Grp2_QA.pdf

PROJECT TITLE: F‐35 FUEL CELL MAINTENANCE FACILITY RENOVATION (Bldg 1344)

LOCATION: EIELSON AFB, ALASKA

PROJECT: FTQW 18‐0205

SOLICITATION QUESTIONS AND ANSWERS:

1. Reference Plan A001 Architectural Information, Wall Assembly Modifier ‐ Provide the information for wall assembly modifier, types B and K not found in plans or specifications.

ANSWER: On A001, add wall descriptor types to include, “ – B Insulation Added” and “ – K Tile

Surface”.

2. No photos were allowed at the pre‐bid walkthrough. Will the government provide detailed photos of the existing construction? Specifically, pictures of the structure of the building above the ceiling where the HRV unit and platform is mounted, the existing AFFF system (piping, tanks and generator) and the HVAC and piping systems inside the main hanger bay.

ANSWER: As‐built drawings are being provided In lieu of photos.

3. The stated performance period is not reasonable due to the procurement time for the HEF Foam Generators. The generator takes 8 weeks to produce plus 2.5‐3 weeks to ship to Alaska, after the system has been designed (2‐4) weeks, submitted (4‐6 weeks) and approved (2 weeks min.) After contract award and Notice to proceed. Total 19‐23 weeks. (133‐161 days) plus installation testing and closeout time (6 weeks). We request a minimum performance period of 240 days to accomplish this work.

ANSWER: The Government has determined that the completion date can be pushed to 06 December 2019. The completion of this facility on time is critical because this project is in the critical path of the overall F-35 beddown program. There is no room for further deadline extensions for this project.The period of performance will be extended to 240 days.

4. Reference Plan Sheet F100. The Viking 15000WP that is shown as the basis of design is discontinued by Viking and is no longer available. What is an acceptable replacement for the Viking 15000WP? Please provide new data for the HEF Foam Generator for bidding purposes as shown on sheet F100.

ANSWER: The Viking 15000WP foam generator is shown as a basis of design only, not as a sole source item. Alternate foam generators are permitted and were anticipated by the Government.

The design was based on the generator data listed in the F100 schedule. Alternate generators shall meet or exceed these requirements or otherwise produce the required foam spread and height as required by UFC 4‐211‐01 within the required timeframe. Foam generator performance will be confirmed during the submittal of product data and shop drawings to the Government.

5. Will ANSUL HEF Foam Equipment be an acceptable alternate to the Viking system?

ANSWER: Ansul HEF Foam Equipment is an acceptable alternate manufacturer to Viking.

6. Specification section 10 51 00 Benches and Lockers was not included in the documents provided. Will this section be provided?

ANSWER: Please see the attached specification Section 10 51 13 Metal Lockers.

7. What is the standoff distance and explosive weight to be used for hollow metal doors and windows?

ANSWER: The windows for Mens Locker 114A and Womens Restroom 113 shall follow the requirements of UFC 04‐010‐01 B‐3.1.7 (this portion of the building is not inhabited). Windows for

Break Room 106, Office 104, and Office 104A shall utilize an Explosive Weight II and 33’ setback.

The project does not include any new or replacement doors into inhabited spaces and the UFC standards do not apply (i.e. Door 111.1).

8. Drawing A100 calls for flooring demo on the east part of but no flooring types were provided.

ANSWER: Sheet A640, Interior Plan – Finishes & Furniture contains the finish and signage legend.

The legend calls for installing LVT‐1 (luxury vinyl tile – biobased tile) in the office and break rooms and CT‐1 (ceramic tile) in the locker and shower rooms. Reference Specification Section 09 65 00 for Resilient Flooring requirements and Section 09 30 10 for Ceramic, Quarry and Glass Tiling.

9. Please confirm that all existing windows to receive a new window sill per 6/A500.

ANSWER: Yes, all existing windows are to receive new window sills. See details 3, 6 and 9 of

Revised Sheet A500. Each of these details has a callout to reference Detail 7 of Revised Sheet A500 which is the detail for the window sill.

