BL016_26 Addendum_2.pdf

January 9, 2026

ADDENDUM #2

BL016-26, Library Administration Headquarters Renovation Project

This Addendum forms a part of the Contract Documents and Construction Drawings and modifies the original Bid Documents for the above-referenced project.

REVISIONS (SPECIFICATIONS):

RS1. A REVISED BIDDING FORM is included as an attachment to this addendum. Bidders must submit their bids on the revised bidding form.

RS2. Section 07 01 50 [Preparation for Re-Roofing]: Refer to attached specifications 07 01 50 [Preparation for Re-Roofing], dated January 9, 2026, for revisions in BOLD text.

RS3. Section 27 40 00 [Audio Visual Systems]: Refer to attached specifications 27 40 00 [Audio Visual Systems], dated January 9, 2026, for revisions in BOLD text.

RS4. Section 21 22 00 [Clean Agent Fire Extinguishing Systems]: Refer to attached specifications 21 22 00 [Clean Agent Fire Extinguishing Systems], dated January 9, 2026, for revisions in BOLD text.

REVISIONS (DRAWINGS):

RD1. Refer to enclosed revised drawing sheet C1.01 with latest revision date of 01/09/2026 for revisions in clouded area.

RD2. Refer to enclosed revised drawing sheet C4.01 with latest revision date of 01/09/2026 for revisions in clouded area.

RD3. Refer to enclosed revised drawing sheet C5.01 with latest revision date of 01/09/2026 for revisions in clouded area.

RD4. Refer to enclosed revised drawing sheet A2.01 with latest revision date of 01/09/2026 for revisions in clouded area.

RD5. Refer to enclosed revised drawing sheet A2.02 with latest revision date of 01/09/2026 for revisions in clouded area.

RD6. Refer to enclosed revised drawing sheet A4.02 with latest revision date of 01/09/2026 for revisions in clouded area.

RD7. Refer to enclosed revised drawing sheet A9.61 with latest revision date of 01/09/2026 for revisions in clouded area.

RD8. Refer to enclosed revised drawing sheet A9.62 with latest revision date of 01/09/2026 for revisions in clouded area.

RD9. Refer to enclosed revised drawing sheet A10.02 with latest revision date of 01/09/2026 for

RD10. Refer to enclosed revised drawing sheet A11.00 with latest revision date of 01/09/2026 for revisions in clouded area.

RD11. Refer to enclosed revised drawing sheet PD1.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD12. Refer to enclosed revised drawing sheet P1.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD13. Refer to enclosed revised drawing sheet P4.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD14. Refer to enclosed revised drawing sheet P6.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD15. Refer to enclosed revised drawing sheet M0.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD16. Refer to enclosed revised drawing sheet M1.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD17. Refer to enclosed revised drawing sheet M5.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD18. Refer to enclosed revised drawing sheet M6.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD19. Refer to enclosed revised drawing sheet M7.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD20. Refer to enclosed revised drawing sheet E1.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD21. Refer to enclosed revised drawing sheet E2.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD22. Refer to enclosed revised drawing sheet E4.01with latest revision date of 01/09/2026 for revisions in clouded area.

RD23. Refer to enclosed revised drawing sheet E5.02 with latest revision date of 01/09/2026 for revisions in clouded area.

RD24. Refer to enclosed revised drawing sheet E6.02 with latest revision date of 01/09/2026 for

RD25. Refer to enclosed revised drawing sheet FA0.01 with latest revision date of 01/09/2026 for

RD26. Refer to enclosed revised drawing sheet AV-301 with latest revision date of 01/09/2026 for

RD27. Refer to enclosed revised drawing sheet AV-401 with latest revision date of 01/09/2026 for revisions in clouded area.

RD28. Refer to enclosed revised drawing sheet AV-501 with latest revision date of 01/09/2026 for

CLARIFICATIONS:

C1. The bidding form has been revised to correct a clerical error. Refer to the attached REVISED

BIDDING FORM.

C2. Gwinnett County retained United Consulting to test samples of black floor mastic for the presence of asbestos fibers. The analysis determined that regulated concentrations of asbestos fibers were not detected. Please refer to the enclosed Limited Asbestos Survey Report prepared by United Consulting, dated January 8, 2026, for additional information.

C3. Refer to enclosed existing building design intent drawing sheets A-2, A-3, and A-15, dated

12/09/1988, for illustration of the exterior doors and windows requiring re-sealing and re-painting of steel lintels. Refer to the General Notes 16 and 17 on drawing sheet A2.02 for additional information.

QUESTIONS & ANSWERS:

Q1. Paragraph 1.8 MAINTNANCE MATERIALS SUBMITTALS. It has been our experience that the end user does not want these Items, and that they represent an unnecessary additional cost.

Are Maintenance Materials to be included in the Base Bid, or will be allowed to show them as an Add Alternate?

A1. We understand the question refers to the specification section 21 22 00 paragraph 1.8. If so, please include items specified in the base bid.

Q2. Paragraph 2.1 CLEAN-AGENT SYSTEMS Item B under this section calls out protection of the room cavity above and below the ceiling, and below the raised floor as separate Zones. Zoning of this type is not allowed by NFPA 2001, “Standard on Clean Agent Extinguishing Systems”.

Also, there are no raised access floors in the IT Lab or MDF Room. Are we to include Clean Agent protection of the area above the ceilings in the IT Lab and MDF Room?

A2. There is an existing raised floor in the Library IT Lab. We understand the question refers to the specification section 21 22 00 paragraph 2.1. If so, Contractor shall provide protection coverage within the room and below the floor.

