Technical Exhibit J-Div 09 FINISHES 23 May 2023.pdf

MOTCO Job Order Contract (SATOC) 2487

SECTION TABLE OF CONTENTS

DIVISION 09 - FINISHES

SECTION 09 22 00

SUPPORTS FOR PLASTER AND GYPSUM BOARD

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 DELIVERY, STORAGE, AND HANDLING

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Materials for Attachment of Lath

2.1.1.1 Suspended and Furred Ceiling Systems and Wall Furring

2.1.1.2 Non-load Bearing Wall Framing

2.1.2 Materials for Attachment of Gypsum Wallboard

2.1.2.1 Suspended and Furred Ceiling Systems

2.1.2.2 Non-load Bearing Wall Framing and Furring

2.1.2.3 Furring Structural Steel Columns

2.1.2.4 Z-Furring Channels with Wall Insulation

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Systems for Attachment of Lath

3.1.1.1 Suspended and Furred Ceiling Systems and Wall Furring

3.1.1.2 Non-load Bearing Wall Framing

3.1.2 Systems for Attachment of Gypsum Wallboard

3.1.2.1 Suspended and Furred Ceiling Systems

3.1.2.2 Non-load Bearing Wall Framing and Furring

3.1.2.3 Furring Structural Steel Columns

3.1.2.4 Z-Furring Channels with Wall Insulation

3.2 ERECTION TOLERANCES

-- End of Section Table of Contents --

SECTION 09 22 00 Page 1

SECTION 09 22 00

SUPPORTS FOR PLASTER AND GYPSUM BOARD

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM A463/A463M (2015; R 2020; E 2020) Standard Specification for Steel Sheet, Aluminum-Coated, by the Hot-Dip Process

ASTM A653/A653M (2020) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM C645 (2014; E 2015) Nonstructural Steel Framing Members

ASTM C754 (2020) Standard Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products

ASTM C841 (2003; R 2013) Installation of Interior Lathing and Furring

ASTM C847 (2014a) Standard Specification for Metal Lath

NATIONAL ASSOCIATION OF ARCHITECTURAL METAL MANUFACTURERS (NAAMM)

NAAMM EMLA 920 (2009) Guide Specifications for Metal Lathing and Furring

UNDERWRITERS LABORATORIES (UL)

UL Fire Resistance (2014) Fire Resistance Directory

1.2 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

SECTION 09 22 00 Page 2

Metal Support Systems; G , S

Submit for the erection of metal framing, furring, and ceiling suspension systems. Indicate materials, sizes, thicknesses, and fastenings.

SD-03 Product Data

Metal Support Systems

Recycled Content for Metal Support Systems; S

1.3 DELIVERY, STORAGE, AND HANDLING

Deliver materials to the job site and store in ventilated dry locations permitting easy access for inspection and handling. If materials are stored outdoors, stack materials off the ground, supported on a level platform, and fully protected from the weather. Handle materials carefully to prevent damage. Remove damaged items and provide new items.

PART 2 PRODUCTS

2.1 MATERIALS

Provide steel materials for metal support systems with galvanized coating ASTM A653/A653M , G-60; aluminum coating ASTM A463/A463M , T1-25; or a 55-percent aluminum-zinc coating. Provide support systems and attachments per UFC 3-301-01, "Structural Engineering" in seismic zones.

Provide metal support systems containing a minimum of 20 percent recycled content. Provide data identifying percentage of recycled content for metal support systems.

2.1.1 Materials for Attachment of Lath

2.1.1.1 Suspended and Furred Ceiling Systems and Wall Furring

ASTM C841, and ASTM C847.

2.1.1.2 Non-load Bearing Wall Framing

NAAMM EMLA 920.

2.1.2 Materials for Attachment of Gypsum Wallboard

2.1.2.1 Suspended and Furred Ceiling Systems

ASTM C645.

2.1.2.2 Non-load Bearing Wall Framing and Furring

ASTM C645, but not thinner than 0.0329 inch thickness regardless of the ASTM certified third party testing statement for equivalent thicknesses.

2.1.2.3 Furring Structural Steel Columns

ASTM C645. Steel (furring) clips and support angles listed in UL Fire Resistance may be provided in lieu of steel studs for erection of

SECTION 09 22 00 Page 3 gypsum wallboard around structural steel columns.

2.1.2.4 Z-Furring Channels with Wall Insulation

Not lighter than 26 gage galvanized steel, Z-shaped, with 1-1/4 inch and 3/4 inch flanges and depth as required by the insulation thickness provided.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Systems for Attachment of Lath

3.1.1.1 Suspended and Furred Ceiling Systems and Wall Furring

ASTM C841, except as indicated otherwise.

3.1.1.2 Non-load Bearing Wall Framing

NAAMM EMLA 920, except provide framing members 16 inches o.c. unless indicated otherwise.

3.1.2 Systems for Attachment of Gypsum Wallboard

3.1.2.1 Suspended and Furred Ceiling Systems

ASTM C754, except provide framing members 16 inches o.c. unless indicated otherwise.

3.1.2.2 Non-load Bearing Wall Framing and Furring

ASTM C754, except as indicated otherwise.

3.1.2.3 Furring Structural Steel Columns

Install studs or galvanized steel clips and support angles for erection of gypsum wallboard around structural steel columns in accordance with the UL Fire Resistance , design number(s) indicated .

