Addendum 3_LI-BL-2023-001_D006332, D006645-47.pdf

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Attached to
Renovate Regional Administration Building - Exterior/Electrical Infrastructure Upgrades (Phase 2) at HQ Administration Building
Solicitation number
2138584
Issued by
Suffolk County, New York

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Addendum 3 Summary - Belmont Lake State Park Regional Administration Building Phase 2 Renovation

Addendum 3, issued October 1, 2026, by the New York State Office of Parks, Recreation and Historic Preservation for the renovation of the Regional Administration Building Phase 2 at Belmont Lake State Park, documents revisions and clarifications to bid documents for four separate trade contracts: General Construction (D006632), Electrical (D006645), Mechanical (D006646), and Plumbing (D006647). The addendum addresses Requests for Information (RFIs) from four bidding firms—Interphase, Sajiun, Stalco, and Esposito—and provides technical clarifications regarding flooring scope, material specifications, architectural finishes, and landscaping. Key revisions include removal of specification sections 077173 and 096516, addition of sections 042000 (Unit Masonry), 090160 (Refinishing of Wood Plank and Strip Flooring), and 096500 (Resilient Tile Flooring), and modifications to drawing sheets C-101 (planting schedule), AD-111 (existing flooring removal scope), A-111 (new flooring extent and signage schedule), and A-701 (finish schedule with Room 114C addition and RSF material revision). RFI responses clarify that resilient flooring in Corridor 118 is limited to new areas only, that RSF flooring has been revised from sheet flooring to luxury vinyl tile (LVT), that self-leveling epoxy flooring is prohibited in favor of trowel-applied leveling underlayment, that 14 new Ilex glabra plants are required per the updated plant schedule, and that existing flooring removal to subfloor is required in specified rooms receiving new resilient sheet flooring. All bidders must acknowledge receipt of Addendum 3 in their bid submissions to avoid disqualification.

The addendum includes comprehensive technical specifications for Unit Masonry (Section 042000), requiring concrete block construction with specified Portland cement, lightweight expanded shale aggregates, and ASTM-compliant materials, along with detailed installation procedures, control joint placement, and quality assurance tolerances. Specifications for Refinishing of Wood Plank and Strip Flooring (Section 090160) require 3' x 3' mock-ups for approval, matching existing wood species and dimensions, and application of custom stains (BONA Chroma) with clear coat finishes (BONA Traffic HD Raw, 3 coats recommended for commercial use). Resilient Tile Flooring specifications (Section 096500) call for Mohawk Group Neutral Timber 7" x 48" luxury vinyl tile in Cocoa Oak color, Armstrong 4-inch high integrated wall base with matte finish, proper substrate preparation including moisture testing per ASTM standards, and 48-hour acclimation periods before and after installation. The Plant Schedule (C-101) identifies required landscape materials including one 3-inch caliper Sugar Maple, one 3-inch caliper Flowering Dogwood, 21 Inkberry Holly shrubs, and 25 Rhodora shrubs at specified spacing. The addendum establishes that all RFI responses, technical specifications, drawing revisions, and new specification sections take precedence over original bid documents and shall be incorporated into all bids, with acknowledgment of addendum number and date required on bid forms.

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OPRHP-Pre-Bid Addendum Version 1, 8/28/2026 Page 1 of 2

ADDENDUM

PROJECT: Renovation of Regional Administration Building Phase 2 – Exterior/Electrical Infrastructure

Upgrades – LI-BL-2023-001

Belmont Lake State Park

General Construction Contract D006632

Mechanical Contract D006646

Electrical Contract D006645

Plumbing Contract D006647

ADDENDUM NO: 3

ISSUE DATE: 10/01/2026

ALL BIDDERS SUBMITTING A BID FOR THE ABOVE-NAMED PROJECT SHALL TAKE NOTE OF THE FOLLOWING CHANGES, ADDITIONS, INTERPRETATIONS, CLARIFICATIONS, ETC. IN CONNECTION WITH THE DRAWINGS AND SPECIFICATIONS

AND OTHER BID DOCUMENTS. THE FOLLOWING INSTRUCTIONS HAVE PRECEDENCE OVER ANYTHING CONTRARILY

SHOWN ON THE DRAWINGS OR DESCRIBED IN THE SPECIFICATION DOCUMENTS, AND ALL SUCH INFORMATION SHALL

BE TAKEN INTO CONSIDERATION AND BE INCLUDED IN THE BIDDERS BID AMOUNT. ACKNOWLEDGE RECEIPT OF THIS

ADDENDUM BY INSERTING ITS NUMBER AND DATE IN THE SPACE PROVIDED IN THE BID FORM. FAILURE TO DO SO

MAY SUBJECT BIDDER TO DISQUALIFICATION.

SUMMARY OF ADDENDUM ITEMS

RFIs: Responses to RFI questions from Interphase, Sajiun, Stalco, and Esposito

• See attached RFI forms

Technical Specification TOC: Removed: 077173, 096516, Added: 042000, 090160, 096500

• Added Section 042000 Unit Masonry

• Added Section 090160 Refinishing of Wood Plank and Strip Flooring

• Added Section 096500 Resilient Tile Flooring

Sheet C-101: Planting schedule and additional plant symbols have been added to the drawing for clarification.

Sheet AD-111: Revised to clarify scope of existing flooring removal.

Sheet A-111: Revised to clarify extent of new flooring. Signage schedule added to A-111.

Sheet A-701: Room 114C added to finish schedule. RSF material revised in schedule.

List of Attachments:

A. LI-BL-2023-001 E-D006645 - Interphase.pdf

B. LI-BL-2023-001 E-D006645 - Sajiun.pdf

C. LI-BL-2023-001 GC-D006632 - Stalco.pdf

D. LI-BL-2023-001 GC-D006632 - Esposito.pdf

E. LI-BL-2023-001 GC-D006632 - Preferred.pdf

F. Plant Schedule

G. 000010 Table of Contents_Addendum 3

H. 042000 Unit Masonry

I. 090160 Refinishing of Wood Plank and Strip Flooring

J. 096500 Resilient Tile Flooring

K. Sheet C-101

L. Sheet AD-111

M. Sheet A-111

N. Sheet A-701

06/2025 OPR 103

NYS Office of Parks, Recreation and Historic Preservation Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

ADDENDUM 3

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

1. Corridor 118 resilient flooring installation is limited to the new area of corridor 118 only. The existing flooring in the undisturbed corridor areas is to remain. Drawing A-111 will be revised to visually clarify the extent of new flooring.

