097301 DKX Musmeum Hangar Reroof _ Maintenance Building Reroof Addendum No. 2 February 17, 2025.pdf

ADDENDUM NO. 2

Project: Metropolitan Knoxville Airport Authority Project No.: 097301 KNOXVILLE DOWNTOWN ISLAND AIRPORT February 17, 2025

REROOF MUSEUM HANGAR AND REROOF OF MAINTENANCE BUILDING

SEPARATE BID ITEM NO. 1: REROOF MUSEUM HANGAR

SEPARATE BID ITEM NO. 2: REROOF OF MAINTENANCE BUILDING

The following addendum items modify, change, delete from or add to, the requirements of the contract documents for this project. The articles contained in the addendum take precedence over the requirements of the previously published contract documents. Where any article of the contract specifications or any detail of the contract drawings is modified or any paragraph, subparagraph or clause thereof is modified or deleted by the articles contained in this addendum, the unaltered provisions of that article, paragraph, subparagraph, or clause shall remain in effect.

TABLE OF CONTENTS

V. TECHNICAL SPECIFICATIONS

DELETE Section 09 65 19 “Resilient Tile Flooring” it its entirety from the Table of Contents.

ADD Section 06 64 00 “Plastic Paneling” to the Table of Contents.

ADD Section 07 21 00 “Thermal Insulation” to the Table of Contents.

ADD Section 08 11 13 “Hollow Metal Doors and Frames” to the Table of Contents.

ADD Section 09 67 23 “Resinous Flooring” to the Table of Contents.

ADD Section 12 24 13 “Roller Window Shades” to the Table of Contents.

ADD Section 26 51 00 “Interior Lighting” to the Table of Contents.

VII. DRAWING INDEX

CHANGE the Drawing Index from:

TO:

097301 Page 2 of 4 February 17, 2025

I BIDDING REQUIREMENTS

General Information A. Pre-Bid Conference was held on Tuesday, February 11, 2025. A copy of the meeting agenda and the PLAYBACK comments from the meet ate attached at the end of Addendum No. 2 for the Bidders information only. PLAYBACK comments are the outcome and record of the events of the PRE-BID CONFERENCE held on the date indicated. The agenda or comments are not binding to the Contract. Only the Bidding/Contract documents and any comments included into the PROJECT by Addendum are considered binding.

B. The Bid Proposal Form, Price and Attachments can only be submitted when all the documents are uploaded to BidNetDirect. The Bidders may upload individual documents in advance without submitting the entire Proposal. For additional help or information contact BidNet's Vendor Support Department for any assistance at 800-835-4603, Option 2.

C. REQUEST FOR INFORMATION, CLARIFICATIONS, OR INTERPRETATION DURING BIDDING

1. None to report

D. SUBSTITUTION REQUESTS DURING BIDDING

1. None to report

II BIDDING REQUIREMENTS

A. BID PROPOSAL FORM AND PRICE–revised as follows:

CHANGE Paragraph 4. “Contract time, Subparagraph (b) sentence below where it is stroked out

(b) The Contractor will commence work with an adequate force, equipment and materials at the time stated in the Notice-to-Proceed (NTP) issued by the Owner to the Contractor, which will establish the Contract Time, and substantially complete all Work in accordance with the Contract Documents. The NTP shall be issued to the Contractor no later than (5) five days after final execution of Contracts by the parties, unless a different timeframe is mutually agreed to by the parties. The Contractor has (10) days after the issuance of a NTP to begin Work on-site.

TO the following:

(b) The Contractor will commence work with an adequate force, equipment and materials at the time stated in the Notice-to-Proceed (NTP) issued by the Owner to the Contractor, which will establish the Contract Time, and substantially complete all Work in accordance with the Contract Documents. The NTP shall be issued to the Contractor that is mutually agreed to by the parties, but for Separate Bid Item No. 1, no later than (10) days after final execution of the Contract. The Contractor has (10) days after the issuance of a NTP to begin Work on-site.

097301 Page 3 of 4 February 17, 2025

III CONTRACT FORMS

A. NOT APPLICABLE

IV GENERAL PROVISIONS

A. NOT APPLICABLE

V TECHNICAL SPECIFICATIONS

A. DELETE Section 09 65 19 “Resilient Tile Flooring” in its entirety.

B. ADD Section 06 64 00 “Plastic Paneling” herein attached at the end of Addendum No. 2.

C. ADD Section 07 21 00 “Thermal Insulation” herein attached at the end of Addendum No. 2

D. ADD Section 08 11 13 “Hollow Metal Doors and Frames” herein attached at the end of Addendum No. 2.

E. ADD Section 09 67 23 “Resinous Flooring” herein attached at the end of Addendum No. 2.

F. ADD Section 12 24 13 “Roller Window Shades” herein attached at the end of Addendum No. 2.

G. ADD Section 26 51 00 “Interior Lighting” herein attached at the end of Addendum No. 2.

VI APPENDICES

A. NOT APPLICABLE

VII DRAWINGS

A. Drawing Sheet A-101 “Bid Item 01 – Museum Hangar Roof Plan

1. Reissue entire Drawing Sheet A-101 “Bid Item 01 – Museum Hangar Roof Plan Addendum No. 2 dated February 17, 2025 herein attached at the end of Addendum No. 2.