Q3. Paragraph 2.9 CONTROL PANELS Item F under this section calls out a Graphic Annunciator

Panel. This Graphic Annunciator is also called out in Paragraph 2.14 ANNUCIATOR PANEL and one would be required for the IT Lab and the MDF Room. These rooms are small and the number of annunciated devices is limited, which calls into question the cost/benefit aspect of this requirement. Are we to include the cost of a Graphic Annunciator Panel for the IT Lab and MDF Room in the Base Bid, or will be allowed to show them as an Add Alternate?

A3. We understand the question refers to the specification section 21 22 00 paragraph 2.9. If so, please include them in the base bid.

Q4. Paragraph 2.15 DIGITAL ALARM COMMUNICATOR TRANSMITTER The function of a Digital

Alarm Transmitter Communicator is to provide for reporting of Alarm and Trouble conditions to an off-site Central Monitoring Station. The Fire Alarm System for the building already has this functionality, and the Clean Agent Panels will be monitored by the building Fire Alarm Panel, so this seems to be an unnecessary duplication/expense. Are we to include the cost of a Digital Alarm Communicator Transmitter for the IT Lab and MDF Room in the Base Bid, or will be allowed to show them as an Add Alternate?

A4. We understand the question refers to the specification section 21 22 00 paragraph 2.15.

Paragraph 2.15 is deleted from the specifications. Refer to the enclosed revised specification section.

Q5. May we know the full height to deck of the Library Administration Headquarters Renovation

Project?

A5. Please refer to the supplemental drawing ASD-01, issued in Addendum No. 1, for approximate deck heights per the original building construction documents. Contractor shall field verify for more accurate as-built information.

Q6. I’ve been informed that WT-3, ROCA Suite Couvet Blanco has been discontinued. Please let me know if you have a replacement selected for this material, or if you’d like me to include an allowance instead.

A6. Please refer to revisions to WT-3 and WT-2 in the Materials Finish Schedule on enclosed sheet A11.00

Q7. For the restroom wall tile, I see that there are 2 tiles called out in the Finish Schedule. I see the elevations for Wet Walls (WT-3), and that tile extends to the ceiling height. I do not see that same information for the non-wet walls. Are we to follow the same guidance for those that are to receive WT-2?

A7. All restroom walls to receive full height tile.

Q8. Please clarify which manufacturers are allowed for the DDC controls system. Per 23 09 00 –

1.1 F. – It appears Trane is the only approved manufacturer/installer, however 23 09 00 – 2.1 F. lists additional manufacturers/installers.

A8. Due to compatibility with existing BMS monitoring, Trane-only is desired. Disregard other manufacturers listed in 2.1.

Q9. With the second jobsite visit scheduled for Jan 8th, can the RFI deadline be extended to Jan

9th in case any additional issues arise from the site visit?

A9. No, it will not be extended.

Q10. What Landscaping scope of work (if any) is required? It is not shown on plans.

A10. Landscaping is not in the project scope.

Q11. Is the Pre-Fab Metal Storage Shed part of the GCs scope of work on this project? If so, please provide additional specifications.

A11. No, it was removed in Addendum No. 1.

Q12. Please provide specs for the Demountable Partitions.

A12. Detail 10/A4.02 has been revised to include more information, and a new detail has been added to A9.62 to provide additional information about the demountable partition.

Q13. Please confirm the anticipated start date of the project.

A13. The County anticipates award of the contract in early February or early March 2026. As such, the County anticipates a Notice to Proceed in mid-March or mid-April 2026, depending on when Board of Commissioners approval is obtained.

Q14. [Fire Alarm, Electrical Notes vs Specs Section 28 46 21.11]: The electrical notes require removal of all existing fire alarm devices back to source and provide a new FACP, while the fire alarm specification indicates that new components shall operate as an extension of the existing system and that existing equipment shall be maintained operational until new equipment is tested and accepted. Please confirm whether the project intent is (1) full replacement of the fire alarm system including a new FACP and devices, or (2) extension/partial modification of the existing system, and identify what existing equipment (if any) is to remain.

A14. Intent is FULL REPLACEMENT.

Q15. [Fire Alarm, Sequence of Operations Matrix]: The fire alarm specification repeatedly states to

“refer to drawings for specific Sequence of Operations Matrix,” but the electrical notes state the fire alarm drawings are schematic and show minimal devices, and the bid set does not clearly present a project-specific input/output cause-and-effect matrix for integrated functions (door releases, HVAC shutdown, smoke control references, etc.). Please provide the required Sequence of Operations Matrix (cause-and-effect) that governs all required interfaces and outputs for this project, including any required door hardware releases, HVAC shutdown points, and any emergency shutoff functions.

A15. Fire Alarm Matrix is added. Please refer to the enclosed revised drawing sheet FA0.01.

Q16. [Arch Sheet A3.14 – Typical Roof Details; Specs Vol II, Section 07 54 19] Sheet A3.14 defines the typical method for localized existing roof deck repair as part of the new roofing assembly.

However, the Contract Documents do not define the quantitative limits of deck repair included in the Base Bid. Please confirm that roof deck repairs are limited to localized preparation as shown on A3.14, and that any widespread or deteriorated deck conditions beyond this typical detail are excluded from the Base Bid and to be addressed by allowance or change order if encountered.

A16. These allowances are defined in specification 01 21 00 "Allowances." The quantity of Allowance No. 7 is missing and has been corrected to 150 screws as part of this addendum. Please refer to the enclosed specification section 07 01 50.

