Attachment 9 - MAHG11-1042 Repair Bryan Hall - QA 20230306.pdf

11-1-042 / 21-006 AD1 - 1 ADDENDUM 1

Questions and Responses; Addendum 1 MAHG 111042 Repair Bryan Hall

GENERAL:

1. This Addenda provides clarifications based on questions received during the bidding period.

QUESTIONS:

1. See pages 10 through 39 for questions and responses.

CHANGES TO PROJECT MANUAL:

1. 01 45 00.00 20 Quality Control: Add section in its entirety.

2. 01 35 26 Governmental Safety Requirements: Add section in its entirety.

3. 02 41 00 – Demolition:

a. Subpart 1.3.3 – Delete “a 3 foot high fence” and replace with “a 4 foot high fence”.

b. Add “Appendix C.1 – B6901 – Original Construction Documents” to the end of the section. Original scanned documents can be downloaded from:

https://acrobat.adobe.com/link/review?uri=urn:aaid:scds:US:1187a98d-10ec-4e87-a936-c273ab53539b

4. 02 82 16.00 20 – Engineering Control of Asbestos Containing Materials:

a. Subpart 1.2.21: Delete “Florida” and replace with “Mississippi”.

b. Add “Appendix A.1 – KAFB Bryan Hall Asbestos Survey Report” to the end of the section.

5. 02 83 00 - Lead Remediation: Add “Appendix B.1 – KAFB Bryan Hall LBP Survey Report” to the end of the section.

6. 03 92 50 – Repair Mortars: Add section in its entirety.

7. 05 52 00 – Metal Railings: Subpart 2.2.2 – Delete “color as indicated on drawings.” and replace with “color to be chosen by Contracting Officer from standard color options.”

8. 06 61 16 – Solid Surfacing Fabrications:

a. Paragraph 1.3, Subpart SD-03 Product Data: Add “Quartz Agglomerate Material” at the end of the part.

b. Paragraph 2.1:

i. Add “and quartz agglomerate material” after “solid polymer material” in the first sentence.

ii. Add the following at the end of the last sentence, “for horizontal and 14” for vertical solid polymer material and 3 cm for quartz material.”

c. Add Paragraph 2.1.4 in its entirety:

“ 2.1.4 Quartz Agglomerate (or "Engineered Quartz") Solid Surfacing Material

Solid sheets consisting of quartz aggregates in an acrylic or polyester, or a combination of the two, resin binder (or matrix) that is solid and nonporous with https://acrobat.adobe.com/link/review?uri=urn:aaid:scds:US:1187a98d-10ec-4e87-a936-c273ab53539b https://acrobat.adobe.com/link/review?uri=urn:aaid:scds:US:1187a98d-10ec-4e87-a936-c273ab53539b

11-1-042 / 21-006 AD1 - 2 ADDENDUM 1

integral color.”

9. 07 52 00 – Modified Bituminous Membrane Roofing: Subpart 2.1.e: Delete “SRI: 92” and replace with “SRI: 82”

10. 08 11 16 – Aluminum Doors and Frames:

a. Paragraph 1.2.1.1: Delete Paragraph in its entirety.

b. Paragraph 1.3: Delete SD-05 in its entirety.

c. Paragraph 1.5.3: Delete Paragraphs 2 and 3 of their subpart in their entirety.

d. Paragraph 1.6 & 1.6.1: Delete section in its entirety.

11. 08 44 00 – Curtain Wall and Glazed Assemblies: Add section in its entirety.

12. 08 71 10 – Door Hardware Sets: Delete section in its entirety and replace with “08 71 10r”.

13. 09 30 00 – Ceramic Tile: Subpart 1.3. SD-11: Delete both instances of “Include in LEED Documentation Notebook.”.

14. 09 51 00 – Acoustical Ceilings: Subpart 1.2.1 – Delete “attenuation class (CAC) of 40 for ACT-1” and replace with “attenuation class (CAC) of 26 for ACT-1.”

15. 09 68 00 – Carpet: Subpart 2.1.1.1.B: Delete “J+J Flooring’s Indew” and replace with “J+J Flooring’s Craftwork”

16. 10 14 02 – Interior Signage: Subpart 2.2.1 – Delete “and shall conform to the following:

a. Frames shall be aluminum 1/4 inch wide.

b. End caps shall be molded acrylic with square style corners.”

17. 12 48 13 - Entrance Floor Mats and Frames: Add section in its entirety.

18. 14 24 00 - Hydraulic Elevators:

a. Paragraphs 1.5 Scheduling

i. Add “for the first two years,” after “…six months,”

ii. Delete the third sentence in its entirety.

b. Delete paragraphs 2.3.4 through 2.3.5.6 in their entirety and replace with:

“2.3.4 Hydraulic Elevator Type

Provide a holeless direct plunger type hydraulic elevator. Rope hydraulic elevator design is not acceptable and may not be used.

2.3.4.1 Jack

A jack unit shall be of sufficient size to lift the gross load the height specified.

Factory test jack to ensure adequate strength and freedom from leakage. Brittle material, such as gray cast iron, is prohibited in the jack construction. Provide the following jack type: Twin post holeless telescopic 2-stage. Two jacks piped together, mounted one on each side of the car with each having two telescopic sections designed to extend in a synchronized manner when oil is pumped into

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the Assembly. Each jack section will be guided from within the casing or the plunger assembly used to house the section. Each plunger shall have a high pressure sealing system which will not allow for seal movement or displacement during the course of operation. Each Jack Assembly shall have a check valve built into the assembly to allow for automatically re-syncing the two plunger sections by moving the jack to its fully contracted position. The jack shall be designed to be mounted on the pit floor or in a recess in the pit floor. Each jack section shall have a bleeder valve to discharge any air trapped in the section.

2.3.4.2 Automatic Self-Leveling

Provide elevator car with a self-leveling feature to automatically bring the car to the floor landings and correct for over travel or under travel. Self-leveling shall, within its zone, be automatic and independent of the operating device. The car shall be maintained approximately level with the landing irrespective of its load.

2.3.4.3 Wiring, Piping, and Oil

Provide all necessary hoistway wiring in accordance with the National Electrical Code. All necessary code compliant pipe and fittings shall be provided to connect the power unit to the jack unit. Provide proper grade inherently biodegradable oil as specified by the manufacturer of the power unit.