ATTACHMENTS

A. TECHNCIAL SPECIFICATIONS

1. Section 09 65 19 “Resilient Tile Flooring” Addendum No. 2 Dated 2/17/2025

2. Section 06 64 00 “Plastic Paneling” Dated 2/17/2025

3. Section 07 21 00 “Thermal Insulation” Dated 2/17/2025

4. Section 08 11 13 “Hollow Metal Doors and Frames” Dated 2/17/2025

5. Section 09 67 23 “Resinous Flooring” Dated 2/17/2025

097301 Page 4 of 4 February 17, 2025

6. Section 12 24 13 “Roller Window Shades” Dated 2/17/2025

7. Section 26 51 00 “Interior Lighting” Dated 2.17/2025

B. PLAN SHEETS

1. Drawing Sheet A-101 “Bid Item 01 – Museum Hangar Roof Plan Addendum No. 2 dated February 17, 2025

C. REQUEST FOR INFORMATION, CLARIFICATIONS, OR INTERPRETATIONS DURING

BIDDING (RFI)

1. None this Addendum

D. SUBSTITUTION REQUESTS DURING BIDDING

1. None this Addendum

END ADDENDUM NO. 2

Metropolitan Knoxville Airport Authority Knoxville Downtown Island Airport (DKX)

REROOF MUSEUM HANGAR AND REROOF OF MAINTENANCE BUILDING

ADDENDUM NO. 2

SECTION 06 64 00 – PLASTIC PANELING PAGE 1 OF 3

SECTION 06 64 00 - PLASTIC PANELING

PART 1 - GENERAL

1. SUMMARY

a. Section Includes:

1) Fiberglass reinforced plastic sheet paneling.

b. Related Requirements:

1) Section 06 10 00 "Rough Carpentry" for wood furring for installing plastic paneling.

2) Section 09 29 00 "Gypsum Board" for gypsum board substrate.

2. ACTION SUBMITTALS

a. Product Data: For each type of product.

b. Samples: For plastic paneling and trim accessories, in manufacturer's standard sizes.

3. QUALITY ASSURANCE

a. Testing Agency: Acceptable to authorities having jurisdiction.

4. PROJECT CONDITIONS

a. Environmental Limitations: Do not deliver or install plastic paneling until spaces are enclosed and weathertight and temporary HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during the remainder of the construction period.

PART 2 - PRODUCTS

1. SOURCE LIMITATIONS

a. Obtain plastic paneling and trim accessories from single manufacturer.

2. PLASTIC SHEET PANELING.

a. Glass-Fiber-Reinforced Plastic Paneling: Gelcoat-finished, glass-fiber-reinforced plastic panels

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ADDENDUM NO. 2

SECTION 06 64 00 – PLASTIC PANELING PAGE 2 OF 3

complying with ASTM D5319. Panels are to be ASDA acceptable for incidental food contact.

1) Basis-of-Design Product - Subject to compliance with requirements, provide plastic panels as manufactured by Inpro Corporation, or a comparable product by one of the following

a) Merlite.

b) Crane Composites, Inc.

c) Nudo.

2) Surface-Burning Characteristics - As follows when tested by a qualified testing agency in accordance with ASTM E84. Identify products with appropriate markings of applicable testing agency.

a) Flame-Spread Index: 25 or less.

b) Smoke-Development Index: 450 or less.

3) Surface Finish - Smooth molded pebble texture.

4) Color - White.

3. ACCESSORIES

a. Trim Accessories: Manufacturer's standard one-piece vinyl extrusions designed to retain and cover edges of panels. Provide division bars, inside corners, outside corners, and caps as needed to conceal edges.

1) Color: Match panels.

b. Concealed Mounting Splines: Continuous, H-shaped aluminum extrusions designed to fit into grooves routed in edges of factory-laminated panels and to be fastened to substrate.

c. Adhesive: As recommended by plastic paneling manufacturer.

d. Sealant: Mildew-resistant, single-component, neutral-curing or acid-curing silicone sealant recommended by plastic paneling manufacturer and complying with requirements in Section 07 92 00 "Joint Sealants."

PART 3 - EXECUTION

1. EXAMINATION

a. Examine substrates and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

b. Proceed with installation only after unsatisfactory conditions have been corrected.

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ADDENDUM NO. 2

SECTION 06 64 00 – PLASTIC PANELING PAGE 3 OF 3

2. PREPARATION

a. Remove wallpaper, vinyl wall covering, loose or soluble paint, and other materials that might interfere with adhesive bond.

b. Prepare substrate by sanding high spots and filling low spots as needed to provide flat, even surface for panel installation.

c. Clean substrates of substances that could impair adhesive bond, including oil, grease, dirt, and dust.

d. Condition panels by unpacking and placing in installation space before installation according to manufacturer's written recommendations.

e. Lay out paneling before installing. Locate panel joints to provide equal panels at ends of walls not less than half the width of full panels.

1) Mark plumb lines on substrate at panel joint locations for accurate installation.

2) Locate panel joints to allow clearance at panel edges according to manufacturer's written instructions.

3. INSTALLATION

a. Install plastic paneling according to manufacturer's written instructions.

b. Install panels in a full spread of adhesive.

c. Install trim accessories with adhesive or staples. Do not fasten through panels.

d. Fill grooves in trim accessories with sealant before installing panels, and bed inside corner trim in a bead of sealant.

e. Maintain uniform space between panels and wall fixtures. Fill space with sealant.

f. Maintain snug fit between adjacent panels. Maintain uniform fit between panels and floors, ceilings, and fixtures. Fill space with sealant.

g. Remove excess sealant and smears as paneling is installed. Clean with solvent recommended by sealant manufacturer and then wipe with clean dry cloths until no residue remains.

END OF SECTION 06 64 00

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ADDENDUM NO. 2

SECTION 07 21 00 – THERMAL INSULATION PAGE 1 OF 3

SECTION 07 21 00 - THERMAL INSULATION

PART 1 - GENERAL

1. SUMMARY

a. Section Includes:

1) Glass-fiber blanket insulation.

b. Related Requirements:

1) Section 092900 "Gypsum Board" for sound attenuation blanket used as acoustic insulation.

2. ACTION SUBMITTALS

a. Product Data: For each type of product.

3. INFORMATIONAL SUBMITTALS

a. Product Test Reports: For each product, for tests performed by a qualified testing agency.