2.RSF flooring is being revised to LVT flooring. A revised specification section with project and installation information will be provided.

3.Self-leveling is not permitted per the specified epoxy flooring manufacturer. Leveling underlayment for specified epoxy flooring is trowel applied, and will be as needed to achieve floor level tolerance per specified epoxy flooring manufacturer. Thickness must fall between manufacturer's minimum and maximum ranges. Refer to manufacturer's installation instructions.

4.1st floor area shown in 1/A-111 is wood framed above crawl space below, not slab on grade.

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

5. Flooring and base to match Police Foyer 114B.

6. Locations receiving resilient sheet flooring per spec section 096516 are to receive wood base molding to match existing adjacent moldings per finish schedule(s).

Integral cove as part of the epoxy floor system must be included where the epoxy floor system is installed. Refer to finish schedule for basement (base bid) room 013A, and alternates, rooms 115A, 136, and any other rooms indicated on A-701. It is also shown in details 10/A-551 and 9/A-551.

7.Resilient base: Armstrong color integrated wall base with matte finish, 4" height, group 1 - solid, style B

- cove, color as approved by owner/architect from manufacturer's full line. Or approved Equal.

Specifications will be revised to include product and installation information.

8. Floor refinishing spec will be added to the project to address scope.

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

The trees on the survey have “T##” next to them. The “##” is the tree diameter.

As for the brush or hedges there is no additional information on size.

The proposed planting to be per the schedule attached. C-101 will be revised with added plant schedule. The Existing Ilex Opaca located on the southeast corner of the building is to remain.

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

D006632, D006645-47 Preferred Construction Inc estimating@prefconst.com

1 9.30.26

A700, No information is provided about acoustic insulation in some partition types like A4A, A4A-A, P4A etc. Please clarify if acoustic insulation is required in these partition types or not?

Refer to dwg. A700

Acoustic information is included in spec section 092900. 2.4-A

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

D006632, D006645-47 Preferred Construction Inc estimating@prefconst.com

2 9.30.26 Refer to dwg. A701

Finish Schedule calls wall paint in rooms.

Please clarify whether existing walls of these rooms are also to be painted or not?

ADDENDUM 3

All walls, existing and new, in rooms listed in the finish scheduled on A-701 are to be painted.

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

D006632, D006645-47 Preferred Construction Inc estimating@prefconst.com

3 9.30.26 Refer to dwg. C101

"Ilex glabra evergreen hedge" is tagged alongside existing Ilex Opaca;

however, the number of plants is not indicated.

An existing hedge row is also shown at this location.

Please clarify the required quantity of new Ilex glabra plants and whether the existing hedge is to remain or be removed

14 plants to be provided per updated sheet C-101 as part of addendum 3

Long Island Region

REQUEST FOR INFORMATION (RFI)

OPR-103

Project: LI-BL-2023-001 Renovate Regional Administration Building Exterior/Electrical Infrastructure Upgrades (Phase 2) Contract Number:

Date:

Drawing No:

Request From:

Reply Email Address:

Email Request to: LIEngineeringContracts@parks.ny.gov Request Number:

Spec Section No.:

Remarks:

Question:

Answer:

D006632, D006645-47 Preferred Construction Inc estimating@prefconst.com

6 9.30.26 Refer to dwg. A701

RFI: Refer to dwg. A701, Finish Schedule indicates resilient sheet flooring in room 113, 114, 114A, 114B, 114;

however, the removal of existing flooring is not shown on the demolition plans.

Please clarify if removal of existing flooring is required in these rooms.

ADDENDUM 3

Removal of existing flooring down to sub floor is required in the rooms receiving RSF. AD-111, A-111, and A-701 have been revised with flooring updates. RSF flooring has been revised from sheet flooring to LVT flooring, with accompanying specifications revision(s). Flooring questions are also answered in additional RFI responses. Refer to other responses regarding flooring for full scope of work clarification and update.

NYS OPRHP – LONG ISLAND DISTRICT PHASE 2 – EXTERIOR ELECTRICAL INFRASTRUCTURE UPGRADES

BID SUBMISSION AT BELMONT LAKE STATE PARK

CONTRACT #: D006632 (GC), D006645 (E), D006646 (M), T006647 (P) 000005 - 1

DATE: 06/26/2026, ADDENDUM 3 10/01/2026 TABLE OF CONTENTS

VOLUME 1

TECHNICAL SPECIFICATION CONTENTS

Author Contract 000000 Cover All 000010 Table of Contents All 000170 Professional Seals and Certifications All

DIVISION 1 GENERAL REQUIREMENTS

011000 Summary of Work All 011400 Work Restrictions All 012100 Allowances All 012300 Alternates All 012500 Substitution Procedures All 012600 Contract Modification Procedures All 012900 Payment Procedures All 013000 Administrative Requirements All 013100 Project Management and Coordination All 013200 Construction Progress Documentation All 013300 Submittals All 013301 Submittal Procedures All 013500 Special Procedures All 014000 Quality Requirements All 014200 References All 015000 Temporary Construction, Facilities and Controls All 015100 Temporary Utilities All 015213 Field Office GC 015639 Temporary Tree and Plant Protection All 015713 Temporary Erosion and Sediment Control All 015813 Temporary Project Signage All 016000 Product Requirements All 017300 Execution All 017419 Construction Waste Management and Disposal All 017700 Closeout Procedures All 017823 Operations and Maintenance Data All 017839 Project Record Documents All