3.1.2.4 Z-Furring Channels with Wall Insulation

Install Z-furring channels vertically spaced not more than 24 inches o.c.

Locate Z-furring channels at interior and exterior corners in accordance with manufacturer's printed erection instructions. Fasten furring channels to masonry and concrete walls with powder-driven fasteners or hardened concrete steel nails through narrow flange of channel. Space fasteners not more than 24 inches o.c.

3.2 ERECTION TOLERANCES

Provide framing members which will be covered by finish materials such as wallboard, plaster, or ceramic tile set in a mortar setting bed, within the following limits:

a. Layout of walls and partitions: 1/4 inch from intended position;

b. Plates and runners: 1/4 inch in 8 feet from a straight line;

c. Studs: 1/4 inch in 8 feet out of plumb, not cumulative; and

SECTION 09 22 00 Page 4

d. Face of framing members: 1/4 inch in 8 feet from a true plane.

Provide framing members which will be covered by ceramic tile set in dry-set mortar, latex-portland cement mortar, or organic adhesive within the following limits:

a. Layout of walls and partitions: 1/4 inch from intended position;

b. Plates and runners: 1/8 inch in 8 feet from a straight line;

c. Studs: 1/8 inch in 8 feet out of plumb, not cumulative; and

d. Face of framing members: 1/8 inch in 8 feet from a true plane.

-- End of Section --

SECTION 09 22 00 Page 5

DIVISION 09 - FINISHES

SECTION 09 22 36

LATH

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 DELIVERY AND STORAGE

PART 2 PRODUCTS

2.1 LATH

2.1.1 Metal Plastering Base (Lath)

2.1.1.1 For Portland Cement-Based Plaster (Stucco)

2.1.1.2 For Gypsum Plaster

2.1.1.3 Paper Backing (Waterproofed Kraft Building Paper)

2.1.1.4 Galvanized Metal Plastering Base

2.1.2 Accessories

2.2 ACCESS PANELS

2.3 HANGERS

2.3.1 Wires

2.3.2 Straps

2.3.3 Rods

2.3.4 Eyebolts

2.3.5 Masonry Anchorage Devices

PART 3 EXECUTION

3.1 INSPECTION

3.2 INSTALLATION

3.2.1 Lathing Materials and Accessories

3.2.1.1 Metal Plastering Base

3.2.1.2 Metal Plaster Base with Paper Backing

3.2.1.3 Gypsum Lath

3.2.1.4 Control (Expansion and Contraction) Joints

3.2.1.5 Unrestrained Ceilings

3.2.1.6 Plastering Beads

3.2.2 Fire-Resistant Assemblies

3.2.3 Access Panels

SECTION 09 22 36 Page 1

SECTION 09 22 36

LATH

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM A489 (2018; E 2018) Standard Specification for Carbon Steel Eyebolts

ASTM A641/A641M (2019) Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire

ASTM A653/A653M (2020) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A1008/A1008M (2021a) Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable

ASTM B633 (2019) Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel

ASTM C636/C636M (2013) Standard Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels

ASTM C841 (2003; R 2013) Installation of Interior Lathing and Furring

ASTM C1063 (2022) Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster

UNDERWRITERS LABORATORIES (UL)

UL Fire Resistance (2014) Fire Resistance Directory

1.2 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification

SECTION 09 22 36 Page 2 identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-03 Product Data

Lath

Recycled Content for Metal Lath; S

Accessories

Access Panels

1.3 DELIVERY AND STORAGE

Deliver materials in the manufacturer's original unbroken packages or containers that are labeled plainly with the manufacturer's names and brands. Store materials in dry locations with adequate ventilation, free from water, and in such a manner to permit easy access for inspection and handling. Stack gypsum lath flat to avoid sagging or damage to edges, ends, or surfaces, and protect from exposure to direct sunlight.

PART 2 PRODUCTS

2.1 LATH

Provide metal lath containing a minimum of 20 percent recycled content.

Provide data identifying percentage of recycled content for metal lath.

2.1.1 Metal Plastering Base (Lath)

Provide the type(s) and weight(s) required for the type and spacing of supports shown for the kind of plaster indicated and specified. Do not use rib lath for ceramic tile scratch coat.

2.1.1.1 For Portland Cement-Based Plaster (Stucco)

ASTM C1063, diamond mesh self-furring diamond mesh metal lath weighing not less than [_____] pounds per square yard.

2.1.1.2 For Gypsum Plaster

ASTM C841, diamond mesh self-furring diamond mesh metal lath weighing not less than [_____] pounds per square yard.

2.1.1.3 Paper Backing (Waterproofed Kraft Building Paper)

Provide metal plastering base with paper backing, "Water-vapor permeable" for room(s) as noted on the drawings and for exterior plastering work.

2.1.1.4 Galvanized Metal Plastering Base

Provide for exterior plastering work and for plastering room(s) as noted on the draings.

2.1.2 Accessories

ASTM C1063. Provide only clear plastic coated aluminum accessories.

SECTION 09 22 36 Page 3

2.2 ACCESS PANELS

Prefabricated steel units, size(s) as indicated. Fabricate frame of preformed angle or channel with welded joints. Perforate wide leg or flange of frame section or extend frame section into expanded metal wings to provide a key for the plaster. Provide a hinged or snap-on type cover with turn-latch or spring catch. Provide access panelsas shown on jthe drawings with a means for locking. Fabricate access panels not larger than 24 by 36 inches from 14 gage steel with frames not lighter than 16 gage.