4. DELIVERY, STORAGE, AND HANDLING

a. Protect insulation materials from physical damage and from deterioration due to moisture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer's written instructions for handling, storing, and protecting during installation.

PART 2 - PRODUCTS

1. PERFORMANCE REQUIREMENTS

a. Surface-Burning Characteristics: Maximum flame-spread and smoke-developed indexes less than Class A, 25 and 450 when tested in accordance with ASTM E84.

b. Labeling: Provide identification of mark indicating R-value of each piece of insulation 12 inches and wider in width.

c. Thermal-Resistance Value (R-Value): R-value as indicated on Drawings in accordance with ASTM C518.

1) R-Value at <Insert location>: <Insert R-value>.

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ADDENDUM NO. 2

SECTION 07 21 00 – THERMAL INSULATION PAGE 2 OF 3

2. INSULATION FASTENERS

a. Insulation Fastener Accessories: Provide double-pointed weld pins, lagging pins, quilting pins, duct liner pins, insulation hangers, specialty washers, special caps, j-hooks, capacitor discharge annular weld pins, capacitor discharge acoustical lagging pins, and other accessory materials that are recommended in writing by insulation fastener manufacturer to produce complete insulation supports.

3. ACCESSORIES

a. Insulation for Miscellaneous Voids:

1) Glass-Fiber Insulation: ASTM C764, Type II, loose fill; with maximum flame-spread and smoke-developed indexes of 5, per ASTM E84.

2) Spray Polyurethane Foam Insulation: ASTM C1029, Type II, closed cell, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, per ASTM E84.

PART 3 - EXECUTION

1. PREPARATION

a. Clean substrates of substances that are harmful to insulation, including removing projections capable of puncturing insulation or vapor retarders, or those that interfere with insulation attachment.

2. INSTALLATION, GENERAL

a. Comply with insulation manufacturer's written instructions applicable to products, applications and applicable codes.

b. Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed to ice, rain, or snow at any time.

c. Install insulation with manufacturer's R-value label exposed after insulation is installed.

d. Extend insulation to envelop entire area to be insulated. Fit tightly around obstructions and fill voids with insulation. Remove projections that interfere with placement.

e. Provide sizes to fit applications and selected from manufacturer's standard thicknesses, widths, and lengths. Apply single layer of insulation units unless multiple layers are otherwise shown or required to make up total thickness or to achieve R-value.

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ADDENDUM NO. 2

SECTION 07 21 00 – THERMAL INSULATION PAGE 3 OF 3

3. INSTALLATION OF INSULATION IN FRAMED CONSTRUCTION

a. Blanket Insulation: Install in cavities formed by framing members in accordance with the following requirements:

1) Use insulation widths and lengths that fill the cavities formed by framing members. If more than one length is required to fill the cavities, provide lengths that will produce a snug fit between ends.

2) Place insulation in cavities formed by framing members to produce a friction fit between edges of insulation and adjoining framing members.

3) Maintain 3-inch clearance of insulation around recessed lighting fixtures not rated for or protected from contact with insulation.

4) Where glass-fiber blankets are indicated for sound attenuation above ceilings, install unfaced blanket insulation over ceiling area in thickness indicated. Where partitions occur, extend insulation up either side of partition.

5) For wood-framed construction, install blankets in accordance with ASTM C1320 and as follows:

a) With faced blankets having stapling flanges, lap blanket flange over flange of adjacent blanket to maintain continuity of vapor retarder once finish material is installed over it.

6) Vapor-Retarder-Faced Blankets: Tape joints and ruptures in vapor-retarder facings, and seal each continuous area of insulation to ensure airtight installation.

a) Interior Walls: Set units with facing placed toward areas of high humidity.

b. Miscellaneous Voids: Install insulation in miscellaneous voids and cavity spaces where required to prevent gaps in insulation using the following materials:

1) Glass-Fiber Insulation: Compact to approximately 40 percent of normal maximum volume equaling a density of approximately 2.5 lb/cu. ft..

2) Detailing Foam Insulation for Voids: Apply in accordance with manufacturer's written instructions.

END OF SECTION 07 21 00

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ADDENDUM NO. 2

SECTION 08 11 13 – HOLLOW METAL DOORS AND FRAMES PAGE 1 OF 5

SECTION 08 11 13 - HOLLOW METAL DOORS AND FRAMES

PART 1 - GENERAL

1. SUMMARY

a. Section Includes:

1) Interior standard steel doors and frames.

2. DEFINITIONS

a. Minimum Thickness: Minimum thickness of base metal without coatings in accordance with NAAMM-HMMA 803 or ANSI/SDI A250.8.

3. COORDINATION

a. Coordinate anchorage installation for hollow-metal frames. Furnish setting drawings, templates, and directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items with integral anchors. Deliver such items to Project site in time for installation.

b. Coordinate requirements for installation of door hardware.

4. ACTION SUBMITTALS

a. Product Data Submittals: For each product.

1) Include construction details, material descriptions, core descriptions, and finishes.

b. Shop Drawings: Include the following:

1) Elevations of each door type.

2) Details of doors, including vertical- and horizontal-edge details and metal thicknesses.

3) Frame details for each frame type, including dimensioned profiles and metal thicknesses.

4) Locations of reinforcement and preparations for hardware.

5) Details of each different wall opening condition.

6) Details of electrical raceway and preparation for electrified hardware, access control systems, and security systems.

7) Details of anchorages, joints, field splices, and connections.

8) Details of accessories.

9) Details of moldings, removable stops, and glazing.

c. Product Schedule: For hollow-metal doors and frames, prepared by or under the supervision of supplier, using same reference numbers for details and openings as those on Drawings. Coordinate

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ADDENDUM NO. 2

SECTION 08 11 13 – HOLLOW METAL DOORS AND FRAMES PAGE 2 OF 5

with final door hardware schedule.

5. DELIVERY, STORAGE, AND HANDLING

a. Deliver hollow-metal doors and frames palletized, packaged, or crated to provide protection during transit and Project-site storage. Do not use nonvented plastic.