018113.01 Environmental Product Declaration (EPD) and Clean

Concrete Requirements All

DIVISION 2 EXISTING CONDITIONS

024119 Selective Demolition BBB All

DIVISION 3 CONCRETE

033000 Cast in Place Concrete CHA GC

DIVISION 4 MASONRY

042000 Unit Masonry BBB GC

CONTRACT #: D006632 (GC), D006645 (E), D006646 (M), T006647 (P) 000005 - 2

DIVISION 5 METALS

055000 Metal Fabrications BBB GC 055113 Metal Pan Stairs BBB GC

DIVISION 6 WOOD, PLASTICS, AND COMPOSITES

061053 Miscellaneous Rough Carpentry BBB GC 062000 Carpentry BBB GC 064023 Architectural woodwork BBB GC

DIVISION 7 THERMAL AND MOISTURE PROTECTION

071416 Cold Fluid-Applied Waterproofing BBB GC, E 072100 Thermal Insulation BBB GC 077173 Gutters and Downspouts BBB GC 079200 Joint Sealants BBB GC

DIVISION 8 OPENINGS

081113 Hollow Metal Doors and Frames BBB GC 081433 Stile and Rail Wood Doors BBB GC 083113 Access Doors BBB GC 083453 Bullet Resistant Door and Frame Assembly BBB GC 085653 Ballistic Transaction Window Assembly BBB GC 085663 Window Backglazing System BBB GC 087100 Finish Hardware BBB GC 088853 Bullet Resistant Glazing BBB GC 089000 Louvers BBB GC

DIVISION 9 FINISHES

090160 Refinishing of Wood Plank and Strip Flooring BBB GC 092300 Lathing and Plastering BBB GC 092900 Gypsum Drywall Assemblies BBB GC 096400 Wood Flooring BBB GC 096500 Resilient Flooring BBB GC 096516 Resilient Sheet Flooring BBB GC 096724 Resinous Flooring BBB GC 099000 Painting BBB GC

DIVISION 10 SPECIALTIES

102600 Corner Guards BBB GC 103400 Composite Pre-Fabricated Railing System BBB GC 104416 Fire Extinguishers BBB GC

DIVISION 12 FURNISHINGS

123661.16 Solid Surface Countertops BBB GC

123661.19 Engineered Quartz Countertops and Trim BBB GC

DIVISION 13 SPECIAL CONSTRUCTION

133423.11 Fabricated Electrical Houses LE E

DIVISION 16 LIGHTING

16502 LED Interior Building Lighting LU E

CONTRACT #: D006632 (GC), D006645 (E), D006646 (M), T006647 (P) 000005 - 3

DIVISION 21 FIRE PROTECTION

210500 General Fire Suppression Requirements LE P 210510 Common Work Results for Fire Suppression LE P 211313 Wet-Pipe Sprinkler Systems LE P

DIVISION 22 PLUMBING

220500 General Plumbing Requirements LE P 220503 Pipes & Tubes for Plumbing Piping & Equipment LE P 220529 Hangers & Supports for Plumbing Piping & Equipment LE P 220700 Plumbing Insulation LE P 221100 Facility Water Distribution LE P 224000 Plumbing Fixtures LE P

DIVISION 23 HVAC

230500 General Mechanical Requirements LE M 230501 Scope of HVAC Work LE M 230503 Pipes and Tubes for HVAC Piping & Equipment LE M 230523 General Duty Valves LE M 230529 Hangers and Supports LE M 230553 Identification for HVAC Piping and Equipment LE M 230593 Testing Adjusting and Balancing LE M 230700 HVAC Insulation LE M 233100 HVAC Ducts and Casings LE M 233300 Air Duct Accessories LE M 233700 Air Outlets and Inlets LE M 238200 Convection Heating and Cooling Units LE M

DIVISION 26 ELECTRICAL

260500 General Electrical Requirements LE E 260502 Inspections and Tests LE E 260505 Selective Demolition for Electrical LE E 260513 Medium-Voltage Cables LE E 260519 Low-Voltage Electrical Power Conductors and Cables LE E 260526 Grounding and Bonding for Electrical Systems LE E 260529 Hangers and Supports for Electrical Systems LE E 260533 Conduits for Electrical Systems LE E 260543 Underground Ducts and Raceways for Electrical

Systems

LE E

260544 Sleeves and Sleeve Seals for Electrical Raceways and Cabling

LE E

260553 Identification for Electrical Systems LE E

260573.13 Short-Circuit Studies LE E

260573.16 Coordination Studies LE E

260573.19 ARC-Flash Hazard Analysis LE E

260800 Commissioning of Electrical Systems LE E 260923 Lighting Control Devices LE E 261219 Pad-Mounted, Liquid-Filled, Medium-Voltage

Transformers

LE E

261329 Medium Voltage Pad Mounted Gear LE E

CONTRACT #: D006632 (GC), D006645 (E), D006646 (M), T006647 (P) 000005 - 4

262213 Low-Voltage Distribution Transformers LE E 262413 Switchboards LE E 262416 Panelboards LE E 262713 Electricity Metering LE E 262726 Wiring Devices LE E 262813 Fuses LE E 262816 Enclosed Switches and Circuit Breakers LE E

263213.13 Diesel-Engine-Driven Generator Sets LE

263600 Transfer Switches LE E 264313 Surge Protective Devices for Low-Voltage Electrical

Power Circuits

LE E

265619 LED Exterior Lighting LU E

DIVISION 31 EXTERIOR IMPROVEMENTS

310519.13 Geotextiles CHA GC

311000 Site Clearing CHA GC 312000 Earth Moving CHA GC 312333 Trenching and Backfilling CHA GC, E 312500 Erosion and Sediment Control CHA GC

DIVISION 32

321116 Subbase Courses CHA GC 321216 Asphalt Paving CHA GC 321400 Unit Paving CHA GC 321630 Concrete Sidewalks CHA GC 329000 Planting CHA GC 329113 Soil Preparation CHA GC 329200 Turf and Grasses CHA GC

DIVISION 33

330500 Common Work Results for Utilities CHA GC 330513 Manholes and Structures CHA GC

334100.20 High Density Polyethylene Storm Utility Drainage

Piping

CHA GC

TECHNICAL APPENDICES

1. Asbestos and Lead Paint Survey – Report of Findings EHI GC (by Environment Health Investigations, Inc.)

2. 100% CD Lighting Fixture Cuts LU E (by Lumen Architecture, PLLC.)