10. Reference drawing no. M002, Plumbing Schedule: Please provide basis of design for each fixture.

ANSWER: Please see the attached, revised Plumbing Fixture Schedule for basis of design for each fixture.

11. Reference drawings no. A600 and M401: The drawings show WC‐1 water closets located “approximately” back‐to‐back, offset by about 6” center‐to‐center.

These are wall‐hung, wall‐outlet water closets supported by floor‐mounted carriers (TS 22 00 00‐2.4.1 and ‐3.3.4).

Back‐to‐back water closets must be aligned center‐to‐center in order to utilize a floor‐ mounted carrier.

Relocating one of the water closets could have a significant impact to the restroom.

Perhaps the water closets could be revised to floor‐mounted, floor‐outlet.

ANSWER: Water closets are to remain wall hung with floor mounted carriers, see the attached sketch A600 Toilet Fixture Shift for the revised fixture locations.

12. For work within Hydrazine Servicing 109A and Hydrazine Storage 108, given the toxicity of hydrazine please confirm that all of the hydrazine & components be removed from the rooms prior to commencing work.

ANSWER: Building 1344 is the only building on the Installation that is equipped with hydrazine storage capabilities. Therefore, the hydrazine will remain in the facility during the renovation project. However, the hydrazine is stored inside of sealed, portable containers that can be temporarily moved from Room 108 to Room 109A while work is underway in Room 108.

13. Please provide a specification section for WEATHER BARRIERS. This material is indicated on plan drawing A500.

ANSWER: Please see the attached specification Section 07 27 19 Self‐Adhering Air Barriers.

14. Detail 3/A710 indicates a material DP‐1. This is not shown in the MATERIAL

SCHEDULE on sheet A940.

ANSWER: Change DP‐1 to read “PP‐1”.

15. Is the “New Concrete Landing” noted in KEYNOTES ‘H’ on sheet A200 to be attached to structure?

ANSWER: Yes. Please see how the line work depicting the outline of the landing intersects with the line work showing the exterior wall surface.

16. Please provide a reinforcing detail for the “New Concrete Landing” noted in

KEYNOTES ‘H’ on sheet A200.

ANSWER: Please refer to Section 03 30 00 subsection 2.4 Reinforcement.

17. Please provide as specification section for rough carpentry materials i.e 2”x4” treated blocking, ¾” plywood.

ANSWER: Please see the attached specification Section 06 10 00 Rough Carpentry.

18. Details 2, 3, 8 & 9 on sheet A500 all indicate a 2” member that is to be fastened to structure through 7” of rigid insulation. Please provide basis of design for desired fastener of this member.

ANSWER: Please see the Revised A500 drawing attached.

19. Specification section 07 21 16, paragraph 2.1.1 states “The R‐Value must be as indicated on drawings.” An R‐Value cannot be found on the plan set. Please provide.

ANSWER: Delete 2.1.1 from 07 21 16. Fill wall cavity with batt insulation as indicated on A800.

20. Wall Type WX‐8A indicates it includes “3.5” Rigid Insulation”. Please provide a basis of design for this material.

ANSWER: Basis of design; Western Insulfoam – Type IX, 25 psi, R‐4.76@40 degrees F.

21. Detail 1/A640 indicates new flooring installation throughout most of the east side

(between gridlines 3 & 4). A100 does not indicate any demolition of flooring in this area. Is new flooring to be installed over existing?

ANSWER: Please refer to Demolition Remarks A and B on Sheet A100 which state:

A. For work within area indicated by hatch pattern, remove materials not reused in new construction. This includes interior walls, exterior walls, casework, fixtures, doors, windows, soffits, ceilings, floor finishes, and wall mounted items, floor mounted items, and ceiling mounted items; unless otherwise indicated.

B. For work within area indicated by hatch pattern, items to remain include concrete floor slabs, roof decking, roofing, and ceiling tiles attached to underside of structure; unless otherwise indicated.