Fabricate access panels larger than 24 by 36 inches as indicated.

Factory-prime panels with rust-inhibitive paint.

2.3 HANGERS

Provide hangers and attachment capable of supporting a minimum 300 pound ultimate vertical load without failure of supporting material or attachment.

2.3.1 Wires

Conform wires to ASTM A641/A641M , Class 1, 0.08 inch (12 gauge) in diameter.

2.3.2 Straps

Provide straps of 1 by 3/16 inch galvanized steel conforming to ASTM A653/A653M , with a light commercial zinc coating or ASTM A1008/A1008M with an electrodeposited zinc coating conforming to ASTM B633, Type RS.

2.3.3 Rods

Provide 3/16 inch diameter threaded steel rods, zinc or cadmium coated.

2.3.4 Eyebolts

Provide eyebolts of weldless, forged-carbon-steel, with a straight-shank in accordance with ASTM A489. Eyebolt size must be a minimum 1/4 inch, zinc coated.

2.3.5 Masonry Anchorage Devices

Comply with ASTM C636/C636M for anchorage devices for eyebolts .

PART 3 EXECUTION

3.1 INSPECTION

Verify that framing, furring and accessories are securely attached and of proper sizes and spacing necessary to provide a suitable substrate to receive lath. Do not proceed with work until framing, furring and accessories are acceptable to the Contracting Officer for application of lath.

3.2 INSTALLATION

3.2.1 Lathing Materials and Accessories

Install in accordance with ASTM C1063 for portland cement-based plaster work, except where indicated or specified otherwise herein.

SECTION 09 22 36 Page 4

3.2.1.1 Metal Plastering Base

Install where indicated.

3.2.1.2 Metal Plaster Base with Paper Backing

Where used, lap joints to provide backing on backing and metal-on-metal.

Lap backing not less than one inch. Lap backing so that water will flow to the exterior.

3.2.1.3 Gypsum Lath

Install on wood or metal studding, furring, joists, rafters and similar framing members for plastered walls, partitions, ceilings, and soffits.

3.2.1.4 Control (Expansion and Contraction) Joints

a. For portland cement-based plaster (ceilings and walls), install to create panels no larger than l00 square feet with no dimension exceeding 10 feet.

b. For unrestrained gypsum plaster ceilings install to create panels no larger than 2,500 square feet with no dimension exceeding 50 feet.

For gypsum plaster walls, partitions and ceilings without perimeter relief install not more than 30 feet on centers in either direction.

c. Install where indicated, where expansion joints occur in the structural walls and ceilings and where ceiling framing or furring changes direction. Terminate lath at each side of joint and fasten joints securely to lath.

3.2.1.5 Unrestrained Ceilings

Ensure furred or suspended ceilings constructed with gypsum plaster and larger than 2,500 square feet in area or with any dimension exceeding 50 feet or portland cement-based plaster are unrestrained. Isolate ceiling lath and plaster from ceiling intersecting vertical surfaces with casing beads, control joints, or similar devices designed to keep the ceiling isolated from the adjacent vertical surfaces (walls, partitions, beams, and columns). Do not use corner reinforcement at the internal angle between the ceiling and the vertical surfaces.

3.2.1.6 Plastering Beads

Install edge trim (casing bead) at the edges of plaster which abuts or adjoins an unplastered surface, on each surface at the internal angle formed by load bearing and non-load bearing walls and partitions abutting structural walls, columns, or floor-ceiling slabs, between concrete or terrazzo bases and the plaster above them, on each side of the joint between walls or partitions constructed of dissimilar materials which require plastering, and between plasters of a different composition. Fill voids formed in corners with sealant. Install corner beads at all vertical external corners of plaster walls.

3.2.2 Fire-Resistant Assemblies

Wherever fire-resistant construction is indicated, provide all materials and application methods, including types and spacing of fasteners, in

SECTION 09 22 36 Page 5 accordance with the specifications contained in the UL Fire Resistance for the Design Number(s) indicated.

3.2.3 Access Panels

Install in suspended ceilings and plastered walls at locations[ indicated][ and][ specified in [_____]].

SECTION 09 22 36 Page 6

DIVISION 09 - FINISHES

SECTION 09 23 00

GYPSUM PLASTERING

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALITY ASSURANCE

1.3.1 Sample Panels

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 GYPSUM PLASTER FULL SIZE SAMPLE