3. Clean Concrete Certification & Exemption Form* NYSPRHP

4. EPD Material Tracking Form* NYSPRHP

5. Material Quantity Design Report Form* NYSPRHP

* NYSPRHP Forms included for reference in PDF, and are available as Excel files for use.

END TABLE OF CONTENTS

CONTRACT #: D006632 (GC), D006645 (E), D006646 (M), T006647 (P) 000005 - 5

ABBREVIATIONS

BBB Beyer Blinder Belle, Architects and Planners, LLP (prime, architect)

CHA CHA Consulting Inc. (civil)

LE Loring Consulting Engineers, Inc. (MEP, FP engineer)

LU Lumen Architecture (Lighting Designer)

CONTRACT #: D006632 (GC) 042000-1

DATE: 10/01/2026, ISSUED UNDER ADDENDUM 3 10/01/2026 UNIT MASONRY

SECTION 042000 UNIT MASONRY

PART 1 GENERAL

1.1 GENERAL REQUIREMENTS

A. Work of this Section, as shown or specified, shall be in accordance with the requirements of the Contract Documents.

1.2 SECTION INCLUDES

A. The Work of this Section includes all labor, materials, equipment and services necessary to complete the unit masonry work as shown on the drawings and/or specified herein, including but not necessarily limited to the following:

1. Concrete block walls and partitions.

2. Metal joint reinforcing, anchors, ties, closures and related accessories for masonry.

3. Control and expansion joints in masonry, filled with joint fillers.

4. Building in of items furnished by others into masonry, including access doors, door frames, anchors, sleeves and inserts, and other similar items to be embedded in masonry.

5. Grouting in of metal items built into masonry work.

6. Protection, pointing and cleaning of masonry.

1.3 RELATED SECTIONS

A. Restoration Treatment and Cleaning for Historic Masonry – Section 040300.

B. Cold formed metal framing - Section 054000.

C. Steel lintels - Section 055000.

D. Building insulation - Section 072100.

E. Metal flashing - Section 076200.

F. Firestops and smokeseals - Section 078413.

G. Sealant - Section 079200.

1.4 SUBMITTALS

A. Submit Shop Drawings for the following:

1. Anchoring details.

2. Control and expansion joint locations and details.

B. Submit Samples for the following:

1. Joint reinforcing, each type, width and proposed location (labeled).

CONTRACT #: D006632 (GC) 042000-2

2. Anchors, wedges and ties, each type, width and proposed location (labeled).

3. Joint filler, each type.

4. Mortar color, 12" long cured sample.

C. Submit technical and installation information for the following:

1. Mortar materials, each material and mortar type.

2. Certification of mortar mix.

3. Concrete block, joint reinforcing, anchors, ties and joint filler; submit manufacturer's technical and descriptive literature.

4. Block manufacturer shall submit certifications of compliance with ASTM C 90, C 331 and UL 618 prior to any job site delivery. Field sampling of concrete block may be tested by an Independent Testing Laboratory retained by the Owner according to the requirements of ASTM C 140.

D. Construction Procedures (Submit the following)

1. Procedures and materials for cleaning masonry work; including certification that cleaner will not adversely affect stone, gaskets, sealants, etc.

1.5 QUALITY ASSURANCE

A. Conform to the following non-cumulative tolerances (any masonry work not meeting these standards shall be re-built as directed by the Architect).

1. Variation from the plumb:

a. In lines and surfaces of columns, walls and arrises:

1). In 10 feet 1/8" 2). In any story of 25 feet maximum 1/4" 3). In 40 feet or more 1/4"

b. For external corners, expansion joints and other conspicuous lines:

1). In any story of 25 feet maximum 1/4" 2). In 40 feet or more 3/8"

2. Variation from the level or the grades indicated on the drawings; for exposed lintels, sills, parapets, horizontal grooves and other conspicuous lines:

a. In any bay or 20 feet maximum 1/4"

b. In 40 feet or more 1/4"

3. Variation of the linear building lines from established position in plan related portion of columns and partitions:

a. In any bay or 20 feet maximum 1/4"

b. In 40 feet or more 1/2"

4. Variation in cross-sectional dimensions of columns and in thickness of walls:

a. Minus 1/8"

b. Plus 1/8"

CONTRACT #: D006632 (GC) 042000-3

5. Variation in dimensions of masonry openings:

a. Horizontal dimension -0" + 1/16"

b. Vertical dimension +0" - 1/16"

B. Work of this Section shall conform to the requirements of the following (unless otherwise superseded by prevailing Building Code):

1. 2008 ACI 530/ASCE 5/TMS 402 Building Code Requirements for Masonry Structures.

2. 2008 ACI 530-1/ASCE 6/TMS 602 Specifications for Masonry Structures.

1.6 PRODUCT HANDLING

A. General: Deliver, store, handle and protect all materials from damage, moisture, dirt and intrusion of foreign matter. Store all masonry units and mortar materials on raised platforms and under ventilated and waterproof cover. Store packaged materials in manufacturer's unopened containers, marked with manufacturer's name and product brand name. Immediately reseal containers after partial use. Remove and replace damaged materials.

B. Masonry Units: Pack, deliver and store to prevent breakage, cracking, chipping, spalling or other damage. Store, protect and ventilate units at project site.

C. Aggregate: Store with provisions for good drainage.

D. Reinforcement and Anchors: Store and protect so that when placed, joint reinforcement and anchors will be free of soil, dirt, ice, loose rust, scale, or other coatings which would destroy or reduce bond with mortar, and will not be disfigured or bent out of shape.

1.7 CODE REQUIREMENTS

A. Work of this Section shall conform to all applicable requirements of the New York State Building Code.

1.8 JOB CONDITIONS

A. In cold weather, when the outside temperature is below forty (40) degrees F., conform to the requirements of "Cold Weather Masonry Construction and Protection Recommendations" publication by Brick Industry Association (BIA). No anti-freeze admixtures are permitted.

1. In addition, conform to the following:

a. Masonry materials must be warmed as required.

b. Brickwork must be protected a minimum of 24 hours after installation so as to maintain enough heat for hydration of the cement in the mortar.