2.3.4.4 Sensor:

Pit moisture/water sensor located approximately 1 foot above the pit floor to be provided. Once activated, the elevator will perform “flooded pit operation”, which will run the car up to the designated floor, cycle the doors and shut down and trip the circuit breaker shunt to remove 3 phase power from all equipment, including pit equipment.”

c. Paragraph 3.3: Change “5working days” to “1 working day, as coordinated with the Contracting Officer,”

19. 21 13 13 – Wet Pipe Sprinkler Systems, Fire Protection: Subpart 3.4.11, delete first paragraph in its entirety.

20. 22 00 00 – Plumbing, General Purpose: Add Section “2.1.4 Tables” in its entirety after Paragraph 2.1.3.

21. 26 32 15.00 – Engine-Generator Set Stationary 15-2500 KW, With Auxiliaries: Delete

Paragraph and Schedule “2.1.1” in its entirety and replace with the revised paragraph and schedule “2.1.1.R”.

CHANGES TO DRAWINGS:

1. LS101 – 1st Floor Life Safety Plan: Relocate FEC in Corridor 1-2 as shown below:

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2. LS102 – 2nd Floor Life Safety Plan: Relocate FEC in Corridor 2-2 as shown below:

3. AD101 – Demo 1st Floor – Overall: Delete sheet in its entirety and replace with the attached sheet AD101r.

4. AD104r – Demo 1st Floor – Part B: Delete sheet in its entirety and replace with the attached sheet AD104r.

5. AD105r – Demo 1st Floor – Part C: Delete sheet in its entirety and replace with the attached sheet AD105r.

6. AD106r – Demo 1st Floor – Part D: Delete sheet in its entirety and replace with the attached sheet AD106r.

7. AD200 – Demo Elevations: Key Note D30: Add “1/2” Diameter” after “existing” and delete “and ‘bug holes’”.

8. A001 – New Site Plan: Add sheet in its entirety.

9. A002 – Site Details: Add sheet in its entirety.

10. A100 – Crawl Space Plan: Add sheet in its entirety.

11. A103r – 1st Floor – Part A: Add the following to note A09: “See 5/I401 and 6/I401 for more

11-1-042 / 21-006 AD1 - 5 ADDENDUM 1

information.”

12. A104 – 1st Floor – Part B: Add label “B132A” to the door in room labeled “LAB 2 – B132”.

13. A105 – 1st Floor – Part C: Add the following note:

14. A107 – 2nd Floor – Part A:

a. Add (1) “TB1” adjacent to door in Room A211.

b. Add (1) “MB1” on east wall in Room A211.

c. Add the references shown below:

15. A108 – 2nd Floor – Part B: Add (1) “TB1” adjacent to door in Rooms B201, B202, and B213.

16. A110 – 2nd Floor – Part D:

a. Renovation Keynotes: Add the following note “A15 – Add 1-1/2” pipe to railing so that railing is 42” tall.”

11-1-042 / 21-006 AD1 - 6 ADDENDUM 1

b. Detail 1 – Second Floor Plan – Part D: Add note “A15” to railing in Room D200.

c. Detail 1 – Second Floor Plan – Part D: Remove label “D209” from door and replace with label “D210A”.

d. Detail 1 – Second Floor Plan – Part D: Remove label “C215A” from door and replace with label “D215A”.

e. Detail 1 – Second Floor Plan – Part D: Add (1) “TB1” adjacent to door in Rooms D201, D202, D206, D213, and D214.

17. A122 – 1st Floor RCP – Part A: Delete sheet “A122” in its entirety and replace it with attached sheet “A122r”.

18. A130 – Roof Plan: Roof Plan Legend: Add “8” x 8”“ to the beginning of “Alum downspout…” note.

19. A200 – Elevations:

a. Key Note A05:

i. Add “1/2” Diameter” after “existing”

ii. Delete “and ‘bug holes’”

iii. Replace “concrete” in the last sentence with “finish”

b. New Exterior Coating note on Elevations 1, 2, 3, & 5: replace the third word of the note “concrete” with “finish”.

20. A401 – Plan Details:

a. Detail 1 – Main Lobby Plan Detail 1: Make the changes below:

b. Detail 2 – Main Entry Plan Detail: Make the changes below:

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21. A411 – Enlarged Stair Plans:

a. Provide General Note box on the sheet with the following: “General Note: Exterior Stair

Nosing to be Equal to Amstep 509ASR Anti-Slip Safety Stair Tread. Insert color to be chosen from Manufacturer’s Standard Color Line.”

b. Detail 5 – Ext Stair 4 & 6 – 1st Floor:

i. Add reference to Section 7/A411 (Similar) to stair.

ii. Add the following note to exterior stair: “Existing conc stair treads, risers, & landings to remain & to receive new traffic coating & new nosings”.

c. Detail 6 – Ext Stair 4 & 6 – 2nd Floor: Add reference to Section 7/A411 (Similar) to stair.

22. A601 – Crawl Space & 1st Floor Opening Schedule:

a. Opening Schedule – Part B – 1st: Add the following:

i. Opening Number – B132A

Single/Pair – S Door Width – 3’-0” Door Height – 7’-0” Door Material – WD Door Type – 1 Door Glazing – --- Frame Type – 1 Frame Material – HM Frame Glazing – --- Head Detail – 1/A603 Jamb Detail – 2/A603 Sill Detail - ---

23. A602 – 2nd Floor Opening Schedule:

a. Opening Schedule – Part C – 2nd: Remove opening “C215A”.

b. Opening Schedule – Part D – 2nd:

i. Remove opening “D209”.

ii. Add the following:

Opening Number – D210A Single/Pair – S Door Width – 3’-0” Door Height – 7’-0”

11-1-042 / 21-006 AD1 - 8 ADDENDUM 1

Door Material – WD Door Type – 1 Door Glazing – --- Frame Type – 1 Frame Material – HM Frame Glazing – --- Head Detail – 9/A603 Jamb Detail – 9/A603 Sill Detail - ---

iii. Add the following:

Opening Number – D215A Single/Pair – S Door Width – 3’-0” Door Height – 7’-0” Door Material – WD Door Type – 1 Door Glazing – --- Frame Type – 1 Frame Material – HM Frame Glazing – --- Head Detail – 1/A603 Jamb Detail – 2/A603 Sill Detail - ---

24. I401 – Enlarged Finish Floor Plans:

a. Detail 5 – EJ Floor Cover Detail: Delete note “(CS Group PC-2G 100)” and replace with “(Sim to Inpro 801 Series)”.

b. Detail 6 – EJ Floor/Wall Detail: Delete note “(CS Group PCW-2G 100)” and replace with “(Sim to Inpro 801 Series)”.

