RFB933400-01 - DPS Post 9 Interior Renovations - Addendum #2.pdf

Project #9334.00 Addendum #02 Page 1 of 31

ADDENDUM NO. 2

Date: 03/17/2023

Project Name: DPS P09 Interior Renovation

DAS RFB #: 933400-01

DAS Project #: 9334.00

PROPOSALS DUE: 03/30/2023

The original Project Manual and Drawings for the project noted above are amended as noted in this

Addendum. Included in this Addendum are Divisions 02, 06, 07, 09, 26.

Please review all sheets and incorporate them into your set of Contract Documents.

The receipt of this Addendum shall be acknowledged by inserting its number and date in the space provided on the Bid Form.

This Addendum consists of:

General Items:

1. Divisions 02, 06, 07, 09, 26 (29 Pages)

DPS P09 Interior Renovation 9334.00

SELECTIVE STRUCTURE DEMOLITION

02 4119 - 1

SECTION 02 4119

SELECTIVE STRUCTURE DEMOLITION

PART 1 GENERAL

1.1 SUMMARY

A. Related Documents:

1. Drawings and general provisions of the Contract apply to this Section.

2. Review these documents for coordination with additional requirements and information that apply to work under this Section.

B. Section Includes: Selective demolition as follows:

1. Remove architectural, electrical materials and equipment as indicated or required for new construction.

2. Fire sprinkler and domestic water mains shall remain in operation.

3. Refer to Article 3.05 Schedules for special requirements for selected items.

4. Remove materials from site, and dispose of legally.

5. Disconnect, remove, cap and identify utilities for later reconnection.

C. Related Sections:

1. Division 01 Section "Submittal Procedures."

2. Division 01 Section "Construction Waste Management".

1.2 SUBMITTALS

A. Submit under provisions of Division 01 Section "Submittal Procedures."

B. Shop Drawings: Indicate removal sequence and location of salvageable items.

C. Project Record Documents: Accurately record locations of capped utilities.

1.3 QUALITY ASSURANCE

A. Regulatory Requirements:

1. Comply with requirements of applicable codes, rules and regulations.

2. Obtain required permits from City of Cedar Falls.

3. Do not close or obstruct roadways or sidewalks without permits.

4. Maintain building and room egress and access at all times. Do not reduce required egress width to exits.

5. Minimize interference with corridors, exits, sidewalks, roadways and public thoroughfares.

6. Comply with applicable procedures if hazardous or contaminated materials are discovered or suspected.

B. Hazardous Materials Remediation Work:

1. Perform lead and asbestos work in accordance with requirements of local, state, and Federal regulations for lead and asbestos in construction, including but not limited to Title 8 CCR 1529 and Title 8 CCR 1532.1, and 29 CFR 1926.1101 and 29 CFR 1926.62.

1.4 PROJECT CONDITIONS

A. Protect adjacent work to remain, and items to be turned over to Owner , from damage.

B. Existing Conditions:

1. If lead, asbestos or other hazardous materials are found or suspected, immediately stop work in the suspected area and advise the Owner and Architect. Do not recommence work in the area until advised by the Owner that the area has been cleared for work.

1.5 SEQUENCING

02 4119 - 2

A. Submit schedule indicating proposed sequence of operations for selective demolition work to Owner for review prior to start of work. Include coordination for shutoff, capping, and continuation of utility services, and details for dust and noise control.

1. Coordinate the scheduling of work of Section with the work of other sections.

PART 2 NOT USED

PART 3 EXECUTION

3.1 EXAMINATION

A. Inspect and verify the existing conditions and become familiar with the extent of the Work.

B. Examine the site to determine proper access within the limitations of the Contract. Conduct operations so as not to interfere with adjacent roads, driveways, walks, buildings, corridors, means of access and egress, and work areas.

3.2 PREPARATION

A. Interfaces With Other Work: Coordinate extent of selective demolition work with limits of existing work to remain, and with demolition and modification requirements shown on the Drawings.

B. Protection:

1. Protect existing materials, appurtenances and equipment which are not to be demolished.

Existing materials, appurtenances and equipment, building exterior and interior, and landscaping altered or damaged during demolition work shall be repaired or replaced by the Subcontractor to match existing undisturbed conditions at no additional cost to the Owner.

2. Prevent movement of structure; provide bracing and shoring as required.

3. Provide and maintain temporary weather protection during interval between demolition and removal of existing construction on exterior surfaces and installation of new construction to ensure that no water leakage or damage, or wind damage occurs to structure or interior areas of existing building.

4. Provide and maintain temporary barriers and security devices at doorways.

5. Use periodic light water mist, temporary enclosures, and other suitable methods to limit dust and dirt. Comply with applicable environmental protection regulations.

6. Maintain path of travel for debris removal dust free and clean at all times.

7. Maintain ventilation system dust free at all times.

8. Cover and protect windows and walls that are adjacent to areas to be demolished.

9. Protect smoke alarms and fire sprinklers from dust intrusion.

10. Maintain parking areas, driveways, exterior walkways, exit paths, and landscaping in a clean, undisturbed condition. Any debris caused by selective demolition work shall be removed each day.

C. Field verify the exact location of existing concealed utilities. Use caution if working in or about concealed or exposed utilities.

1. Disconnect, remove, and cap designated utility lines within demolition areas. Mark locations of disconnected utilities. Identify utilities and indicate capping locations on Project Record Documents.

3.3 EXECUTION

A. Minimize interference with adjacent occupied building areas, materials and equipment.

B. Remove items in an orderly and careful manner.

02 4119 - 3

1. Remove only as much material as is required for new construction work to be conveniently performed.

2. Cut surfaces so as to minimize the amount of new surfaces required to match existing.

Make cuts plumb, true, level and straight, or as otherwise required to provide proper surfaces to receive new work and repairs.