1) Provide additional protection to prevent damage to factory-finished units.

b. Deliver welded frames with two removable spreader bars across bottom of frames, tack welded to jambs and mullions.

c. Store hollow-metal doors and frames vertically under cover at Project site with head up. Place on minimum 4-inch- high wood blocking. Provide minimum 1/4-inch space between each stacked door to permit air circulation.

PART 2 - PRODUCTS

1. PERFORMANCE REQUIREMENTS

a. Thermally Rated Door Assemblies: Provide door assemblies with U-factor of not more than 0.40 deg Btu/F x h x sq. ft. when tested in accordance with ASTM C1363 or ASTM E1423.

2. INTERIOR STANDARD STEEL DOORS AND FRAMES

a. Construct hollow-metal doors and frames to comply with standards indicated for materials, fabrication, hardware locations, hardware reinforcement, tolerances, and clearances, and as specified.

b. Heavy-Duty Doors and Frames: ANSI/SDI A250.8, Level 2; ANSI/SDI A250.4, Level B. At locations indicated in the Door and Frame Schedule on Drawings.

1) Doors:

a) Type: As indicated in the Door and Frame Schedule on Drawings.

b) Thickness: 1-3/4 inches.

c) Face: Metallic-coated steel sheet, minimum thickness of 0.042 inch.

d) Edge Construction: Model 1, Full Flush.

e) Edge Bevel: Provide manufacturer's standard beveled or square edges.

f) Core: Polyisocyanurate.

2) Frames:

a) Materials: Metallic-coated steel sheet, minimum thickness of 0.053 inch.

b) Construction: Knocked down.

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ADDENDUM NO. 2

SECTION 08 11 13 – HOLLOW METAL DOORS AND FRAMES PAGE 3 OF 5

3) Exposed Finish: Prime.

3. FRAME ANCHORS

a. Jamb Anchors:

1) Type: Anchors of minimum size and type required by applicable door and frame standard, and suitable for performance level indicated.

2) Quantity: Minimum of three anchors per jamb, with one additional anchor for frames with no floor anchor. Provide one additional anchor for each 24 inches of frame height above 7 feet.

b. Floor Anchors: Provide floor anchors for each jamb and mullion that extends to floor.

c. Floor Anchors for Concrete Slabs with Underlayment: Adjustable-type anchors with extension clips, allowing not less than 2-inch height adjustment. Terminate bottom of frames at top of underlayment.

d. Material: ASTM A879/A879M, Commercial Steel (CS), 04Z coating designation; mill phosphatized.

4. MATERIALS

a. Cold-Rolled Steel Sheet: ASTM A1008/A1008M, Commercial Steel (CS), Type B; suitable for exposed applications.

b. Hot-Rolled Steel Sheet: ASTM A1011/A1011M, Commercial Steel (CS), Type B; free of scale, pitting, or surface defects; pickled and oiled.

c. Metallic-Coated Steel Sheet: ASTM A653/A653M, Commercial Steel (CS), Type B.

d. Inserts, Bolts, and Fasteners: Hot-dip galvanized in accordance with ASTM A153/A153M.

e. Power-Actuated Fasteners in Concrete: Fastener system of type suitable for application indicated, fabricated from corrosion-resistant materials, with clips or other accessory devices for attaching hollow-metal frames of type indicated.

f. Mineral-Fiber Insulation: ASTM C665, Type I (blankets without membrane facing); consisting of fibers manufactured from slag or rock wool; with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively; passing ASTM E136 for combustion characteristics.

5. FABRICATION

a. Hollow-Metal Frames: Fabricate in one piece except where handling and shipping limitations require multiple sections. Where frames are fabricated in sections, provide alignment plates or angles at each joint, fabricated of metal of same or greater thickness as frames.

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ADDENDUM NO. 2

SECTION 08 11 13 – HOLLOW METAL DOORS AND FRAMES PAGE 4 OF 5

1) Door Silencers: Except on weather-stripped frames, drill stops to receive door silencers as follows. Keep holes clear during construction.

a) Single-Door Frames: Drill stop in strike jamb to receive three door silencers.

b. Hardware Preparation: Factory prepare hollow-metal doors and frames to receive templated mortised hardware, and electrical wiring; include cutouts, reinforcement, mortising, drilling, and tapping in accordance with ANSI/SDI A250.6, the Door Hardware Schedule on Drawings, and templates.

1) Reinforce doors and frames to receive nontemplated, mortised, and surface-mounted door hardware.

2) Comply with BHMA A156.115 for preparing hollow-metal doors and frames for hardware.

6. STEEL FINISHES

a. Prime Finish: Clean, pretreat, and apply manufacturer's standard primer.

1) Shop Primer: Manufacturer's standard, fast-curing, lead- and chromate-free primer complying with ANSI/SDI A250.10; recommended by primer manufacturer for substrate;

compatible with substrate and field-applied coatings despite prolonged exposure.

PART 3 - EXECUTION

1. PREPARATION

a. Remove welded-in shipping spreaders installed at factory. Restore exposed finish by grinding, filling, and dressing, as required to make repaired area smooth, flush, and invisible on exposed faces. Touch up factory-applied finishes where spreaders are removed.

b. Drill and tap doors and frames to receive nontemplated, mortised, and surface-mounted door hardware.

2. INSTALLATION

a. Install hollow-metal doors and frames plumb, rigid, properly aligned, and securely fastened in place. Comply with approved Shop Drawings and with manufacturer's written instructions.

b. Hollow-Metal Frames: Comply with ANSI/SDI A250.11.