25. I402 – Enlarged Millwork Plans & Elevations:

a. Details 7 & 8: Make the changes below:

26. I410 – Enlarged Furniture Plans:

a. Detail 5 – Typ. Classroom – Front Wall Elevation: Delete note “Projector Screen” and replace with “Projector Screen, 16:9 aspect ratio, approx.. 6’-0” H x 9’-8” W Pure White reflective surface, 137” dia. 180 degree viewing, provide 12” of screen drop, and tab tensioning system.”

11-1-042 / 21-006 AD1 - 9 ADDENDUM 1

27. I601 – 2nd Floor Finish Schedule:

a. Finish Schedule – Part B – 2nd:

i. Remove note “QTZ-2” from Room B206 and replace with “QTZ-1”.

ii. Remove note “QTZ-2” from Room B207 and replace with “QTZ-1”.

b. Finish Schedule – Part C – 2nd: Remove note “QTZ-2” from Room C200 and replace with “QTZ-1”.

c. Finish Schedule – Part D – 2nd: Remove notes “QTZ-1” and “PLAM-1” from Room D203.

28. E100 – Site Plan – Electrical: Update Site plan with Partial Detail 1/E100 below showing requirements for Tamper Switches and Addressable Monitor Module at BFP.

END OF ADDENDUM 1

11-1-042 / 21-006 AD1 - 10 ADDENDUM 1

ADDENDUM NO. 1 – Questions & Responses

RE: Repair Bryan Hall 6901

MAHG 11-1042

Keesler Air Force Base Biloxi, Mississippi A/E Project No. 21-006

1. Discipline: Architectural

Sheet: A200

Detail: 1

Spec:

Question: South Elevation details on Sheet A200 of the contract drawings state “New Handrail at Site

Stairs – See 7/A002”; however, there is not a Sheet A002 in the contract drawings for Volume 1. Will the Government please provide Sheet A002?

RESPONSE: See sheet A002 in this addendum.

2. Discipline: Architectural

Sheet: G001

Detail:

Question: Drawing Index on Sheet G001 of the contract drawings indicates the Architectural drawings start with Sheet “A001 New Site Plan”; however, the project documents do not contain Sheet A001.

Also, Sheet “A002 Site Details” and “A100 Crawl Space Plan” are not present in Volume 1 of the project documents. Will the Government please provide Volume 1, Sheet A001, A002, and A100?

RESPONSE: See sheets A001, A002, and A100 in this addendum.

3. Discipline: Plumbing

Sheet:

Spec: Section 22 00 00

Question: Subpart 2.1 of Section 22 00 00 of the specifications states that the material for the various plumbing services shall be in accordance with Tables I and II. However, Tables I and II do not exist within the specification section. Please clarify what type of pipe and fittings are required for each plumbing service, i.e., drainage, waste, vent, condensate, pressure pipe, etc.

RESPONSE: See provided attached Table I & II.

4. Discipline: Architectural

Spec: Section 08 11 16 Aluminum Doors & Frames

11-1-042 / 21-006 AD1 - 11 ADDENDUM 1

Question: Paragraph 1.2.1.1 Minimum Antiterrorism Performance Subparagraph a. Dynamic Design

Analysis Method allows for design of the glazed openings and framing members using a design analysis to prove glazed openings provide performance equivalent to or better than a very low hazard rating, Paragraph 1.5.3 of Section 08 11 16 states in part, “…in lieu of a Design Analysis, submit results of standard blast testing, included in a test report, providing information I accordance with ASTM

F2927, as prepared by the independent testing agency performing the test,” and Paragraph 1.6.1 requires blast design calculation be performed by a registered engineer with 5 year experience.

Please clarify the requirements for this ATFP Compliant system as these seem contradictory to one another.

RESPONSE: UFC 04-010-01, Change 1 is the guiding document. A PVB interlayer is required, other blast requirements are not. See updated spec sections.

5. Discipline: Architectural

Spec: Section 08 11 16 Aluminum Doors & Frames

Question: Specification Section 08 11 16 does not state a blast design rating or an ATFP performance rating for the aluminum doors and frames. Please advise if modifications or steel reinforcements are required for the exterior wall openings to accommodate any required blast design rating or ATFP performance rating for the aluminum doors and frames, and if so, what is required?

RESPONSE: Exterior wall structure does not need to be modified to support the new door systems.

6. Discipline: Hazardous Material Abatement

Sheet: G001, AD002

Question: General Notes 2 and 3 on Sheet G001 of the drawings states that asbestos material and lead based paint material is part of this project and that Contractors are to refer to the “Asbestos Report” and the “Lead Based Paint Report” for more information. The Asbestos Report and the Lead Based Paint

Report do not exist within the specifications or on the drawings. Please provide the Asbestos Report and the Lead Based Paint Report.

RESPONSE: See report attached to this addendum.

7. Discipline: Existing FF&E

Sheet: AD111

Question: With regard to the existing furniture, fixtures, and equipment (existing FF&E) that exists within the building, please clarify the following:

11-1-042 / 21-006 AD1 - 12 ADDENDUM 1

A. Details 12 and 23 on Sheet AD111 state that the existing furniture will be removed by others. Is our interpretation correct that all existing FF&E will be removed by others, not just the classroom furniture?

RESPONSE: Correct.

B. Are there any other existing FF&E items that the Contractor is required to remove as part of the contract? If so, please provide a list.

RESPONSE: N/A

C. Will the existing FF&E be removed by others prior to the issuance of the Notice to Proceed or will this work be performed within the 730 day contract duration?

RESPONSE: Prior to Issuance.

D. If the Government is performing this existing FF&E removal work, how many calendar days duration will this work take?

RESPONSE: This work will occur prior to the NTP. No days will be added to the contract.