3. Cut asphalt and concrete by power saw in neat, sharp straight lines. Repair broken edges or as directed by the Owner.

C. Remove miscellaneous abandoned appurtenances that will be exposed to view, unless indicated otherwise.

D. Investigate and measure the nature and extent of unanticipated items that conflict with intended function or design. Submit written report with accurate detailed information to the Owner and Architect. While awaiting instructions from the Owner, rearrange selective demolition schedule as necessary to continue overall job progress without delay.

E. Eliminate dust. Install dust barriers as required to keep dust out of corridors and adjacent areas. Use walkoff mats designed to remove dust at the corridor side of doors to rooms where demolition work is being done.

1. Activities which generate silica dust, such as concrete saw cutting, jackhammering, chipping, or abrasive blasting, shall incorporate engineering controls to eliminate visible emissions.

2. Do not use silica sand or other substances containing more than 1 per cent crystalline silica as abrasive blasting material

3. Use concrete and masonry saws that provide water to the blade.

4. Prevent human exposure to dust using methods such as removing dust with water, high efficiency particulate air (HEPA) filters, and wet sweeping. Do not use compressed air or dry sweeping.

F. Stop work and notify the Owner immediately if structure or other items to remain appear to be endangered. Do not resume work until directed by the Owner.

G. Do not disrupt service to existing fire sprinkler lines. If disruption becomes necessary, coordinate with the Owner..

H. Remove, store and protect materials to be re-installed or retained so as to prevent damage.

I. Remove and promptly dispose of vermin infested materials.

3.4 DISPOSAL AND CLEANUP

A. Material removed under this Contract which is not to be salvaged or reused in the Project shall become the property of the Contractor and shall be promptly removed from the job site. Do not store or permit debris to accumulate at the site.

B. Unless indicated otherwise, remove demolished material from site in a timely manner. Dispose of materials legally off site. Do not burn or bury materials on site.

C. Upon completion, clean the entire area of demolition residue satisfactory for the continuation of the Work. Remove temporary work.

3.5 SCHEDULES

A. Remove the following materials from the site and dispose of legally.

1. Demolition materials.

END OF SECTION

ROUGH CARPENTRY

06 1000 - 1

SECTION 06 1000

ROUGH CARPENTRY

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Non-structural dimension lumber framing.

B. Concealed wood blocking, nailers, and supports.

C. Miscellaneous wood nailers, furring, and grounds.

1.2 REFERENCE STANDARDS

A. ASTM D3498 - Standard Specification for Adhesives for Field-Gluing Wood Structural Panels

(Plywood or Oriented Strand Board) to Wood Based Floor System Framing 2018a.

B. ASTM E2178 - Standard Test Method for Air Permeance of Building Materials 2013.

C. ASTM E2357 - Standard Test Method for Determining Air Leakage of Air Barrier Assemblies

2018.

D. ASTM E96/E96M - Standard Test Methods for Water Vapor Transmission of Materials 2016.

E. ICC-ES AC310 - Acceptance Criteria for Water-resistive Membranes Factory-bonded to Wood-based Structural Sheathing, Used as Water-Resistive Barriers 2008, with Editorial Revision (2015).

F. PS 1 - Structural Plywood 2009.

G. PS 2 - Performance Standard for Wood-Based Structural-Use Panels 2010.

H. PS 20 - American Softwood Lumber Standard 2015.

1.3 SUBMITTALS

A. See Section 01 3000 - Administrative Requirements, for submittal procedures.

B. Product Data: Provide technical data on insulated sheathing, wood preservative materials and application instructions.

C. Manufacturer's Certificate: Certify that wood products supplied for rough carpentry meet or exceed specified requirements.

1.4 DELIVERY, STORAGE, AND HANDLING

A. General: Cover wood products to protect against moisture. Support stacked products to prevent deformation and to allow air circulation.

1.5 WARRANTY

A. See Section 01 7800 - Closeout Submittals, for additional warranty requirements.

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS

A. Dimension Lumber: Comply with PS 20 and requirements of specified grading agencies.

1. Species: Douglas Fir-Larch, unless otherwise indicated.

2. If no species is specified, provide any species graded by the agency specified; if no grading agency is specified, provide lumber graded by any grading agency meeting the specified requirements.

3. Grading Agency: Any grading agency whose rules are approved by the Board of Review, American Lumber Standard Committee (www.alsc.org) and who provides grading service

06 1000 - 2 for the species and grade specified; provide lumber stamped with grade mark unless otherwise indicated.

4. Lumber of other species or grades is acceptable provided structural and appearance characteristics are equivalent to or better than products specified.

2.2 DIMENSIONAL LUMBER FOR CONCEALED APPLICATIONS

A. Sizes: Nominal sizes B. Moisture Content: S-dry or MC19.

2.3 EXPOSED DIMENSIONAL LUMBER

A. Sizes: Nominal sizes B. Surfacing: S4S.

C. Moisture Content: S-dry or MC19.

2.4 STRUCTURAL COMPOSITE LUMBER

A. At Contractor's option, structural composite lumber may be substituted for concealed dimensional lumber and timbers.

B. Structural Composite Lumber: Factory fabricated beams, headers, and columns, of sizes and types indicated on drawings; structural capacity as published by manufacturer.

2.5 ACCESSORIES

A. Fasteners and Anchors:

1. Metal and Finish: Hot-dipped galvanized steel complying with ASTM A153/A153M for high humidity and preservative-treated wood locations, unfinished steel elsewhere.

2. Drywall Screws: Bugle head, hardened steel, power driven type, length three times thickness of sheathing.

B. Subfloor Adhesives: Waterproof, air cure type, cartridge dispensed; adhesives designed for subfloor applications and complying with either ASTM C557 or ASTM D3498.

C. Construction Adhesives: Adhesives complying with ASTM C557 or ASTM D3498.

PART 3 - EXECUTION

3.1 PREPARATION

A. Coordinate installation of rough carpentry members specified in other sections.

3.2 INSTALLATION - GENERAL

A. Select material sizes to minimize waste.

B. Reuse scrap to the greatest extent possible; clearly separate scrap for use on site as accessory components, including: shims, bracing, and blocking.

