RFI_Questions_and_Answers_for_Solicitation_W912JB-18-B-5002.docx

RFI Questions and Answers for Solicitation W912JB-18-B-5002 (Selfridge Lightning Protection Upgrade)

1. Q - Can a map with building numbers of SANG be provided to determine locations of structures in the scope of this project?

A - YES see attached Selfridge Base Map PDF file uploaded in FBO

2. Q - Are buildings 35, 105, 158, 873, 874, 887, 892, 894, 895 & 899 determined to be Explosive Facilities by owner or DOD?

A - The highlighted buildings are within the base Munitions Area (DoD Explosive Facilities)

3. Q - Are buildings 105 & 158 determined to be Hazardous locations by owner or DOD?

A - Building 105 & 158 are NOT determined to be Hazardous location owner or DOD

4. Q - Are surge protective devices required for peripheral systems (such as conductive communication systems, antenna systems, and at points where an electric or electronic system leaves the structure to supply another structure over 100') as well as at power service entrances?

A - No, please see the revised SOW (uploaded with Amendment 2 in FBO) that now details where surge protective devices are needed

5. Q - Please indicate status of roof warranty term for buildings 15, 24, 34, 35, 105, 130, 154, 158, 701, 708, 825, 859, 860, 873, 887, 892, 893, 894, 895, 1408, 1416, 1417, 1422, 1515 & 1572.

A - The contractor will need to contact building roofing manufacturer (on buildings listed in question 6) to ensure roof penetration meets manufacturers recommendation. (Term of the building warranty)

6. Q - Please indicate roofing manufacturer for roofs within warranty term.

A - Johns Manville 34,154,130, GAF Roofing 105

7. Q - Is surge protection required on electric and communication lines for each building? If so, please indicate the location of each required on each building

A - Please see the revised SOW (uploaded with Amendment 2 in FBO) for indicated location of surge protection required

8. Q - Please identify each electrical, communication, or other panel(s) that requires bonding to the LPS and its location for each building.

A - Please reference the drawing documents, revised SOW for requirements of bonding to the LPS and its location for each building facility.

9. Q - Is "Equal Potential Bonding" required inside each electric panel or can we pick it up on the outside?

A - “Equal Potential Bonding" is required inside each electric panel.

10. Q - Where "Ground Rings" are now required around the perimeter of some buildings, is it the intent to cut through the taxiways to install these loops and ground rods?

A - No! It is not the intent to cut through the taxiways to install these grounding loops and ground rods around Facilities

11. Q - Are detailed LPS shop drawings required for each building, or are product data cut sheets sufficient?

A – Per revised SOW detailed LPS shop drawings are required for each building, product data cut sheets are not sufficient.

12. Q - Is Inspection/Certification for compliance to NFPA 780 required by UL or Intertek?

A – Yes. Inspection/Certification for compliance to NFPA 780 is required. The Contractor is responsible for the selection of Inspection/Certification testing agency. (UL or Intertek)

13. Q - Who is the "governing body" that has jurisdiction over the interpretation of design issues for these facilities?

A – Selfridge ANGB engineering is “governing body” that has jurisdiction over the interpretation of design issues for these facilities as listed in the SOW

14. Q - As the drawings issued in this solicitation only indicate exterior improvements, is the work of this solicitation limited to the exterior protection only of these structures?

A – No

15. Q - Are RFI's due Wednesday, August 01, or Thursday (as stated) August 02, 2018?

A – RFIs were due on Friday, 27 July 2018 (per Amendment 2 of the solicitation)

16. Q - Are bids due Monday, August 13 or Wednesday (August 15) as stated?

A – Sealed bids are due 2:00 pm on Monday, 13 August 2018 (per Amendment 2 of solicitation)

17. Q - Are only hand-carried bids allowed? (There are several references to mailed in bids).

A – Bids can be hand-carried or mailed in, as long as contracting receives them NLT 2:00 pm on 13 August 2018.

18. Q - Is AFMAN 91201, Explosive Safety Standards, Department of Air Force, Washington, DC, from October 2001 the only applicable Air Force code for this solicitation?

A – No. The current edition of AFMAN 91201, Explosive Safety Standards, Department of Air Force, and Washington, DC (9 March 2016) is the applicable Air Force codes.

19. Please provide "as built" or submittal drawings for all structures having existing Lightning Protection Systems for determination of grounding electrodes for testing.

A - As-built drawings will be made available at time of award.

20. Q - Please provide copy or access of cited Standard AFI 32-1036.

A - The AFI 32-1036 Standard may be obtained from this web site: https://www.wbdg.org/ffc/af-afcec/instructions-afi/afi-32-1032

21. Q - Building 12 narrative requires existing grounding electrodes to be driven to leave 6" of exposed rod. Please confirm that existing electrodes driven to this reference are of sufficient length to conform to NFAP-780 Standard cited in this narrative.

A - The 6”of exposed rod length conforms to NFAP-780 as a “minimum” length required

End of Document