12-18297 DTMB Addendum 2 - 2024-12-12.pdf

`DTMB-0414 (Rev 12/17)

DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND BUDGET

State Facilities Administration Design and Construction Division

CONSTRUCTION PRE-BID ADDENDUM NO. 2

This form identifies an Addendum to Bidding Documents, and incorporates interpretations or clarifications, modifications, acceptance of proposed “or equal” materials, and other information into the Bidding Documents. Addenda will be numbered by the Professional and distributed through www.michigan.gov/SIGMAVSS as an attachment.

TO:

ALL BIDDERS

DATE ISSUED

12/12/2024

PROJECT NAME

Heart of the Great Turtle Island / Gchi Mshiikenh Deh Minising

FILE NUMBER

751/18297.ABG

PROFESSIONAL

Beckett & Raeder, Inc.

PROJECT DIRECTOR

Alan Goschka

BID OPENING DATE:

12/18/2024 at 2:00 p.m.

ADDENDUM ITEMS:

Specification Items:

1. Section 00010 Table of Contents (not re-issued) – Section 10 22 26 has been added to the Table of Contents.

2. Section 00300 Bid Summary (not re-issued) – Article 7 Schedule of Change Order Prices Item 9: Bidders shall disregard Item 9

Powwow Ground Shade Structures by recording “N/A” in both the Unit Price and Item Bid Price columns as a unit price is not being sought for this item..

3. Section 05 73 00 Metal Railings – Wire Mesh (not re-issued) – For clarification, the exterior railing system shall be provided with primer and finish powder coating in color to be selected by Architect from supplier’s standard colors.

4. Section 10 22 26 Operable Walls (issued) – This specification section was omitted and is now included in the specifications. See attached.

Drawing Items:

1. Sheet S1.0 LC First Floor Structural Plan (not re-issued) – Add all labor and material necessary for the complete installation of three

(3) 1 ¾” x 12” LVLs with three (3) 2x6s posts at each end for support of the operable wall at the Learning / Indoor Programming and Exhibit Space.

Other:

1. Gas / Electrical Service Allowance Amount of $50,000. The following clarification / information is given as it relates to Contractor efforts required in relation to the electrical service:

a. The allowance amount in Article 6 of Section 00300 Bid Summary is intended to cover the utility companies’ charges to establish respective service, including Cloverland’s costs to provide new electrical transformer(s)/cabinet(s)/meter(s) and to pull wire in conduit provided and installed by the Contractor.

b. Bidders shall include in the base bid all labor and material costs associated with furnishing and installing 1,250 linear feet of 4” diameter SLC40PVC for primary wire, installed in a 36” deep excavation. Excavation shall be backfilled, compacted, and restored to match existing condition. Approximate routing of contractor-installed conduit is depicted on the Cloverland Electrical Sketch (attached; new lines in blue dash) and is intended to be routed along previously cleared paths.

End of Pre-Bid Addendum No. 2

ACKNOWLEDGEMENT: This Addendum must be acknowledged by the Bidder in the space provided in the Bid Summary and Bid Form. Failing to acknowledge Addenda may be cause for the Bid to be rejected. Addenda will become part of the Contract Documents.

PROFESSIONAL: Christy D. Summers, PLA, ASLA, LEED AP, Beckett & Raeder, Inc. DATE: 12/12/2024

APPROVED BY:

Alan Goschka

PROJECT DIRECTOR: DATE 12/12/2024

Michigan Department of Natural Resources File No. 751/18297.ABG Heart of the Great Turtle Island / Gchi Mshiikenh Deh Minising Issued for: Addendum No. 2 December 12, 2024

OPERABLE WALLS 102226- 1

SECTION 102226 – OPERABLE WALLS

1.01 WORK INCLUDED

A. Operable wall system shall be furnished, installed and serviced by wall manufacturer's authorized distributor, in compliance with the architectural drawings and specifications contained herein.

1.02 RELATED WORK

A. Structural Support: Structural support system required for suspending the operable wall shall be designed, installed and pre-punched by others, in accordance with ASTM E 557 and manufacturer's shop drawings.