3.3 FRAMING INSTALLATION

A. Set structural members level, plumb, and true to line. Discard pieces with defects that would lower required strength or result in unacceptable appearance of exposed members.

B. Make provisions for temporary construction loads, and provide temporary bracing sufficient to maintain structure in true alignment and safe condition until completion of erection and installation of permanent bracing.

C. Install structural members full length without splices unless otherwise specifically detailed.

D. Comply with member sizes, spacing, and configurations indicated, and fastener size and spacing indicated, but not less than required by applicable codes and AWC (WFCM) Wood Frame Construction Manual .

06 1000 - 3

E. Construct double joist headers at floor and ceiling openings and under wall stud partitions that are parallel to floor joists; use metal joist hangers unless otherwise detailed.

F. Frame wall openings with two or more studs at each jamb; support headers on cripple studs.

3.4 BLOCKING, NAILERS, AND SUPPORTS

A. Provide framing and blocking members as indicated or as required to support finishes, fixtures, specialty items, and trim.

3.5 INSTALLATION OF CONSTRUCTION PANELS

A. Wall Sheathing: Secure with long dimension perpendicular to wall studs, with ends over firm bearing and staggered, using nails, screws or staples.

3.6 TOLERANCES

A. Framing Members: 1/4 inch from true position, maximum.

B. Surface Flatness of Floor: 1/8 inch in 10 feet maximum, and 1/4 inch in 30 feet maximum.

C. Variation from Plane (Other than Floors): 1/4 inch in 10 feet maximum, and 1/4 inch in 30 feet maximum.

3.7 FIELD QUALITY CONTROL

A. See Section 01 4000 - Quality Requirements, for additional requirements.

3.8 CLEANING

A. Waste Disposal: See Section 01 7419 - Construction Waste Management and Disposal .

1. Comply with applicable regulations.

2. Do not burn scrap on project site.

3. Do not burn scraps that have been pressure treated.

4. Do not send materials treated with pentachlorophenol, CCA, or ACA to co-generation facilities or “waste-to-energy” facilities.

B. Do not leave wood, shavings, sawdust, etc. on the ground or buried in fill.

C. Prevent sawdust and wood shavings from entering the storm drainage system.

Finish Carpentry 06 2000 - 1

SECTION 06 2000

FINISH CARPENTRY

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Finish carpentry items.

B. Wood casings and moldings.

1.2 REFERENCE STANDARDS

A. HPVA HP-1 - American National Standard for Hardwood and Decorative Plywood 2020.

1.3 SUBMITTALS

A. See Section 01 3000 - Administrative Requirements for submittal procedures.

B. Product Data:

C. Samples: Submit two samples of finish plywood, 6x6 inch in size illustrating wood grain and specified finish.

D. Samples: Submit two samples of wood trim 6 inch long.

1.4 QUALITY ASSURANCE

A. Fabricator Qualifications: Company specializing in fabricating the products specified in this section with minimum five years of documented experience.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Store finish carpentry items under cover, elevated above grade, and in a dry, well-ventilated area not exposed to heat or sunlight.

B. Protect from moisture damage.

C. Handle materials and products to prevent damage to edges, ends, or surfaces.

PART 2 PRODUCTS

2.1 FINISH CARPENTRY ITEMS

A. Interior Woodwork Items:

1. Chair Rail, Moldings, Bases, Casings, and Miscellaneous Trim: Clear white pine or MDF;

prepare for paint finish.

2.2 WOOD-BASED COMPONENTS

A. Provide sustainably harvested wood, certified or labeled as specified in Section 01 6000 -

Product Requirements.

2.3 SHEET MATERIALS

A. Hardwood Plywood: Face species at contractors discretion , plain sawn , book matched , medium density fiberboard core ; HPVA HP-1 Front Face Grade AA, Back Face Grade 1 , glue type as recommended for application.

2.4 ACCESSORIES

A. Adhesive: Type recommended by fabricator to suit application.

Finish Carpentry 06 2000 - 2

B. Plastic Edge Trim: Extruded convex shaped; smooth finish; self locking serrated tongue; of width to match component thickness; white color .

C. Aluminum Edge Trim: Extruded convex shape; smooth surface finish; self locking serrated tongue; of width to match component thickness; natural mill finish.

D. Wood Filler: Solvent base, tinted to match surface finish color.

2.5 SITE FINISHING MATERIALS

A. Stain, Shellac, Varnish, and Finishing Materials: In compliance with AWI/AWMAC/WI (AWS) or

AWMAC/WI (NAAWS), unless noted otherwise.

2.6 FABRICATION

A. Shop assemble work for delivery to site, permitting passage through building openings.

B. When necessary to cut and fit on site, provide materials with ample allowance for cutting.

Provide trim for scribing and site cutting.

2.7 SHOP FINISHING

A. Sand work smooth and set exposed nails and screws.

B. Apply wood filler in exposed nail and screw indentations.

C. Finish work in accordance with AWI/AWMAC/WI (AWS) or AWMAC/WI (NAAWS), Section 5 -

Finishing for grade specified and as follows:

1. Transparent:

a. System - 1, Lacquer, Nitrocellulose.

b. Stain: Match Existing.

c. Sheen: Flat.

2. Opaque:

a. System - 1, Lacquer, Nitrocellulose.

b. Color: As selected by Design Professional.

c. Sheen: Flat.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify adequacy of backing and support framing.

3.2 INSTALLATION

A. Install custom fabrications in accordance with AWI/AWMAC/WI (AWS) or AWMAC/WI

(NAAWS) requirements for grade indicated.

B. Set and secure materials and components in place, plumb and level.

C. Carefully scribe work abutting other components, with maximum gaps of 1/32 inch. Do not use additional overlay trim to conceal larger gaps.

3.3 TOLERANCES

A. Maximum Variation from True Position: 1/16 inch.

B. Maximum Offset from True Alignment with Abutting Materials: 1/32 inch.

JOINT SEALANTS

07 9200 - 1

SECTION 07 9200

JOINT SEALANTS

PART 1 - GENERAL

1.1 DESCRIPTION:

A. This section covers interior and exterior sealant and their application, wherever required for complete installation of building materials or systems.