1) Set frames accurately in position; plumbed, aligned, and braced securely until permanent anchors are set. After wall construction is complete, remove temporary braces without damage to completed Work.

a) Where frames are fabricated in sections, field splice at approved locations by welding face joint continuously; grind, fill, dress, and make splice smooth, flush, and invisible

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ADDENDUM NO. 2

SECTION 08 11 13 – HOLLOW METAL DOORS AND FRAMES PAGE 5 OF 5

on exposed faces. Touch-up finishes.

b) Install frames with removable stops located on secure side of opening.

2) Floor Anchors: Secure with postinstalled expansion anchors.

a) Floor anchors may be set with power-actuated fasteners instead of postinstalled expansion anchors if so indicated and approved on Shop Drawings.

3) Solidly pack mineral-fiber insulation inside frames.

4) Installation Tolerances: Adjust hollow-metal frames to the following tolerances:

a) Squareness: Plus or minus 1/16 inch, measured at door rabbet on a line 90 degrees from jamb perpendicular to frame head.

b) Alignment: Plus or minus 1/16 inch, measured at jambs on a horizontal line parallel to plane of wall.

c) Twist: Plus or minus 1/16 inch, measured at opposite face corners of jambs on parallel lines, and perpendicular to plane of wall.

d) Plumbness: Plus or minus 1/16 inch, measured at jambs at floor.

c. Hollow-Metal Doors: Fit and adjust hollow-metal doors accurately in frames, within clearances specified below.

1) Non-Fire-Rated Steel Doors: Comply with ANSI/SDI A250.8.

3. FIELD QUALITY CONTROL

a. Repair or remove and replace installations where inspections indicate that they do not comply with specified requirements.

b. Reinspect repaired or replaced installations to determine if replaced or repaired door assembly installations comply with specified requirements.

4. REPAIR

a. Prime-Coat Touchup: Immediately after erection, sand smooth rusted or damaged areas of prime coat and apply touchup of compatible air-drying, rust-inhibitive primer.

b. Metallic-Coated Surface Touchup: Clean abraded areas and repair with galvanizing repair paint in accordance with manufacturer's written instructions.

c. Touchup Painting: Cleaning and touchup painting of abraded areas of paint are specified in painting Sections.

END OF SECTION 08 11 13

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ADDENDUM NO. 2

SECTION 09 67 23 – RESINIOUS FLOORING PAGE 1 OF 8

SECTION 09 67 23 - RESINOUS FLOORING

PART 1 - GENERAL

1. SUMMARY

a. Section Includes:

1) Resinous flooring coating system for concrete floors.

2) Integral cove base accessories.

2. PREINSTALLATION MEETINGS

a. Preinstallation Conference: Conduct conference at Project site.

1) Review manufacturer's written instructions for substrate preparation and environmental conditions affecting resinous flooring installation.

2) Review details of integral cove bases.

3) Review manufacturer's written instructions for installing resinous flooring systems.

4) Review protection measures for adjacent construction and installed flooring, floor drainage requirements, curbs, base details, and so forth.

3. DEFINITIONS

a. Definitions of Painting Terms: ASTM D16, unless otherwise specified.

b. Dry Film Thickness (DFT): Thickness of a coat of paint in fully cured state measured in mils (1/1000-inch).

4. ACTION SUBMITTALS

a. Product Data: For each type of product.

1) Include manufacturer's technical data, installation instructions, and recommendations for each resinous flooring component required.

b. Samples: For each resinous floor system required and for each color and texture specified, 6 inches square in size, applied to a rigid backing by Installer for this Project.

5. INFORMATIONAL SUBMITTALS

a. Qualification Data: For Installer.

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ADDENDUM NO. 2

SECTION 09 67 23 – RESINIOUS FLOORING PAGE 2 OF 8

b. Material Certificates: For each resinous flooring component.

c. Material Test Reports: For each resinous flooring system, by a qualified testing agency.

d. Field quality-control reports.

6. CLOSEOUT SUBMITTALS

a. Maintenance Data: For resinous flooring to include in maintenance manuals.

7. QUALITY ASSURANCE

a. Manufacturer's Qualifications:

1) Specialize in manufacturer of coatings with a minimum of 5-years successful experience.

2) Able to demonstrate successful performance on comparable projects.

3) Single Source Responsibility: Coatings and coating application accessories shall be products of a single manufacturer.

b. Installer Qualifications: An authorized representative who is trained and approved by manufacturer.

1) Engage an applicator who is certified in writing by resinous flooring manufacturer as qualified to apply resinous flooring systems indicated.

2) Experienced in application of specified coatings for a minimum of 5-years on projects of similar size and complexity to this Work.

3) Applicator's Personnel: Employ persons trained for application of specified coatings.

8. DELIVERY, STORAGE, AND HANDLING

a. Deliver materials in original packages and containers, with seals unbroken, bearing manufacturer's labels indicating brand name and directions for storage and mixing with other components.

b. Store materials in a clean dry area and within temperature range in accordance with manufacturer's instructions.

c. Keep containers sealed until ready for use.

d. Do not use materials beyond manufacturer's shelf-life limits.

e. Handling: Protect materials during handling and application to prevent damage or contamination.

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ADDENDUM NO. 2

SECTION 09 67 23 – RESINIOUS FLOORING PAGE 3 OF 8

9. FIELD CONDITIONS

a. Environmental Limitations: Comply with resinous flooring manufacturer's written instructions for substrate temperature, ambient temperature, moisture, ventilation, and other conditions affecting resinous flooring installation.

b. Lighting: Provide permanent lighting or, if permanent lighting is not in place, simulate permanent lighting conditions during resinous flooring installation.

c. Close spaces to traffic during resinous flooring installation and for 24 hours after installation unless manufacturer recommends a longer period.

d. Ventilation: Provide ventilation during coating evaporation stage in confined or enclosed areas in accordance with manufacturer's instructions.

e. Protect work areas from excessive dust and airborne contaminates during coating application and curing.

PART 2 - PRODUCTS

1. PERFORMANCE REQUIREMENTS

a. Flammability: Self-extinguishing in accordance with ASTM D635.