8. Discipline: As-Builts

Question: Will the Government please provide existing as-built drawings for this building

RESPONSE: Please see addendum for link to the existing drawings.

9. Discipline: Architectural

Sheet: A601 & A104

Detail: Opening Schedule & Floor Plan

Spec: 08 71 10 Hardware Sets

Question: Hardware Set 1.0 includes Opening B132A. Opening B132A does not appear on the

Opening Schedule on Sheet A601. Sheet A104 appears to shown an unlabeled door located in Room

B132. Please clarify and provide the missing information for Opening B132A.

RESPONSE: See addendum for clarification.

10. Discipline: Architectural

Sheet: A602

Detail: Opening Schedule

11-1-042 / 21-006 AD1 - 13 ADDENDUM 1

Question: Opening C215A appears on the door schedule two separate times. Please confirm our interpretation that there is only one (1) Opening C215A.

11. Discipline: Architectural

Question: Section 08 71 10 Hardware Sets includes Opening A110A in Hardware Sets 3.0 and 3.1 and

Opening B105A in Hardware Sets 4.0 and 4.2. Please clarify the correct hardware sets for Openings

A110A and B105A.

RESPONSE: See the revised Hardware Set in this addendum.

12. Discipline: Architectural

Sheet: A601

Detail: Opening Schedule

Question: Section 08 71 10 Hardware Sets includes Opening B136A in Hardware Sets 4.1 and 6.1.

Opening B136A is shown as an aluminum door on Sheet A601 and not a fire rated electrical room opening as the hardware sets indicate. Please confirm our interpretation that Opening B136A is to receive Hardware Set 6.1 and not Hardware Set 4.1.

13. Discipline: Architectural

Sheet: A601 & A602

Detail: Opening Schedules

Spec: 08 71 10 Door Hardware Sets

Question: Hardware Set 4.1 indicates the doors that receive this set are fire rated doors. However, not all of the openings included in this set are shown to receive fire rated doors on the opening schedules.

Specifically, Openings A114A, C108A, A207A, B210A, and C208A. Please confirm if these openings are to receive fire rated doors or not as shown on the Opening Schedules on Sheets A601 & A602.

14. Discipline: Architectural

11-1-042 / 21-006 AD1 - 14 ADDENDUM 1

Question: Hardware Set 4.2 includes Opening D210A. Opening D210A does not appear on the

Opening Schedule on Sheet A602 or on the Floor Plan on Sheet A110. Please clarify and provide the missing information for Opening D210A if required.

15. Discipline: Architectural

Sheet: A601 & A602

Detail: Opening Schedules

Question: Hardware Set 4.2 indicates all of the doors receiving this set are smoke rated doors.

However, not all of these doors are indicated as such on the Opening Schedules on Sheet A601 and

A602. Specifically, Openings A104A, A116A, B116A, C110A, D110A, A209A, B202.1A, B212A, C210A, C214A. Please clarify if these openings are to be provided as smoke rated doors.

RESPONSE: File room doors sets state “smoke” to provide the intent to the bidder of trying to limit the transfer of smoke to the best of our ability without a fully tested assembly since it is not required by code. Code required smoke and fire rated openings are shown on the opening schedule.

16. Discipline: Architectural

Question: There are several doors on the Opening Schedules shown on Sheets A601 and A602 that do not appear in the Door Hardware Sets. Specifically, Openings A110B, B115A, B119A, B120A, B136B, and D209. Please provide the applicable door hardware set for these doors.

17. Discipline: Architectural

Sheet: A200

Question: Renovation Keynote A05 on Sheet A200 of the drawings requires a new exterior concrete coating system to be applied to the exterior walls. What is the specification for the concrete coating system called for in this note?

RESPONSE: Exterior Wall Coating system to be finish coat specified in 07 24 00. Prepare surface per 07 24 00 and 09 90 00 requirements.

18. Discipline: Elevator

Sheet: A412

11-1-042 / 21-006 AD1 - 15 ADDENDUM 1

Spec: Section 14 24 00 Hydraulic Elevators

Question: Subpart 2.3.4 – Hydraulic Elevator Type of Section 14 24 00 of the specifications states, “Provide a direct plunger type hydraulic elevator.” This type of elevator requires the installation of an in-ground cylinder well system (i.e., well casing, liner, etc.) and would require drilling and installing this well system within the existing elevator shaft from within the existing building.

The Ext Stair 5 – Section 4 on Drawing Number A412 does not appear to indicate any type of cylinder well system for the new hydraulic elevator.

Will the Government please confirm that the elevator must, in fact, be a direct plunger type hydraulic elevator with an in-ground well system?

RESPONSE: Twin Jack/Post Hole less hydraulic elevator is acceptable. See addendum for clarification.

19. Discipline: Elevator / Demolition

Spec: Section 02 41 00 – Demolition

Question: What type of elevator is the existing elevator? If the existing elevator is a direct plunger type hydraulic elevator, can the Contractor abandon the existing in-ground cylinder well system in-place?

RESPONSE: Yes, existing is a direct plunger. The existing system can be abandoned and grouted.

20. Discipline: Elevator

Question: Subpart 1.5 – Scheduling of Section 14 24 00 of the specifications states, “Every six months test systems for Firefighters’ Service. . . . For Firefighters’ Service, test monthly . . .”

Please confirm that the Contractor is required to test the Firefighters’ Service (after turnover of the project) and, if so, is the Contractor required to test “every six months” or required to test “monthly?”

21. Discipline: Fire Protection

Spec: Section 21 13 13 – Wet Pipe Sprinkler Systems, Fire Protection

Question: Subpart 3.4.8d of Section 21 13 13 of the specifications states, “All penetrations through the boundary of rooms/areas identified as secure space area must meet ICS 705-1.”

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The contract drawings do not indicate any rooms/areas to be “secure space area.”

Please confirm that Subpart 3.4.8d is not applicable for this project.

RESPONSE: There are no secure space areas in this facility.

22. Discipline: Elevator

Question: Subpart 3.3 – Operation and Maintenance Training of Section 14 24 00 of the specifications states that training is to be provided “for a period of not less than 5 working days.”

Please confirm that the Government did in fact intend on specifying “5 working days” for this training.