1.6 SCHEDULING AND ENVIRONMENTAL REQUIREMENTS

1.6.1 Environmental Requirements

1.7 FIRE RESISTIVE COATINGS

PART 2 PRODUCTS

2.1 MATERIALS

2.2 GYPSUM BASE COAT PLASTER

2.2.1 Gypsum Neat Plaster Base Coat

2.2.2 High Strength Gypsum Plaster Base Coat

2.3 GYPSUM FINISH COAT PLASTER

2.3.1 Gypsum Gauging Plaster Finish Coat

2.3.2 High Strength Gypsum Gauging Plaster Finish Coat

2.3.3 Keene's Cement Finish Coat

2.3.4 Acoustical Plaster Finish Coat

2.4 HYDRATED LIME

2.5 AGGREGATES

2.5.1 Sand for Gypsum Base Coats

2.5.2 Sand for Gypsum Sand Float Finish

2.5.3 Lightweight Aggregates, Perlite or Vermiculite for Gypsum Base

Coat

2.5.4 Silica Sand or Perlite Fines

2.6 WATER

2.7 PROPORTIONING

2.7.1 Gypsum Base Coat Plaster

2.7.1.1 Sand and Gypsum Plaster Base Coat

2.7.1.2 Lightweight Aggregate and Gypsum Plaster Base Coat

2.7.1.3 Sand and Wood Fibered Gypsum Plaster Base Coat

2.7.1.4 Sand and High-Strength Gypsum Plaster Base Coat

2.7.2 Gypsum Plaster Finish Coat

2.7.2.1 Lime-Putty

2.7.2.2 Lime-Putty Gypsum-Gauged (White Coat)

2.7.2.3 Aggregated Finish Coat

2.7.2.4 Gypsum Sand Float Finish[ for [_____]]:

2.7.2.5 Keene's Cement Lime-Putty Finish[ for [_____]]

2.7.2.6 High Strength Gypsum-Gauged Plaster Finish[ for [_____]]

2.7.2.7 Acoustical Plaster Finish[ for [_____]]

2.8 MIXING

SECTION 09 23 00 Page 1

2.8.1 Job-Mixed Materials

2.8.1.1 Water

2.8.1.2 Sand

2.8.1.3 Mixing (Do's)

2.8.1.4 Mixing (Don'ts)

2.8.2 Ready-Mixed Packaged Materials

2.9 BONDING AGENT

PART 3 EXECUTION

3.1 SURFACE PREPARATION

3.2 WORKMANSHIP

3.2.1 Slump Tests

3.2.2 Application

3.2.3 Control And Expansion Joints

3.2.4 Curing

3.2.4.1 Gypsum Plaster

3.3 GYPSUM PLASTER WORK

3.3.1 Gypsum Plaster Thickness Requirements

3.3.2 Gypsum Plaster Basecoat Work

3.3.2.1 Gypsum Two-Coat System

3.3.2.2 Gypsum Three-Coat System

3.3.3 Gypsum Plaster Finish Coats

3.3.3.1 Lime-Putty and Gypsum-Gauged Finish Coats

3.3.3.2 Keene's Cement Lime-Putty Finish Coat

3.3.3.3 Gypsum Sand Float Finish Coat

3.3.3.4 Acoustical Plaster Finish Coat

3.4 ORNAMENTAL PLASTER WORK

3.5 PATCHING AND POINTING

SECTION 09 23 00 Page 2

SECTION 09 23 00

GYPSUM PLASTERING

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C28/C28M (2010) Gypsum Plasters

ASTM C35 (2001; R 2019) Inorganic Aggregates for Use in Gypsum Plaster

ASTM C61/C61M (2000; R 2011) Gypsum Keene's Cement

ASTM C206 (2014) Standard Specification for Finishing Hydrated Lime

ASTM C472 (2020) Physical Testing of Gypsum, Gypsum Plasters and Gypsum Concrete

ASTM C631 (2009; R 2020) Bonding Compounds for Interior Gypsum Plastering

ASTM C842 (2005; R 2021) Standard Specification for Application of Interior Gypsum Plaster

ASTM E1042 (2002; R 2021) Standard Classification for Acoustically Absorptive Materials Applied by Trowel or Spray

FM GLOBAL (FM)

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

UNDERWRITERS LABORATORIES (UL)

UL Fire Resistance (2014) Fire Resistance Directory

1.2 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-03 Product Data

SECTION 09 23 00 Page 3

Gypsum Base Coat Plaster

Gypsum Finish Coat Plaster

SD-04 Samples

Sample Panel; G

Submit four 36 inch square panels of varying texture for the Contracting Officer's approval.

Gypsum Plaster Full Size Sample; G

SD-08 Manufacturer's Instructions

Ready-Mix Gypsum Plaster

Acoustical Plaster Finish

Submit manufacturer's printed mixing instructions for ready-mix plaster and acoustical plaster finish.

1.3 QUALITY ASSURANCE

1.3.1 Sample Panels

Erect sample panel at the building site, or as otherwise directed.

Finished gypsum plaster work must match the approved sample panel.

1.4 DELIVERY, STORAGE, AND HANDLING

Deliver manufactured materials in the manufacturers' original unbroken packages or containers which are labeled plainly with the manufacturers' names and brands. Keep cementitious materials dry and stored off the ground, under cover, and away from sweating walls and other damp surfaces until ready for use. Keep materials wrapped and separate from off-gassing materials, such as paints and adhesives. Do not use materials that have visible moisture or biological growth.

1.5 GYPSUM PLASTER FULL SIZE SAMPLE

After selection of an acceptable texture, construct a sample wall separate from the building, minimum size of 8 ftin height, by 8 ft in length, using 6 inch metal studs, and gypsum board, metal lath and gypsum plaster. The sample wall must show all aspects of gypsum plaster work, including but not limited to, expansion joints, control joints, corner extrusions, electrical mechanical and fire sprinkler penetrations and casing beads. A sample of a control joint and extrusion butt joint must also be incorporated into the sample wall. Finish work must match the approved sample panel. Divide the panel into four equal quadrants with the expansion and control joints to show each phase of work, lath, scratch coat, brown coat, and finish coats. Provide and protect the sample wall from damage during the length of the contract.

