B01 Attachment J12 - Specification Revisions 7.23.2021.pdf

07-22-2021 EDI-Dolejs, Inc. # 21-031

21-031 - Monacan Health Clinic ADDENDUM THREE- 1

IHS # NS21MA002H7

ELECTRICAL ADDENDUM THREE

DIVISION 26, 27, 28 – ELECTRICAL, COMMUNICATIONS, AND SECURITY

CHANGES TO THE PROJECT MANUAL:

None

CHANGES TO THE ELECTRICAL DRAWINGS:

Drawing E1.1 – Site Plan – Electrical: Provide the following changes.

1. In Addendum #2, the site lighting fixture Type AA on east parking was omitted to accommodate those parking stalls being removed from the project.

2. As part of this Addendum, that Type AA light fixture that was omitted shall be relocated to be installed centered over the new South parking stalls that was added as part of this addendum in lieu of being omitted under Addendum 2. Light fixture to be installed West of new parking stalls. Coordinate exact location with Architect/Engineer prior to installation of concrete foundation.

3. Branch circuiting panel LP1/36 and match controls of site lighting.

4. Refer to civil site plan C08 for reference.

APPROVED MANUFACTURER SUBSTITUTIONS: Naming below does not guarantee approval, substitutions must meet requirements of the specifications and plans.

Section: Item: Manufacturer:__________________ N/A

END OF ELECTRICAL ADDENDUM THREE

21-031 - Monacan Health Clinic ADDENDUM THREE- 1

IHS # NS21MA002H7

MECHANICAL/ELECTRICAL ADDENDUM THREE

DIVISION 21 – FIRE PROTECTION

CHANGES TO THE PROJECT MANUAL:

None.

CHANGES TO THE MECHANICAL DRAWINGS:

None.

APPROVED MANUFACTURER SUBSTITUTIONS: Naming below does not guarantee approval, substitutions must meet requirements of the specifications and plans.

Section: Item: Manufacturer:__________________ X X X

DIVISION 22 – PLUMBING

CHANGES TO THE PROJECT MANUAL:

None.

CHANGES TO THE MECHANICAL DRAWINGS:

None.

APPROVED MANUFACTURER SUBSTITUTIONS: Naming below does not guarantee approval, substitutions must meet requirements of the specifications and plans.

Section: Item: Manufacturer:__________________ X X X

DIVISION 23 – HEATING, VENTILATION, AND AIR CONDITIONING

CHANGES TO THE PROJECT MANUAL:

None.

CHANGES TO THE MECHANICAL DRAWINGS:

Drawing M0.1 – Mechanical Title Sheet (Re-issued):

1. Replace Drawing M0.1 with revised Drawing M0.1 issued as part of this Addendum.

APPROVED MANUFACTURER SUBSTITUTIONS: Naming below does not guarantee approval, substitutions must meet requirements of the specifications and plans.

Section: Item: Manufacturer:__________________ X X X

21-031 - Monacan Health Clinic ADDENDUM THREE- 2

IHS # NS21MA002H7

DIVISION 26, 27, 28 – ELECTRICAL, COMMUNICATIONS, AND SECURITY

CHANGES TO THE PROJECT MANUAL:

None

CHANGES TO THE ELECTRICAL DRAWINGS:

Drawing E1.1 – Site Plan – Electrical: Provide the following changes.

1. In Addendum #2, the site lighting fixture Type AA on east parking was omitted to accommodate those parking stalls being removed from the project.

2. As part of this Addendum, that Type AA light fixture that was omitted shall be relocated to be installed centered over the new South parking stalls that was added as part of this addendum in lieu of being omitted under Addendum 2. Light fixture to be installed West of new parking stalls. Coordinate exact location with Architect/Engineer prior to installation of concrete foundation.

3. Branch circuiting panel LP1/36 and match controls of site lighting.

4. Refer to civil site plan C08 for reference.

APPROVED MANUFACTURER SUBSTITUTIONS: Naming below does not guarantee approval, substitutions must meet requirements of the specifications and plans.