23. Discipline: Fire Protection

Question: Subpart 1.2 – System Description of Section 21 13 13 of the specification states, “Provide wet pipe sprinkler system in all areas of the building.” Subpart 1.2.2 – Sprinkler Coverage of Section 21

13 13 of the specifications states, “Provide coverage throughout 100 percent of the building.”

The “FP” contract drawings only indicate that the fire suppression system is to be provided within the first floor areas and the second floor area.

Please confirm that fire suppression is NOT required within the crawlspace area.

Please confirm that fire suppression is NOT required within the five existing exterior stairwells.

RESPONSE: Crawl space is not constructed of combustible material. Fire suppression is not required. Fire suppression is not required for five exterior stairwells.

24. Discipline: Fire Protection

Question: Subpart 3.4.11 – Backflow Preventer of Section 21 13 13 of the specifications states, “Locate in a heated enclosure in locations subject to freezing. For heated enclosures, provide a low temperature supervisory alarm connected to this facility fire alarm system.”

11-1-042 / 21-006 AD1 - 17 ADDENDUM 1

Is the backflow preventer required to be located in an enclosure?

Is the backflow preventer required to be located in a HEATED enclosure?

RESPONSE: No enclosure nor heated enclosure is required per direction of Government. This portion of the spec is to be removed.

25. Discipline: Architectural

Sheet: I

Spec: Section 09 51 00 – Acoustical Ceilings

Question: Subpart 1.2.1 – Ceiling Attenuation Class and Test of Section 09 51 00 of the specifications states, “Provide a ceiling system with an attenuation class (CAC) of 40 for ACT-1.

The Finish Key on Drawing Number I600 of the contract drawings indicates that ACT-1, Acoustical

Ceiling Tile is “Armstrong, Optima, White, 24” x 24” with 15/16” White Prelude Grid.”

According to our review of the manufacturer’s product data for the Armstrong, Optima ceiling tile, there are a variety of different Item Numbers, varying in thickness from 1-inch-thick to 1.5-inch-thick;

however, it does not appear that any of the ceiling tiles have a CAC of 40.

Will the Government please clarify which Armstrong, Optima Item Number is the basis of design that has a CAC of 40?

Additionally, is it the Government’s intent that the Contractor is required to furnish and install acoustical blanket insulation above the acoustical ceilings in order to achieve a CAC of 40? (No acoustical blanket insulation is indicated within the contract drawings.)

26. Discipline: General

Spec: Statement of Work

Question: Paragraph 3.2.2 of the Statement of Work states, “Utilities for the work will be provided by the Government unless otherwise noted.”

Is our interpretation of Paragraph 3.2.2 correct that the Contractor will not be charged for any usage/consumption and connection fees for use of the existing utilities (i.e., water, sanitary sewer, electric, natural gas, etc.) within the existing building and project site for performance of the work and for the Contractor’s on-site project site trailer during the performance of this contract?

RESPONSE: Correct. The Contractor will not be charged for any usage/consumption or connection fees for use of utilities. The Contractor will be responsible for cost required for utility connections. Coordinate electrical connections/disconnections with City Light and Power.

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27. Discipline: Demolition

Sheet: AD101 to AD110

Question: Selective Demolition Keynote D05 on the “AD” sheets states, “Remove floor tile, grout bed & marble threshold down flush to structural slab.”

These existing restrooms where the existing floor tile and grout bed are removed get renovated into mechanical rooms as part of this project.

Is the existing “grout bed” below the floor tile a mud (thick) set installation? If so, how thick is the existing mud set?

Also, if so, will the Contractor be required to place a topping slab on top of the existing structural slab in order to raise the finish floor elevation of the new mechanical rooms to match the building’s finished floor elevations? If so, will the Government please provide a detail on how the topping slab is to be constructed?

RESPONSE: The existing tile is on a thick set grout bed however, this grout bed is on top of the existing slab. Preparation of the slab for new floor finishes is part of demolition means and methods.

28. Discipline: Civil

Sheet: C400

Spec: 21 13 13

Question: Subpart 2.2.1 – Pipe of Section 21 13 13 of the specifications states “Minimum pipe size is 6 inches” for Underground Piping Components. However, on detail 1/ C400 Site Utility Plan on Sheet

C400 indicates new 4-inch fire main for FDC. Please verify if the installation of 4-inch pipe for this connection is correct.

RESPONSE: 4” is correct for this connection to FDC.

29. Discipline: Architectural

Spec: 07 24 00 Exterior Insulation and Finish System

Question: Subpart 1.2.1.3 of Section 07 24 00 of the specifications requires a 4’ x 8’ complete wall mockup be built to demonstrate the proposed EIFS installation. Since the EIFS work on this project is minor and consists primarily of finishing the infill at the new passenger elevator tower, will the

Government consider eliminating the requirement for a separate complete wall mockup?

11-1-042 / 21-006 AD1 - 19 ADDENDUM 1

RESPONSE: This can be an in-place mockup. If accepted, it can remain as part of the project.

30. Discipline: Architectural

Spec: 07 24 00 Exterior Insulation and Finish System

Question: Subparts 1.4.4 and 3.5.1 of Section 07 24 00 of the specifications requires full-time third party inspection of the EIFS installation by a certified Exterior Design Institute inspector. Since the

EIFS work on this project is minor and consists primarily of finishing the infill at the new passenger elevator tower, will the Government consider eliminating the requirement for a full-time third party inspector, and allow the Contractor’s quality control personnel to inspect the EIFS work?

RESPONSE: Bid per drawings and specifications.

31. Discipline: Architectural

Sheet: A410, A411, A412, I400, and I401

Detail: Aluminum Railings

Spec: 05 52 00 Metal Railings

Question: Section 05 52 00 of the specifications include details for aluminum and metal railings;

however, the project drawings do not indicate where there is a metal railing. Will the Government please confirm there are no metal railing installations for this project?

RESPONSE: There are aluminum and metal railings on this project. See addendum for additional information.

32. Discipline: Fire Protection

Question: Subpart 1.2 – System Description of Section 21 13 13 of the specification states, “Provide wet pipe sprinkler system in all areas of the building.” Subpart 1.2.2 – Sprinkler Coverage of Section 21

13 13 of the specifications states, “Provide coverage throughout 100 percent of the building.”

Please confirm that fire suppression is not required below the new raised access floor systems.