1.6 SCHEDULING AND ENVIRONMENTAL REQUIREMENTS

Commence application only after the area scheduled for gypsum plastering work is completely weathertight. The heating, ventilating, and

SECTION 09 23 00 Page 4 air-conditioning systems must be complete and in operation prior to application of the plaster. If the mechanical system cannot be activated before veneer plastering is begun, the plastering may proceed in accordance with an approved plan to maintain the environmental requirements specified below. Apply plaster prior to the installation of finish flooring and acoustic ceiling.

1.6.1 Environmental Requirements

Do not expose the gypsum base to excessive sunlight prior to plaster application, as bond failure of the plaster may result. Maintain a continuous uniform temperature of not less than 50 degrees F and not more than 80 degrees F for at least one week prior to the application of veneer plaster, while the plastering is being done, and for at least one week after the plaster is set. Shield air supply and distribution devices to prevent any uneven flow of air across the plastered surfaces. Provide ventilation to exhaust moist air to the outside during plaster application, set, and until plaster is dry. In glazed areas, keep windows open top and bottom or side to side 3 to 4 inches. Openings can be reduced in cold weather. For enclosed areas lacking natural ventilation, provide temporary mechanical means for ventilation. In unglazed areas subjected to hot, dry winds or temperature differentials from day to night of 20 degrees F or more, screen openings with cheesecloth or similar materials. Avoid rapid drying. During periods of low indoor humidity, provide minimum air circulation following plastering and until plaster is dry.

1.7 FIRE RESISTIVE COATINGS

Comply with specified fire-rated assemblies for design numbers indicated per UL Fire Resistance or FM APP GUIDE.

PART 2 PRODUCTS

2.1 MATERIALS

Conform to the specifications, standards, and requirements specified herein. Provide asbestos-free materials.

2.2 GYPSUM BASE COAT PLASTER

2.2.1 Gypsum Neat Plaster Base Coat

ASTM C28/C28M.

2.2.2 High Strength Gypsum Plaster Base Coat

ASTM C28/C28M, gypsum neat plaster, except plaster must have a compressive strength of not less than 2,500 psi, when tested dry in accordance with

ASTM C472.

2.3 GYPSUM FINISH COAT PLASTER

2.3.1 Gypsum Gauging Plaster Finish Coat

ASTM C28/C28M.

SECTION 09 23 00 Page 5

2.3.2 High Strength Gypsum Gauging Plaster Finish Coat

ASTM C28/C28M, gypsum gauging plaster, except plaster must have a compressive strength of not less than 4,500 psi when tested dry in accordance with ASTM C472.

2.3.3 Keene's Cement Finish Coat

ASTM C61/C61M.

2.3.4 Acoustical Plaster Finish Coat

ASTM E1042 Type II, Class A, noncombustible.

2.4 HYDRATED LIME

ASTM C206, Type S.

2.5 AGGREGATES

2.5.1 Sand for Gypsum Base Coats

ASTM C35.

Sand Gradation: Percentage retained by weight (plus or minus 2 percent) on each sieve.

Sieve Size Maximum Minimum

No. 4 4760 microns 0 0

No. 8 2380 microns 5 0

No. 16 1190 microns 30 5

No. 30 590 microns 65 30

No. 50 300 microns 95 65

No. 100 100 90

2.5.2 Sand for Gypsum Sand Float Finish

ASTM C842.

Sand Gradation: Percentage retained by weight (plus or minus 2 percent) on each sieve.

Sieve Size Maximum Minimum

No. 20 850 microns 0

No. 30 590 microns 0.5

SECTION 09 23 00 Page 6

Sieve Size Maximum Minimum

No. 100 150 microns 100 40

No. 200 75 microns 100 70

2.5.3 Lightweight Aggregates, Perlite or Vermiculite for Gypsum Base Coat

ASTM C35.

2.5.4 Silica Sand or Perlite Fines

For use in lime-putty gypsum-gauged finish, aggregated white coat, must have the following gradation: 10 percent maximum retained on a No. 30 sieve, 4 percent minimum and 70 percent maximum retained on a No. 100 sieve, and 70 percent minimum and 100 percent maximum retained on No. 200 sieve.

2.6 WATER

Use only potable water, free of mineral and organic substances that affect the hardening and durability of the plaster or stucco.

2.7 PROPORTIONING

Unless specified otherwise, materials are specified on a volume basis and must be measured in approved containers, to ensure that the specified proportions will be controlled and accurately maintained during the progress of the work. Measuring materials with shovels (shovel count) is not be permitted. Prepare ready-mix gypsum plaster for use by the addition of water only.

2.7.1 Gypsum Base Coat Plaster

Use of sand or lightweight aggregate is optional in gypsum plaster basecoats, except provide (1) sand for Keene's cement and high strength gypsum-gauged finish coats; (2) lightweight aggregate when necessary for a required fire resistance rating .

2.7.1.1 Sand and Gypsum Plaster Base Coat

Mix scratch coat in the proportion of 100 lb of gypsum neat plaster to not more than 2 cu ft of damp loose sand; mix brown coat in the proportion of 100 lb of gypsum neat plaster to not more than 3 cu ft of damp loose sand;

or scratch and brown coats may both be mixed in the proportion of 100 lb of gypsum neat plaster to not more than 2-1/2 cubic feet of damp loose sand. Mix the basecoats for double-up work in the proportion of 100 lb of gypsum neat plaster to not more than 2-1/2 cu ft of damp loose sand on gypsum lath and not more than 3 cu ft of damp loose sand on masonry.