B. Hot-Weather Requirements: Protect unit masonry work when temperature and humidity conditions produce excessive evaporation of water from mortar and grout. Provide artificial shade and wind breaks and use cooled materials as required. Do not apply mortar to substrates with temperatures of 100 deg.

F. and above. In addition, conform to the following:

1. Masonry materials must be cool.

2. Mortar must be used within 2 hours of initial mixing.

CONTRACT #: D006632 (GC) 042000-4

PART 2 PRODUCTS

2.1 MATERIALS

A. Standard Concrete Block

1. Portland cement, ASTM C 150, Type 1, low alkali (less than 65) one source.

2. Aggregates, ASTM C 331, lightweight expanded shale, clay or slate aggregates, manufactured by the rotary kiln process equal to "Solite," "Norlite," or "Haydite."

a. Block scheduled to receive painted finish shall contain normal weight aggregate meeting ASTM C-33 in addition to light weight aggregate in order to receive a smooth, uniform finish.

3. Concrete Masonry Units: Load bearing lightweight aggregate concrete masonry units conforming to the requirements of ASTM C 90.

a. Block behind face brick and block for rated walls shall be 75% solid units.

b. All other block may be hollow units.

4. The producer of the concrete masonry units shall furnish certification from an independent testing laboratory confirming that all 8" or larger masonry units meet all of the UL 618 requirements for two (2) hours or better (as required), referencing full scale fire test reports (ASTM E 119). All 4" and 6" units shall conform to "National Bureau of Standards" and "National Research Council" full scale fire tests.

5. Sizes and Shapes: Nominal face size 8" x 16" by thickness as indicated on drawings, with stretcher units, jamb units, header units, square corner units (at ends and corners of exposed or painted work), sash units (at control joints within masonry wall), lintel units and other special shapes and sizes required to complete the work.

6. Finish: For exposed or painted block surfaces, in addition to ASTM requirements, block shall have uniformly dense, flat, fine grain texture, with no cracks, chips, spalls, or other defects which would impair appearance. For concealed CMU, surfaces shall be free from deleterious materials that would stain plaster or corrode metal.

7. Curing: All concrete block shall be steam cured, and air dried for not less than thirty (30) days before delivery.

8. Density of concrete block shall not exceed one hundred and five (105) lbs. per cubic foot.

9. Shrinkage: Shrinkage of concrete blocks shall not exceed 0.065% when tested in accordance with

ASTM C 426-99.

10. Water Content

a. At the time of delivery to the job site, concrete masonry units shall have a value, in weight of contained water, of not more than thirty (30) percent of the fully saturated content for the unit tested.

b. Ship all units from the factory, and store at the job site, with all necessary protection to prevent increase of water content from rain and other sources.

B. Joint Reinforcing for Masonry Walls

CONTRACT #: D006632 (GC) 042000-5

1. For interior block walls and partitions, provide standard reinforcing fabricated of 9 ga. side and cross rods, truss or ladder design, no ties, spaced every other block course. Provide prefabricated pieces at corners and intersections of walls or partitions. Reinforcing shall be mill galvanized conforming to ASTM A 641, Class B-1, applied after fabrication.

2. Wire used in assemblies noted above shall be cold drawn steel wire conforming to ASTM A 82.

3. Approved Joint Reinforcing Manufacturers

a. Hohmann & Barnard

b. Wire-Bond

c. Heckmann Building Products

d. National Wire Products Industries, Inc.

C. Anchors and Ties

1. Wire Mesh: Hot-dip galvanized sixteen (16) gage steel wire, square mesh, width intended for size of block by length to suit condition, or approved equal by manufacturer noted above in Para. C.5.

2. For anchoring masonry to structural steel, provide hot-dip galvanized steel, as listed, or approved equal by manufacturer noted above in Para. C.5:

a. Made by Heckmann Building Products. Galvanizing shall conform to ASTM A 153, with zinc coating of 1.5 oz. of zinc per sq. ft.

1). No. 195 Column Anchors 2). No. 197 Column Anchors 3). No. 315 Weld-On Anchor Rods with No. 316 Triangle Ties 4). No. 315-B Weld-On Anchor Straps with No. 316 Triangle Ties

b. Made by Hohmann & Barnard or approved equal. Galvanizing shall conform to ASTM A 153, with zinc coating of 1.5 oz. of zinc per sq. ft.

1). No. 355 Column Anchors 2). No. 356 Column Anchors 3). No. 357 Beam Anchors 4). No. 359 F anchor straps with VWT tie.

3. For anchoring CMU interior partitions to underside of steel beams, provide hot dip galvanized steel tube anchors equal to No. 419 and No. 421 made by Heckmann Building Products, No. PTA-420 made by Hohmann & Barnard, or approved equal by manufacturer noted above in Para. C.6.

4. For anchoring CMU interior partitions to underside of structural deck, provide 4" x 4" x 1/4" galvanized steel angles (ASTM A 36), 3'-0" long spaced 3'-0" o.c. alternately on each side of partition. Anchor partition securely to structural deck.

D. Reinforcing Bars and Rods: ASTM A 615, Grade 60. See Drawings for size.

E. Control and Expansion Joint Fillers

1. Vertical Installation Within Concrete Masonry Wall: Extruded high grade neoprene rubber, cross shape, for use with concrete masonry sash units, which shall provide a force fit in the grooves of the sash block, and shall have 1/2" diameter tubular ends (compressed 25% when installed in 3/8" wide joint).

a. Provide the following sizes:

1). 2-5/8" wide control joint fillers for 4" block walls.

CONTRACT #: D006632 (GC) 042000-6

2). 4-5/8" wide for 6" block walls.

3). 6-5/8" wide for 8", 10" and 12" block walls.

b. Provide backer rod and sealant joint over joint filler as per drawings and Section 079200 of these specifications.

2. Isolation Joint Filler at Abutting Construction and at Intersecting CMU Walls: Compressible and resilient closed cell neoprene gasket with pressure sensitive adhesive backing, thickness 30% greater than thickness of joint. Acceptable joint filler shall be "Everlastic, Type NN-1" by Williams Products, Inc., or approved equal. Recess joint filler and install backer rod and sealant as per drawings and Section 079200 of these specifications.