RESPONSE: No sprinklers are required below the raised access floors. Cabling below the raised access floors shall be plenum rated.

33. Discipline: Demolition

Sheet: AD101 to AD110

11-1-042 / 21-006 AD1 - 20 ADDENDUM 1

Question: Selective Demolition Keynote D04 on the “AD” sheets states, “Remove existing raised computer flooring system . . . Remove associated concrete fill sub-base (Typ. 2” F.V.) and hot-hopped felt layer beneath (typ).”

There are many areas where these existing raised computer flooring systems and associated 2-inch thick concrete fill sub-base are to be removed where the renovated areas are to receive new finished flooring such as resilient flooring or carpet tile.

Will the Contractor be required to place a topping slab on top of the existing structural slab in order to raise the finish floor elevation of these renovated areas to match the building’s finished floor elevations? If so, will the Government please provide a detail on how the topping slab is to be constructed?

RESPONSE: See addendum for additional information.

34. Discipline: Civil

Spec: 32 17 23 Pavement Markings

Question: Specification Section 32 17 23 Pavement Markings was included in the Specifications for this project however no new pavement markings are indicated in the project documents. Please confirm our interpretation that this section is not required for this project.

RESPONSE: See sheet A001 for locations of striping in the mechanical yard.

35. Discipline: Architectural

Sheet: I402

Detail: 5

Question: Detail 12 Walk Off Mat Detail on Drawing Number I402 shows a surface mounted walk off mat. Please provide the manufacturer, color, and product details.

RESPONSE: See addendum for added section. Basis of Design is C-S Group Pedimat M1

Surface Mounted Tapered Vinyl Frame with carpet insert.

36. Discipline: Architectural

Sheet: I410

Spec: 10 10 00

Question: Detail 5 Typ. Classroom – Front Wall Elevation on Drawing Number I410 shows a projector screen. Please provide the height and width of the projector screen.

RESPONSE: See section 10 10 00 for projector screen specification. See addendum for dimensions.

11-1-042 / 21-006 AD1 - 21 ADDENDUM 1

37. Discipline: Architectural

Sheet: A122-A129

Question: Drawing Numbers A122-A129 show projector locations in several rooms. Please provide a manufacturer and model for these projectors.

RESPONSE: Projectors are government furnished, government installed pieces of equipment and not in the bidder’s scope. It is shown for reference only.

38. Discipline: Architectural

Sheet: I104 and I105

Spec: 10 14 02

Question: Subpart 2.2.1 Standard Room Signs reads a. Frames shall be aluminum ¼ inch wide and b.

End caps shall be molded acrylic with square style corners. The Typical Interior Signage diagrams on

Drawing Number I104 and I105 do not indicate which signs are framed and which have endcaps.

Please clarify whether the signage is to have frames or endcaps.

39. Discipline: Site

Question: Please provide information on the Project Identification and Project Safety Signs.

RESPONSE: See addendum specification Section 01 35 26 Governmental Safety Requirements

40. Discipline: Architectural

Spec: 06 61 16

Question: The Finish Schedule on Drawing Number I601 indicates QTZ-2 is to be used. The Finish Key on Drawing Number I600 does not list QTZ-2. Please provide the material, manufacturer, series, color and size for this material.

41. Discipline: Architectural

Sheet: I601

11-1-042 / 21-006 AD1 - 22 ADDENDUM 1

Question: The Finish Schedule – Part D – 2nd on Drawing Number I601 shows QTZ-1 and PLAM-1 in

Room D203 Conference Room. Please provide a detail and location for the millwork in Room D203.

42. Discipline: Architectural

Spec: 06 61 16

Question: Subpart 2.3.4 Counter and Vanity Tops of Section 06 61 16 of the specification indicates solid surface, polymer counter top and vanity top components shall be fabricated from ½” thick material.

The Finish Schedule on Drawing Numbers I600 and I601 Show QTZ-1 and QTZ-2 are to be used as the counter tops and vanity tops. Please clarify which material is to be used.

43. Discipline: Architectural

Sheet: LS101, LS102, A600, A601, A602

Detail: Overall Life Safety Plans, Partition Types, and Opening Schedules

Question: The partition types shown for the existing partitions around the mechanical rooms seems to indicate that we are to seal them in order to maintain fire/smoke ratings. None of the partitions surrounding the mechanical rooms are identified on Sheets LS101 & LS102 Life Safety Plans as fire or smoke rated partitions. Additionally, none of the doors leading into the mechanical rooms are identified on the Opening Schedules or the Door Hardware Sets as receiving fire rated doors or hardware.

Please clarify.

RESPONSE: Fire and smoke ratings are required as shown on life safety sheets. Bid per drawings and specifications.

44. Discipline: Architectural

Sheet: A103, A105, A107, and A109

Detail: Keynote A09 – Expansion Joint Covers

Question: The drawings indicate new expansion joint covers are to be provided at the floor-to-floor and floor-to wall conditions; however, it is not clear whether new expansion joint covers are required for the wall-to-wall, ceiling-to-ceiling, and wall-to-ceiling conditions. Please clarify the extent of the interior new expansion joint covers.

45. Discipline: Architectural

11-1-042 / 21-006 AD1 - 23 ADDENDUM 1

Spec: 05 52 00

Question: Subpart 2.2.2 of Section 05 52 00 of the Project Specifications states the Contractor is to:

“Provide anodized aluminum railing, color as indicated on the drawings.” Will the Government indicate where the aluminum railing color is described in the project drawings? If not, will the Government provide the color for the aluminum railing?

46. Discipline: Architectural

Sheet: A411, A412

Question: Exterior stair towers 1 through 3 and 4 through 6 detailed on Sheet A411 of the contract drawings do not provide details for the alum railing systems. For bidding purposes, will the Government confirm the aluminum components for these stair towers will resemble the aluminum material dimensions listed on details 5, 6, and 7 on Sheet A412 of the contract drawings?

47. Discipline: Architectural

Sheet: E173 & E174

Question: Sheet E173 & E174 show Knox Boxes are to be installed at the exterior of the building adjacent to Door Nos. 1-0A & 1-7A. However, there are no details regarding these Knox Boxes.

Please provide the following information for each Knox Box:

a. Are they to be surface mounted or recessed mounted?

RESPONSE: Surface mounted

b. What color is required, dark bonze, black, or aluminum?