Q17. [Low Voltage, Device/Equipment List]: The low voltage plan includes a device/equipment list with quantities (switches, UPS, WAPs, etc.), but procurement responsibility (owner-furnished vs contractor-furnished) is not explicitly stated in the excerpted schedule. Please confirm whether the listed low voltage equipment is contractor-furnished/installed or owner-furnished with contractor installation only, and identify any County-provided standards for acceptable manufacturers/models.

A17. The General Contractor shall be responsible for furnishing and installing the equipment listed for both the Library and the County.

Q18. [Addendum 1, Fire Protection scope and permitting]: Fire protection permitting, plan review, inspections, and acceptance testing responsibilities are not clearly assigned for sprinkler modifications and any new underground fire service. Please confirm responsibility for permitting, submissions, fees, inspections, flushing, hydrostatic testing, and final acceptance documentation.

A18. All shall be the General Contractor’s responsibility.

Q19. [Section 07 01 50 deck repair and abandoned opening requirements]: The specifications reference steel deck replacement methods and conditions, but the drawings do not quantify abandoned openings or provide a deck penetration survey. Please confirm whether deck opening repairs and steel deck replacement are to be carried as an allowance or unit-price item, and provide basis quantities or a roof deck opening schedule for bidding.

A19. The size and locations of abandoned penetrations are indicated on the mechanical drawings for the project. All required deck repairs associated with abandoned penetrations shall be included in the Base Bid.

Q20. [Civil paving work, Addendum 1 Q and A related to milling and overlay]: Milling and overlay thickness is referenced, but the full limits, tie-ins, and base repair assumptions are not clearly defined for bidding. Please confirm the full limits of milling and overlay, tie-in requirements, and whether any base repairs or subgrade remediation are included or excluded.

A20. The limits of each repair are indicated by the hatch pattern shown in the legend on the Pavement Plan. The tie-in location at Lawrenceville Highway is shown as revised on the Pavement Plan.

Areas of asphalt pavement removal and replacement shall be full-depth repairs, including base and subgrade remediation, to ensure proper subgrade compaction, as revised on Detail Sheet C4.01 enclosed.

Q21. On Sheet E1.01 the symbol MA is directing to 4 sets of fixtures in conference room 511. What is MA?

A21. MA is not an electrical item and has been removed. Refer to the enclosed revised drawing.

Q22. The note at the bottom of the electrical fixture schedule is obscuring the fixture type and description. Please clarify.

A22. Footnote has been removed. Refer to the enclosed revised electrical drawing.

Q23. The one-line drawings for the Conference Rooms show that the Basis of Design is Cisco, but the specifications call for Poly as the Basis of Design. Please confirm that Cisco is the Basis of Design for the Conference Rooms. (AV-401).

A23. Per county standard, only Cisco equipment is used. Refer to revised specifications.

Q24. The one-line drawings show that the Basis of Design is the Samsung QB Series for displays, but the specifications call for the Samsung QM Series. Please clarify which series is desired.

(AV-401).

A24. The layer in the one-line drawings with the model number was inadvertently left on. The specification is correct. Refer to the enclosed revised drawing.

SUBSTITUTION REQUESTS:

SR1. Section Number 09 84 33 Sound-Absorbing Wall and Units Request:

Request: Substitute J2 Systems J2 Batten Panel for the bases-of-design Turf Slate S4 Panel.

Answer: Rejected. Bases-of-design Turf Slate S4 Panel has a specified finish that is not available in the requested substitution product. Also, the sizing comparison provided is insufficient for the architect to evaluate further.

SR2. Section Number 09 84 33 Sound-Absorbing Wall and Units Request:

Request: Substitute J2 Systems J2 PET Felt Box Baffle for Unlit Acoustical Ceiling baffle for the bases-of-design Focal Point Seem 2 Acoustical Unlit Answer: Rejected. Bases-of-design Focal Point Seem 2 Acoustical Unlit has a matching light fixture incorporated into the design. Also, the specified finish is not available in the requested substitution product.

This addendum should be acknowledged in the space provided on page 000410-3 of the bid documents and returned with your bid. Failure to do so may result in your bid being deemed non-responsive.

Thank you, Jake Scarpone

Jake Scarpone, CPPB Purchasing Associate III

Attachments:

1. Pre-Bid Conference 2 Sign-In Sheets, dated 1/8/26

2. REVISED BIDDING FORM

3. Specification Section 07 01 50 PREPARATION FOR RE-ROOFING

4. Specification Section 21 22 00 CLEAN-AGENT FIRE-EXTINGUISHING SYSTEMS

5. Specification Section 27 40 00 AUDIO VISUAL SYSTEMS

6. Limited Asbestos Survey Report prepared by United Consulting, dated January 8, 2026

7. Civil drawing sheets C1.01, C4.01, and C5.01 with revision date of 1/9/2026

8. Architectural drawing sheets A2.01, A2.02, A4.02, A9.61, A9.62, A10.02, A11.00 with revision date of 1/9/2026

9. Existing building design intent architectural drawing sheets A-2, A-3, and A-15, dated

12/09/1988

10. Plumbing drawing sheets PD1.01, P1.01, P4.01, and P6.01 with revision date of 1/9/2026.

11. Mechanical drawing sheet M1.01, M5.01, M6.01, and M7.01 with revision date of 1/9/2026.

12. Electrical & Fire Protection drawing sheets E1.01, E2.01, E4.01, E5.02, E6.02, and FA0.01 with revision date of 1/9/2026

13. Audio Visual drawing sheets AV-301, AV-401, AV-501 with revision date of 1/9/2026

14. Substitution request for Sound-Absorbing Wall unit

15. Substitution request for Sound-Absorbing Ceiling unit

PRE-BID CONFERENCE 2

BL016-26

Representative Name Company Name Phone # E-Mail Address

(DEPARTMENT REPRESENTATIVES SIGN-IN AT BOTTOM)

1.