2.7.1.2 Lightweight Aggregate and Gypsum Plaster Base Coat

Mix scratch coat in the proportion of 100 lb of gypsum neat plaster to not more than 2-1/2 cu ft of lightweight aggregate on gypsum lath, and not more than 3 cu ft of lightweight aggregate on masonry. Mix brown coat in the proportion of 100 lb of gypsum neat plaster to not more than 2-1/2 cu ft of lightweight aggregate on gypsum lath and not more than 3 cu ft of light weight aggregate on masonry. Where plaster thickness exceeds one inch, the aggregate proportion may be increased to 3 cu ft. Mix the basecoats in two-coat double-up work in the proportion of 100 lb of gypsum

SECTION 09 23 00 Page 7 neat plaster to not more than 2-1/2 cu ft of lightweight aggregate on gypsum lath and not more than 3 cu ft of lightweight aggregate on masonry.

Gypsum ready-mixed plaster with perlite aggregate may be provided in lieu of field-mixed lightweight aggregate and gypsum plaster, provided the specified proportion of aggregate to plaster does not exceed the proportion specified for field-mixed plaster.

2.7.1.3 Sand and Wood Fibered Gypsum Plaster Base Coat

Mix basecoats in the proportion of 100 lb of wood-fibered gypsum plaster to not more than one cu ft of damp loose sand.

2.7.1.4 Sand and High-Strength Gypsum Plaster Base Coat

Mix scratch coat in the proportion of 100 lb of high strength gypsum base coat plaster to not more than 2 cu ft of damp loose sand. Mix brown coat in the proportion of 100 lb of high strength gypsum basecoat plaster to not more than 3 cu ft of damp loose sand.

2.7.2 Gypsum Plaster Finish Coat

2.7.2.1 Lime-Putty

Prepare lime-putty in accordance with the printed directions of the manufacturer. Use putty following preparation or following a soaking period as recommended by the manufacturer.

2.7.2.2 Lime-Putty Gypsum-Gauged (White Coat)

Use over sand and gypsum plaster. Mix finish coat in the proportions of one part of gypsum gauging plaster to a volume of hydrated lime or lime putty.

This mix is approximately equivalent to one 100 lb bag of gypsum gauging plaster to:

a. Not more than four 50 lb bags of hydrated lime, or

b. Not more than 4-1/2 cu ft of lime putty, or

c. Not more than 35 gal of lime putty.

2.7.2.3 Aggregated Finish Coat

Finish coat must consist of the lime-putty, gypsum-gauged finish specified herein with the addition of fine pulverized silica sand or perlite fines in the following proportions:

a. 1/2 cu ft per 100 lb bag of gypsum gauging plaster used in finish, or

b. 1/8 cu ft per 50 lb bag of hydrated lime, or

c. one gal per cu ft of lime-putty.

2.7.2.4 Gypsum Sand Float Finish[ for [_____]]:

Mix finish in the proportion of one part neat unfibered gypsum plaster to not more than two parts of sand, by weight.

SECTION 09 23 00 Page 8

2.7.2.5 Keene's Cement Lime-Putty Finish[ for [_____]]

Mix finish in the proportion of not more than 100 lb of lime putty to 100 lb of Keene's cement.

2.7.2.6 High Strength Gypsum-Gauged Plaster Finish[ for [_____]]

Mix finish in the proportion of 200 lb of high strength gauging to 100 lb of hydrated lime.

2.7.2.7 Acoustical Plaster Finish[ for [_____]]

Mix finish in accordance with manufacturer's printed instructions.

2.8 MIXING

2.8.1 Job-Mixed Materials

Mix materials in mechanical mixers except finish coats containing lime may be hand mixed. Mechanical mixers must be an approved type that accurately and uniformly controls the quantity of water. When mixing by hand, mix dry plaster aggregate to a uniform color in the mixing box, add water, and hoe the plaster immediately into the water and mix thoroughly to a proper consistency.

2.8.1.1 Water

Water used for rinsing and cleaning containers and tools must not be used in mixing the materials.

2.8.1.2 Sand

Sand proportions must be damp and in loose condition. A volume of damp loose sand must contain a minimum of 80 lb of dry sand in one cu ft.

2.8.1.3 Mixing (Do's)

Mix the material while the mixer is in continuous operation in the following sequence:

a. Add maximum close to 90 percent of estimated quantity of water.

b. Add approximately one-half of the sand. If vermiculite or perlite is used, add all the aggregate.

c. Add cement and approved admixtures. [Add lime prior to cement.]

d. Add remainder of sand.

e. Mix with remainder of water as required. Mix until the mixture is uniform in color and consistency.

2.8.1.4 Mixing (Don'ts)

Avoid excessive mixing and agitation. Discard gypsum plaster which has begun to set before it is used; do not permit retempering. Do not use frozen, caked, or lumped materials. Empty mixers and mixing boxes after each batch is mixed, and keep free of old plaster.

SECTION 09 23 00 Page 9

2.8.2 Ready-Mixed Packaged Materials

Mix ready-mixed packaged gypsum plaster in accordance with manufacturer's printed instructions.

2.9 BONDING AGENT

ASTM C631, interior application.

