Weldon - Addendum #4 FINAL.pdf

WELDON AUDITORIUM RENOVATIONS 21-0024

Meadors, Inc. Construction Documents 04/04/2025

ADDENDUM 4 page 1 Weldon Auditorium Renovations 04/04/2025 Meadors, Inc.

ADDENDUM NO. 4

DATE OF ISSUE: April 04th, 2025

Renovation Services for

WELDON AUDITORIUM

Manning, South Carolina Meadors Project No. 21-0024

Clarendon County Project No. ITB 2024-014

PREPARED BY:

ARCHITECT:

Meadors, Inc.

2811 Azalea Drive Charleston SC, 29405

(843) 723-8585

TO ALL OFFERORS: This Addendum modifies the Proposal Documents only in the manner and to the extent stated herein and shown on any accompanying drawings and will become a part of the Proposal Documents. Except as specified or otherwise indicated by this Addendum, all work shall be in accordance with the basic requirements of the Proposal Documents.

This Addendum consists of TWO (2) pages, the following enclosures, and addresses the questions received to date:

I. ENCLOSURES:

1. Specification Section “055000 Metal Fabrications”

2. Substitution Request Form

II. GENERAL INFORMATION / CLARIFICATIONS:

1. ITB General Questions

a. Question: Can you please verify the Bid date for Weldon Auditorium?

i. Response: The project schedule has been shifted back by one week from the original schedule. Bids are now due Tuesday, April 15, 2025 by 2:00 p.m.

Please see the updated dates on the schedule in the last Addendum issued on 03/28/2025 as well as the full updated schedule listed below.

b. Question: Will we be responsible for getting the tonnage for mini splits 1,3,4,5?

i. Response: Contractor to verify tonnage for mini-split units CU-1, CU-3, CU-4, CU-5 and replace with new equally compliant units.

c. Question: Will there be storage space there to house the equipment to be removed and put back?

i. Response: Contractor is responsible for providing storage spaces sized, furnished, and equipped to accommodate materials and equipment for construction operations. Please review Specification Section 015000 “Temporary Facilities and Controls” within the solicitation documents issued on 03/03/2025.

d. Question: Will the platforms, stands, or curbs be left in place for these unit reinstalls?

i. Response: If existing roof rails are in good condition, meet current seismic requirements, and will work with proposed roof pitches, they are to be retained.

WELDON AUDITORIUM RENOVATIONS 21-0024

Meadors, Inc. Construction Documents 04/04/2025

ADDENDUM 4 page 2 Weldon Auditorium Renovations 04/04/2025 Meadors, Inc.

If not, they will need to be replaced or adapted to meet seismic and roofing requirements.

e. Question: Is the roof work going to be in phases? Consideration for crane usage must be figured.

i. Response: Weldon Auditorium is a functioning facility that requires all roof work to proceed in a scheduled manner. During the reroofing campaign, water cannot enter the facility and ruin finished spaces below. It is recommended that any roofing removed should be replaced or dried in on the same day. It is the contractor’s responsibility to schedule any crane usage on site to fit within the construction schedule.

f. Question: Is there current controls/EMS system in place? If yes, we need point of contact.

i. Response: There is no EMS system in place for this project.

g. Question: At Mini-Splits, will the existing roof rails be reused?

i. Response: If existing roof rails are in good condition, meet current seismic requirements, and will work with proposed roof pitches, they are to be retained.

If not, they will need to be replaced or adapted to meet seismic and roofing requirements.

h. Question: Will economizers be required on any RTHP?

i. Response: Economizers are not required for this project.

i. Question: A substitution has been requested for metal ladder manufactures?

i. Response: Please see the attached Specification Section “055000 Metal

Fabrications” for the revised statements.

III. CHANGES TO SPECIFICATIONS:

1. Specification Section “055000 Metal Fabrications”

a. Subparagraph 2.7.B

IV. CHANGES TO DRAWINGS:

1. None

V. PROJECT SCHEDULE:

1. Monday, March 3, 2025: Bidding period begins

2. Tuesday, March 18, 2025: Pre-bid meeting on site at 10:00 a.m.

3. Tuesday, April 01, 2025: Weldon site is available between 10:00 a.m. – 2:00 p.m.

4. Wednesday, April 02, 2025: Weldon site is available between 10:00 a.m. – 2:00 p.m.

5. Monday, April 07, 2025: Deadline for questions by 1:00 p.m.

6. Tuesday, April 15, 2025: Bid due by 2:00 p.m.

7. Monday, April 28, 2025: Bid accepted (tentatively)

8. Construction Start: June, 2025

VI. PREVIOUS ADDENDA:

1. Addendum No. 1: Issued March 14, 2025

2. Addendum No. 2: Issued March 21, 2025

3. Addendum No. 3: Issued March 28, 2025

END OF ADDENDUM

MADE IN USA

Aluminum Ladders

Custom O’Keeffe’s ladder at San Francisco International Airport

MADE IN USA

© O’Keeffe’s, Inc. June 2021

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O’Keeffe’s ladders are made of 6061-T6 alloy rungs and 6063-T5 alloy extrusions. Our rungs are capable of withstanding 1,500 lbs. of load.

