-600-01 section 9-17, as this facility is provided with complete automatic sprinkler protection and a fire alarm system in accordance with UFC 3-600-01.

79. Question: On A-741 note #11 references spec section 12 10 00 and talks about "graphic art murals".

There is no spec section 12 10 00 and graphic art murals are not referenced in the documents. Is this intended to be an allowance item? Please clarify.

Answer – No graphic art murals are included on this project.

80. Question: On A-741 note #13 references a building number sign. Is this referring to sign type G per the sign schedule or some other sign. If some other sign please provide clarification.

Answer – No other building number signage is required

81. Question: Per detail A3 on A741, how many type H signs are there?

Answer – Reference exterior elevation D1/A202 for location.

82. Question: Note #3 on the reflected ceiling plans states ".....All ceiling heights are 9'0" A.F.F. unless noted otherwise." There are no other ceiling heights indicated, which would imply that all ceilings are 9' A.F.F. However, when you look at the building sections on A-301 and A-302 it is clear there are varying ceiling heights. Unfortunately, not all rooms are sliced by a building section. How can we determine ceiling heights?

Answer – Only ceilings not conforming to that note are the gyp ceiling area in Admin 129, the transition between Corridor 136 and 137. All other ceilings shown are 9’ or open to structure.

83. Question: The overall reflected ceiling plan on A-151 and the enlarged plan on A-153 have Egress Office 148 getting an acoustical ceiling, but the finish schedule shows it to be painted and not acoustic.

Please clarify.

Answer – ACT-1 is correct. Drawings to be updated in amendment

84. Question: Rooms 154 and 155 show as non-acoustic on the reflected ceiling plans but as ACT-1 on the room finish schedule. Please clarify.

Answer – ACT-1 is correct, Drawings to be updated in Amendment.

85. Question: Is there any government supplied and general contractor installed FF&E on this project?

Answer – No, indicative FF&E plans shown for reference only.

86. Question: Drawing E-102 Note 12 shows fire pump routing conduit through the building AFF 13'.

Per NEC will this conduit need to be encased in concrete? Or routed outside underground? Can you please specify conduit type once confirmed?

Answer –NEC article 695.6(A)(2)(D) allows fire pump feeders to be routed inside the building when protected from fire for 2 hours using one of the following methods:

The cable or raceway is encased in a minimum 2” concrete.

The cable or raceway is a listed fire-resistive cable system.

The cable or raceway is a listed electrical circuit protective system.

Cabling will be changed to MI cable.

87. Question: Drawing E-601 note 2 shows 5 sets of 600 MCM feeding the fire pump controller from a tap off the secondary of the transformer. Can you make sure that this is the design intent? Suggestion would be to place Locked Rotor sized O.C.P.D outside the transformer and reduce the feeder sizes going to the controllers. Another suggestion would be to tap the line side of MSB to a fused disconnect at Locked rotor sizing decreasing the conduit and wire going to the controllers.

Answer – Locked rotor protection will be provided at the fire pump controller. The fire pump controller shall de-energize the fire pump in locked rotor before the second pump starts. This Protection reduces the overall load considered in the voltage drop calculation. Due to this the fire pump feeders shall be 3 sets of #300 MCM cable to each fire pump.

88. Question: Noted on Details A-351 calling out plastic blocking and the RFI Response that no wood blocking be used, would the OMG Edge, with Insulation, be an acceptable alternative to plastic blocking?

Edge box provides Increased R values, a straight line, does not rot, is recycled.

Edge metal attached to Edge Box meets ANSI-SPRI ES-1

OMG Edge Box product Data.pdf

OMG Edge Box.pdf

Answer – This is acceptable.

89. Question: Question #36 discusses the existing seamless flooring, and where new epoxy will go. the existing plans and demolition plans do not identify the existing flooring. Are we required to handle demolition of existing floor finishes in spaces to receive resinous flooring and walls?

If we are required to handle demolition per above, please provide plans or a schedule which identifies the existing flooring in each space to be demolished.

Answer – Yes, contractor will need to demo existing flooring in areas to receive resinous…