Section: Item: Manufacturer:__________________ N/A

END OF MECHANICAL/ELECTRICAL ADDENDUM THREE

kimley-horn.com 1700 Willow Lawn Drive, Suite 200; Richmond, VA 23230 804 673 3882

MEMORANDUM

To: Ryan Turner, DSGW Architects

From: Mark Boyd, P.E.

Kimley-Horn and Associates, Inc.

Date: July 23, 2021

Subject: Monacan Health Clinic, Addendum #3 – Narrative of Revisions

The following narrative is intended as a general summary of changes to the Contract Documents.

Changes depicted on the Drawings shall be the sole reference for detail requirements for the

Revision.

Sheet Number Sheet Name Description of Revisions

C04 Demolition and

Phase I E&SC

Plan

1. Revised limits of disturbance, safety fence and silt fence associated with updated layout.

C05 Phase II E&SC

Plan

1. Revised limits of disturbance, safety fence, silt fence and inlet protection associated with updated layout.

C08 Site Plan 1. Removed entrance to Route 29 and provided cross access to southern property.

C08 Site Plan 1. Added storm structure and pipe to underground detention.

C10 Grading Plan 1. Revised grading to match the updated layout.

C10 Grading Plan 1. Added storm structure and pipe to underground detention.

C11 Drainage Areas and Water

Quantity Plan

1. Revised calculations to match the updated layout.

C12 Water Quality

Plan

1. Revised calculations to match the updated layout.

kimley-horn.com 1700 Willow Lawn Drive, Suite 200; Richmond, VA 23230 804 673 3882

C13 Storm Sewer

Profiles and

Calculations

1. Revised calculations to match the updated layout.

C13 Storm Sewer

Profiles and

Calculations

1. Added storm sewer profile for structure 111 to UG4.

C17 Planting Plan 1. Removed the fence along the eastern property line.

C17 Planting Plan 1. Revised tree and shrub locations to match updated layout.

21041 - Monacan Health Clinic

00 01 10 - 1 TABLE OF CONTENTS – REVISED

Addendum #3

SECTION 00 01 10

TABLE OF CONTENTS - REVISED

MONACAN HEALTH CLINIC

MADISON HEIGHTS, VIRGINIA

VOLUME 1 – DIVISIONS 00 - 12

DIVISION 00 -- PROCUREMENT AND CONTRACTING REQUIREMENTS

00 01 01 – Project Manual Title and Registration Sheet 00 01 10 – Table of Contents 00 01 15 – Schedule of Drawings 00 31 00 – Available Project Information 00 43 25 – Request for Approval of Substitution 00 72 00 – General Conditions 00 73 00 – Supplementary General Conditions

DIVISION 01 -- GENERAL REQUIREMENTS

01 10 00 – Summary 01 20 00 – Price and Payment Procedures 01 23 00 – Alternates 01 30 00 – Administrative Requirements 01 40 00 – Quality Requirements 01 50 00 – Temporary Facilities and Controls 01 60 00 – Product Requirements 01 70 00 – Execution and Closeout Requirements 01 78 00 – Closeout Submittals

DIVISION 02 – EXISTING CONDITIONS

02 41 00 – Demolition

DIVISION 03 – CONCRETE

03 10 00 – Concrete Forming 03 20 00 – Concrete Reinforcing 03 30 00 – Cast in Place Concrete

DIVISION 04 -- MASONRY

04 72 00 – Cast Stone Masonry 04 73 00 – Manufactured Stone Masonry

DIVISION 05 -- METALS

05 12 00 – Structural Steel Framing 05 31 00 – Steel Decking 05 40 00 – Cold Formed Metal Framing 05 50 00 – Metal Fabrications

DIVISION 06 -- WOOD, PLASTICS, AND COMPOSITES

06 10 00 – Rough Carpentry 06 15 00 – Wood Decking 06 17 53 – Shop Fabricated Wood Trusses 06 18 00 – Glued-Laminated Construction 06 20 00 – Finish Carpentry 06 41 00 – Architectural Wood Casework 06 82 19 – Fiberglass Reinforced Wall Panels

