RFP_Q_and_A_Group_3_11_21_2012.pdf

Amendment No. 3 to Solicitation GS-11P-12-MK-C-0055 11/21/2012

Potomac Annex Complex

Building 1 Renovation – Group 3

Questions

1. Please advise if another site visit can be accommodated. We have received numerous requests from subcontractors.

ANSWER: No additional site visit will be provided.

2. Please reference sheets A103 and A104, which note the "Plaster Ceiling Above GWB

Ceiling" in Lobby 1-1118 and Vestibule 1-1101A. Please clarify the extent of these secondary plaster ceilings.

ANSWER: Assume plaster ceiling extends the entire area of the existing lobby and vestibule.

3. Please reference sheet S112, which shows new CMU walls from the basement floor to the first floor. Please clarify if the concrete walls shown in details F, G ,H and J on sheet

S-301 run the entire width of the building or only to the point where the new CMU is dowelled into the existing structure.

ANSWER: The concrete walls shown in details F, G, H, and J on sheet S-301 are required only to the point where the new CMU walls are dowelled into the exisiting structure.

4. Specification section 230800 references specification sections 230900 - Instrumentation and Control for HVAC and 230993 - Sequence and Operations for HVAC Control, which were not provided. Please advise.

ANSWER: Reference should be removed. Sequence of Operation is shown on M-

801.

5. Please confirm that a bid bond is not required.

ANSWER: A bid bond is not required for this project.

6. Please confirm that the telecom cabling is to be included in this contract. Specification section 011100 currently states that the telephone and IT systems are under a separate contract.

ANSWER: Provide cables per drawings. Div 1 spec ref will later be revised. Refer to Telecom drawings and specs.

Amendment No. 3 to Solicitation GS-11P-12-MK-C-0055 11/21/2012

7. Light fixture types F5D5, F9 and F11R are shown on the lighting plans but are not included in the light fixture schedule. Please provide manufacturer information for these fixtures.

ANSWER: on Dwg. E-122, F5D5 = F5DE which is an F5E fixture with a dimming ballast: AFF-14 2 T8(32) LPA t-2B DIMM EM. The F9 fixture on Dwg. E-121 is an

F4E. We could not find an F11R. Please provide location.

8. Please reference sheet E-704. Panel board 3S is specified as a 900A panel but the feeder from panel 3N is only 100A. Please advise.

ANSWER: Panel “3S” has a 100A MCB per the 1-Line Diagram; not a 900A.

9. The electrical drawings currently indicate that all conduits passing through the lobby require fire wrapping. Please provide a specification for the desired product.

ANSWER: One example for thie product is:

http://www.unifrax.com/web/UnifraxHome3.nsf/FyreWrapMSDSPage?OpenForm

Under Data Sheets, click on “Cable Insulation (PDF)”.

10. Please clarify the intent of note 5 on the lighting fixture schedule. Is this note requiring an inverter to be provided or is it referring to the inverters shown on the power plans.

ANSWER: The Lighting Floor Plans indicate that corridor/lobby lighting fixtures

‘AE’ and ‘DE’ are to be connected to lighting inverters.

11. Please reference sheet A101, issued in Amendment 1, which adds removal of a portion of the exterior wall plaster and GWB for water damage inspection. Please clarify if a new plaster finish is to be provided in this area after the inspection occurs. Also please clarify if the 800 SF of crystalline waterproofing, referenced on sheet A-111, is to be installed on the interior or exterior of the foundation wall.

ANSWER: Only those areas scheduled to received GWB / furring is to be provided at these locations. No plaster is required to be replaced at these locations.

Crystalline is to be applied from interior on the face of the foundation wall

12. Please reference note 3 on sheet E-501, which references daylight harvesting. The details and plans only appear to indicate occupancy sensors. Please advise if daylight harvesting sensors and controllers are required.

ANSWER: Note-3 will be deleted……no daylight harvesting.

http://www.unifrax.com/web/UnifraxHome3.nsf/FyreWrapMSDSPage?OpenForm

Amendment No. 3 to Solicitation GS-11P-12-MK-C-0055 11/21/2012

13. Please reference Appendix A of specification section 002089. Please clarify if the submittals listed in Section A are to be provided with the bid as indicated.

ANSWER: Yes, under the “Initial Contractor Submittals” those submittals indicated are to be submitted with the bid, as indicated.

14. Details G and J on drawing S301 indicate new foundation walls beneath existing concrete slab. Please provide elevation for bottom of new wall.

ANSWER: Repeat question. Please refer to earlier response.

15. Will the Owner be performing exploratory work for underpinning of existing walls where shown? Please advise.

ANSWER: Repeat question. Please refer to earlier response.