RESPONSE: Dark Bronze

c. Is integration with a fire alarm / panel or security alarm required?

RESPONSE: Yes

d. Are tamper switches required?

RESPONSE: Yes

11-1-042 / 21-006 AD1 - 24 ADDENDUM 1

48. In the specs, it lists a hot applied 3-ply modified. We're not huge fans of hot mop applications, can I bid a cold applied modified of similar performance instead?

RESPONSE: Provide as specified

49. Has training been provided for the fire alarm/mass notification systems once they are installed on base? According to specifications, the fire alarm vendor is responsible to provide training on the system. (George, please reach out to me if you have questions about this. I can provide more context.)

RESPONSE: Provide per drawings and specifications.

50. Discipline: Civil

Sheet: G002, G005, C400, C500 Detail:

Spec:

Question: Note 2 for the Tree Protection Detail 1 on Drawing Number C500 of the contract drawings states, “Protection zone shall be to the drip line of the tree.”

Drawing Numbers G002 and G005 indicate that there is an existing 48” oak tree to the plan Southeast of the existing building. According to the Site Utility Plan 1 on Drawing Number C400, the new fire water service and fire department connection utility piping is to be installed within the drip line of the existing tree.

Please confirm that it will be acceptable for the Contractor to excavation for the new utility lines within the drip line of the existing 48” oak tree.

RESPONSE: It is acceptable, Bid per plans and specification.

51. Discipline: Architectural Sheet: A411 Detail:

Spec:

Question: The Ext Stairs 1-3 - 1st Floor detail 1 and Ext Stairs 1-3 - 2nd Floor detail 2 on Drawing Number A411 of the contract drawings include a note that states, “Existing conc stair treads, riser, & landings to remain & to receive new traffic coating & new nosings.”

Please provide a specification and/or basis of design for the new “traffic coating” and the new “nosings.”

RESPONSE: Traffic coating to meet requirements of 03 92 50 per this addendum. Tread nosings are to be equal to Amstep Series 509ASR treads.

52. Discipline: Architectural Sheet: A104, A601

11-1-042 / 21-006 AD1 - 25 ADDENDUM 1

Question: The door leading into the Lab 2 Room B132 on Drawing Number A104 is not labeled.

Additionally, this unlabeled door is also not listed on the Opening Schedule - Part B - 1st on Drawing Number A601 of the contract drawings.

Please provide the door number and requirements for the referenced door (at the entrance to Lab 2 Room B132).

RESPONSE: See response for comment 9.

53. Discipline: Architectural Sheet: A109, A110, A602 Detail:

Spec:

Question: Door “C215A” is indicated on Drawing Number A109 at the entrance to Classroom 25 Room C215. However, there is a second door mislabeled as “C215A” to the right side of the match line on A109 and A110 at the entrance to Classroom 26 Room D215. Additionally, the Opening Schedule - Part D - 2nd on Drawing Number A602 of the contract drawings does not list a door for Classroom 26 Room D215.

Please provide the door number and requirements for the referenced door (at the entrance to Classroom 26 Room D215).

RESPONSE: See response for comment 10.

54. Discipline: Architectural Sheet: A103 to A110, I410 Detail:

Spec:

Question: The architectural floor plans indicate the locations of the MB1 (marker boards) and TB1 (tack boards).

The Typ. Enlarged Lab Plan 1 on Drawing Number I410 indicates that a “Tack Board” is to be installed adjacent to the entrance door to the room.

Not all “lab(s)” on the architectural floor plans indicate that a tack board is to be provided.

Is the Contractor required to provide a tack board (TB1) in every “lab,” or only in the “lab(s)” where a tack board (TB1) is indicated on the architectural floor plans?

55. Discipline: Architectural Sheet: A103 to A110, I410 Detail:

Spec:

Question: The architectural floor plans indicate the locations of the MB1 (marker boards) and TB1 (tack boards).

11-1-042 / 21-006 AD1 - 26 ADDENDUM 1

The Enlarged Plan - Classroom C115 (and associated elevations) on Drawing Number I410 indicates that a “Tack Board” is to be installed adjacent to the entrance door to the room and the room is also to receive a “marker board.”

Not all “classroom(s)” on the architectural floor plans indicate that a tack board and a marker board are to be provided.

Is the Contractor required to provide a tack board (TB1) and a marker board (MB1) in every “classroom,” or only in the “classrooms(s)” where a tack board (TB1) and a marker board (MB1) are indicated on the architectural floor plans?

56. Discipline: Architectural

Detail:

Spec:

Question: Please confirm that the “Movable White Board” indicated by the Typ. Enlarged Lab Plan 1 on Drawing Number I410 is to be Government-Furnished, Government-Installed as part of the furniture package.

RESPONSE: Movable White Boards are Government-Furnished and Government-Installed.

57. Discipline: General

Detail:

Spec: Solicitation

Question: Paragraph 3.6 “Supervision” contained within the Statement of Work states that “Contractors shall provide competent supervision familiar with the project and are on-site at all times when work is in progress.” This requirement appears to be ‘boilerplate’ for smaller-magnitude construction, renovation, and repair projects.

Customarily, for a project of this magnitude and complexity, the Government typically requires the Contractor to provide dedicated Quality Control personnel, in addition to the Project Manager and Project Superintendent, to ensure the FAR requirements of Contractor Quality Control are satisfied.

For a contract of this magnitude and complexity, this typically consists of a dedicated Quality Control Manager (“QCM”) and a sufficient number of Quality Control personnel to assist the QCM with his/her duties.

The specifications include reference to the “Quality Control Manager (QCM);” however, do not provide the specific qualifications for the QCM.

Please clarify if the Contractor is required to provide a full-time Quality Control Manager (“QCM”) and an adequate number of Quality Control personnel to assist the QCM with his/her responsibilities. Also, please clarify the specific qualifications for the QCM.

RESPONSE: See addendum for specification Section 01 45 00.00 20 Quality Control.