PART 3 EXECUTION

3.1 SURFACE PREPARATION

Clean surfaces before application of gypsum plaster of projections, dust, loose particles, grease, bond breakers, and foreign matter. Do not apply plaster directly to surfaces (1) of masonry or concrete that have been coated with bituminous compound or other waterproofing agents, or (2) that have been painted or previously plastered. Before plaster work is started, wet masonry and concrete surfaces thoroughly with a fine fog spray of clean water to produce a uniformly moist condition. Check metal grounds, corner beads, screeds, and other accessories carefully for alignment before starting work. Do not apply gypsum plaster to surfaces containing frost.

3.2 WORKMANSHIP

3.2.1 Slump Tests

Apply Plaster by hand or machine. When a plastering machine is used, control the fluidity of gypsum plaster to have a slump of not more than 3 inch when tested using a 2 by 4 by 6 inch high slump cone. Subsequent to determining water content to meet the specified slump, do not add additional water to the mix. Conduct the slump test according to the following procedure:

a. Place cone on level, dry, non-absorptive base plate.

b. While holding cone firmly against base plate, fill cone with plaster taken directly from the hose or nozzle of the plastering machine, tamping with metal rod during filling to release air bubbles.

c. Screed off plaster level with top of cone. Remove cone by lifting it straight up with a slow and smooth motion.

d. Place cone in a vertical position adjacent to freed plaster sample, using care not to shake or move base plate.

e. Lay a straightedge across top of cone, being careful not to shake or move cone. Measure slump in inch from the bottom edge of the straightedge to the top of the slumped plaster sample.

3.2.2 Application

Apply gypsum plaster in three coats, except as follows:

Gypsum plaster applied to [masonry] [and] [gypsum lath] using the two-coat double-up method.

Apply base coats with sufficient pressure and ensure plaster is

SECTION 09 23 00 Page 10 sufficiently plastic to provide a strong bond to bases. Work base coats into screeds at intervals from 5 to 8 ft. Plaster must not be continuous across expansion and control joints occurring in walls, partitions, and ceilings. Finish work level, plumb, square, and true, within a tolerance of 1/8 inch in 8 ft, without waves, cracks, blisters, pits, crazing, discoloration, projections, or other imperfections. Form plaster work carefully around angles and contours, and well-up to screeds. Take special care to prevent sagging and consequent dropping of applications.

There must be no visible junction marks in finish coat where one day's work adjoins another.[ Plastered surfaces to receive[ rubber or vinyl base coves][ wood base boards] must extend to wood ground indicated as backing for base.] Plaster not required behind built-in cabinets and equipment[, and [_____]] unless part of a fire-rated assembly.

3.2.3 Control And Expansion Joints

[Install control joints at locations indicated before applying gypsum plaster. Vertical joints must be continuous and butt horizontal joints against the vertical joints. ]Check expansion, control joints and accessories to ensure unrestrained movement, metal lath not continuous behind the joints, and area between joints do not exceed 150 sq ft.

3.2.4 Curing

3.2.4.1 Gypsum Plaster

Before the plaster has set, provide environmental controls to prevent the plaster from drying too fast. After the plaster has set, provide for rapid drying to develop high strength.

3.3 GYPSUM PLASTER WORK

ASTM C842.

3.3.1 Gypsum Plaster Thickness Requirements

Plaster thicknesses are from face of metal lath plaster base (scratch coat) or solid base surfaces.

a. Vertical Surfaces

Base Types Base Coat Finish Coat Total Thickness

Metal Lath 1/2 inch 1/8 inch 5/8 inch

Masonry 1/2 inch 1/8 inch 5/8 inch

Concrete 1/2 inch 1/8 inch 5/8 inch

Other Bases 3/8 inch 1/8 inch 1/2 inch

b. Horizontal Surfaces. Total plaster thickness for metal lath plaster, masonry and concrete bases is 5/8 inch. Total thickness of plaster for horizontal concrete surfaces is 1/8 to 3/8 inch.

c. Where vertical and horizontal concrete surfaces require more than 5/8 inch and 3/8 inch, to produce required lines or surfaces, [attach

SECTION 09 23 00 Page 11 metal plaster base for plaster application] [as indicated].

3.3.2 Gypsum Plaster Basecoat Work

3.3.2.1 Gypsum Two-Coat System

Apply the first coat to cover the base with sufficient material and pressure to form a good bond on the wall or ceiling base. Before the first coat has set and without scratching or cracking the surface, apply a second coat (double back) of the same material proportion as the base coat to the screeds. Straighten to a true surface without application of water, and cross rake or scratch to receive the finish coat.

3.3.2.2 Gypsum Three-Coat System

Apply scratch coat 3/16 to 1/4 inch thick to cover the base with sufficient material and pressure to form a good bond on the wall or ceiling base. Rake or scratch the surface and allow to set firm and hard. Apply the brown coat to bring the base coat out to the screeds, compact and straighten to a true surface without the application of water, and cross rake or scratch to receive the finish coat.

3.3.3 Gypsum Plaster Finish Coats

Moderately moisten or fog spray base coat of plaster that has become dry before finish coat is applied. Accelerate plaster, if necessary, to provide a setting time of not more than 4 hours from the time the plaster is mixed.