1.2 QUALITY ASSURANCE:

A. Installer Qualifications: An experienced installer with a minimum of three (3) years’ experience and who has specialized in installing joint sealants similar in material, design, and extent to those indicated for this Project and whose work has resulted in joint-sealant installations with a record of successful in-service performance. Submit qualification.

B. Source Limitations: Obtain each type of joint sealant through one (1) source from a single manufacturer.

1.3 CERTIFICATION:

A. Contractor is to submit to the Construction Manager written certification that joints are of the proper size and design, that the materials supplied are compatible with adjacent materials and backing, that the materials will properly perform to provide permanent watertight, airtight or vapor tight seals (as applicable), and that materials supplied meet specified performance requirements.

1.4 SUBMITTALS:

A. Submit in accordance with Section 013300, SUBMITTALS.

B. Contractor certification.

C. Manufacturer's installation instructions for each product used.

D. Cured samples of exposed sealants for each color.

E. Manufacturer's Literature and Data:

1. Primers

2. Sealing compound, each type, including compatibility when different sealants are in contact with each other.

F. Manufacturer warranty.

1.5 PROJECT CONDITIONS:

A. Environmental Limitations:

1. Do not proceed with installation of joint sealants under following conditions:

a. When ambient and substrate temperature conditions are outside limits permitted by joint sealant manufacturer or are below 4.4 degrees C (40 degrees F).

b. When joint substrates are wet.

B. Joint-Width Conditions:

1. Do not proceed with installation of joint sealants where joint widths are less than those allowed by joint sealant manufacturer for applications indicated.

C. Joint-Substrate Conditions:

1. Do not proceed with installation of joint sealants until contaminants capable of interfering with adhesion are removed from joint substrates.

1.6 DELIVERY, HANDLING, AND STORAGE:

07 9200 - 2

A. Deliver materials in manufacturers' original unopened containers, with brand names, date of manufacture, shelf life, and material designation clearly marked thereon.

B. Carefully handle and store to prevent inclusion of foreign materials.

C. Do not subject to sustained temperatures exceeding 32 degrees C (90 degrees F) or less than

5 degrees C (40 degrees F).

1.7 DEFINITIONS:

A. Definitions of terms in accordance with ASTM C717 and as specified.

B. Backing Rod: A type of sealant backing.

C. Bond Breakers: A type of sealant backing.

D. Filler: A sealant backing used behind a back-up rod.

1.8 WARRANTY:

A. Construction Warranty: Comply with FAR clause 52.246-21 "Warranty of Construction".

B. Manufacturer Warranty: Manufacturer shall warranty their sealant for a minimum of five (5) years from the date of installation and final acceptance by the client. Submit manufacturer warranty.

1.9 APPLICABLE PUBLICATIONS:

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by basic designation only.

B. ASTM International (ASTM):

1. Elastomeric Cellular Preformed Gasket and Sealing Material

2. Mineral Fiber Block and Board Thermal Insulation

3. Standard Terminology of Building Seals and Sealants

4. Test Method for Low-Temperature Flexibility of Latex Sealants after Artificial Weathering

5. Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants

6. Use of Sealants in Acoustical Applications.

7. Elastomeric Joint Sealants.

8. Laboratories Engaged in Testing of Building Sealants

9. Standard Guide for Use of Joint Sealants.

10. Test Method for Staining of Porous Substrate by Joint Sealants

11. Cylindrical Sealant Backing for Use with Cold Liquid Applied Sealants

12. Standard Practice for Evaluating Adhesion of Installed Weatherproofing Sealant Joints

13. Test Methods for Cone Penetration of Lubricating Grease

14. Specification for Flexible Cellular Materials—Sponge or Expanded Rubber

15. Surface Burning Characteristics of Building Materials

C. Sealant, Waterproofing and Restoration Institute (SWRI).

D. The Professionals’ Guide E. Environmental Protection Agency (EPA):

1. National Volatile Organic Compound Emission Standards for Consumer and Commercial Products

PART 2 - PRODUCTS

2.1 SEALANTS:

A. Interior Sealants:

1. VOC Content of Interior Sealants: Sealants and sealant primers used inside the weatherproofing system are to comply with the following limits for VOC content when

07 9200 - 3 calculated according to 40 CFR 59, (EPA Method 24):

a. Architectural Sealants: 250 g/L.

b. Sealant Primers for Nonporous Substrates: 250 g/L.

c. Sealant Primers for Porous Substrates: 775 g/L.

2. Vertical and Horizontal Surfaces: ASTM C920, Type S or M, Grade NS, Class 25, Use NT.

2.2 COLOR:

A. Color of sealants for other locations to be white, unless otherwise indicated in construction documents.

2.3 JOINT SEALANT BACKING:

A. General: Provide sealant backings of material and type that are nonstaining; are compatible with joint substrates, sealants, primers, and other joint fillers; and are approved for applications indicated by sealant manufacturer based on field experience and laboratory testing.

B. Cylindrical Sealant Backings: ASTM C1330, of type indicated below and of size and density to control sealant depth and otherwise contribute to producing optimum sealant performance:

1. Type C: Closed-cell material with a surface skin.

C. Elastomeric Tubing Sealant Backings: Neoprene, butyl, EPDM, or silicone tubing complying with ASTM D1056 or synthetic rubber (ASTM C509), nonabsorbent to water and gas, and capable of remaining resilient at temperatures down to minus 32 degrees C (minus 26 degrees F). Provide products with low compression set and of size and shape to provide a secondary seal, to control sealant depth, and otherwise contribute to optimum sealant performance.

D. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint-filler materials or joint surfaces at back of joint where such adhesion would result in sealant failure. Provide self-adhesive tape where applicable.