16. Specifications Section 271500, part 2.13B specifies iTRACS Corporations, Inc., and

TelSoft Solutions for the Cable Management System. Would it be acceptable to use the other cable management software, such as Brady NetDoc? Please advise.

ANSWER: Part 2.13A states that the work include, but are not limited to, the following, which means if another system meets all of the requirements than it can be used. The two listed are the basis of how the design was done and they are acceptable for use on this project.

17. Please clarify where the following forms should be submitted in our proposals. It is not clear whether they should be included in the Pricing Proposal or the Technical Proposal.

Also if they are to be included in the Technical proposal will they count against the maximum page limit?

ANSWER: The following forms should both be included in the Price Proposal:

GSA Form 527 – Contractor’s Qualifications and Financial Information

Form (C301) – Offeror’s Representations and certifications

Attachment 7 Forms

18. In addenda 1, the architect added demolition of the exterior wall finishes from column line A5 around to E8. On the revised drawing A111, they do not show any new finishes at these areas other than at room 1-B28. Are there to be new finishes?

ANSWER: New GWB furring is not required on the utility rooms, so yes, only those walls indicating new GWB finish will be replaced with framing and GWB.

Amendment No. 3 to Solicitation GS-11P-12-MK-C-0055 11/21/2012

19. On drawing A704, under room 1B02 in the remarks column it says to see package B.

What is that?

ANSWER: Package B is not in contract.

20. Please reference page 28 of the Solicitation, which provides requirements for Evaluation

Factor 3. Currently, it is stated that the project organizational chart is to include

"personnel involved with field activities for this project, including all of the Contractor's subcontractors and their subcontractors at all tiers." Please clarify if we are required to name specific subcontractors in our organizational chart. If so, which subcontractors need to be named and how many companies can be named for each trade.

ANSWER: Yes. The offeror should include the specific subcontractors to be used on the project at all tiers in the organizational chart. No limit has been placed on how many companies can be used.

21. Please reference page 5 of the Solicitation, paragraph II.B. that states, "All materials submitted shall be set in typeface Times New Roman 12 point." Please advise if it is acceptable to use single spacing and 10 point font for tables and charts and single spacing for resumes.

ANSWER: No. All text should be 1 1/2 spacing and 12 point Times New Roman.

22. On mechanical drawing M-701, Duct Construction and Insulation Schedule, and specification section 23 31 13, indicated duct lining for Supply, Return/Exhaust, Transfer

Air and Outdoor Air with Return/Exhaust ducts constructed of double wall with inner perforated wall for the first 20 linear feet. Do the remaining duct systems all get single wall construction with 1” liner?

ANSWER: Ductwork should be externally insulated.

23. The VRV Condensing Units (CU-1 & CU-2) are grossly undersized for the total connected capacity of the VRF Indoor Units. Please revise the schedule and/or the specification accordingly.

ANSWER: Outdoor condensing units are sized based on the actual building cooling load not the connected capacity.

24. Is a branch selector required for units AC-1-26, AC-1-27, AC-1-24 on drawing M-204?

ANSWER: Yes

25. Is a branch selector required for units AC-2-32, AC-2-33 on drawing M-206?

Amendment No. 3 to Solicitation GS-11P-12-MK-C-0055 11/21/2012

26. Is a branch selector required for units AC-3-2 on drawing M-207?

27. Is a branch selector required for units AC-3-22, AC-3-23 on drawing M-208?

28. Stone flooring thresholds ST-1 are referenced at the elevator on drawing A-705, but spec section 096340 is not in the specification manual. Please advise if this spec section will be provided or what the thresholds are.

ANSWER: Stone thresholds and materials are indicated on drawings and specified under tile section #093000

29. Please advise where the steam hut is located for the steam distribution pathway.

ANSWER: Steam structure is located directly south of the south access road for the site (and aligned directly south of building 1).

30. Addendum #1 Narrative has a change on M-202, but a revised drawing is not provided.

Please advise what the change entails.

ANSWER: A label is provided for the refrigerant piping. Keynote #5.

31. Please advise what the changes are on A-103 and A-113 of Addendum #1 as they are not stated on the drawings or narrative.

ANSWER: A-113 contains clouded changes to the lobby wall, elevator centered door pening and the ramp rails. A-103 contains changes to the extent of demolition for the new lobby wall configuration.

32. Please specify which storage rooms are to receive film.

ANSWER: Storage rooms located on each floor along north west corner of the building.

33. Please advise who is responsible for paying for security personnel as specified in security specs Section II 11.C.

ANSWER: The General Contractor will pay for security personnel outside of the approved working hours when this work is approved by the SSM.