22. Do as‐builts for this facility indicate any utility raceways installed within the concrete slab?

ANSWER: See Sheet M‐3 “Plumbing Plan and Details” and Sheet M‐7 “Mechanical Room Plans and Details” by Crews, Macannes, Hoffman, Vitro. for “Eielson AFB, Alaska Repair and

Reclamation Hangar” project (.tif file names ftqw_vault8_1340_2175_192 and ftqw_vault8_1340_2175_193).

23. Do as‐builts for this facility provide the estimated slab thickness at locations for removal as indicated on 1/M103?

ANSWER: See “Grade Slab Plan” on Sheet S‐3 “Grade Slab Plan Details” by Andersen, Bjornstad, Kane, Jacobs, Inc. for “Eielson AFB, Alaska Repair and Reclamation Hangar” project (.tif file name ftqw_vault8_1340_2175_197).

24. No floor demolition is noted for the east office area (that portion of the building between gridlines 3 &4). Is new flooring to be installed over existing?

ANSWER: See answer for Question 21 above.

25. Specification Section 08 71 00 does not indicate hardware sets for door 109B1 and

110.2. Please provide.

ANSWER: Existing fire rated Doors 109B1 and 110.2 frame, door and hardware to remain.

26. The DOOR SCHEDULE on sheet A920 does not specify material types for doors 109B1

& 110.2. Please provide.

ANSWER: Existing fire rated Doors 109B1 and 110.2 frame, door and hardware to remain.

27. Drawing A200 KEYNOTE ‘I’ indicates to provide an access panel for an electrical chase in VEST 116. Specification section 08 31 00, paragraph 2.2.1 states that access panels are to be 24”x24”. It appears that the one in the VEST 116 is larger than this. Please confirm what size access panel is intended for this location.

ANSWER: Provide custom double leaf removable access panel. Opening size shall be 4’0”X4’‐0”, similar to existing. Provide double leaf removable doors each leaf shall measure 2’‐0”X4’‐0”. No cross bracing is allowed. Finish shall be 5/8” gypsum board painted to match adjacent wall.

28. Please provide a specification section for the bar grating noted in detail 1/S200.

ANSWER: Specification 05 50 13 has been added for additional information on bar grating requirements.

29. Detail 9/A810 provides detail for the installation of deflection track for new interior partitions. At locations where metal studs extend to structure as noted on A500 track will be fastened to corrugated pan decking. Please provide a detail indicating how gypsum wallboard is to be installed and sealed at these locations.

ANSWER: Please see the attached detail 9a, 9b and 9c/A810.

30. Details 1, 2, &3 on sheet A500 detail installation of components at locations for new windows. The details have discrepancy concerning the requirement for the new installed material to be “Treated” or “Exterior Grade”. Please confirm which is correct.

ANSWER: Provide treated plywood at all areas in contact with masonry or concrete.

31. Does the Nitrogen Generation Skid as shown on 2/F123 require a 4” concrete housekeeping pad?

ANSWER: A housekeeping pad is not required.

32. Please provide exterior wall penetration details for mechanical louvers & hoods.

ANSWER: Mechanical louver and hood penetrations are similar to details on revised sheet A500.

Solid surface trim, sills, or window blinds not required. Please see the attached Bidder Question

#32 Response sketch for louver opening details.

33. Please provide a gauge thickness for “Prefinished Metal Flashing” shown for installation with the new and existing windows on sheet A500.

ANSWER: Please reference specification Sections 08 51 00 and 08 51 13.

34. The MATERIAL SCHEDULE on A940 provides a basis of design spec. 10 51 00, BENCH‐

1. Can a preferred size be provided?

ANSWER: Each bench in Men’s 114A and Women’s 113A measures at 1’6” X 4’‐0”.

35. Specification section 10 28 13, paragraph 2.2.3 requests a “semi‐recessed” receptacle for waste. The MATERIAL SCHEDULE on sheet A940 specifies “free standing” which seems to be shown in elevation drawings on sheets A711 & A712. Please verify which is desired.

ANSWER: Provide freestanding waste receptacle.