2.4 FILLER:

A. Mineral fiberboard: ASTM C612, Class 1.

B. Thickness same as joint width.

C. Depth to fill void completely behind back-up rod.

2.5 PRIMER:

A. As recommended by manufacturer of caulking or sealant material.

B. Stain free type.

2.6 CLEANERS-NON POROUS SURFACES:

A. Chemical cleaners compatible with sealant and acceptable to manufacturer of sealants and sealant backing material. Cleaners to be free of oily residues and other substances capable of staining or harming joint substrates and adjacent non-porous surfaces and formulated to promote adhesion of sealant and substrates.

PART 3 - EXECUTION

3.1 INSPECTION:

A. Inspect substrate surface for bond breaker contamination and unsound materials at adherent faces of sealant.

B. Coordinate for repair and resolution of unsound substrate materials.

07 9200 - 4

C. Inspect for uniform joint widths and that dimensions are within tolerance established by sealant manufacturer.

3.2 PREPARATIONS:

A. Prepare joints in accordance with manufacturer's instructions and SWRI (The Professionals’

Guide).

B. Clean surfaces of joint to receive caulking or sealants leaving joint dry to the touch, free from frost, moisture, grease, oil, wax, lacquer paint, or other foreign matter that would tend to destroy or impair adhesion.

1. Clean porous joint substrate surfaces by brushing, grinding, blast cleaning, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing optimum bond with joint sealants.

2. Clean nonporous surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants.

Nonporous surfaces include but are not limited to the following:

a. Metal.

b. Glass.

C. Do not cut or damage joint edges.

D. Apply non-staining masking tape to face of surfaces adjacent to joints before applying primers, caulking, or sealing compounds.

1. Do not leave gaps between ends of sealant backings.

2. Do not stretch, twist, puncture, or tear sealant backings.

3. Remove absorbent sealant backings that have become wet before sealant application and replace them with dry materials.

E. Apply primer to sides of joints wherever required by compound manufacturer's printed instructions or as indicated by pre-construction joint sealant substrate test.

1. Apply primer prior to installation of back-up rod or bond breaker tape.

2. Use brush or other approved means that will reach all parts of joints. Avoid application to or spillage onto adjacent substrate surfaces.

3.3 BACKING INSTALLATION:

A. Install backing material, to form joints enclosed on three sides as required for specified depth of sealant.

B. Where deep joints occur, install filler to fill space behind the backing rod and position the rod at proper depth.

C. Cut fillers installed by others to proper depth for installation of backing rod and sealants.

D. Install backing rod, without puncturing the material, to a uniform depth, within plus or minus 3 mm (1/8 inch) for sealant depths specified.

E. Where space for backing rod does not exist, install bond breaker tape strip at bottom (or back) of joint so sealant bonds only to two opposing surfaces.

3.4 SEALANT DEPTHS AND GEOMETRY:

A. At widths up to 6 mm (1/4 inch), sealant depth equal to width.

B. At widths over 6 mm (1/4 inch), sealant depth 1/2 of width up to 13 mm (1/2 inch) maximum depth at center of joint with sealant thickness at center of joint approximately 1/2 of depth at adhesion surface.

3.5 INSTALLATION:

A. General:

1. Apply sealants and caulking only when ambient temperature is between

07 9200 - 5

2. 5 degrees C and 38 degrees C (40 degrees and 100 degrees F).

3. Do not install sealant type listed by manufacture as not suitable for use in locations specified.

4. Apply caulking and sealing compound in accordance with manufacturer's printed instructions.

5. Avoid dropping or smearing compound on adjacent surfaces.

6. Fill joints solidly with compound and finish compound smooth.

7. Tool exposed joints to form smooth and uniform beds, with slightly concave surface conforming to joint configuration per Figure 5A in ASTM C1193 unless shown or specified otherwise in construction documents. Remove masking tape immediately after tooling of sealant and before sealant face starts to “skin” over. Remove any excess sealant from adjacent surfaces of joint, leaving the working in a clean finished condition.

8. Apply compounds with nozzle size to fit joint width.

9. Test sealants for compatibility with each other and substrate. Use only compatible sealant.

Submit test reports.

10. Replace sealant which is damaged during construction process.

B. For application of sealants, follow requirements of ASTM C1193 unless specified otherwise.

Take all necessary steps to prevent three-sided adhesion of sealants.

C. Interior Sealants:

1. Apply a 6 mm (1/4 inch) minimum bead of sealant each side of runners (tracks), including those used at partition intersections with dissimilar wall construction.

2. Openings: Apply a 6 mm (1/4 inch) bead of sealant around all cutouts to seal openings of electrical boxes, ducts, pipes and similar penetrations. To seal electrical boxes, seal sides and backs.

3. Control Joints: Before control joints are installed, apply sealant in back of control joint to reduce flanking path for sound through control joint.

3.6 CLEANING:

A. Fresh compound accidentally smeared on adjoining surfaces: Scrape off immediately and rub clean with a solvent as recommended by manufacturer of the adjacent material or if not otherwise indicated by the caulking or sealant manufacturer.

B. Leave adjacent surfaces in a clean and unstained condition.

GYPSUM BOARD

09 2900 - 1

SECTION 09 2900

GYPSUM BOARD

PART 1 GENERAL

1.1 SUMMARY

A. Related Documents:

1. Drawings and general provisions of the Subcontract apply to this Section.

2. Review these documents for coordination with additional requirements and information that apply to work under this Section.

B. Section Includes:

1. Gypsum board, including joint treatment.

2. Acoustical insulation.

3. Acoustical sealant.

C. Related Sections:

1. Division 01 Section "Quality Requirements."

2. Division 01 Section "Submittal Procedures."

3. Division 09 Section "Non-Structural Metal Framing".

4. Division 09 Section "Painting".

PART 1 PRODUCTS

2.1 MANUFACTURERS

A. United States Gypsum Company, National Gypsum Company, or G-P Gypsum Corporation.

B. All materials included in this Section shall be the products of one manufacturer, unless noted otherwise.

2.2 MATERIALS

A. Gypsum Board Materials: Maximum permissible lengths, Type X, fire rated, ends square cut, tapered edges on boards to be finished, unless otherwise indicated.