B. Insulation: Sound insulation and baffles for the plenum area above the track system, under the permanent floor, inside air ducts passing over or around the operable wall, and in permanent walls adjoining the operable wall system shall be by others, in accordance with ASTM E 557.

C. Opening Preparation: Proper and complete preparation of the operable wall system opening shall be by others in accordance with ASTM E 557, and shall include floor leveling; plumbness of adjoining permanent walls;

substrate and/or ceiling tile enclosures for the track system; and the painting and finishing of trim and other materials adjoining the head and jamb areas of the operable wall. Any permanent wall(s) receiving an adjustable or fixed wall jamb will require internal structural blocking in order to secure the jamb to the permanent wall.

Refer to a copy of the shop drawings for additional details.

1.03 SYSTEM DESCRIPTION

A. The operable wall system shall consist of Individual Panels that are top supported by two (2) multi-directional carriers.

B. The operable wall system shall consist of acoustically rated panels tested in accordance with ASTM E 90 and

ASTM E 413 test procedures, and shall have achieved a STC rating as specified herein (see "Acoustical

Performance" article listed under Part 2 – Products).

1.04 QUALITY ASSURANCE

A. The operable wall shall have been tested in an independent acoustical testing laboratory in accordance with

ASTM E 90 and ASTM E 413 test procedures.

B. The operable wall panel construction and finish materials shall consist of Class A rated materials (except as noted, under “Finishes” Part 2 – Products) in accordance with ASTM E 84.

C. The operable wall shall be installed by the manufacturer's authorized distributor in accordance with ASTM E 557.

1.05 REFERENCES

A. ASTM E 90: Laboratory Measurement of Airborne-Sound Transmission Loss of Building Partitions.

B. ASTM E 413: Determination of Sound Transmission Class (STC).

OPERABLE WALLS 102226- 2

C. ASTM E 557: Architectural Application and Installation of Operable Partitions.

D. ASTM E 84: Surface Burning Characteristics of Building Materials.

E. ASTM A 653: Specification for General Requirements for Steel Sheet, Alloy-Coated (Galvannealed) by the Hot

Dip Process.

F. ASTM C 423: Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the

Reverberation Room Method.

G. CCC-W-408A: Federal Specification which applies to Vinyl Coated Wall Coverings.

H. CFFA-W-101-D: Chemical Fabrics and Film Association Quality Standard for Vinyl Coated Fabric Wall

Coverings.

1.06 SUBMITTALS

A. Manufacturer shall provide written technical information and related detail drawings, which demonstrate that the products comply with contract documents for each type of operable partition specified.

B. Manufacturer shall provide detailed engineering drawings featuring track plan, panel elevation, horizontal and vertical details and beam punching template as required.

C. Manufacturer shall provide written test report of the independent acoustical testing laboratory certifying the attainment of the specified STC rating, upon request.

D. Manufacturer shall provide written instructions specifying the proper operation and maintenance of the operable wall system.

E. Manufacturer shall provide a color selector demonstrating the manufacturer's selections of the specified finish material. Samples shall consist of actual swatches of the specified finish material.

1.07 DELIVERY, STORAGE AND HANDLING

A. Panels shall be individually wrapped in a protective plastic covering to keep panels clean during delivery, storage and handling.

B. Panels shall be stored on edge and above the floor on cushioned blocking in a dry and ventilated area, protected from humidity and temperature extremes.

1.08 SEQUENCING / SCHEDULING

A. Beam Punching: Manufacturer shall provide beam punching template drawing detailing the anchor locations for the suspended track system (as required for Drop Rod Mounting), as required for the fabrication and installation of structural overhead support by others.

B. Track Installation: Scheduling of operable wall track installation shall occur after structural overhead support has been properly and completely fabricated and installed by others.

C. Panel Installation: Operable wall panel installation shall occur after fixed wall substrate construction is properly and completely installed by others, as required to protect panels from ongoing adjacent construction.

OPERABLE WALLS 102226- 3

1.09 WARRANTY

A. Manufacturer shall warrant each operable wall panel and its component parts to be free from defects in material and workmanship for a period of five (5) years from the date of delivery to the original purchaser, when installed by an authorized distributor.