Mark Shively

BCI

404-428-2378 mshively@buskercom.com

2.

Mike Everett

EMC Security

678-879-1234 meverett@emcsecurity.com

3.

Howard Freeman

Rosie’s Roofing

470-571-5038 mfreeman@rosiesrestoration.com

4.

Jordan Harris

Good Shepherd Roofing

678-925-6996 jordan@goodshepherdroofing.com

5.

6.

7.

8.

9.

10.

11.

12.

13.

Department Representative Name

Department

Department Representative Name

Department mailto:mshively@buskercom.com mailto:meverett@emcsecurity.com mailto:mfreeman@rosiesrestoration.com mailto:jordan@goodshepherdroofing.com

Library Administration Headquarters Renovation Project COMPANY NAME__________________________________________________________________________

REVISED BIDDING FORM

000410-1

Bidder submits the following lump sum/unit prices for the Library Administration Headquarters Renovation Project identified in Bid Form as part of this Bid. Failure to utilize and return this form as a part of the bidding documents may result in rejection of bid.

ITEM

The undersigned agrees to provide all necessary labor, material, and equipment for the as defined in the Construction Documents for:

A. BASE BID, Library Administration Headquarters Renovation Project

LUMP SUM BASE BID

Dollars and Cents

B. ALLOWANCE NO. 1, See Specification Section 01 21 00 Allowances for details.

Three Hundred Thousand___________________________ Dollars and _____No______ Cents

__($ 300,000.00 )

C. TOTAL BID AMOUNT, Base Bid (A) + Allowance No. 1 (B)

_____ ______________________ Dollars and _____________ Cents

D. ALLOWANCE NO. 1 ACKNOWLEDGEMENT

A three hundred thousand dollar ($300,000.00) allowance shall be provided as part of the Total Bid Amount of this project to be used at the Owner’s direction for work to be performed under the Contract, including but not limited to, a new monument sign, moving services for moving County departments into the renovated spaces, additional scope, unforeseen conditions, or Owner-selected items. All expenditures from this allowance shall be authorized in writing by the Owner and itemized on the pay application schedule of values. Unused portions of the allowance shall be credited to the Owner by Change Order at the completion of the Project. (See Specification Section 01 21 00 Allowances for additional details).

Confirmed: _________________________________________ (Signature)

REVISED BIDDING FORM

BL016-26 Library Administration Headquarters Renovation Project Rev A / Addendum 1 Rev B / Addendum 2

01 DEC 2025

02 JAN 2026

09 JAN 2026

PREPARATION FOR RE-ROOFING

07 01 50 - 1

SECTION 07 01 50

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1. Section 072216 – Roof Board Insulation

2. Section 075423 – Thermoplastic Polyolefin (TPO) Membrane Roofing

3. Section 076200 – Flashing and Sheet Metal

B. SUMMARY

1. Facility protection including but not limited to, exterior walls/windows, interiors, existing roofing, installed roofing materials.

C. ACTION SUBMITTALS

1. Prior to the start of work, submit the following to the Owner for approval:

a. Product submittals for all items to be used for interior protections, including technical data sheets and Material Safety Data Sheets for products proposed for use.

D. QUALITY ASSURANCE

1. Applicator Qualifications: A qualified firm that is approved, authorized, or licensed to install the specified products. The firm shall have a minimum of 5 years documented experience performing work equal or similar to the specified work.

PART 2 - PRODUCTS

2.1 SHEET METAL: 20-gauge galvanized steel.

2.2 SODIUM HYPOCHLORITE 5% SOLUTION: Clorox, As Manufactured By The Clorox Company, 1221 Broadway Oakland, California 94612, or approved equal prior to bid.

2.3 METAL DECK PRIMER: Kem Kromik as manufactured by Sherwin Williams or approved equal.

Rev B / Addendum 2

01 DEC 2025

07 01 50 - 2

2.4 METAL DECK: ASTM A 653, galvanized G-90 deck, manufactured in accordance with the requirements of the Steel Deck Institute, Inc. for wide rib (Type B). Minimum section properties:

A. Yield strength = 33 ksi.

B. Thickness: 22 gauge.

C. Panel Coverage: Minimum 36 inches. Deck-To-Joist Fastener: ASTM A240, 410 stainless steel, self-drilling minimum #12 stainless steel screw with a nominal head diameter of 0.430 inches.

Screws shall penetrate the substrate a minimum of 1-1/2 inch.

2.5 DECK SIDE LAP SCREWS: ASTM A240, 410 stainless steel, self-drilling minimum #10 stainless steel screw with a nominal head diameter of 0.415 inches. Screws shall penetrate the substrate a minimum of 1 inch.

2.6 DECK-TO-JOIST FASTENER: ASTM A240, 410 stainless steel, self-drilling minimum #12 stainless steel screw with a nominal head diameter of 0.430 inches. Screws shall penetrate the substrate a minimum of 1-1/2 inch.

