Atch_13_-_RFI_Responses_25_Jul_19.pdf

Attachment 13 to

FA466419BA004

Amendment 0002, 25 July 2019

Design/Build Global ASNT Building 470

RFI RESPONSES – 25 JULY 2019

1. In Section 1.2.1 of the Statement of Work the installation of a 2.5 Ton indoor HVAC Unit is identified. In which room is it installed and is new ductwork required or can the existing ductwork be utilized if available?

Answer: The new 2.5 Ton indoor HVAC will be installed in room

141. No duct work required, i.e., free return and discharge air. The unit is similar to the existing unit in the room 141 and must be Mitsubishi or equal.

2. Section 1.2.4 (2) identifies relocation of associated equipment from the equipment room to the basement. Is the equipment room number 141 and where in the basement is the equipment relocated?

Answer: The equipment are currently located in room 141. The relocation of the noted equipment is not in the scope of work of this contract. It will be relocated by others.

3. Section 1.2.8 identifies the installation of a window in the wall between rooms 131 and 138. There does not appear to be a wall between these two rooms. Please advise.

Answer: It’s a typo error, please correct it to read “between rooms 139 and 138”

4. Can you please provide work area photos where the demolition or renovation or new equipment will be installed? Photos should reflect the existing space limitations and immediately adjacent facilities/fixtures/structures.

Answer: Please see Partial System Footprint for photos.

5. Can you please provide contractor access route map to work area both inside and outside the building and any restrictions to work such as one door need to be closed to open the other door, etc. in the work area?

Answer: Please see SK-005 for access route. Materials delivery

(light trucks) shall be through the gate next to the building.

People will access the building through the back door on the flight line.

6. Please provide procedure for the escorted work. If a person uses the restroom and others are working, can you provide multiple escorts to not to stop the work?

Answer: Contractor will bring his portable toilet that will be located outside the building in the staging area where no escort is required.

7. Please provide 6” conduit details, especially where it begins, where it ends and where/how contractor needs to tap in to.

This will help us to estimate expensive components of the 6-inch size conduit use requirements.

Answer: Contractor will provide the 6” conduit from the platform to the middle of the wall between rooms 141 and 144, and terminated 9’-0” above the floor level. The existing conduit will not be available to be reused. See the Partial

System Footprint, version 6, for the platform construction.

8. Are there Asbestos Containing Materials (ACMs) or lead paint or mold in the areas disturbed by the contractor?

Answer: There is no asbestos identified in the facility.

9. Are the one way sea through glass windows supposed to have sliding windows?

Answer: Yes, the one way see through glass windows supposed to have sliding windows

10. Can 3 weeks work in the computer room be split in to several segments or are they need to be contiguous?

Answer: No, the 3 weeks work in the computer room cannot be split in to several segments because the current mission will be relocated to facilitate this renovation.

11. Provide details of the conduits required for camera system installation that will be completed by others at the antenna perimeter fence.

Answer: Conduit, 1” diameter, will run from the location of the camera pole at the fence (design-build) to room 009 in the basement. Conduit shall be PVC underground and steel above ground and inside the building.

12. Can the CAD drawings of the provided PDF drawings be included as part of the specifications to the contractor that wins the bid?

Answer: Yes, CAD drawings will be provided to the winner.

13. Provide electrical breaker box and other electrical details and drawings for using the existing emergency power panel.

Electrical drawings were mentioned in the site walk, however, no electrical drawings are provided in the solicitation documents.

Answer: Please see as-built electrical drawings.

14. Where is the contractor staging area for the project?

Answer: Two locations will be provided, one in the parking lot across the street (Graeber St.) and the second one next to the building on the back side. Contractor may provide a temp fence for the staging are in the parking lot to secure his materials. The fence should be free standing to minimize any damage to the parking lot paving. See sketch SK-005.

15. During three week window to complete indoor construction will the contractor be able to contain the area in corridor 150 and section of room # 141 ramp to entrance of room 149 for dust control and foot traffic purposes? See drawing SK-002 sheet refence #A091

Answer: Yes

16. Is the 3 week time frame total time for demo of walls, relocation of door, installation of new windows, prep of floor and installation of new flooring, placement of electrical panel and HVAC?

17. Is the Contractor be reusing existing door swing from relocated door or provide and install new door swing?

Answer: Reuse the existing door and frame

18. Will the Contractor be able to park work trucks on site or have to park in parking lot across from Bldg. 470?

Answer: Contractor will be able to park a work truck on site, all other trucks and cars will park across the street.

19. Will the Contractor be provided with a laydown area for conex, materials, portable bathroom ect. And will area need to be fenced in?

Answer: Yes the contractor will have two areas one in the parking lot across the street and a limited are next to the building (back side).