1. Gypsum Board: ASTM C36, 5/8" thick.

B. Accessories:

1. Fasteners: Metal screws meeting ASTM C1002, minimum S-12 screws for 20 gage or heavier metal.

2. Trim: Coated steel, designed to be concealed in finished construction by tape and joint compound.

a. Edge Trim: GA-216 “L”, “LK” of “LC”.

b. Corner Beads: Manufacturer’s standard metal bead.

c. Control Joints: Manufacturer’s standard metal with removable strip

d. Aluminum Moldings: Fry Corp., or equal, extruded aluminum, profiles indicated on

Drawings, natural finish, longest lengths possible to minimize joints.

e. Joint Materials: Reinforcing tape, joint compound, adhesive, water: ASTM C475.

f. Fiberglass reinforcing tape where joining to existing plaster.

g. Acoustic Sealant: ASTM C919, type for use with gypsum board, non-skinning, non-hardening.

h. Acoustic Insulation: ASTM C665, Type I, preformed mineral fiber, friction fit, unfaced, thickness required to meet indicated STC ratings, or thickness indicated.

09 2900 - 2

i. Compressible Tape: Closed cell neoprene tape, adhesive back, width and thickness as required for gap.

j. Backing Rod: Closed-cell polyethylene foam.

PART 1 EXECUTION

3.1 EXAMINATION

A. Coordinate with other trades for provisions for insulation, refractory fiber, blocking, metal backing plates, special anchors, access doors and panels, and ensure that such items are properly located and installed prior to installing wall finish.

B. Inspect surfaces, backing, framing and furring systems to receive gypsum board, and report any discrepancies. Starting work implies acceptance of existing conditions.

3.2 PREPARATION

A. Protect adjacent areas and air distribution systems from gypsum dust.

3.3 INSTALLATION

A. Gypsum Board: Install in accordance with ASTM C840 and manufacturer’s recommendations.

1. Fasten gypsum board with screws.

2. Install gypsum board plumb, level, and plane.

3. Erect gypsum board with edges and ends occurring on framing members, except edges and ends that are perpendicular to framing members.

4. Locate joints on opposite sides on different studs. Joints are not permitted at corners of openings unless detailed otherwise.

5. Ensure joints of second layer do not occur over joints of first layer.

6. Tolerances: Maximum variation of finished surface from true flatness 1/8 inch in 10 feet (3 mm in 3m).

7. Finish: Comply with GA-214.

8. Four (4) coats (Level IV) of drywall finishing material, one (1) embed, two (2) fill, and one

(1) finish, shall be used in exposed applications. Finish coat and sanding may be omitted in concealed applications. Knockdown textured finish.

B. Accessories:

1. Control Joints: Place consistent with lines of building spaces and as directed by Project

Manager. Provide at the following conditions:

a. Where system abuts structural elements.

b. At dissimilar materials.

c. Partitions exceeding 30 feet (9.15 m) lengths.

d. Ceilings exceeding 50 feet (15.24 m) or 2,500 square feet (232.25 m²).

e. Wings of “L”, “T” or “U” shaped ceilings.

2. Corner Beads: Place at external corners; use longest practical lengths.

3. Edge Trim: Place where gypsum board abuts dissimilar materials.

4. Tape, fill and sand exposed joints, edges, corners and openings to produce surface ready to receive finishes. Feather coats onto adjoining surfaces.

C. Acoustical or Air Sealed Systems:

1. Install acoustical insulation tight within spaces, around cut openings, behind and around electrical and mechanical items within partitions, and tight to items passing through partitions.

2. Install acoustical sealant in accordance with manufacturer’s instructions.

09 2900 - 3

3. Install acoustical insulation blanket on suspended ceilings at acoustical systems that are not full height to structure. Lay with faced side up. Provide continuous layer of insulation 4 feet (1200 mm) wide each side of system.

4. Fill all gaps with compressible neoprene tape where gypsum board systems abut window mullions or other surfaces inaccessible for sealant work.

5. All seals shall be concealed D. Remove and replace defective work.

E. Protect gypsum board work from moisture and contaminants.

RESILIENT BASE AND ACCESSORIES

09 6513 - 1

SECTION 09 6513

RESILIENT BASE AND ACCESSORIES

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Resilient base (RB) adhered to interior walls and partitions.

1.2 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this section.

B. ASTM International (ASTM):

1. F1861‑08(2012)e1 - Resilient Wall Base.

2. D4259‑88(2012) - Abrading Concrete.

C. International Concrete Repair Institute (ICRI):

1. R‑13 - Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings, and

Polymer Overlays.

1.3 SUBMITTALS

A. Submittal Procedures: Section 013300, SUBMITTAL PROCEDURES.

B. Manufacturer's Literature and Data:

1. Description of each product.

2. Adhesives and primers indicating manufacturer's recommendation for each application.

3. Installation instructions.

C. Samples:

1. Resilient Base: 150 mm (6 inches) long, each type and color.

D. Operation and Maintenance Data:

1. Care instructions for each exposed finish product.

1.4 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, color, production run number, and manufacture date.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.5 STORAGE AND HANDLING

A. Store products indoors in dry, weathertight facility.

B. Protect products from damage when handling and during construction operations.

1.6 FIELD CONDITIONS

A. Environment:

1. Product Temperature: Minimum 21 degrees C (70 degrees F) for minimum 48 hours before installation.

2. Work Area Ambient Temperature Range: 21 to 27 degrees C (70 to 80 degrees F) continuously, beginning 48 hours before installation.