2.7 MASONRY FASTENER:

A. Masonry Anchor, minimum 1-1/4 inch into substrate, as manufactured by OMG Roofing Products

B. Tapcon ¼” x minimum 1-1/4” in the substrate, as manufactured by Buildex.

C. Roofing Spike, minimum 1-1/4 inch into substrate, as manufactured by Powers Fasteners.

D. approved equal prior to bid.

2.8 WOOD SCREWS: 12 double-coated galvanized steel screws or stainless steel self-tapping wood screws that shall be able to resist any galvanic action that may be able to develop between the nail and the pressure treatment. The use of a lesser quality screw will not be approved. Screws shall be of sufficient length to penetrate a minimum of 1-1/2-inches into the substrate.

2.9 WOOD NAILS: For securing new lumber to new lumber or new plywood/OSB to new lumber, double-coated galvanized steel or stainless-steel ring shank nails to penetrate a minimum of 1- 1/2 inches into the substrate but not smaller than 8d nails. Use 16d nails where material being secured is 1-1/2-inches to 2-inches thick.

PART 3 - EXECUTION

3.1 GENERAL

A. Limit size of work sections to safeguard adjacent materials, structures, etc., and to minimize dust and noise. Size of work sections shall be no larger than can be made watertight in the same day and prior to any inclement weather.

Rev B / Addendum 2

01 DEC 2025

07 01 50 - 3

B. Protect existing facilities from damage during work. Do not overload existing paving, curbs, sidewalks, etc. with vehicle traffic. Do not overload new or existing construction with demolition debris, equipment, etc.

C. Walls, windows, roof edges, etc., adjacent to pump lines, hoists, and staging areas shall be protected using canvas tarpaulins. Plastic or felt will not be acceptable.

D. Plywood, minimum ¾" thick, or other suitable materials shall be used to protect roof areas from damage that may be caused by concentrated equipment loads and foot traffic.

E. Roof traffic shall be confined to work areas. Contractor shall be responsible for leaks that develop in traffic areas during and after project completion.

F. Self-supporting ramps shall be used where expansion joints, area dividers, etc. are to be crossed.

G. Contractor shall protect interior operations from adverse weather during roofing operations.

H. At the end of each work day, the contractor shall apply nightly temporary tie-ins to ensure that the building is weather tight, and that newly installed materials are free from moisture and debris. Newly installed materials coming in contact with moisture and debris is grounds for rejection of materials and shall constitute the replacement of the materials with like materials at no additional cost to the Owner.

I. The Contractor will be held liable for any damages to the building, building contents, its occupancy, grounds or landscaping resulting from work under the Contract. In the event of damage, Contractor will restore property to a condition equivalent to that at the time the project started.

J. The Contractor shall keep existing drainage facilities and associated leaders/downspouts clear of debris and bitumastic materials during construction. The Contractor will be required to use elastomeric plugs to protect leaders/downspouts during demolition and re-roofing operations.

K. Prior to the start of re-roofing operations, the Contractor has the option to water test all drain leaders and lines for clogs prior the start of work. All findings shall be immediately reported to the Owner/Engineer in writing for direction prior to proceedings.

1. Failure to perform this option and proceeding with work shall serve as the acceptance of the existing drain leaders and lines to be functioning at one hundred percent (100%) capacity prior to the start of re-roofing operations.

2. Furthermore, with this acceptance, the Contractor shall be responsible to ensure that drain leaders and lines are functioning at one-hundred (100%) capacity prior to the Final Payment at no additional cost to the Owner.

L. Prior to the start of re-roofing operations, the Contractor shall provide Owner personnel with plastic bags/tarps which will be used by personnel to protect televisions, computers, and other associated equipment during the period of time that re-roofing operations are occurring.

Bags/tarps shall be provided a minimum of one week prior to the start of re-roofing operations.

Costs for providing such materials shall included in the Base Bid.

Rev B / Addendum 2

01 DEC 2025

07 01 50 - 4

M. Contractor will still be required to provide any other additional protection to interior items as may be deemed necessary to comply with the requirements of the Contract Documents.

N. Anchor all roof-mounted equipment to resist uplift, sliding and overturning according to FM Property Loss Prevention Data Sheet 1-28, Wind Design, Sections 2.6 and 3.8.

3.2 DEMOLITION

A. Refer to Section 011100 Summary of Work.

B. General: Demolish and remove existing construction only to the extent required by new con-struction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Proceed with selective demolition systematically, from higher to lower level. Complete selective demolition operations above each floor or tier before disturbing supporting members on the next lower level.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cut-ting methods least likely to damage construction to remain or adjoining construction.

Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

4. Do not use cutting torches until work area is cleared of flammable materials. At con-cealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devic-es during flame-cutting operations.

5. Maintain fire watch during and for at least one hour after flame-cutting operations.

6. Maintain adequate ventilation when using cutting torches.

7. Remove equipment and lower to ground by method suitable to avoid free fall and to pre-vent ground impact or dust generation.

8. Locate selective demolition equipment and remove debris and materials so as not to im-pose excessive loads on supporting walls, floors, or framing.

C. Any strainers and/or clamping rings that are damaged and/or lost during the re-roofing project shall be replaced with new strainers and/or clamping rings at no additional cost to the Owner.

1. Any plastic strainers shall be discarded and replaced with new cast iron strainers. This cost shall be included in the Base Bid.

D. The removal of roof-mounted equipment and/or curbs, as identified either on plans and/or marked on the roof, shall be included in the Base Bid.