2.01 ACCEPTABLE MANUFACTURER

A. Basis of Design - Operable walls shall be Series 2000, Model 2020 Individual Panels / Multi-Directional as manufactured by KWIK-WALL Company.

B. Or approved equal.

2.02 PANEL CONSTRUCTION

A. Panel Dimensions: Standard panel dimension shall be a nominal 3" [76] thick.

B. Panel Frame: Vertical steel frame members shall be minimum 18-gauge galvanneal steel, horizontal top cross member shall be minimum 12-gauge galvanneal steel, which meets or exceeds ASTM A 653 requirements.

Frame shall be all-welded construction with steel corner supports and cross-bracing reinforcements. Panel frame shall be Class A rated fire retardant, non-combustible and non-corrosive in accordance with ASTM E 84.

C. Panel Skins: Panel skins shall be Class A rated (except Wood Veneer and High Pressure Laminate) in accordance with ASTM E 84. Panel skin material shall consist of (select):

1. Optional Steel Skins: consisting of minimum 22-gauge tension-leveled galvanneal steel, pressure laminated to a structural acoustical backer and mechanically-joined to the steel frame to form a rigid, unitized and structural panel.

D. Panel Hinges): Panel hinges shall be architectural grade, full leaf butt hinges. Hinges shall be attached to the steel frame of the panel and reinforced with a steel backer plate.

E. Panel Weight: Maximum panel weight shall be 6.5 – 12.0 lb./ft.2 (32 – 59 kg/m2) depending on STC rating, size and options selected.

2.03 OPERATION

A. Panels shall be top supported by two (2) carriers featuring dual horizontal precision bearings with high strength polymer tires riding on a structural aluminum track.

2.04 STACK ARRANGEMENTS

A. Stack Type: Panel storage configuration shall be (select):

1. Parallel Stack: consisting of panels stacked parallel to the wall’s installed position.

B. Stack Quantity: Panels shall be stored at one (1) or both ends in separate stack areas as required for panel storage.

OPERABLE WALLS 102226- 4

2.05 FINISHES

A. Finish Material Type: Panel finish material shall be Class A (except wood veneer and high pressure laminate) rated in accordance with ASTM E 84, consisting of :

1. Carpet: consisting of acoustically absorbent, non-woven needle punch fibers fused to prevent fraying and unraveling of material weighing 23 oz./lin. yd. (713 g/lin. m). Upgrade Carpet shall achieve a minimum NRC

(Noise Reduction Coefficient) rating of .25 (applied over gypsum substrate) in accordance with ASTM C 423.

2.06 PERIMETER TRIM AND SEALS

A. Vertical Trim and Seals: Panels shall have vertical astragals containing flexible vinyl seals and incorporate reversible tongue-and-groove-type configurations for positive interlocking with adjacent panels. Vertical astragal type shall be (select):

1. Standard Trimless Astragal: consisting of an aluminum extrusion with tongue-and-groove-type vertical astragals. Vertical trim shall not be permitted on the panel faces, resulting in a minimal groove appearance between adjacent panels.

B. Horizontal Top Trim and Seals: Top seals shall consist of flexible vinyl sweep seals installed on both sides of the panel. The seals shall consist of a compressed bulb between two (2) fingers of vinyl. Top seal type shall be;

1. Standard Fixed Top Seals: consisting of continuous-contact flexible vinyl sealing against the bottom flange of the overhead track.

C. Horizontal Bottom Trim and Seals: Bottom seals shall consist of multiple fingers of flexible vinyl for positive contact and sealing with various floor surfaces. Bottom seal type shall be (select):

1. Standard Operable Bottom Seals: consisting of an edge-activated seal using a removable wrench as supplied by manufacturer. Bottom seals shall provide 2" [50.8] of nominal travel.

D. Horizontal and Vertical Panel Trim: All exposed panel trim and hinges shall be of one (1) similar color:

1. Grey.

2.07 CLOSURE SYSTEMS

A. Initial Closure System: The lead panel (the first panel exiting the stack) shall form a seal vertically against a rigid wall surface, as accomplished by (select):

1. Standard Bulb Seal: consisting of continuous-contact, flexible vinyl bulb seals installed along the vertical edge of the lead panel for positive compression against a rigid wall surface.