36. ROOM SCHEDULE on plan sheet A920 indicates Room 105A. This room is not identified on sheet A200. Please identify.

ANSWER: Please see the callout for 105A Corridor adjacent to Door 101.1 and Room 104 Office.

37. Can the access location to the new Mechanical Platform per 1/S200 be identified?

ANSWER: Access to the mechanical platform is from two locations. One side is accessed from a ceiling access hatch within room 114A as indicated on A620 and M220. The other side is accessed by removal of ceiling tiles in Room 112.

38. Are there as built drawings of the fire protection sprinkler system available?

ANSWER: See Sheets M‐9 (ftqw_vault8_1340_2175_199.tif), M‐6

(ftqw_vault8_1340_2175_196.tif), M‐5 (ftqw_vault8_1340_2175_195.tif) by Crews, Macannes, Hoffman, Vitro. for “Eielson AFB, Alaska Repair and Reclamation Hangar” project.

39. In section 21 30 00 3.7 Flushing‐ it states the fire pump suction and discharge piping shall be flushed at 150% of pump capacity for 10 minutes. This would produce over 22,000 gallons of water. Is it ok to let this water discharge to the ground?

ANSWER: Yes, the water may be discharged to the ground after approval of a Hydrostatic General

Permit (AKG003000) by Alaska Department of Environmental Conservation Division of Water. The

Contractor shall submit the permit application package to the Contracting Officer to allow the

Installation Environmental Office to review and comment prior to submitting the permit application package to ADEC Division of Water. The Contractor shall address all review comments and resubmit to the Contracting Officer until the application package is approved by the

Installation Environmental Office. Upon approval by the Installation Environmental Office the

Contractor shall submit the application package to ADEC Division of Water. Once the permit has been issued by ADEC Division of Water the Contractor shall submit a copy to the Contracting

Officer.

40. This section 21 30 00 3.7 states suction and discharge piping to be flushed

a. What is considered to be the extent of the discharge piping?

ANSWER: See NFPA 20 Section 4.16.1 which states “the discharge components shall consist of pipe, valves, and fittings extending from the pump discharge flange to the system side of the discharge valve”.

b. Will the existing 10" lead‐in be flushed as part of the EIE 406 project, and will the new above ground suction piping be allowed to be flushed from the existing 10" lead in?

ANSWER: The existing 10‐inch lead‐in will be flushed as part of EIE406 to the point of connection at the EIE406 installed BFP. The new above ground suction piping will be allowed to be flushed from the existing 10” lead in so long as it meets the flow requirements of NFPA 20 Section 14.1.

41. Will sidewall heads be required under the hangar door when it is raised?

ANSWER: Yes, coordinate with door sweep to avoid striking conflict. Existing sidewall heads protecting under the existing door are from the middle of the hangar facing back towards the exterior wall (door opening).

42. Section 21 13 13.00.10‐ 1.2‐ References Rack Sprinklers. What is the intent for mentioning Rack Sprinklers?

ANSWER: Remove the following sentence from Section 1.2 – “Rack sprinklers shall be in accordance with NFPA 13.”

43. Will new conduits, ducts, pipes, hangers, etc. be required to be painted where these new items run exposed through the hangar area?

ANSWER: Yes; paint ducts, pipes, conduits, hangers, etc. per spec 09 90 00 section 1.8. Coordinate identification markings with mechanical, electrical, and sprinkler specs.

44. A920, room schedule remarks, A, states to paint east hangar wall full height and width. Is this repainting to include all pipes, conduits, ducts, etc. mounted to this wall?

ANSWER: Yes; paint ducts, pipes, conduits, hangers, etc. per spec 09 90 00 section 1.8. Revise A920 room schedule remark A to read: PAINT EAST HANGAR WALL FULL WIDTH AND HEIGHT FROM FLOOR UP TO, AND INCLUDING, UNDERSIDE OF SOFFIT. PAINT NEW WORK AND TOUCH UP

EXISTING CONSTRUCTION AFFECTED BY NEW WORK. COORDINATE IDENTIFICATION MARKINGS

WITH MECHANICAL, ELECTRICAL, AND SPRINKLER SPECS.