E. The Designer and Contractor shall document the actual quantities removed for materials bid on a unit price basis.

F. Raising curbs, associated roof top units or other equipment as required to achieve minimum 8 -inch base flashing height and obtain specified manufacturer's warranty shall be included in the base bid.

Rev B / Addendum 2

01 DEC 2025

07 01 50 - 5

G. All existing roof-mounted equipment shall be lifted or removed so that existing flashings can be totally removed.

H. Remove only as much material as can be totally replaced in the same day.

I. Demolition shall be performed by personnel familiar with the replacement of materials being used.

J. Demolition adjacent to areas to remain shall be performed in a neat manner with straight lines to facilitate tie-ins of replacement materials. Contractor shall review tie-in methods with the Designer for approval. Designer has final approval of such methods.

K. Excessive demolition, as determined by the Owner's representative, shall be replaced with equal materials at the Contractor's expense in accordance with the General Conditions of the Con-tract.

L. No demolition shall be performed if the chance of precipitation is 40% or more as reported by the nearest office of the National Weather Service.

M. Existing through-wall flashing shall remain unless otherwise indicated.

N. Demolition shall be staged in a manner to prevent traffic, debris, staining or dust accumulation on newly applied roofing. Contractor is responsible for cleaning the new roof system.

O. Prior to the installation of any new roofing, flashings, metal flashings, any other miscellaneous items, the Contractor shall clean surfaces of all dust, dirt, and other foreign materials.

P. Inspect the deck carefully. If, in Contractor's opinion, there are metal deck areas that require re-pair and/or replacement, notify the Designer. Do not proceed with any repairs or replacement until directed by the Designer.

Q. Prior to the installation of any new roofing materials, extend all existing soil pipe vents through the roof to a minimum height of 8 inches (or as required by local plumbing codes) above the fin-ished roof surface. Furnish a piece of PVC piping that will fit snugly into the existing soil pipe vent and shall extend into the pipe a minimum of 12 inches. Provide a second PVC pipe that fits snugly around the smaller PVC pipe and shall provide a minimum 8" height above the fin-ished roof surface. The smaller pipe height shall match the outer pipe. Cement the two PVC pipes together with an approved pipe solvent/glue. Insert the extension into the existing soil pipe vent.

1. Note: The placement of a PVC pipe extension directly on top of the existing soil pipe vent without the support method described above shall be removed by the Contractor and new extensions approved by the Designer shall be installed at no additional cost to the Owner.

R. Unit Price Work:

1. (Allowance No. 1 2) Where wood blocking or curbs are damaged or deteriorated, re-move existing wood blocking to a point 6 inches beyond the damage and/or deteriora-tion, and repair and/or replace with new wood blocking to match existing. Secure new blocking to the substrate using specified screws at spacings not to exceed 12 inches on-

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07 01 50 - 6 center, staggered pattern.

a. (Allowance No. 1 2) Contract shall include 150 board feet of wood blocking re-placement in the Base Bid.

2. (Allowance No. 2 3) Where steel decking is rusted but remains structurally sound, wire brush deck units so that all rust is removed. Paint with specified metal primer, or ap-proved equal, and allow to dry before proceeding with the installation of new materials.

a. (Allowance No. 2 3) Contract shall include 650 square feet of metal deck priming in the Base Bid.

3. (Allowance No. 3 4) Where steel decking is damaged or rusted through in small areas (less than 6-inches in any direction), clean deck of rust with a wire brush. Paint with specified metal primer or approved equal. Install over the damaged area the specified sheet metal that shall be secured to the existing steel deck with specified deck screws located 1 inch from the perimeter of the plate, and at 6 inches on center. Extend the new steel plate a minimum of 6 inches onto the surface of the existing steel deck beyond the damaged area.

a. (Allowance No. 3 4) Contract shall include 650 square feet of sheet metal instal-lation in the Base Bid.

4. (Allowance No. 4 5) Where steel decking is severely damaged or has deteriorated over large areas (greater than 6-inches in any direction), remove the entire existing deck unit and install new specified decking. Lap new deck units over the existing in the same manner as originally installed. Secure to structural framing with specified screws at Steel Deck Institute 36/4 patterns each available framing member and not more than 24 inches on center at side laps using specified side lap screws. At the perimeter, specified deck fasteners shall be applied at spacings not to exceed 6 inches on-center along the parapet framing.

(ALLOWANCE NO. 4 5) CONTRACT SHALL INCLUDE 250 SQUARE FEET OF STEEL DECK

REPLACEMENT IN THE BASE BID.

5. (Allowance No. 5 6) At those locations where side lap screws have not been installed or side lap screws exceed 30-inches on-center, furnish and install new self-tapping sheet metal screws at spacings not to exceed 30-inches on-center. Contractor shall submit technical data on the proposed screws before the start of this phase of the work.

a. (Allowance No. 5 6) Contract shall include the installation of 150 side lap screws in the Base Bid.

6. (Allowance No. 6 7) At those locations where existing welds have broken from the top of the supporting members or have not been installed, furnish and install new screws in accordance with Drawings 3-4/A3.14. Welding is not an acceptable means of attach-ing/re-attaching the deck to the supporting member. Fasteners shall penetrate the struc-tural membrane a minimum of 1-1/2 inches

a. (Allowance No. 7) Contract shall include the installation of 150 deck-to-joist screws in the Base Bid.

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7. Contractor shall include allowances as indicated on the Bid Form in the Base Bid. Con-tract will be increased at unit price rates for unit price work that exceeds allowances.

Contract will be reduced for unused unit price work at the bid unit price rate. Owner re-serves the right to negotiate lump sum modifications to the contract for bulk unit price work.