2.2 MORTAR MATERIALS

A. Portland Cement: ASTM C 150, Type 1, standard color, one source.

B. Hydrated Lime: ASTM C 207, Type S, as manufactured by Corsons, or approved equal.

C. Aggregate: Clean, washed, buff colored sand, graded per ASTM C 144.

D. Aggregate for Grout: ASTM C 404.

E. Water: Clean, fresh and suitable for drinking.

2.3 MORTAR MIX

A. Interior Masonry Construction: Provide Portland cement/lime mortar conforming to ASTM C 270, Type N, for load bearing conditions, mortar shall conform to ASTM C 270, Type M.

B. Reinforced Concrete Block: Provide Portland cement/lime mortar conforming to ASTM C 270, Type S.

C. Mortar for Cement Cants: One (1) part Portland cement and four (4) parts sand, by volume.

D. Grout for Unit Masonry: Comply with ASTM C 476 for grout for use in construction of unit masonry.

Use grout of consistency (fine or coarse) at time of placement which will completely fill all spaces intended to receive grout. Grout shall have a minimum compressive strength of 3000 psi when tested in accordance with ASTM C 1019.

E. Mixing

1. General: Add cement just before mixing and mix dry. Use sufficient amount of water as necessary to produce workable mix. Mix in small batches to make plastic mass.

2. Mixing: Machine mix all mortars in approved type mixer with device to accurately and uniformly control water. Add hydrated lime dry. Mix dry materials not less than two (2) minutes. Add water, then mix not less than three (3) minutes, not to exceed five (5) minutes. Mix only amount of mortar that can be used before initial set. Do not use mortar which has reached its initial set or two

(2) hours after initial mixing, whichever comes earlier. Mortar may not be re-tempered. Clean mixer for each batch, whenever mortar type is changed, and at end of each day's work.

3. Acceleration or other admixtures not permitted.

4. Mortar shall have a flow after suction of not less than seventy-five (75) percent of that immediately after mixing as determined by ASTM C 91.

CONTRACT #: D006632 (GC) 042000-7

F. Admixtures

1. No air-entraining admixtures or cementitious materials containing air-entraining admixtures shall be used in the mortar.

2. No antifreeze compounds or other substances shall be used in the mortar to lower the freezing point.

3. Calcium chloride or admixtures containing calcium chloride shall not be used in mortar.

PART 3 EXECUTION

3.1 SURFACE CONDITIONS

A. Inspection

1. Prior to all work of this Section, carefully inspect the installed work of all other trades and verify that all such work is complete to the point where this installation may properly commence.

2. Verify that masonry may be completed in accordance with all pertinent codes and regulations, the referenced standards, and the original design.

3. Do not start any work until mock-ups are approved by the Architect.

B. Discrepancies

1. In the event of discrepancy, immediately notify the Architect in writing.

2. Do not proceed with installation in areas of discrepancy until all such discrepancies have been fully resolved.

3. Starting of work by the Contractor means acceptance by the Contractor of the substrate.

3.2 COORDINATION

A. Carefully coordinate with all other trades to ensure proper and adequate interface of the work of other trades with the work of this Section.

3.3 PREPARATION

A. Concrete Block: Do not wet concrete block units.

3.4 INSTALLATION

A. General

1. Build walls to the full thickness shown. Build single wythe walls to the actual thickness of the masonry units, using units of nominal thickness shown.

2. Build chases and recesses as shown or required for the work of other trades.

3. Leave openings for equipment to be installed before completion of masonry work. After installation of equipment, complete masonry work to match work immediately adjacent to the opening.

CONTRACT #: D006632 (GC) 042000-8

4. Lay out walls in advance for accurate spacing of surface bond patterns with uniform joint widths and to properly locate openings, movement type joints, returns and off-sets. Avoid the use of less than half size units at corners, jambs and wherever possible.

5. Lay up walls plumb and true with courses level, accurately spaced and coordinated with other work.

6. Provide templates made of steel studs for plumbing of two story masonry openings.

7. Pattern Bond: Lay exposed masonry patterns as noted on drawings. If not shown, provide running bond. Lay concealed concrete block with all units in a wythe bonded by lapping not less than two

(2) inches. Bond and interlock each course of each wythe at corners. Do not use units of less than four (4) inches horizontal face dimensions at corners or jambs.

8. Where possible, masonry walls and partitions shall be built after all overhead ducts, pipes and conduits are in place and tested. Masonry shall be neatly built around the items above. Walls and partitions shall be plumb, true to line and free from defects such as open cells, voids, dry joints and other similar defects. In rooms and spaces scheduled to have concrete block finish, all such surfaces including upper wall surfaces up to termination of structural ceiling in spaces without suspended ceilings, shall be made suitable for paint application. Cutting of openings in walls and partitions in place shall be done only with the approval of the Architect.

9. Mortar, ties and reinforcement must not extend into or bridge any expansion joints.

B. Mortar Bedding and Jointing

1. Lay concrete masonry units with full mortar coverage on horizontal and vertical face shells. Bed webs in mortar in starting course on exterior walls and in all courses of piers, columns and pilasters, where solid CMU is used and where adjacent to cells or cavities to be reinforced or filled with concrete or grout.

a. To ensure alignment of brick and block coursing, adjust block back-up by cutting block to insure alignment of coursing or use adjustable anchorage.

2. Lay masonry walls with 3/8" joints unless otherwise shown on drawings.

3. Tool exposed joints slightly concave after the mortar joint is “thumbprint” hard. Concealed joints shall be struck flush, including at any CMU schedule to receive a waterproofing or air barrier membrane.

4. Remove masonry units disturbed after laying; clean and reset in fresh mortar. Do not pound corners at jambs to fit stretcher units which have been set in position. If adjustments are required, remove units, clean off mortar and reset in fresh mortar.

C. Stopping and Resuming Work: Rake back 1/2 block length in each course; do not tooth. Clean exposed surfaces of set masonry, wet units lightly (if required) and remove loose masonry units and mortar prior to laying fresh masonry.