B. Final Closure System: The final closure panel (the last panel exiting the stack) shall form a seal vertically against a rigid wall surface. The type of final closure panel shall be (select):

1. Standard Expander Panel Closure: consisting of an expander mechanism with a nominal 5" [127] of travel, activated from the face of the panel using a removable wrench as supplied by manufacturer. The Expander

Panel shall be equipped with an adjustable bottom seal (standard) or (optional) operable bottom seal, and a flush pull handle.

OPERABLE WALLS 102226- 5

2.08 ACOUSTICAL PERFORMANCE

A. Certification: The operable wall shall have been tested in an independent acoustical testing laboratory in accordance with ASTM E 90 and ASTM E 413 test procedures.

B. STC Rating: The operable wall acoustical performance rating shall be based on:

1. Standard Acoustical Substrate: with a standard rating of 49 STC.

2.09 PANEL ACCESSORIES

A. Accessories including Pass Doors; Single or Double, Keyed Cylinder Locks, Concealed Door Closures, Room

Viewers, Exit Signs, Dry Marker Writing Surfaces, Recessed Eraser Trays, Vision Lites, Tack Surfaces and

Pocket Doors shall be compatible with other accessories and options, furnished and installed by the operable wall manufacturer as noted on submitted shop drawings.

2.10 TRACK SYSTEMS

A. Track Type: The operable wall track system shall be extruded from structural aluminum alloy, which prohibits deterioration caused by rust or corrosion. The aluminum track shall have a durable anodized clear satin finish, which resists color fading and flaking. The track shall utilize grooves and interlocking steel pins for positive alignment of adjacent track sections. The track joints shall be reinforced overhead by a heavy-duty steel bracket made of hot-rolled, 3/8" [10] thick plate steel. Aluminum track shall include an integral nut slot to accept a hardened steel square nut to facilitate attachment of each steel all-rod and splice brackets to the overhead structural support.

B. Track Size: The track size shall be :

1. Type 850 Multi-Directional Aluminum Track: certified to be capable of supporting up to 850 lb. (386 kg) of total live load weight per panel.

2.11 CARRIER SYSTEMS

A. Carrier Type: Each individual panel shall be top supported by two (2) carriers utilizing a 5/8" [16] diameter pendant bolt. Each carrier shall consist of dual horizontal, permanently lubricated, precision ground steel bearings with high strength polymer tires as required for smooth and quiet operation. .

B. Carrier Size:

1. Type 850 Multi-Directional Carrier: certified to be capable of supporting up to 850 lb. (386 kg) of total live load weight per panel.

OPERABLE WALLS 102226- 6

2.12 SUSPENSION SYSTEMS

A. Mounting Systems: The track shall be supported by:

1. Standard Drop Rod Mount: consisting of adjustable rods of grade 2, 3/8" [10] diameter threaded steel all-rod provided with 3/8" [10] serrated steel nuts.

3.01 INSPECTION

A. Proper and complete preparation of the operable wall system opening shall be by others in accordance with the architectural drawings, manufacturers shop drawings and ASTM E 557. Any deviation of the actual opening from these specifications shall be called to the attention of the architect prior to the installation of the operable wall.

B. Deficiencies in the operable wall opening shall be corrected by others prior to installation of the operable wall.

3.02 INSTALLATION

A. The operable wall system shall be installed by manufacturer’s authorized distributor.

B. The operable wall shall be installed in accordance with manufacturer’s written instructions, shop drawings and

ASTM E 557 installation guidelines.

3.03 ADJUSTING AND CLEANING

A. The operable wall panels and track system shall be adjusted and cleaned in accordance with manufacturers written instructions.

3.04 PROTECTION

A. The operable wall panels shall be stored in the stacked (retracted) position prior to acceptance by the owner's representative.

3.05 DEMONSTRATION

A. The operable wall manufacturer’s authorized distributor shall demonstrate proper operation and explain proper and necessary maintenance requirements of the operable wall system to the owner's representativ

END OF SECTION

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ChristySummers Text Box Addendum No. 2 - Cloverland Electrical Sketch