S. Cost associated with any necessary removals at roof drains to install new roof drains and/or drain sumps shall be included in the Base Bid.

T. Abandoned Penetrations at Metal Roof Decks:

1. At all abandoned roof penetrations, less than 6 inches in diameter, secure a piece of 20

ga. galvanized steel to the existing deck at spacings not to exceed 6 inches on center and located approximately one inch from the edge of the opening. Sheet metal shall be secured to the deck with specified deck screws. The sheet metal shall extend onto the existing deck a minimum of 6 inches.

2. At abandoned openings, larger than 12 inches on any side but less than 24 inches, fur-nish and install new steel decking which matches the existing and install so that the ends and sides extend past the edges of the existing deck a minimum of 12 inches. The ends of the new steel deck shall extend over a structural member. Secure the new deck to the existing deck with specified deck screws at spacings not to exceed 6 inches on-center located approximately 6 inches from the opening on all sides. The ends of the new deck shall be secured to the existing structural supports using specified deck screws at Steel Deck Institute 36/7 patterns. Install specified side lap screws along the side laps at spacings not to exceed 30 inches on-center.

3. At abandoned openings, larger than 24 inches on any side, furnish and install new steel decking which matches the existing and install so that the new deck unit is supported by a minimum of three structural supports. Ensure that the new deck section is “nested” tightly in the existing, which may require the removal of existing deck fasteners or grind-ing down existing welds. Secure the new deck to each structural member with specified deck screws at Steel Deck Institute 36/7 patterns. At side laps, furnish and install a min-imum of 3 specified side lap screws between each structural member.

U. Cost associated with the removal of any abandoned equipment as identified on plans and/or on the roof shall be included in the Base Bid.

V. Remove all existing pipe portals or pitch pans. Furnish and install new pipe vaults or chases at gas, power and control conduit entry onto the roof from the interior space. Pipe vault installa-tion is not required where field wrap membrane base flashings may be installed and warrantied by the roof system manufacturer. There should be no substitution for the “vault” type roof hous-ing, however alternate manufacturer’s may be approved prior to bid.

END OF SECTION 07 01 50

01 DEC 2025

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SECTION 21 22 00

CLEAN-AGENT FIRE-EXTINGUISHING SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 APPLICABLE STANDARDS AND PUBLICATIONS

A. The design, installation, testing and maintenance of the Clean Agent Extinguishing System shall be in accordance with the applicable requirements set forth in the latest edition of the following codes, standards, and third party approval agencies:

1. NFPA 2001: Standard on Clean Agent Fire Extinguishing Systems

2. NFPA 70: National Electrical Code

3. NFPA 72: National Fire Alarm and Signaling Code

4. Factory Mutual (FM)

5. Underwriters Laboratories (UL)

6. Requirements of the local Authority Having Jurisdiction (AHJ)

1.3 SUMMARY

A. Section Includes:

1. Piping and piping specialties.

2. Extinguishing-agent containers.

3. Extinguishing agent.

4. Detection and alarm devices.

5. Releasing control panel.

6. Accessories.

7. Connection devices for and wiring between system components.

8. Connection devices for power and integration into building's fire-alarm system.

B. Section Excludes:

1. Power supply (120/240 VAC) to system control panel.

2. Interface (conduit and wiring) to HVAC units, dampers, electric power supplies, relays, or shunt-trip breakers.

3. Interface (conduit and wiring) to local/remote fire alarm system

4. Connection to listed central station fire alarm system.

5. Room sealing, other than penetrations made by the suppression system contractor during system installation. Suppression system contractor shall coordinate room sealing requirements with project’s General contractor and all sub-contractors.

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1.4 DEFINITIONS

A. ATS: Acceptance Testing Specifications.

B. EPO: Emergency Power Off.

C. AHJ: Authority Having Jurisdiction.

1.5 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

B. Shop Drawings: For clean-agent fire-extinguishing system signed and sealed by a qualified professional engineer.

1. Prepared by persons with the following qualifications:

a. Trained and certified by the manufacturer of the Clean Agent Suppression system.

b. NICET certified Fire-Alarm Technician, Level III minimum.

2. Comply with recommendations in the “Working Plans” Section of the “System Design” Chapter in NFPA 2001.

3. Comply with the recommendations in the “Documentation” Section of the “Fundamentals of Fire Alarm Systems” Chapter in NFPA 72.

4. Include plans, elevations, sections, details, and attachments to other work.

5. Include design calculations: Enclosure volume, agent quantity, backup battery, voltage drop, detector spacing, etc.

6. Detail equipment assemblies and indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

7. Include plans to indicate mounting location of field devices, including size and routing of cable and conduits.

8. Submittals shall be signed and sealed by the Contractor’s qualified professional engineer prior to submitting them to the Authority Having Jurisdiction.

9. Submittals shall be approved by the Authority Having Jurisdiction prior to submitting them to Architect.

A. Delegated-Design Submittal: For clean-agent fire-extinguishing system signed and sealed by a qualified professional engineer.

1. Indicate compliance with performance requirements and design criteria, including analysis data.

2. Include design calculations for selecting the spacing and sensitivity of detection devices, complying with NFPA 72.

3. Include design calculations for weight, volume, and concentration of extinguishing agent required for each hazard area.

4. Include design calculations for room enclosure pressure relief/venting as required to avoid structural damage to the hazard enclosure, equipment, or building.