00 01 10 - 2 TABLE OF CONTENTS – REVISED

DIVISION 07 -- THERMAL AND MOISTURE PROTECTION

07 11 13 – Bituminous Damproofing 07 21 00 – Thermal Insulation 07 25 00 – Weather Barriers 07 31 13 – Asphalt Shingles 07 41 13 – Metal Roof Panels 07 42 13 – Metal Wall Panels 07 46 26 – Engineered Wood Siding 07 46 46 – Fiber Cement Siding 07 53 00 – Elastomeric Membrane Roofing 07 62 00 – Sheet Metal Flashing and Trim 07 84 00 – Firestopping 07 90 05 – Joint Sealers

DIVISION 08 -- OPENINGS

08 11 13 – Hollow Metal Door and Frames 08 14 16 – Flush Wood Doors 08 31 00 – Access Doors and Panels 08 33 23 – Overhead Coiling Doors 08 42 29 – Automatic Entrance Doors 08 43 13 – Aluminum Framed Storefronts 08 52 13 – Aluminum/Wood Composite Windows 08 71 00 – Door Hardware 08 80 00 – Glazing 08 91 00 - Louvers

DIVISION 09 -- FINISHES

09 21 16 – Gypsum Board Assemblies 09 30 00 - Tiling 09 51 00 – Acoustical Ceilings 09 65 00 – Resilient Flooring 09 68 13 – Tile Carpeting 09 72 00 – Wall Coverings 09 90 00 – Painting and Coating

DIVISION 10 -- SPECIALTIES

10 11 01 – Visual Display Boards 10 21 23 - Cubicles 10 26 01 – Handrails and Wall Protection 10 28 00 – Toilet Accessories 10 44 00 – Fire Protection Specialties 10 51 26 – Plastic Lockers 10 73 13 - Awnings 10 73 16 – Canopies 10 75 00 – Flagpoles

DIVISION 12 -- FURNISHINGS

12 24 13 – Window Shade Systems 12 48 13 – Entrance Floor Mats and Frames

VOLUME 2 – DIVISIONS 21 - 33

DIVISION 21 -- FIRE SUPPRESSION

21 00 01 – Fire Protection Certification 21 10 00 – Water-Based Fire Protection Systems

00 01 10 - 3 TABLE OF CONTENTS – REVISED

DIVISION 22 -- PLUMBING

22 00 01 – Plumbing Certification 22 00 10 – General Provisions 22 05 00 – Common Work Results for Plumbing 22 05 13 – Common Motor Requirements for Plumbing Equipment 22 05 19 – Meters and Gages for Plumbing Piping 22 05 23 – General-Duty Valves for Plumbing Piping 22 05 29 – Hangers and Supports for Plumbing Piping and Equipment 22 05 53 – Identification for Plumbing Piping and Equipment 22 07 00 – Plumbing Insulation 22 11 16 – Domestic Water Piping 22 11 19 – Domestic Water Piping Specialties 22 11 23 – Domestic Water Pumps 22 11 23.13 – Domestic Water Packaged Booster Pump System 22 13 16 – Sanitary Waste and Vent Piping 22 13 19 – Sanitary Waste Piping Specialties 22 14 13 – Facility Storm Drainage Piping 22 14 23 – Storm Drainage Piping Specialties 22 34 00 – Liquid Propane, Fuel-Fired Domestic-Water Heaters 22 40 00 – Plumbing Fixtures 22 45 00 – Emergency Plumbing Fixtures 22 47 00 – Drinking Fountains and Water Coolers 22 61 13 – Compressed-Air Piping for Dental Facilities 22 62 13 – Vacuum Piping for Dental Facilities

DIVISION 23 -- HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC)