3. Install products when building is permanently enclosed and when wet construction is completed, dried, and cured.

09 6513 - 2

1.7 WARRANTY

A. Construction Warranty: Per Iowa Statute.

PART 1 PRODUCTS

2.1 PRODUCTS

A. Basis of Design: Roppe Thermoplastic Vinyl (TV) Wall Base or approved equal.

B. Provide each product from one manufacturer and from one production run.

2.2 RESILIENT BASE

A. Resilient Base: 1/8 inch thick, 6 inches high.

1. Type: Continuous rolled Rubber or vinyl; use one type throughout.

2. ASTM F1861, Type TP thermoplastic rubber or Type TV thermoplastic vinyl, Group 2 -layered.

3. Color: 123 Charcoal

4. Substitutions: Architect approved equal prior to submission of bid.

B. Applications:

1. All Locations: Style B - Cove.

2.3 ADHESIVES

A. Adhesives: Low pollutant‑emitting, water based type recommended by adhered product manufacturer for each application.

PART 1 EXECUTION

3.1 PREPARATION

A. Examine and verify substrate suitability for product installation.

B. Protect existing construction and completed work from damage.

C. Remove existing base to permit new installation.

1. Dispose of removed materials.

D. Correct substrate deficiencies.

1. Fill cracks, pits, and depressions with leveling compound.

2. Remove protrusions; grind high spots.

3. Apply leveling compound to achieve 3 mm (1/8 inch) in 3 m (10 feet) maximum surface variation.

E. Clean substrates. Remove contaminants capable of affecting subsequently installed product's performance.

1. Mechanically clean concrete floor substrate according to ASTM D4259.

2. Surface Profile: ICRI Guideline No. 310.2R.

F. Allow substrate to dry and cure.

G. Perform flooring manufacturer’s recommended bond, substrate moisture content, and pH tests.

3.2 INSTALLATION GENERAL

A. Install products according to manufacturer's instructions.

1. When instructions deviate from specifications, submit proposed resolution for Contracting Officer consideration.

3.3 RESILIENT BASE INSTALLATION

09 6513 - 3

A. Applications:

1. Install resilient base in rooms scheduled on Drawings.

2. Install resilient base on casework and other curb supported fixed equipment.

3. Extend resilient base into closets, alcoves, and cabinet knee spaces, and around columns within scheduled room.

B. Lay out resilient base with minimum number of joints.

1. Length: 600 mm (24 inches) minimum, each piece.

2. Locate joints 150 mm (6 inches) minimum from corners and intersection of adjacent materials.

C. Installation:

1. Apply adhesive uniformly for full contact between resilient base and substrate.

2. Set resilient base with hairline butted joints aligned along top edge.

3. Joint Sealant – Set cove base in full bed silicone sealant in foodservice area. Apply sealant to top joint to CMU wall and base to concrete floor.

D. Factory form corners and end stops.

1. V‑groove back of outside corner.

2. V‑groove face of inside corner and notch cove for miter joint.

E. Roll resilient base ensuring complete adhesion.

3.4 CLEANING

A. Remove excess adhesive before adhesive sets.

B. Clean exposed resilient base surfaces. Remove contaminants and stains.

1. Clean with mild detergent. Leave surfaces free of detergent residue.

C. Polish exposed resilient base to gloss sheen or per manufacturer’s direction.

3.5 PROTECTION

A. Protect products from construction traffic and operations.

1. Maintain protection until directed by Owner’s Representative.

B. Replace damaged products and re‑clean.

1. Damaged Products include cut, gouged, scraped, torn, and unbonded products.

Tile Carpeting 09 6813 - 1

SECTION 09 6813

TILE CARPETING

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Carpet tile, fully adhered.

1.2 REFERENCE STANDARDS

A. CRI 104 - Standard for Installation of Commercial Carpet 2015.

B. CRI (GLP) - Green Label Plus Testing Program - Certified Products Current Edition.

1.3 SUBMITTALS

A. See Section 01 3000 - Administrative Requirements, for submittal procedures.

B. Product Data: Provide data on specified products, describing physical and performance characteristics; sizes, patterns, colors available, and method of installation.

C. Samples: Submit two carpet tiles illustrating color and pattern design for each carpet color selected.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Tile Carpeting:

1. Interface, Inc; [____]: www.interface.com/#sle.

2. Mannington Commercial; [_______]: www.manningtoncommercial.com#sle.

3. Substitutions: See Section 01 6000 - Product Requirements.

2.2 MATERIALS

A. Tile Carpeting, Type 6 or 6.6: Tufted loop pile, manufactured in one color dye lot.

1. Product: Open Air manufactured by Interface or Architect approved equal prior to submission of bid..

2. Style: Open Air 416, Granite

3. Tile Size: 20 by 20 inch , nominal.

4. Gauge: 1/12 inch .

5. Stitches: 8.3 per inch .

6. Pile Weight: 17 oz/sq yd .

2.3 ACCESSORIES

A. Subfloor Filler: White premix latex; type recommended by flooring material manufacturer.

B. Edge Strips: Embossed aluminum , natural color .

C. Adhesives:

D. Carpet Tile Adhesive: Recommended by carpet tile manufacturer; releasable type.

PART 3 EXECUTION

3.1 EXAMINATION

Tile Carpeting 09 6813 - 2

A. Verify that subfloor surfaces are smooth and flat within tolerances specified for that type of work and are ready to receive carpet tile.

3.2 PREPARATION

A. Prepare floor substrates as recommended by flooring and adhesive manufacturers.

3.3 INSTALLATION

A. Starting installation constitutes acceptance of subfloor conditions.

B. Install carpet tile in accordance with manufacturer's instructions.

C. Blend carpet from different cartons to ensure minimal variation in color match.

D. Cut carpet tile clean. Fit carpet tight to intersection with vertical surfaces without gaps.

E. Lay carpet tile in square pattern, with pile direction parallel to next unit, set parallel to building lines.

F. Trim carpet tile neatly at walls and around interruptions.

G. Complete installation of edge strips, concealing exposed edges.

PAINTING

09 9100 - 1

SECTION 09 9100

PAINTING

PART 1 GENERAL

1.1 SUMMARY

A. Related Documents:

1. Drawings and general provisions of the Subcontract apply to this Section.

2. Review these documents for coordination with additional requirements and information that apply to work under this Section.