45. A920, room schedule notes, 2 states paint exposed sprinkler piping and standpipe. Does this include painting of sprinkler pipes in mech/utility rooms?

ANSWER: No. Piping in mech/utility rooms does not require painting unless noted otherwise on mechanical, electrical, or sprinkler documents. Coordinate identification markings with mechanical, electrical, and sprinkler specs.

46. Are there as built drawings of the fire protection sprinkler system available?

ANSWER: See answer to Question 38 above.

47. In section 21 30 00 3.7 Flushing‐ it states the fire pump suction and discharge piping shall be flushed at 150% of pump capacity for 10 minutes. This would produce over 22,000 gallons of water. Is it ok to let this water discharge to the ground?

ANSWER: See answer to Question 39 above.

48. This section 21 30 00 3.7 states suction and discharge piping to be flushed

a. A‐What is considered to be the extent of the discharge piping?

ANSWER: See answer to Question 40 a. above.

b. B‐Will the existing 10" lead‐in be flushed as part of the EIE 406 project, and will the new above ground suction piping be allowed to be flushed from the existing 10" lead in?

ANSWER: See answer to Question 40 b. above.

49. Will sidewall heads be required under the hangar door when it is raised?

ANSWER: See answer to Question 41 above.

50. Section 21 13 13.00.10‐ 1.2‐ References Rack Sprinklers. What is the intent for mentioning Rack Sprinklers?

ANSWER: See answer to Question 42. above.

51. The following specification sections are referenced on Drawing A940, but not provided in the RFP documents: 10 26 01, 12 36 00. Will these referenced specifications be provided so an “or equal” vendor can be considered?

ANSWER: Items indicated on sheet A940 are listed as Basis of Design, if no specification reference is provided, Basis of Design shall be used to evaluate the or equal vendor. Please replace those two specification references on A940 with N/A.

52. 08 36 18 1.1 Description of Work para. V. states, “Remove hangar door and inspect for and repair faults prior to reskinning and rehanging door. Repair or replace damaged areas of door as necessary to result in a proper functioning door. “ Contractors will need to be able to quantify the necessary repairs prior to being able to provide a cost for those repairs. Can this section be reworded to allow the contractors to inspect the doors prior to trying to provide costs for unknown repairs?

ANSWER:

Revise specification 08 36 18 as follows:

Replace Paragraph 1.1 with the following: “Base bid scope of new work on the tip‐up hangar door under this contract specified under this section includes:”

Replace list item 1.1.v with the following:

“Remove hangar door prior to reskinning the door. Ensure door components are all adjusted tightly so as to prevent FOD issues in the future.”

53. In speaking with one of the approved door manufacturers they suggested trying to get the door replaced in lieu of repair. Can this be a consideration?

ANSWER: No. Replacing the door triggers a requirement for a hangar door that meets the current UFC requirements which is a hangar door without a built in man door. The man door in the existing hangar door provides code compliant emergency egress under the old UFC that this existing hangar door was constructed. If the existing hangar door is replaced then a separate emergency fire egress will be required to be constructed which is not in the project budget.

54. Solicitation requires the project be completed 120 calendar days after receiving notice to proceed. Typically HVAC equipment, electrical equipment, doors, frames & hardware have an 8‐12 week production schedule after submittal approval. The specifications also require the HVAC system be fully commissioned prior to occupancy. This appears to be a very aggressive performance period. Can the performance period be extended to allow time for long lead items to be submitted on, procured, shipped, installed and build?

ANSWER: The period of performance will be extended to 240 days.

55. What is the “curbing” material in detail 3 on E101?

ANSWER: Curbing material intended to be either sections of concrete pavers, formed concrete, or sets of composite panels which when placed upright provide a dedicated perimeter for attachment and/or supporting of the spill containment area geomembrane material. Material used shall be durable enough to withstand impacts from landscaping operations i.e. lawn mower wheels, string trimmers, etc., without damage to the curbing material.