2. RESINOUS FLOORING <Insert drawing designation>

a. Resinous Flooring System: Abrasion-, impact-, and chemical resistant, aggregate-filled, resin-based monolithic floor surfacing designed to produce a seamless floor and integral cove base.

1) Basis-of-Design Product: Subject to compliance with requirements, provide Tnemec Company, Inc., or comparable product by one of the following:

a) Everlast Epoxy Systems, Inc.

b) Laticrete International, Inc.

c) Sika Corporation; Flooring.

b. Source Limitations: Obtain primary resinous flooring materials, including primers, resins, hardening agents, grouting coats, and topcoats, from single source from single manufacturer. Obtain secondary materials, including patching and fill material, joint sealant, and repair materials, of type and from manufacturer recommended in writing by manufacturer of primary materials.

c. System Characteristics:

1) Color and Pattern: Match Architect's sample.

2) Wearing Surface: Light textured for slip resistence..

3) Overall System Thickness: 1/8 inchminimum, unless indicated otherwise.

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d. Primer: Type recommended in writing by resinous flooring manufacturer for substrate and resinous flooring system indicated.

e. Patching and Fill Material: Resinous product of or approved by resinous flooring manufacturer and recommended in writing by manufacturer for installation indicated.

f. Body Coats: For 1st and 2nd Lifts, Tnemec 237 Power-Tread. Broadcast 30/50 mesh silica sand to refusal. Double broadcast 1/8."

1) Resign: Epoxy.

2) Type: Pigmented.

3) Installation Method: Self-leveling slurry, troweled or screeded.

4) Number of Coats: Two.

5) Thickness of Coats: 2.0 - 3.0 mils DFT.

g. Grout Coat: Tnemec 237-Color, Tnemec-Glaze.

1) Thickness of Coat: 16 - 20 mils DFT.

h. Topcoats: Sealing or finish coats.

1) Products: Tnemec 248-Color, Everthane with 821 colorant.

2) Thickness of Coats - 2.0 - 3.0 mils DFT.

3. INTEGRAL COVE BASE ACCESSORIES

a. Installation Adhesive: As recommended in writing by accessory manufacturer.

1) Adhesives: Do not use adhesives that contain urea formaldehyde.

PART 3 - EXECUTION

1. EXAMINATION

a. Examine substrates, with Installer present, for compliance with requirements for maximum moisture content and other conditions affecting performance of the Work.

1) Verify that finishes of substrates comply with tolerances and other requirements specified in other Sections and that substrates are free of cracks, ridges, depressions, scale, and foreign deposits that might interfere with adhesion of resinous flooring systems.

2) Ensure surfaces are clean, free of oil, grease, dirt, dust, and other contaminants.

b. Proceed with installation only after unsatisfactory conditions have been corrected.

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2. PREPARATION

a. Prepare and clean substrates in accordance with resinous flooring manufacturer's written instructions for substrate indicated to ensure adhesion.

b. Concrete Substrates: Provide sound concrete surfaces free of laitance, glaze, efflorescence, curing compounds, form-release agents, dust, dirt, grease, oil, and other contaminants incompatible with resinous flooring.

1) Roughen concrete substrates as follows:

a) Shot-blast surfaces with an apparatus that abrades the concrete surface, contains the dispensed shot within the apparatus, and recirculates the shot by vacuum pickup.

b) Comply with requirements in SSPC-SP 13/NACE No. 6, with a Concrete Surface Profile of 3 or greater in accordance with ICRI Technical Guideline No. 310.2R, unless manufacturer's written instructions are more stringent.

2) Repair damaged and deteriorated concrete in accordance with resinous flooring manufacturer's written instructions.

3) Moisture Testing: Perform tests so that each test area does not exceed 200 sq. ft., and perform no fewer than three tests in each installation area and with test areas evenly spaced in installation areas.

a) Anhydrous Calcium Chloride Test: ASTM F1869. Proceed with installation only after substrates have maximum moisture-vapor-emission rate of 3 lb of water/1000 sq. ft.

in 24 hours.

b) Relative Humidity Test: Using in-situ probes, ASTM F2170. Proceed with installation only after substrates have a maximum 75 percent relative humidity level measurement.

4) Alkalinity and Adhesion Testing: Perform tests recommended in writing by resinous flooring manufacturer. Proceed with installation only after substrate alkalinity is not less than 6 or more than 8 pH unless otherwise recommended in writing by flooring manufacturer,

c. Patching and Filling: Use patching and fill material to fill holes and depressions in substrates in accordance with manufacturer's written instructions.

1) Control Joint Treatment: Treat control joints and other nonmoving substrate cracks to prevent cracks from reflecting through resinous flooring in accordance with manufacturer's written instructions.

d. Level protrusions and mortar splatter.

e. Resinous Materials: Mix components and prepare materials in accordance with resinous flooring manufacturer's written instructions.

3. INSTALLATION

a. Apply components of resinous flooring system in accordance with manufacturer's written

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instructions to produce a uniform, monolithic wearing surface of thickness specified.

1) Coordinate installation of components to provide optimum adhesion of resinous flooring system to substrate, and optimum intercoat adhesion.

2) Cure resinous flooring components in accordance with manufacturer's written instructions.

Prevent contamination during installation and curing processes.

3) Mix and thin coatings, including multi-component materials, in accordance with manufacturer's instructions.

4) Keep containers closed when not in use to avoid contamination.

5) Do not use mixed coatings beyond pot life limits.

6) Use application equipment, tools, pressure settings, and techniques un accordance with

Manufacturer's instructions.

7) Uniformly apply coatings at spreading rate required to achieve specified DFT.

8) Apply coatings to be free of film characteristics or defects that would adversely affect performance of appearance or coating systems.