3. Refer to other Sections for references to painting work included under this Section.

B. Section Includes:

1. Field application of paints and coatings.

2. Unless otherwise specified or shown, paint all surfaces and items which are exposed to view, including those out of doors or on roofs.

3. Surface preparation.

C. Related Sections:

1. Division 01 Section "Quality Requirements."

2. Division 01 Section "Submittal Procedures."

D. Surfaces Not To Be Painted:

1. Prefinished items, except prefinished items specified to be field painted in Article [3.03]

[and] [3.09].

2. Walls or ceilings of concealed or inaccessible areas.

3. Fire or smoke rating labels on doors or frames.

4. Equipment name plates.

5. Heat detectors.

6. Smoke detectors.

7. Piping identification labels.

8. Moving parts of mechanical or electrical equipment.

1.2 REFERENCES

A. General:

1. The following documents form part of the Specifications to the extent stated. Where differences exist between codes and standards, the one affording the greatest protection shall apply.

2. Unless otherwise noted, the referenced standard edition is the current one at the time of commencement of the Work.

3. Refer to Division 01 Section "Quality Requirements" for the list of applicable regulatory requirements.

1.3 SUBMITTALS

A. Submit under provisions of Division 01 Section "Submittal Procedures."

B. Product Data:

1. Materials List: Complete list of proposed manufacturers and products.

2. Manufacturer's Specifications: Manufacturer’s technical information for each product, including paint analysis and application instructions.

3. Material safety data sheets for each product.

C. Samples:

09 9100 - 2

1. Preliminary Samples: 8-1/2" x 11" samples of each color, texture and sheen on glossy card stock.

2. Field Samples: After preliminary samples have been approved, apply minimum 30" x 30" field samples at locations designated by Project Manager for final approval.

a. Do not prepare interior field samples until permanent lighting is in place and operating.

b. Allow for applying field samples two additional times in order to achieve desired colors, without additional cost to District or delay in schedule.

D. Certificates: Provide certificate from each manufacturer stating material is premium quality and suitable for intended use on this Project.

E. Closeout Submittals:

1. Two copies of manufacturer's color and sheen formula, and 4" x 6" color chips, for each final color used in the Project.

2. Product Usage Records: Three copies of product usage records for each paint, coating and solvent product used in the project. Include product name, amount used, description of use and use location, and period of time over which the product was used.

1.4 QUALITY ASSURANCE

A. Applicator Qualifications: Company specializing in performing the work of this section with minimum 5 years successful experience in work of similar scope.

B. Manufacturer's Instructions: Perform painting work in accordance with manufacturer's written instructions and recommendations.

C. Pre-Installation Meeting: Before painting begins, meet with Project Manager, Architect and

Subcontractor to discuss painting work, color schedule, product compliance, and hazardous material remediation.

1.5 DELIVERY, STORAGE AND HANDLING

A. Deliver materials to the Project in original, new, unbroken packages and containers bearing manufacturer's name and label, with:

1. Name of material, color and sheen.

2. Manufacturer’s name, product number and date of manufacture.

3. Contents by volume of major pigments, vehicle constituents and volatile organic compound (VOC) content.

4. Thinning and application instructions.

1.6 PROJECT CONDITIONS

A. Comply with paint manufacturer's instructions on temperature and humidity conditions under which materials can be applied.

B. Environmental Requirements:

1. Silica Dust: Incorporate controls to eliminate visible emissions from any activity , which may generate silica dust, such as abrasive blasting.

a. Do not use silica sand or other substances containing more than 1 per cent crystalline silica as abrasive blasting materials.

b. Prevent exposure of workers and others to dust using methods such as removing dust with water, high efficiency particulate air (HEPA) filters, and wet sweeping. Do not use compressed air or dry sweeping to remove dust.

2. Contain and dispose of materials resulting from cleaning, including lead-containing materials, in accordance with District procedures and applicable regulations.

3. Disposal down District sanitary drains or storm drains of solvents, etching materials, or water contaminated with solvents or etching materials, is not permitted. Contain and

09 9100 - 3 dispose of such materials at legal disposal sites approved for this purpose.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturers: Benjamin Moore, Diamond Vogel, Sherwin Williams or approved equal.

2.2 MATERIALS

A. Material Quality:

1. Provide premium quality materials. Materials not bearing manufacturer’s identification as a premium-grade product are not acceptable.

2. Should manufacturer’s specifications or product numbers change, provide its current equal or better product.

3. Primer and undercoats are to be of same manufacturer as final coat.

4. Materials left from previous jobs are not acceptable.

5. Use only thinners approved by paint manufacturer, and use only within recommended limits.

6. Etching Solutions: As recommended by paint manufacturer for the use intended.

7. Solvents: Non-petroleum based, as recommended by paint manufacturer for the use intended.

8. Crack Filler: Elastomeric, approved by paint manufacturer for the particular use intended.

B. Finish Coat Coordination: Provide finish coats which are compatible with prime paints used.

1. Review other Sections in which prime paints are provided. Ensure compatibility of total coating systems.

2. Upon request from other trades, furnish information on characteristics of finish materials proposed for use.

3. Provide barrier coats over incompatible primers, or remove and reprime.

4. Notify Owner’s Representative in writing of any problems anticipated in use of specified coating systems with substrates primed by others.

2.3 COLORS

A. General:

1. Use of proprietary names in color selections does not imply exclusion of equivalent products of other manufacturers.

2. The proposal and acceptance of any paint manufacturer shall not restrict Owner to selection of standard colors of that manufacturer.

3. Color palette will be selected by Owner from Manufacturer's full line.

B. Finish coat colors shall be factory mixed.

C. Color: Sherwin Williams Lazy Grey SW6254 D. Substitutions: Architect Approved Equal prior to submission of bid.

PART 3 EXECUTION

3.1 EXAMINATION

A. Examine areas and conditions under which painting work is to be applied.

B. Do not paint over dirt, rust, scale, grease, oil, dust,…