23 00 01 – Mechanical Certification 23 00 10 – General Provisions 23 05 00 – Common Work Results for HVAC 23 05 13 – Common Motor Requirements for HVAC Equipment 23 05 16 – Expansion Fittings and Loops for HVAC Piping 23 05 19 – Meters and Gages for HVAC Piping 23 05 23 – General-Duty Valves for HVAC Piping 23 05 29 – Hangers and Supports for HVAC Piping and Equipment 23 05 48 – Vibration Controls for HVAC Piping and Equipment 23 05 53 – Identification for HVAC Piping and Equipment 23 05 93 – Testing, Adjusting, and Balancing for HVAC 23 07 00 – HVAC Insulation 23 08 00 – Commissioning of HVAC 23 09 00 – Instrumentation and Control for HVAC 23 09 93 – Sequence of Operations for HVAC Controls 23 11 16 – Facility Liquified-Petroleum Gas Piping 23 21 13 – Hydronic Piping and Specialties 23 21 23 – Hydronic Pumps 23 31 13 – Metal Ducts 23 33 00 – Air Duct Accessories 23 34 23 – HVAC Power Ventilators 23 36 00 – Air Terminal Units 23 37 13 – Grilles, Registers and Diffusers 23 51 00 – Breechings, Chimneys, and Stacks 23 52 16 – Fire-Tube Condensing Boilers 23 62 00 – Packaged Compressor and Condenser Units 23 73 13 – Modular Central-Station Air-Handling Units 23 81 26 – Split-System Air-Conditioners 23 82 39 – Unit Heaters 23 83 16 – Radiant-Heating Hydronic Piping

00 01 10 - 4 TABLE OF CONTENTS – REVISED

DIVISION 26 – ELECTRICAL

26 00 01 – Electrical Certification 26 00 10 – General Provisions for Electrical Work 26 00 11 – Electrical Alternates 26 01 00 – Construction Power and Lighting 26 04 00 – Underground Electrical Service 26 04 45 – Electrical Connections to Equipment 26 05 00 – Common Work Results for Electrical 26 05 19 – Low-Voltage Electrical Power Conductors and Cables 26 05 23 – Control-Voltage Electrical Power Cables 26 05 26 – Grounding and Bonding for Electrical Systems 26 05 29 – Hangers and Support for Electrical Systems 26 05 33 – Raceways and Boxes for Electrical Systems 26 05 53 – Identification for Electrical Systems 26 09 24 – Local Low-voltage Lighting Control System 26 09 26 – Relay Based Lighting Control (Network) 26 24 13 – Switchboards 26 24 16 – Panelboards 26 27 26 – Wiring Devices 26 28 13 – Fuses 26 28 16 – Enclosed Switches and Circuit Breakers 26 29 13 – Enclosed Controllers 26 29 23 – Variable-Frequency Motor Controllers 26 51 19 – LED Interior Lighting 26 52 19 – Emergency and Exit Lighting 26 56 19 – LED Exterior Lighting 26 70 00 – Pathways for Communications and Security Systems 26 71 11 – Digital, Addressable Fire-Alarm System

DIVISION 27 – COMMUNICATIONS

27 00 01 – Communications Certification 27 00 10 – General Provisions 27 01 00 – Operation, Maintenance & Warranty 27 05 00 – Common Work Results for Communications 27 05 26 – Grounding for Communications 27 05 28 – Pathways for Communications 27 05 53 – Identification for Communications Systems 27 06 00 – Schedules for Communications 27 08 00 – Testing of Communications Systems 27 10 00 – Structured Cabling Requirements 27 11 00 – Communications Equipment Room Fittings 27 11 13 – Communications Entrance Protection 27 11 16 – Cabinets, Racks, Frames & Enclosures 27 11 19 – Patch Panels 27 11 23 – Cable Management & Ladder Rack 27 11 26 – Rack Mounted Power Protection & Power Strips 27 13 23 – Optical Fiber Back-Bone Cabling 27 15 13 – Copper Horizontal Cabling 27 15 43 – Faceplates & Connectors 27 16 19 – Patch Cords & Cross Connect Wire