Here are a few reasons to consider aluminum ladders over steel ladders:

Aluminum is resistant to rust and corrosion. Steel ladders are either galvanized or made with stainless steel in order to minimize rust or corrosion. Aluminum ladders naturally and economically resist rust and corrosion.

O’Keeffe’s Aluminum Ladder Steel Ladder

Aluminum is environmentally friendly. Our aluminum extrusions are made with recycled content. Steel ladders can rust over time, and eventually have to be replaced, resulting to greater environmental impact.

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years

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O’Keeffe’s Inc. has over 75 years of custom design and engineering and experience. Our dedicated and knowledgeable staff can assist you with any fixed access, ship, cage or custom ladder that you need. We also manufacture platforms, catwalks, railings, and much more.

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O’Keeffe’s aluminum ladders have deeply serrated square rungs for maximum foot traction and safety. Steel ladders typically have round rungs and are not serrated, making it less stable for the person trying to climb it.

O’Keeffe’s Square Rungs Steel Round Rungs

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WELDON AUDITORIUM 21-0024

Meadors, Inc. Construction Documents REVISED 04/04/2025 01/31/2025

METAL FABRICATIONS 055000 - 1

Weldon Auditorium REVISED 04/04/2025 01/31/2025 Meadors, Inc.

SECTION 055000 - METAL FABRICATIONS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Miscellaneous framing and supports.

2. Metal ladders.

B. Products furnished, but not installed, under this Section include the following:

1. Loose steel lintels.

C. Related Requirements:

1. Section 040120.63 "Brick Masonry Repair" for installing loose lintels, anchor bolts, and other items built into unit masonry.

1.2 COORDINATION

A. Coordinate installation of metal fabrications that are anchored to or that receive other work.

Furnish setting drawings, templates, and directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items with integral anchors, that are to be embedded in concrete or masonry. Deliver such items to Project site in time for installation.

1.3 ACTION SUBMITTALS

A. Product Data:

1. Fasteners.

2. Manufactured metal ladders.

B. Shop Drawings: Show fabrication and installation details. Include plans, elevations, sections, and details of metal fabrications and their connections. Show anchorage and accessory items. Provide Shop Drawings for the following:

1. Miscellaneous framing and supports for applications where framing and supports are not specified in other Sections.

2. Metal ladders.

3. Loose steel lintels.

C. Delegated Design Submittals: For ladders, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

METAL FABRICATIONS 055000 - 2

Weldon Auditorium REVISED 04/04/2025 01/31/2025 Meadors, Inc.

1.4 INFORMATIONAL SUBMITTALS

A. Welding certificates.

B. Paint Compatibility Certificates: From manufacturers of topcoats applied over shop primers, certifying that shop primers are compatible with topcoats.

1.5 QUALITY ASSURANCE

A. Welding Qualifications: Qualify procedures and personnel in accordance with the following welding codes:

1. AWS D1.1/D1.1M, "Structural Welding Code - Steel."

2. AWS D1.2/D1.2M, "Structural Welding Code - Aluminum."

3. AWS D1.6/D1.6M, "Structural Welding Code - Stainless Steel."

1.6 FIELD CONDITIONS

A. Field Measurements: Verify actual locations of walls, floor slabs, decks, and other construction contiguous with metal fabrications by field measurements before fabrication.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Structural Performance of Aluminum Ladders: Ladders are to withstand the effects of loads and stresses within limits and under conditions specified in ANSI/ASC A14.3.

2.2 METALS

A. Metal Surfaces, General: Provide materials with smooth, flat surfaces unless otherwise indicated.

For metal fabrications exposed to view in the completed Work, provide materials without seam marks, roller marks, rolled trade names, or blemishes.

2.3 FASTENERS

A. General: Unless otherwise indicated, provide Type 304 stainless steel fasteners for exterior use and zinc-plated fasteners with coating complying with ASTM B633 or ASTM F1941/F1941M, Class Fe/Zn 5, at exterior walls. Select fasteners for type, grade, and class required.

1. Provide stainless steel fasteners for fastening aluminum

B. Stainless Steel Bolts and Nuts: Regular hexagon-head annealed stainless steel bolts, ASTM F593;

with hex nuts, ASTM F594; and, where indicated, flat washers; Alloy Group 1

METAL FABRICATIONS 055000 - 3

Weldon Auditorium REVISED 04/04/2025 01/31/2025 Meadors, Inc.

C. Anchor Bolts: ASTM F1554, Grade 36, of dimensions indicated; with nuts, ASTM A563; and, where indicated, flat washers.

1. Hot-dip galvanize or provide mechanically deposited, zinc coating where item being fastened is indicated to be galvanized.