9) Expansion and Isolation Joint Treatment: At substrate expansion and isolation joints, comply with resinous flooring manufacturer's written instructions.

b. Primer: Apply primer over prepared substrate at spreading rate recommended in writing by manufacturer.

c. Field-Formed Integral Cove Base: Apply cove base mix to wall surfaces before applying flooring coats. Apply in accordance with manufacturer's written instructions and details, including those for taping, mixing, priming, troweling, sanding, and topcoating of cove base. Round internal and external corners.

1) Integral Cove Base: 4 inches high.

d. Self-Leveling Body Coats: Apply self-leveling slurry body coats in thickness specified for flooring system.

1) Aggregates: Broadcast aggregates at rate recommended in writing by manufacturer. After resin is cured, remove excess aggregates to provide surface texture indicated.

e. Troweled or Screeded Body Coats: Apply troweled or screeded body coats in thickness specified for flooring system. Hand or power trowel and grout to fill voids. When body coats are cured, remove trowel marks and roughness using method recommended in writing by manufacturer.

f. Grout Coat: Apply grout coat to fill voids in surface of final body coat.

g. Topcoats: Apply topcoats in number indicated for flooring system specified, at spreading rates recommended in writing by manufacturer, and to produce wearing surface specified.

h. Exposed Perimeter:

1) All exposed perimeter edges of the broadcast overlay, including doorways, traffic aisle sides, drains, etc. must be saw cut. Areas that cannot be reached with the saw or are difficult to saw cut shall be chipped.

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2) Saw cut shall be a minimum of 1/4-inch deep and 1/4-inch wide.

3) Prime saw cut areas with Tnemec 237 Power-Tread.

4) Install flooring so that it folds into saw cut.

i. Rolled Radius Coving:

1) Install coves prior to installation of special flooring.

2) Apply prime coat of Tnemec Series 201 to all surfaces scheduled to receive coving.

3) Install cove flush with outed edge of J-Strip or terminating strip.

4) Apply coving sealant bead to top of J-Strip or termination strip and tool flush to provide a smooth and uniform appearance, as indicated on Drawings.

5) Cut coves as required for joints.

4. REPAIR

a. Materials and Surfaces Not Scheduled to be Coated: Repair or replace damaged materials and surfaces not scheduled to be coated.

b. Damaged Coatings: Touch-up or repair damaged costings. Touch-up of minor damage shall be acceptable where result is not visibly different from adjacent surfaces. Recoat entire surface where touch-up result in visibly different, either in sheen, texture, or color.

c. Coating Defects: Repair in accordance with manufacturer's instructions coatings that exhibit film characteristics or defects that would adversely affect performance or appearance of coating systems.

5. FIELD QUALITY CONTROL

a. Material Sampling: Owner may, at any time and any number of times during resinous flooring installation, require material samples for testing for compliance with requirements.

1) Contractor will engage an independent testing agency to take samples of materials being used. Material samples will be taken, identified, sealed, and certified in presence of Contractor.

2) Testing agency will test samples for compliance with requirements, using applicable referenced testing procedures or, if not referenced, using testing procedures listed in manufacturer's product data.

a) Verify coatings and other materials are as specified.

b) Verify surface preparation and application are as specified.

c) Verify DFT of each coat and total DFT of each coating system are as specified using wet film and dry film gauges.

d) Coating Defects: Check coatings for film characteristics or defects that would adversely affect performance or appearance of coating systems.

e) Report:

1 Submit written reports describing inspections made and actions taken to

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correct nonconforming work.

2 Report nonconforming work not corrected.

3 Submit copies of report to Architect and Contractor.

3) If test results show applied materials do not comply with specified requirements, pay for testing, remove noncomplying materials, prepare surfaces coated with unacceptable materials, and reinstall flooring materials to comply with requirements.

b. Core Sampling: At Architect's direction and at locations designated by Architect, take one core sample per 1000 sq. ft. of resinous flooring, or portion of, to verify thickness. For each sample that fails to comply with requirements, take two additional samples. Repair damage caused by coring.

Correct deficiencies in installed flooring as indicated by testing.

6. CLEANING

a. Remove temporary coverings and protection of surrounding areas and surfaces.

7. PROTECTION

a. Protect resinous flooring from damage and wear during the remainder of construction period. Use protective methods and materials, including temporary covering, recommended in writing by resinous flooring manufacturer.

b. Repair deficiencies in coating systems as determined by Architect in accordance with manufacturer's instructions.

END OF SECTION 09 67 23

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SECTION 12 24 13 – ROLLER WINDOW SHADES PAGE 1 OF 7

SECTION 12 24 13 - ROLLER WINDOW SHADES

PART 1 - GENERAL

1. SUMMARY

a. Section Includes:

1) Manually operated, single-roller shades.

b. Related Requirements:

1) Section 061000 "Rough Carpentry" for wood blocking and grounds for mounting roller shades and accessories.

2) Section 079200 "Joint Sealants" for sealing the perimeters of installation accessories for light-blocking shades with a sealant.

2. ACTION SUBMITTALS

a. Product Data:

1) For each type of product.

a) Include construction details, material descriptions, dimensions of individual components and profiles, and finishes.

b. Shop Drawings:

1) Show fabrication and installation details for roller shades, including shadeband materials, their orientation to rollers, and their seam and batten locations.

c. Samples for Initial Selection: Manufacturer's standard color sheets, showing full range of available colors for each type and color of shadeband material and for each type of exposed finish.

1) Include Samples of accessories involving color selection.

d. Samples for Verification: Actual sample of finished products for each type of roller shade including actual shadeband material and installation accessories.

1) Shadeband Material: Not less than 10-inches square. Mark interior face of material if applicable.

2) Installation Accessories: Full-size unit, not less than 10-inches long.

e. Product Schedule: For roller shades. Use same designations indicated on Drawings.

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3. INFORMATIONAL SUBMITTALS

a. Product Certificates: For each type of shadeband material.

b. Product Test Reports: For each type of shadeband material, for tests performed by a qualified testing agency ormanufacturer and witnessed by a qualified testing agency.

c. Qualification Statements: For Installer.