56. What is the meaning of (ALT) on A920 for the Hangar Dock floor finish?

ANSWER: During design development, the Government was considering the floor finish as a project alternate. It is now part of the Base Bid. Please strike through the “(ALT)” for the floor finish.

Other Directions from Designer of Record:

Change Note L on sheet A200 to read, “Provide epoxy paint. Layout floor striping and clear areas according to UFC 4‐211‐01 13 April 2017, Change 1 November 2017 paragraph 5‐3.2. Submit an epoxy coating/striping shop drawing depicting proposed layout to the Contracting Officer 45 days in advance of planned work for approval”. Also refer to revised spec 09 96 00.

57. For the subcontractors mainly, we would be bidding as a general, would like to know which sub's are interested in the project. Can the Air Force provide the contractor sign in sheet from the site visit?

ANSWER: Yes. See the attached listing of companies that attended the site visit.

58.

59. JA‐3_Final_Construction_Docs_Vol_1_Bk_2 includes a hazardous material report. Lead wipe samples have been taken and confirm the presence of lead dust.

a. Is the project’s intent to clean the dust throughout the Hangar?

ANSWER: Yes. See specification Section 01 78 00 for information regarding cleaning.

b. Is the project’s intent to only clean, as needed, to support new construction task (ex.

Wipe down location where pipe/seismic hangers connect to trusses).

ANSWER: No. See answer to a. above.

c. Do dust samples need to be taken in the space occupied by the HVAC?

ANSWER: As stated on page 4 of the Limited Hazardous Material Investigation the investigation was a limited assessment and additional sampling to comply with OSHA worker exposure regulatory guidelines may be needed.

d. Shall this area be wiped down to remove potential hazardous dust?

ANSWER: This area shall be cleaned in accordance with specification Section 01 78 00.

60. Any and all photos of the interior existing conditions you could share would be great.

Answer: As built drawings and photos will be provided.

61. How thick is the existing concrete in the areas we need to cut and remove?

ANSWER: See “Grade Slab Plan” on Sheet S‐3 “Grade Slab Plan Details” by Andersen, Bjornstad, Kane, Jacobs, Inc. for “Eielson AFB, Alaska Repair and Reclamation Hangar” project (.tif file name ftqw_vault8_1340_2175_197).

62. How deep under the slab are the plumbing connection points? Wondering how deep we have to excavate.

ANSWER: The depth of the plumbing connections points are unknown.

63. Is there supposed to be a window schedule in the plans?

ANSWER: See Sheet A920 for window types.

64. Is it the intent of the Govt to install backfill, trenching, transformer pad, and associated excavation in the middle of winter?

ANSWER: The period of performance will be extended to 240 days. The choice of when to install the transformer and associated improvements is at the discretion of the contractor.

65. Is any portion of the Bldg. going to be occupied during construction?

ANSWER: The building will not be occupied by people but hydrazine will remain in the facility during the renovation project. However, the hydrazine is stored inside of sealed, portable containers that can be temporarily moved from Room 108 to Room 109A while work is underway in Room 108.

66. Reference Sheet A929 Room Schedule for Room 101 (Hangar Dock) floor finish:

a. Please clarify the (ALT) that is associated with the floor finish MPE‐1 (ALT). There are no alternates in the bid schedule so we do not understand the use of this abbreviation or acronym.

ANSWER: The ‘ALT’ is an error on the drawing. The floor finish is not an alternate.

b. Is the entire hanger dock to receive new epoxy coatings or just the places where the floors are modified/Repaired?

ANSWER: The entire floor is to receive epoxy coatings. Reference Note L on Sheet

A200 for further information.

67. Can we also get a picture of the piping connections to the Emergency Shower/Eye Wash stations?

ANSWER: Photos of the piping connections to the emergency eye wash/shower are being provided.

68. Wondering if the govt has any photos they could share? Specifically mechanical room, including the mezzanine?

ANSWER: As builts of the mechanical room are being provided.