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

28 00 01 – Security Certification 28 00 10 – General Provisions 28 05 28 – Pathways for Electronic Safety and Security 28 23 13 – Video Surveillance Control and Management Systems 28 61 00 – CCTV Cabling System

00 01 10 - 5 TABLE OF CONTENTS – REVISED

DIVISION 31 -- EARTHWORK

31 22 00 – Grading 31 23 16 – Excavation 31 23 23 – Fill

DIVISION 33 – UTILITIES

33 41 00 - Subdrainage

END OF SECTION

21041 – Monacan Health Clinic 00 01 15 - 1 SCHEDULE OF DRAWINGS

IHS # NS21MA002H7 - REVISED

Addendum #3

SECTION 00 01 15

SCHEDULE OF DRAWINGS - REVISED

MONACAN HEALTH CLINIC

MADISON HEIGHTS, VIRGINIA

SHEET TITLE

A0.1 Title Sheet

CIVIL

C01 Cover Sheet C02 General Notes C03 Existing Conditions C04 Demolition and Phase I E&SC Plan C05 Phase II E&SC Plan C06 Erosion and Sediment Control Narrative C07 Pollution Prevention Plan C08 Site Plan C09 Site Details C10 Grading Plan C11 Drainage Areas and Water Quantity Plan C12 Water Quality Plan C13 Storm Sewer Profiles and Calculations C14 Drainage Details C15 Utility Plan C16 Utility Details C17 Planting Plan C18 Planting Notes and Details

ARCHITECTURAL

A1.1 Life Safety Plan & Summary A1.2 Architectural Site Plan A2.1 First Floor Plan A2.2 Floor Finish Pattern Plan A2.3 Enlarged Plan - Prime Care and Pharmacy Area A2.4 Enlarged Plan - Common and Administration Area A2.5 Enlarged Plan - Dental, Behavioral and Care Manager Area A2.6 Roof Plan A3.1 First Floor RCP A4.1 Finish Schedule A4.2 Door Schedules and Types A4.3 Window Types & Details A5.1 Exterior Elevations A6.1 Building Sections

A6.2 Wall Sections Details A6.3 Wall Sections Details A7.1 Interior Elevations

A7.2 Millwork Sections A9.1 Fixture Mounting Heights

STRUCTURAL

S0.0 Isometric Views S0.1 Structural Notes S1.1 Typical Concrete & CMU Details/Roof Load Map Plan S1.2 Typical Wood Details S2.1 Foundation Plan S2.2 Roof Framing Plan S3.1 Foundation Sections/Details S4.1 Framing Sections/Details S4.2 Framing Sections/Details

21041 – Monacan Health Clinic 00 01 15 - 2 SCHEDULE OF DRAWINGS

IHS # NS21MA002H7 - REVISED

Addendum #3

MECHANICAL

M0.1 Mechanical Title Sheet M1.1 Site Plan – Mechanical M2.1 First Floor Plan – Fire Protection M3.0 Underfloor Plan – Plumbing M3.1 First Floor Plan – Plumbing M3.2 Plumbing Riser Diagram – Waste and Vent M3.3 Plumbing Riser Diagram – Waste and Vent M3.4 Plumbing Riser Diagram – Domestic Water M3.5 Plumbing Riser Diagram – Domestic Water M4.1 First Floor Plan – Piping M5.1 First Floor Plan – HVAC M6.1 Roof Plan – Mechanical M7.1 Mechanical Schedules M8.1 Mechanical Details M8.2 Mechanical Details M8.3 Mechanical Details M8.4 Mechanical Details

ELECTRICAL

E0.1 Electrical Title Sheet E1.1 Site Plan – Electrical E2.1 Floor Plan – Lighting E3.1 Floor Plan – Power E3.2 Roof Plan – Power E4.1 Floor Plan – Systems E5.1 Power Riser Diagram E5.2 Enlarged Floor Plans – Electrical E6.1 Schedules – Electrical E6.2 Schedules – Electrical E7.1 Details - Electrical E7.2 Details - Electrical E7.3 Details - Electrical E7.4 Details - Electrical

EQUIPMENT

Q1.1 First Floor Equipment Plan Q2.1 Equipment Schedule Q2.2 Equipment Schedule Q2.3 Equipment Schedule

IHS # NS21MA002H7 04 72 00 - 1 CAST STONE MASONRY

SECTION 04 72 00

CAST STONE MASONRY

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Architectural cast stone.