2.4 MISCELLANEOUS MATERIALS

A. Galvanizing Repair Paint: High-zinc-dust-content paint complying with SSPC-Paint 20 and compatible with paints specified to be used over it.

2.5 FABRICATION, GENERAL

A. Shop Assembly: Preassemble items in the shop to greatest extent possible. Disassemble units only as necessary for shipping and handling limitations. Use connections that maintain structural value of joined pieces. Clearly mark units for reassembly and coordinated installation.

B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch unless otherwise indicated. Remove sharp or rough areas on exposed surfaces.

C. Weld corners and seams continuously to comply with the following:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after

D. Fabricate seams and other connections that are exposed to weather in a manner to exclude water.

Provide weep holes where water may accumulate.

E. Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware, screws, and similar items.

F. Provide for anchorage of type indicated; coordinate with supporting structure. Space anchoring devices to secure metal fabrications rigidly in place and to support indicated loads.

2.6 MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Provide steel framing and supports not specified in other Sections as needed to complete the Work.

B. Fabricate units from steel shapes, plates, and bars of welded construction unless otherwise indicated. Fabricate to sizes, shapes, and profiles indicated and as necessary to receive adjacent construction.

METAL FABRICATIONS 055000 - 4

Weldon Auditorium REVISED 04/04/2025 01/31/2025 Meadors, Inc.

1. Fabricate units from slotted channel framing where indicated.

2. Furnish inserts for units installed after concrete is placed.

C. Galvanize miscellaneous framing and supports where indicated.

2.7 METAL LADDERS

A. General:

1. Comply with ANSI A14.3

B. Aluminum Ladders:

1. Manufacturers: Subject to compliance with requirements, provide products by the following:

a. Precision Ladders, LLC.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following or approved equal:

a. Precision Ladders, LLC.

b. O’Keeffe’s Inc.

2. Source Limitations: Obtain aluminum ladders from single source from single manufacturer.

3. Support each ladder with welded or bolted aluminum brackets.

4. Provide minimum 72-inch- high, hinged security door with padlock hasp at foot of ladder to prevent unauthorized ladder use.

1.2 LOOSE STEEL LINTELS

A. Fabricate loose steel lintels from steel angles and shapes of size indicated for openings and recesses in masonry walls and partitions at locations indicated. Fabricate in single lengths for each opening unless otherwise indicated. Weld adjoining members together to form a single unit where indicated.

B. Size loose lintels to provide bearing length at each side of openings equal to one-twelfth of clear span, but not less than 8 inches unless otherwise indicated.

C. Galvanize loose steel lintels located in exterior walls.

1.3 GENERAL FINISH REQUIREMENTS

A. Finish metal fabrications after assembly.

B. Finish exposed surfaces to remove tool and die marks and stretch lines, and to blend into surrounding surface.

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METAL FABRICATIONS 055000 - 5

Weldon Auditorium REVISED 04/04/2025 01/31/2025 Meadors, Inc.

1.4 STEEL AND IRON FINISHES

A. Galvanizing: Hot-dip galvanize items as indicated to comply with ASTM A153/A153M for steel and iron hardware and with ASTM A123/A123M for other steel and iron products.

1. Do not quench or apply post galvanizing treatments that might interfere with paint adhesion.

1.5 ALUMINUM FINISHES

A. As-Fabricated Finish: AA-M12.

PART 2 - EXECUTION

2.1 INSTALLATION, GENERAL

A. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, alignment, and elevation; with edges and surfaces level, plumb, true, and free of rack; and measured from established lines and levels.

B. Fit exposed connections accurately together to form hairline joints. Weld connections that are not to be left as exposed joints but cannot be shop welded because of shipping size limitations. Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication and are for bolted or screwed field connections.

C. Field Welding: Comply with the following requirements:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after finishing and contour of welded surface matches that of adjacent surface.

D. Fastening to In-Place Construction: Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction. Provide threaded fasteners for use with concrete and masonry inserts, toggle bolts, through bolts, lag screws, wood screws, and other connectors.

E. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construction.

F. Corrosion Protection: Coat concealed surfaces of aluminum that come into contact with grout, concrete, masonry, wood, or dissimilar metals with the following:

1. Cast Aluminum: Heavy coat of bituminous paint.

2. Extruded Aluminum: Two coats of clear lacquer.

METAL FABRICATIONS 055000 - 6

Weldon Auditorium REVISED 04/04/2025 01/31/2025 Meadors, Inc.

2.2 INSTALLATION OF MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Install framing and supports to comply with requirements of items being supported, including manufacturers' written instructions and requirements indicated on Shop Drawings.

2.3 INSTALLATION OF METAL LADDERS

A. Secure ladders to adjacent construction with the clip angles attached to the stringer.

B. Install brackets as required for securing of ladders welded or bolted to structural steel or built into masonry or concrete.

2.4 REPAIRS

A. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply with ASTM A780/A780M.

END OF SECTION 055000