D. Built-In Work

1. As the work progresses, build in items specified under this and other Sections of these specifications. Fill in solidly with masonry around built-in items.

2. Mortar in door frames, access doors, louvers and other metal items embedded or built into masonry work solidly with mortar as the masonry units are laid up.

CONTRACT #: D006632 (GC) 042000-9

3. Grout under lintels, bearing plates, and steel bearing on masonry with solid bed grout.

4. Sleeves, pipes, ducts and all other items which pass through masonry walls shall be caulked with interior grade sealant meeting requirements of Section 079200, so as to be air tight and prevent air leakage. Refer to Section 078413 for packing of voids in rated masonry walls.

5. Fill vertical cells of masonry units solid with grout which have anchoring, reinforcing rods, supporting or hanging devices embedded in the cell including stone anchors and window or curtain wall anchors.

6. Fill vertical cells of masonry units solid with mortar on each side of door frames to sixteen (16) inches beyond.

7. Unless otherwise noted, fill vertical cells of masonry units solid with grout which are below steel bearing plates, steel beams, and ends of lintels, to eight (8) inches beyond bearing and from floor to bearing.

8. Place wire mesh in horizontal joint below masonry unit cells to be filled with mortar, to prevent mortar from dropping into unfilled cells below.

9. Masonry indicated as being reinforced shall have all voids filled solid with grout. Grout shall be consolidated in place by vibration or other methods which insure complete filling of cells. When the least clear dimension of the grouted cell is less than two (2) inches, the maximum height of grout pour shall not exceed twelve (12) inches. When the least clear dimension is two (2) inches or more, maximum height of grout pour shall not exceed forty-eight (48) inches. When grouting is stopped for one (1) hour or longer, the grout pour shall be stopped 1-1/2" below the top of a masonry unit. Vertical bar reinforcing shall be accurately placed and held in position while being grouted, and shall be in place before grouting starts. All such reinforcing shall have a minimum clear cover of 5/8". Lap all bars a minimum of forty (40) bar diameters and provide steel spacer ties (not to exceed 192 bar diameter) to secure and position all vertical steel and prevent displacement during grouting. Provide continuous horizontal reinforcement embedded in mortar joints every second course.

E. Cutting and Patching

1. All exposed masonry which requires cutting or fitting shall be cut accurately to size with motorized carborundum or diamond saw, producing cut edges.

2. Holes made in exposed masonry units for attachment of handrail brackets and similar items shall be neatly drilled to proper size.

3. All masonry which requires patching in exposed work, if approved by Architect, shall be patched neatly with mortar to match appearance of masonry as closely as possible and to the Architect's satisfaction. Rake back joints and use pointing mortar to match as required.

F. Interior Block Partitions

1. Build to full height unless otherwise shown on drawings. At non-rated partitions fill void between CMU and structural deck with continuous neoprene filler conforming to the requirements of Section 079100. At fire rated partitions, fill void with fire stop material meeting the requirements of Section 078413. Fasten to structure at top of partition using steel angles as specified herein.

2. Provide continuous horizontal joint reinforcing every other block course, except as otherwise noted. Fully embed longitudinal side rods in mortar for their entire length with a minimum cover of 5/8". Lap reinforcement a minimum of six (6) inches at ends of units.

CONTRACT #: D006632 (GC) 042000-10

3. Provide continuity at corners and wall intersections by use of prefabricated "L" and "T" sections.

Cut and bend units as directed by manufacturer for continuity at returns, offsets, column fireproofing, pipe enclosures and other special conditions.

4. Corners

a. Provide interlocking masonry unit bond in each course at corners.

b. Provide continuity at corners with prefabricated "L" reinforcement units, in addition to masonry bonding.

5. Intersecting and Abutting Walls

a. Unless vertical control joints are shown as part of structural frame, provide interlocking masonry bond. Provide starters and special shapes as shown on the drawings to bond these walls.

b. In addition to masonry bonding, provide horizontal reinforcement using prefabricated "T" units at interior partitions.

G. Ties and Anchors for Masonry Construction

1. Provide ties and anchors as shown or specified, but not less than one metal tie, spaced not to exceed sixteen (16) inches o.c. horizontally and/or vertically. Provide additional ties within 1'-0" of all openings and adjacent to expansion joints and spaced not more than 16" apart around perimeter of openings.

2. Anchor masonry to structure complying with the following:

a. Provide an open space not less than 1/2" in width between masonry and structural member, unless otherwise shown. Keep open space free of mortar or other rigid materials.

H. Control and Expansion Joints

1. Provide expansion, control and isolation joints in masonry as shown. Build in related items as the masonry work progresses.

2. CMU Control Joint Spacing: If location of control joints is not shown, place vertical joints spaced not to exceed 25'-0" o.c. In addition, locate joints at points of natural weakness in the masonry work, including the following:

a. At structural column or joint between bay.

b. Above control joints in the supporting structure.

c. Above major openings at end of lintels upward and below at ends of sills downward. Place at one side of jamb for openings less than 6'-0" wide and at both sides for openings over 6'-0" wide.

d. At reduction of wall thickness.

e. Where masonry abuts supporting structure.

f. If additional joints are required, indicate same on approved shop drawings.

I. Lintels

1. Install loose steel lintels furnished by Section 055000, allowing eight (8) inch bearing at ends.

2. For concrete block walls, use specially formed U-shaped concrete block lintel units with reinforcing bars in accordance with the following table, filled with grout.

CONTRACT #: D006632 (GC) 042000-11

Number and Size of Reinforcing Bars Required at Concrete Block Lintels

Maximum Clearance Span Wall Width Rebar

No. - Size

2'-0" to 6'-0" 6'-0" to 8'-0"

6" 2 - #3 2 - #4

2'-0" to 6'-0" 6'-0" to 8'-0"

8" 2 - #3 2 - #4

2'-0" to 6'-0" 6'-0" to 8'-0"

12" 3 - #3 3- #4

3. U-shaped concrete block lintels shall extend a minimum of 8” at each side of opening.

3.5 CLEANING, PROTECTION, ADJUSTMENT

A. Protection

1. The Contractor shall take adequate precautions for the protection of all surfaces against mortar spatter, and shall immediately remove any such spatter should it inadvertently occur, leaving no stain or discoloration.