B. Units required are:

1. Exterior wall units, including wall caps, coping, and sills or as shown on drawings.

1.02 RELATED REQUIREMENTS

A. Section 04 20 00 - Unit Masonry: Installation of cast stone in conjunction with masonry.

B. Section 07 90 05 - Joint Sealers: Materials and execution methods for sealing soft joints in cast stone work.

1.03 REFERENCE STANDARDS

A. ACI 318 - Building Code Requirements for Structural Concrete and Commentary; American Concrete Institute International; 2011.

B. ASTM A185/A185M - Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete; 2007.

C. ASTM A615/A615M - Standard Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement; 2012.

D. ASTM C33/C33M - Standard Specification for Concrete Aggregates; 2011a.

E. ASTM C150/C150M - Standard Specification for Portland Cement; 2012.

F. ASTM C270 - Standard Specification for Mortar for Unit Masonry; 2012.

G. ASTM C494/C494M - Standard Specification for Chemical Admixtures for Concrete; 2012.

H. ASTM C642 - Standard Test Method for Density, Absorption, and Voids in Hardened Concrete;

2006.

I. ASTM C1364 - Standard Specification for Architectural Cast Stone; 2010b.

1.04 SUBMITTALS

A. See Section 01 30 00 - Administrative Requirements, for submittal procedures.

B. Manufacturer's Qualification Data: Documentation showing compliance with specified requirements.

C. Product Data: Test results of cast stone components made previously by the manufacturer.

D. Shop Drawings: Include elevations, dimensions, layouts, profiles, cross sections, reinforcement, exposed faces, arrangement of joints, anchoring methods, anchors, and piece numbers.

E. Mortar Color Selection Samples.

1.05 QUALITY ASSURANCE

A. Manufacturer Qualifications: A current producer member of the Cast Stone Institute with a minimum of 5 years of experience in producing cast stone of the types required for project and:

1. Adequate plant capacity to furnish quality, sizes, and quantity of cast stone required without delaying progress of the work.

2. Products previously produced by plant and exposed to weather that exhibit satisfactory appearance.

B. Source Quality Control: Test compressive strength and absorption of specimens selected at random from plant production.

1. Test in accordance with ASTM C642.

2. Select specimens at rate of 3 per 500 cubic feet (3 per 14 cubic m), with a minimum of 3 per production week.

21041 - Monacan Health Clinic CAST STONE MASONRY IHS # NS21MA002H7 04 72 00 - 2 Addendum #3

1.06 DELIVERY, STORAGE, AND HANDLING

A. Deliver cast stone components secured to shipping pallets and protected from damage and discoloration. Protect corners from damage.

B. Number each piece individually to match shop drawings and schedule.

C. Store cast stone components and installation materials in accordance with manufacturer's instructions.

D. Store cast stone components on pallets with non-staining, waterproof covers. Ventilate under covers to prevent condensation. Prevent contact with dirt.

E. Protect cast stone components during handling and installation to prevent chipping, cracking, or other damage.

F. Store mortar materials where contamination can be avoided.

G. Schedule and coordinate production and delivery of cast stone components with unit masonry work to optimize on-site inventory and to avoid delaying the work.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Architectural Cast Stone:

1. Any current producer member of the Cast Stone Institute.

2. American Artstone.

3. Amcon Block.

4. Marcstone.

5. Stoneworks Architectural Precast.

6. Substitutions: See Section 01 60 00 - Product Requirements.

2.02 ARCHITECTURAL CAST STONE

A. Cast Stone: Architectural concrete product manufactured to simulate appearance of natural granite, complying with ASTM C1364.