4. CLOSEOUT SUBMITTALS

a. Operation and Maintenance Data: For roller shades to include in mainterance manuals.

5. MAINTENANCE MATERIAL SUBMITTALS

a. Extra Stock Material: Furnish extra materials, from the same production run, to Owner that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1) Roller Shades: Full-size units equal to 3 percent of quantity installed for each size, color, and shadeband material indicated, but no fewer than two units. Include mounting accessories.

6. QUALITY ASSURANCE

a. Installer Qualifications: Fabricator of products.

7. MOCKUPS

a. Install one of each type of roller window shade as a mockup to verify selections made under Sample submittals, to demonstrate aesthetic effects, and to set quality standards for fabrication and installation.

1) Approval of mockups does not constitute approval of deviations from the Contract Documents contained in mockups unless Owner specifically approves such deviations by Change Order.

2) Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.

8. DELIVERY, STORAGE, AND HANDLING

a. Deliver roller shades in factory packages, marked with manufacturer, product name, and location of installation using same designations indicated on Drawings.

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9. FIELD CONDITIONS

a. Environmental Limitations: Do not install roller shades until construction and finish work in spaces, including painting, is complete and dry and ambient temperature and humidity conditions are maintained at the levels indicated for Project when occupied for its intended use.

b. Field Measurements: Where roller shades are indicated to fit to other construction, verify dimensions of other construction by field measurements before fabrication and indicate measurements on Shop Drawings. Allow clearances for operating hardware of operable glazed units through entire operating range. Notify Architect of installation conditions that vary from Drawings. Coordinate fabrication schedule with construction progress to avoid delaying the Work.

10. WARRANTY

a. Special Warranty: Manufacturer agrees to repair or replace components of products that fail in materials or workmanship within specified warranty period.

1) Failures include, but are not limited to, the following:

a) Defects in materials and workmanship beyond normal wear and tear.

b) Faulty operation of operating system components.

c) Deterioration of fabric beyond normal use.

2) Warranty Period:

a) Roller Window Shades: 25 year(s) from date of Substantial Completion.

b) Fabric: 25 year(s) from date of Substantial Completion.

PART 2 - PRODUCTS

1. SOURCE LIMITATIONS

a. Obtain roller shades from single source from single manufacturer.

2. PERFORMANCE REQUIREMENTS

a. Window Covering Safety Standard: Provide roller window shades that comply with WCMA A100.1.

b. Fire Performance: Tested in accordance with and meeting the flame propagation performance criteria of Test 1 or Test 2, as appropriate, of NFPA 701; testing by a qualified testing agency.

Identify products with appropriate markings of applicable testing agency.

c. Accessibility Standards: Comply with applicable provisions in the USDOJ's "2010 ADA Standards for Accessible Design" and ICC A117.1 for roller window shades designated as accessible.

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3. MANUFACTURERS

a. Basis-of-Design Products: Subject to compliance with requirements, provide products by MechoShade, or approved equal products by one of the following

1) Draper, Inc.

2) Hunter Douglas Contract.

3) Lutron Electronics Co., Inc.

4. MANUAL OPERATION

a. Manual Corded Operation:

1) Chain-and-Clutch Operating Mechanisms: With continuous-loop bead chain and clutch that stops shade movement when bead chain is released; permanently adjusted and lubricated.

a) Bead Chains: Stainless steel bead chain with WCMA A100.1 compliant tension device installed on roller window shade by manufacturer and mounted on jamb, or as otherwise indicated on Drawings.

1 Loop Length: Full length of roller shade.

2 Limit Stops: Provide upper and lower ball stops.

b) Spring Lift-Assist Mechanisms: Manufacturer's standard for balancing roller shade weight and for lifting heavy roller shades.

1 Provide for shadebands that weigh more than 10 lb or for shades as recommended by manufacturer, whichever criterion is more stringent.

b. Rollers: Corresion-resistent steel or extruded-aluminum tubes of diameters and wall thicknesses required to accommodate operating mechanisms and weights and widths of shadebands indicated without deflection. Provide with permanently lubricated drive-end assemblies and idle-end assemblies designed to facilitate removal of shadeband for service.

1) Roller Drive-End Location: Right side of interior face of shade.

2) Direction of Shadeband Roll: Regular, from back (exterior face) of roller.

3) Shadeband-to-Roller Attachment: Manufacturer's standard method.

c. Mounting Hardware: Brackets or endcaps, corrosion resistant and compatible with roller assembly, operating mechanism, installation accessories, and mounting location and conditions indicated.

d. Roller-Coupling Assemblies: Coordinated with operating mechanism and designed to join up to three inline rollers into a multiband shade that is operated by one roller-drive-end assembly.

e. Shadebands:

1) Shadeband Material: As specified herein.

2) Shadeband Bottom (Hem) Bar: Steel or extruded aluminum.

a) Type: Enclosed in sealed pocket of shadeband material.

b) Color and Finish: As selected by Architect from manufacturer's full range.

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f. Installation Accessories:

1) Front Fascia: Aluminum extrusion that conceals front and underside of roller and operating mechanism and attaches to roller endcaps without exposed fasteners.

a) Shape: L-shaped.

b) Height: Manufacturer's standard height required to conceal roller and shadeband assembly when shade is fully open, but not less than 4-inches.

2) Exposed Headbox: Rectangular, extruded-aluminum enclosure including front fascia, top and back covers, endcaps, and removable bottom closure.

a) Height - Manufacturer's standard height required to enclose roller and shadeband assembly when shade is fully open, but not less than 4-inches.

3) Endcap Covers: To cover exposed endcaps.

4) Recessed Shade Pocket: Rectangular, extruded-aluminum enclosure designed for recessed ceiling installation; with front, top, and back formed as…