2. Excess mortar shall be wiped off the masonry surfaces as the work progresses.

3. Wood coverings shall be placed over all such masonry surfaces as are likely to be damaged during the progress of the entire project.

4. Protective measures shall be performed in a manner satisfactory to the Architect.

5. Damaged masonry units shall be replaced to satisfaction of the Architect.

6. Exterior masonry walls shall be draped with waterproof covering until copings are in place, to prevent water penetration in cavity.

B. Clean-Up

1. Upon completion, all exposed masonry shall be thoroughly cleaned following recommendations of the BIA Technical Note No. 20. Before applying any cleaning agent to the entire wall, it shall be applied to a sample wall area of approximately 4' x 4' in a location approved by the Architect. No further cleaning work may proceed until the sample area has been approved by the Architect, after which time the same cleaning materials and method shall be used on the remaining wall area. If stiff brushes and water do not suffice, the surface shall be thoroughly saturated with clear water and then scrubbed with a solution of an approved detergent masonry cleaner, equal to "Vana Trol" made by ProSoCo Inc. or equal made by Diedrich or approved equal, mixed and applied as per manufacturer's directions, followed immediately by a thorough rinsing with clear water. All adjacent non-masonry surfaces shall be thoroughly protected during cleaning.

a. Unless otherwise required by cleaning agent manufacturer use only low pressure device (30 to 50 psi) for application of cleaning agent and water rinsing.

C. Pointing: Point any defective joint with mortar identical with that specified for that joint.

CONTRACT #: D006632 (GC) 042000-12

END OF SECTION

CONTRACT #: D006632 (GC) 090160 - 1

DATE: 06/26/2026, ISSUED UNDER ADDENDUM 3 10/01/2026 REFINISHING OF WOOD PLANK & STRIP FLOORING

SECTION 090160 – REFINISHING OF WOOD PLANK AND STRIP FLOORING

PART 1 GENERAL

1.1 GENERAL REQUIREMENTS

A. Work of this Section, as shown or specified, shall be in accordance with the requirements of the

Contract Documents.

1.2 SECTION INCLUDES

A. Work of this Section includes all labor, materials, equipment and services necessary to complete mock-ups and the wood flooring refinishing, as shown on the drawing schedules, and/or specified herein, including but not limited to, the following:

1. Refinish existing wood floors.

2. Provide areas of new wood to match existing at existing repaired or patched flooring.

1.3 QUALITY ASSURANCE

A. General Standard: Comply with recommendations of National Flooring Manufacturer's Association

(NFMA).

B. Source Quality Control: Obtain flooring patch wood materials and components of each type from single manufacturer or source, to ensure match of quality, color, pattern and texture.

1.4 SUBMITTALS

A. Product Data: Submit manufacturer's detailed technical product data and installation instructions for each new component of wood flooring. Include instructions for handling, storage, installation, finishing, protection and maintenance.

B. Samples: Submit sets of patching samples for wood flooring.

1. Include twenty-four inch (24”) samples of reclaimed and new wood replacement for each type of wood.

C. Submit product data for all stains, stain sealers, fill repairs, and clear-coat finishes, for all floor types.

1.5 MOCK-UPS

A. Identify locations for mock-up with Owners.

B. Provide 3-0" x 3'-0" mock-up in place of the stripping or screening and refinishing process of each type of wood floor for Architect's review and approval. Demostrate the process as well as the process of replacing floor area that is missing or damaged.

1.6 DELIVERY, STORAGE AND HANDLING

A. Moisture Content: At time of delivery, limit average moisture content of wood flooring components to 12%, with 14% maximum for any piece.

CONTRACT #: D006632 (GC) 090160 - 2

B. Protect wood flooring materials from excessive moisture in shipment, storage and handling. Deliver in unopened cartons or bundles and store in a dry place, with adequate air circulation. Do not deliver material to building until "wet work" such as concrete and plaster have been completed and cured to a condition of equilibrium.

1.7 PROJECT CONDITIONS

A. Conditioning: Do not proceed with installation of wood flooring work until spaces have been enclosed and are at approximate humidity condition planned for occupancy. Condition wood materials for 5 days prior to start of installation by placing in spaces to receive flooring and maintaining ambient temperature between 65- and 70-degrees F. before, during and after installation.

Open packages of new wood flooring unit which are sealed to permit natural adjustment of moisture content.

PART 2 PRODUCTS

2.1 WOOD MATERIALS REPAIR

A. Wood Strip and Plank Flooring: Furnish wood of species and dimensions to match existing or as approved by the Architect. Wood flooring to be used as replacement pieces for existing non-matching or deteriorated wood and shall match existing in species, size, color, grain and overall appearance.

Flooring shall be grooved and routed to match existing if it exists, for ease and quality of installation, mating new units to existing. Flooring shall match existing patterns and sizes to replicate existing types, complying with grading rules. Wood shall be kiln-dried.

1. 2” to 2-1/4” wide Pine Strip Flooring.

B. Subflooring: CDX type 1/2” and 3/4” thick plywood sheathing where noted.

C. Wood Trim: Provide wood saddles and thresholds, as indicated in or adjacent to wood flooring, of same species, grade and cut as wood flooring, unless otherwise noted. All wood saddle dimensions and heights are to be ADA compliant and meet existing flooring materials. Sizes and heights will vary.

D. Shims and sleepers as required to meet floor elevations.

2.2 WOOD FIELD FINISHING AND MOCK-UP TRIALS

A. Match existing wood floor types.

B. Wood Filler: Compatible with finish system components and recommended by filler and finish manufacturers for use indicated. If required to match approved Samples, provide pigmented filler.

Fillers are to be used in floor boards and not between floor boards.

C. Stain: Deep Penetrating and nonfading type; color shall match Field approved mock-ups and be sealed prior to finish coats.

1. Basis of Design Manufacturer: BONA Chroma custom stain and 2 coats of Bona Clearseal stain…

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