11-1-042 / 21-006 AD1 - 27 ADDENDUM 1

58. Discipline: Safety

Detail:

Spec: Solicitation

Question: The solicitation indicates that FAR Clause 52.236-13 Accident Prevention is a requirement of the contract. FAR Clause 52.236-13 states that the Contractor shall comply with the latest version of U.S. Army Corps of Engineers Safety and Health Requirements Manual, EM 385-1-1. Section 01.A.17 “Contractor Site Safety and Health Officer” of Section 1 Program Management of EM 385-1-1 states, “The Contractor shall employ at minimum of one CP at each project site to function as the SSHO (primary), depending on job complexity, size and any other pertinent factors. The SSHO shall: (1) Be a full-time responsibility. The SSHO shall be present at the project site, located so they have full mobility and reasonable access to all major work operations during the shift. (2) Be an employee other than the supervisor, unless specified differently in the contract and coordinated with the local SOH Office . . .”

Please confirm that the Contractor will be required to provide a dedicated, full-time Site Safety and Health Officer (“SSHO”) for this contract which is typical for projects of this size and magnitude.

Additionally, please confirm that the SSHO will not be permitted to have any duties outside of safety.

RESPONSE: See addendum for specification Section 01 35 26 Governmental Safety

Requirements.

59. Discipline: Electrical

Detail:

Spec: 26 32 15.00

Question: The “ENGINE-GENERATOR PARAMETER SCHEDULE” on page 15 of Section 26 32 15.00 is missing all data under “Engine-Generator Set Efficiencies” and Engine-Generator Set Emissions Data.” Please provide this information so it may be utilized in generator selection.

60. Discipline: Electrical

Detail:

Spec: 26 32 15.00

Question: Paragraph 2.6.3.1, Capacity, states “Each tank must have capacity to supply fuel to the engine for an uninterrupted 72 period at 100 percent rated load without being refilled.” Please confirm the intended duration was 72 “hours”.

RESPONSE: Confirmed.

61. Discipline: Civil Sheet: C500

11-1-042 / 21-006 AD1 - 28 ADDENDUM 1

Spec: 02 41 00 Demolition

Question: Detail 1 on Sheet C500 indicates the use of 4’ high barricade fencing used for protection of trees to remain during demolition or deconstruction. Paragraph 1.3.3 of Section 02 41 00 specifies the use of 3’ high fencing for this same purpose. Please confirm the correct temporary fencing required for protection of trees during demolition or deconstruction.

RESPONSE: Fence shall be 4 feet tall. See addendum for clarification.

62. Discipline: Electrical Sheet: E-001, E-100 Detail:

Spec:

Question: Sheet E-001 indicates that the transformer and sectionilizer will be by City Light and Power.

Sheet E-100 indicates that the contractors are to “coordinate” requirements with City Light and Power.

Please confirm that the Government will be contracting directly with City Light and Power to furnish and install the transformer and the sectionilizer and that the contractor is not required to include monies for payment to City Light and Power. Also, please confirm that the City Light and Power will be performing the below listed scope of work under contract with the Government.

1. Remove existing transformers

2. Install new transformer and sectionilizer pad (to include demolition of any existing surfaces necessary to install pad)

3. Furnish and install new transformer and sectionilizer

4. Furnish and install new primary wiring

5. Terminate primary wiring

6. Terminate secondary wiring at transformer

7. Any necessary testing of equipment and wiring installed by above items.

RESPONSE: Contractor to be responsible for the following: Installation of new transformer and sectionilizer pad, including the demolition of any existing surfaces necessary to install pads, and the termination of secondary wiring at transformer.

63. Discipline: Fire Protection / Life Safety Sheet: LS101, LS102 Detail:

Spec: 10 44 16 Fire Extinguishers

Question: Subpart 2.4.2 of Section 10 44 16 states that the fire extinguisher cabinets (FEC) are to be semi-recessed type and Sheets LS101 and LS102 show the locations of these FECs. Most of the new locations are in the corridors where the existing walls are concrete or masonry. Would the Government consider modifying the specification to surface-mounted fire extinguisher cabinets to avoid cutting holes in the existing concrete or masonry load bearing walls?

RESPONSE: Fire extinguisher cabinets are to be installed in new metal stud walls. See addendum for clarification.

64. Discipline: Architectural Sheet: A603, A604 Detail: Various

11-1-042 / 21-006 AD1 - 29 ADDENDUM 1

Question: Based on the elevations of the exterior glass (which extends to a height of 22’-10”) and the descriptions utilized on the head jamb, and sill details which include “CW” it appears the intent is for the exterior glass system to be a curtainwall system and not storefront. However, the specifications do not include UFGS 08 44 00 “CURTAIN WALL AND GLAZED ASSEMBLIES” which appears to be operative for the system depicted on the drawings. Please add this specification if deemed applicable.

RESPONSE: See addendum for updated specification section.

65. Discipline: Architectural Sheet: A603 Detail:

Spec: 08 11 16 and 08 81 00

Question: With respect to exterior glazed systems and doors, there is reference throughout the drawings and specifications to “meeting the minimum antiterrorism performance” and “ATFP compliant”, this can be found in Paragraph 1.2.1.1 of Section 08 11 16, Paragraph 2.4 of Section 08 81 00 and the glazing schedule on Sheet A603. We request that the Government confirm that the building is being designed in accordance with the current version of UFC 4-010-01, Change 1, 19 August 2020. This version of the UFC does not require openings and curtainwall systems to be designed for blast loads, per Section 3-11 of UFC 4-010-01 “Glazing that is in compliance with this standard is not required to be designed or constructed for blast resistance”. The requirement in the current UFC with respect to exterior glazed systems and doors is limited to the glazing being laminated glass with a plastic interlayer and doors being outswing. Versions of UFC 4-010-01 after 9 February 2012 (Change 1, 1 October 2013) removed the requirement for performance-based blast analysis for openings (frames, glazing, anchorage). Please confirm this is correct and that any requirements current in the specification, such as Paragraph 1.2.1.1.a “Dynamic Design Analysis” under section “Minimum Antiterrorism Performance” are not applicable to this project.

RESPONSE: Correct. UFC 04-010-01, Change 1 is the guiding document. A PVB interlayer is required, other blast requirements are not. See updated specification sections.

66. Discipline: Electrical Sheet: E504 Detail: 2 Spec: 28 31 76

Question: Detail 2 on Sheet E504 indicates the fire alarm control panel as “Siemens Model Fire Finder FMNP”. A review of section 28 31 76, Section 01 of the specification, and the solicitation does not identify that “Siemens” is a sole sourced…