1. Compressive Strength: As specified in ASTM C1364; calculate strength of pieces to be field cut at 80 percent of uncut piece.

2. Freeze-Thaw Resistance: Demonstrated by field experience.

3. Surface Texture: Fine grained texture, with no bugholes, air voids, or other surface blemishes visible from distance of 20 feet (6 meters).

4. Remove cement film from exposed surfaces before packaging for shipment.

B. Shapes: Provide shapes indicated on drawings.

1. Variation from Any Dimension, Including Bow, Camber, and Twist: Maximum of plus/minus 1/8 inch (3 mm) or length divided by 360, whichever is greater, but not more than 1/4 inch (6 mm).

2. Unless otherwise indicated on drawings, provide:

a. Wash or slope of 1:12 on exterior horizontal surfaces.

b. Drips on projecting components, wherever possible.

c. Raised fillets at back of sills and at ends to be built in.

C. Reinforcement: Provide reinforcement as required to withstand handling and structural stresses; comply with ACI 318.

2.03 MATERIALS

A. Portland Cement: ASTM C150.

1. For Mortar: Type I or II, except Type III may be used in cold weather.

B. Coarse Aggregate: ASTM C33, except for gradation; granite, quartz, or limestone.

C. Fine Aggregate: ASTM C33, except for gradation; natural or manufactured sands.

D. Admixtures: ASTM C494/C494M.

E. Water: Potable.

21041 - Monacan Health Clinic CAST STONE MASONRY IHS # NS21MA002H7 04 72 00 - 3 Addendum #3

F. Reinforcing Bars: ASTM A615/A615M deformed bars, galvanized or epoxy coated.

G. Steel Welded Wire Reinforcement: ASTM A185/A185M, galvanized or epoxy coated.

H. Embedded Anchors, Dowels, and Inserts: Type 304 stainless steel, of type and size as required for conditions.

I. Mortar: Portland cement-lime, ASTM C270, Type N; do not use masonry cement.

J. Sealant: As specified in Section 07 90 05.

K. Cleaner: General-purpose cleaner designed for removing mortar and grout stains, efflorescence, and other construction stains from new masonry surfaces without discoloring or damaging masonry surfaces; approved for intended use by cast stone manufacturer and by cleaner manufacturer for use on cast stone and adjacent masonry materials.

PART 3 EXECUTION

3.01 EXAMINATION

A. Examine construction to receive cast stone components. Notify Architect if construction is not acceptable.

B. Do not begin installation until unacceptable conditions have been corrected.

3.02 INSTALLATION

A. Install cast stone components in conjunction with masonry, complying with requirements of Section 04 20 00.

B. Mechanically anchor cast stone units indicated; set remainder in mortar.

C. Setting:

1. Drench cast stone components with clear, running water immediately before installation.

2. Set units in a full bed of mortar unless otherwise indicated.

3. Fill vertical joints with mortar.

4. Fill dowel holes and anchor slots completely with mortar or non-shrink grout.

D. Joints: Make all joints 3/8 inch (9.5 mm), except as otherwise detailed.

1. Rake mortar joints 3/4 inch (19 mm) for pointing.

2. Remove excess mortar from face of stone before pointing joints.

3. Point joints with mortar in layers 3/8 inch (9.5 mm) thick and tool to a slight concave profile.

4. Leave the following joints open for sealant:

a. Head joints in top courses, including copings, parapets, cornices, sills, and steps.

b. Joints in projecting units.

c. Joints between rigidly anchored units, including soffits, panels, and column covers.

d. Joints below lugged sills and stair treads.

e. Joints below ledge and relieving angles.

f. Joints labeled "expansion joint".

E. Sealant Joints: Install sealants as specified in Section 07 90 05.

F. Repairs: Repair chips and other surface damage noticeable when viewed in direct daylight at 20 feet (6 m).

1. Repair with matching touchup material provided by the manufacturer and in accordance with manufacturer's instructions.

2. Repair methods and results subject to Architect's approval.