5. Indicate the Following on Reflected Ceiling Plans:

a. Ceiling penetrations and ceiling-mounted items.

b. Extinguishing-agent containers, piping, discharge nozzles, photoelectric smoke detectors, and accessories.

c. Method of attaching hangers to building structure.

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d. Other ceiling-mounted items including light fixtures, diffusers, grilles, speakers, sprinklers, and access panels.

6. Indicate the Following on Occupied Work Area Plans:

a. Controls and alarms.

b. Extinguishing-agent containers, piping and discharge nozzles if mounted in space, detectors, and accessories.

c. Equipment and furnishings.

7. Indicate the Following on Access Floor Space Plans:

a. Extinguishing-agent containers, piping and discharge nozzles, detectors, and accessories.

b. Method of supporting piping.

8. Indicate the Following on Ceiling Plans:

a. Extinguishing-agent containers, piping and discharge nozzles, detectors, and accessories.

b. Method of supporting piping.

c. Other equipment located in the ceiling space that is being protected including sprinkler piping, HVAC equipment, raceways, or conduit.

1.6 INFORMATIONAL SUBMITTALS

A. Coordination Drawings: Sprinkler systems, drawn to scale, on which the following items are shown and coordinated with each other, using input from Installers of the items involved:

1. Domestic water piping.

2. Items Penetrating Finished Ceiling Include the Following:

a. Lighting fixtures.

b. Air outlets and inlets.

c. Occupancy sensors

d. Etc.

B. Design Data:

1. Permit Approved Drawings: Working plans, prepared according to NFPA 2001, that have been approved by authorities having jurisdiction. Include design calculations.

C. Field quality-control reports.

D. Installer Qualifications:

1. Authorized distributor of the system manufacturer. Shall maintain an inventory of replacement parts.

2. Trained by the system manufacturer to design, install, test, and maintain the clean agent extinguishing system.

3. Provide proof of emergency service available on a twenty-four hour, seven-days-a-week basis.

4. Maintain or have access to a recharging station capable of recharging the largest suppression system within 72 hours after a discharge.

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5. Minimum five (5) years’ experience in the design, installation, and testing of clean-agent fire extinguishing systems. A list of systems of similar nature and scope shall be provided upon request.

6. Shall employ a NICET Level III certified special hazard designer, who will be responsible for this project.

1.7 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For special agent system to include in emergency, operation, and maintenance manuals.

B. Deliver copies to Authorities Having Jurisdiction and include the following:

1. Comply with the “Records” Section of the “Inspections, Testing and Maintenance” Chapter of NFPA 72.

2. Provide “Record of Completion Documents” according to NFPA 72 article “Permanent Records” in the “Records” section of the “Inspection, Testing and Maintenance” Chapter in NFPA 72.

3. Record copy of site-specific software.

4. Provide “Maintenance, Inspection and Testing Records” according to NFPA 72 article of the same name and include the following:

a. Frequency of testing of installed components.

b. Frequency of inspection of installed components.

c. Requirements and recommendations related to results of maintenance.

d. Manufacturer’s user training manuals.

5. Manufacturer’s required maintenance related to system warranty requirements.

6. Abbreviated operating instructions for mounting at the control panel.

7. Room enclosure pressurization test (Door Fan test) results.

C. As-built Drawings: Indicate actual installation configuration at time of project completion including all equipment locations, pipe routing, conduit routing, room configurations, etc.

1.8 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. Deliver extra materials to Owner.

1. Detection Devices: Not less than 20 percent of amount of each type installed.

2. Container Valves: Not less than 10 percent of amount of each size and type installed.

3. Nozzles: Not less than 20 percent of amount of each type installed.

4. Extinguishing Agent: Not less than 100 percent of amount installed in largest hazard area. Include pressure-rated containers with valves.

1.9 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

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B. FM Global Compliance: Provide components that are FM Approved and that are listed in FM Global's "Approval Guide."

C. UL Compliance: Provide equipment listed in UL's "Fire Protection Equipment Directory."

D. All devices, components, and equipment shall be new, standard products of the manufacturer’s latest design and suitable to perform the functions intended. The name of the manufacturer, part number, and serial number shall appear on all major components.

E. Locks for all cabinets shall be keyed alike.

PART 2 - PRODUCTS

2.1 CLEAN-AGENT SYSTEMS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

1. Ansul Incorporated; Tyco International.

2. Chemetron Fire Systems.

3. Fike Corporation.

4. Siemens Building Technologies, Inc.

B. Description: Clean-agent fire-extinguishing system shall be an engineered system for total flooding of the hazard area including the room cavity above the ceiling, below the ceiling, and below the raised floor. System includes separate zones above and below the ceiling and beneath the raised floor. If smoke is detected below the raised floor, extinguishing agent shall be discharged in the underfloor zone only. If smoke is detected below the ceiling, extinguishing agent shall be discharged in zones above and below the ceiling and below the floor. If smoke is detected above the ceiling, extinguishing agent shall be discharged in the zone above the ceiling only.

C. Delegated Design: Design clean-agent fire-extinguishing system and obtain approval from authorities having jurisdiction. Design system for Class A, B, and C fires as appropriate for areas being protected, and include safety factor. Use clean agent indicated and in concentration suitable for normally occupied areas.

D. Performance Requirements: Discharge HFC 227ea within 10 seconds and maintain 7.1 percent concentration by volume at 70 deg F (21 deg C) for 10-minute holding time in hazard areas.

1. HFC 227ea concentration in hazard areas greater than 9.0 percent immediately after discharge or less than 5.8 percent throughout holding time will not be…