20. Will the Contractor be provided pictures of the basement and room

144?

Answer: No, due the sensitivity of the installations.

21. Plan Sheet A091, Note 1, what is the finish required of the remaining portion of wall that remains 4” below the ceiling of Room

139?

Answer: The new finish will match the existing wall (drywall construction).

22. Plan Sheet A091, Note 7 & 8, confirming the removal and relocation of the existing cell phone locks.

Answer: Yes, the phone locker will be relocated.

23. Please specify the type of flooring in the new vestibule.

Answer: The flooring in the vestibule will be the same as in rooms

139 and 141.

24. Are the placement of keynotes #2 and #3 correct? Keynote #2 points to what looks to be an existing wall and the keynotes specifies to REMOVE WALL. Keynote #3 points to what appears to be a wall to be demolished and the keynotes specifies EXISTING WALL TO

REMAIN. Please clarify.

Answer: The key notes have been revised, see the revised SK-002

25. Are we to provide a ceiling in room 141? If we are not providing a ceiling, are we required to thermally insulate the roof/ceiling assembly to accommodate the new HVAC unit?

Answer: No, we are not providing a ceiling in room 141. The roof is insulated.

26. Does the acoustical ceiling remain in Room 139?

Answer: Yes, the ceiling will stay.

27. Is there any scope of work associated with the ramp in room 141?

Answer: Remove the existing flooring, save the ramp, and re-floor it as room 141.

28. Are there any security or sound requirement for the new room

(139/141)

Answer: No, There are no security or sound requirement for the new room (139/141).

29. Is the platform required to be painted?

Answer: No, no paint it required for galvanized structure.

30. Are we required to provide a fluid applied decking material on the platform?

Answer: No requirements for fluid decking materials on the platform.

Conform to the platform construction requirements in the Partial

System Footprint, version 6.

31. Just want to clarify that only the window between rooms 139 and

141 will be double pane glass with unidirectional vision to block vision and a single pane clear glass on the other window.

Answer: the two windows are unidirectional vision.

32. Are there security measures like door hardware, IDS…etc. require for the vestibule and the new open room like removing/reinstalling the existing electric door strike?

Answer: Yes, contractor will relocate such items to work with the new vestibule but there are no additional requirements more that the existing provisions.

33. Please provide a complete list of what equipment/furniture is staying in the rooms and what is be removed by the Government. Any equipment/furniture to be removed by the Contractor?

Answer: Contractor will not relocate any communications equipment except the noted items in the SOW such as the security items on the vestibule, power outlet in the removed wall, and IT ports on the removed wall. Furniture will be moved by Government.

34. Please provide a photo is existing electrical panel EL1B located in Room 142.

Answer: Please see as-built drawing E401 for equipment in room.

35. SOW, 1.2.6 Security Fence, Item 5, please provide exactly where the 1 inch conduit needs to terminated in the building.

Answer: will be terminated in room 009 in the basement of the building.

36. SOW, 1.2.10 Design, Item 6, please provide more specific information on what is required of the Contractor to meet SHPO requirements. Do we have to retain the services of a Historical

Preservationist and has the Government already filed the documentation required to be in compliance with a critical part of the 1966 National Historic Preservation Act, Section 106?

Answer: We have obtained the approval for the new installations.

There is no specific requirements inside or outside the building.

37. What will be the requirement for re-establishment (if any) of the existing grass around the new antenna? Is this going to be a new landscaped area?

Answer: Gravel inside the security fence. Maintain the grass outside the fence.

38. Can the Superintendent, QC Manager and Site Safety Officer be one individual on this project?

39. The plans provided in the RFP show three existing VRF fan coil units serving rooms 139 and 141. Is this existing HVAC system to remain or is it to be demolished?

Answer: The existing HVAC system will remain.

40. Can the new HVAC system for rooms 139 and 141 be connected to the existing VRF condensing unit in lieu of a separate system?

Answer: We are open for this suggestion during the design phase but you need to assume that the new system will be independent if such suggestion is not viable.

41. What type of controls are required for the new split system air conditioning unit? Are DDC controls required?

Answer: If not integrated with the existing system then a simple electronic thermostat would be sufficient. We prefer to keep it independent.

42. The plans appear to show an existing outside air (OSA) ventilation unit above the ceiling. Will the existing OSA unit provide ventilation air to rooms 139 and 141 and is modification to the existing duct system required?

Answer: No modifications are required.

43. The plans identify an existing standby HVAC system for room 141.

Is a backup HVAC system required for the space?

Answer: No backup is required.

44. Only questions we have at the moment is related to HVAC DDC controls. Are we to integrate the new A/C unit to an existing system? If so please provide specifications

Answer: The new system will be independent.