3.3.3.1 Lime-Putty and Gypsum-Gauged Finish Coats

Apply lime-putty gypsum-gauged finish white coat or aggregated white coat [and high strength gypsum gauged finish] over the base coat, scratch in thoroughly, lay on well, double back, and fill out to a true, even surface. Allow the finish to dry a few minutes, then trowel well with water. Apply maximum pressure in order to compact the finish coat and provide a smooth finish free from blemishes and irregularities. Apply trowel finish coats of gypsum-gauged lime-putty over properly prepared base coats as thin as possible and 1/16 to 1/8 inch thick for conventional plaster system, except as necessary in spots to level out hollows in base coat.

3.3.3.2 Keene's Cement Lime-Putty Finish Coat

Apply finish over gypsum-sand base coat only, scratch in thoroughly, lay on well, double back, and fill out to a true, even surface. Allow the finish to dry a few minutes, then trowel it well with water. Apply maximum pressure in order to compact the finish coat and provide a smooth finish free of blemishes and irregularities. Continue troweling until the finish sets.

3.3.3.3 Gypsum Sand Float Finish Coat

Apply finish over the base coat, scratch in thoroughly, lay on with a trowel to an even surface, and then float with [_____] floats to a true, even surface, free of slick spots or other blemishes. Apply sand float finishes to a maximum thickness of 1/8 inch except as necessary to level out hollow spots.

SECTION 09 23 00 Page 12

3.3.3.4 Acoustical Plaster Finish Coat

Apply finish in accordance with manufacturer's printed instructions and in the thickness necessary to provide the sound absorption coefficient specified, but not be less than 1/2 inch thick.

3.4 ORNAMENTAL PLASTER WORK

Complete ornamental work before the finish coat of plaster is applied to adjoining areas. Plaster for ornamental work must consist of a mixture that will produce satisfactory results for the respective conditions, be reinforced properly with fiber or zinc-coated steel wire netting as necessary to provide permanent construction, and be rigidly secured in place. Run plain moldings in place to templates and guides, with true radial lines for curved work; where it is not practicable to run such moldings, cast or run them on a bench and then secure in place firmly.

Cornices and moldings must be straight or curved, true to line, and corners neat.

3.5 PATCHING AND POINTING

Cut out and patch loose, cracked, damaged, or defective gypsum plaster.

Patch must match existing work in texture, color and finish flush with previously applied gypsum plaster surfaces. Point work abutting or adjoining finish work in a neat manner. Remove droppings or spatterings from surfaces. Leave clean and in a condition to receive paint or other finish. Remove protective covering from floors and other surfaces, and rubbish and debris from [the interior and exterior of] the building.

SECTION 09 23 00 Page 13

DIVISION 09 - FINISHES

SECTION 09 23 82

FIREPROOF GYPSUM PLASTERING

PART 1 GENERAL

1.1 REFERENCES

1.2 ADMINISTRATIVE REQUIREMENTS

1.2.1 Pre-Installation Meetings

1.3 SUBMITTALS

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 QUALITY CONTROL

1.5.1 Catalog Data

1.5.2 Plaster Sample

1.5.3 Drawing Requirements

1.5.4 Four Hour Fire Rated Construction

1.5.5 Mockups

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Fireproof Plaster

2.1.2 Water

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Application

3.2 ADJUSTING AND CLEANING

SECTION 09 23 82 Page 1

SECTION 09 23 82

FIREPROOF GYPSUM PLASTERING

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM E84 (2020) Standard Test Method for Surface Burning Characteristics of Building Materials

ASTM E119 (2020) Standard Test Methods for Fire Tests of Building Construction and Materials

ASTM E605 (1993; R 2011) Thickness and Density of Sprayed Fire-Resistive Material (SFRM) Applied to Structural Members

ASTM E736 (2000; R 2011) Cohesion/Adhesion of Sprayed Fire-Resistive Materials Applied to Structural Members

ASTM E761/E761M (1992; R 2020) Standard Test Method for Compressive Strength of Sprayed Fire-Resistive Material Applied to Structural Members

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2021) International Building Code

1.2 ADMINISTRATIVE REQUIREMENTS

1.2.1 Pre-Installation Meetings

Within 30 days of Contract Award, the Contracting Officer will schedule a Pre-Installation meeting. Submit the following for review and approval at the Pre-Installation meeting:

a. Installation Drawings

b. Manufacturer's Catalog Data

c. Fireproofing Plaster Sample

d. Certificates of Conformance

e. Special Provisions

SECTION 09 23 82 Page 2

1.3 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

Installation Drawings; G

SD-03 Product Data

Manufacturer's Catalog Data; G

SD-04 Samples

Fireproofing Plaster Sample; G

Mockups; G

SD-07 Certificates

Certificates of Conformance; G

SD-08 Manufacturer's Instructions

Manufacturer's Instructions; G

Special Provisions; G

1.4 DELIVERY, STORAGE, AND HANDLING

Deliver materials in original unopened packages bearing the name of the product, manufacturer's name, and the Underwriters Laboratories, Inc.

label.

Store materials off the ground, under cover, and away from damp surfaces and keep dry until ready to use. Discard all materials that have been exposed to water before use.

1.5 QUALITY CONTROL

1.5.1 Catalog Data

Submit manufacturer's catalog data for fireproof plaster showing applicable flame spread classification, fuel contribution, and smoke developed.

1.5.2 Plaster Sample

Submit no less than 1/2 pound of Fireproofing Plaster Sample for review and approval.

SECTION 09 23 82 Page 3

1.5.3 Drawing Requirements

Submit installation drawings indicating the fireproof plaster, framing and furring as indicated and specified. Ensure components of the installation drawings meet the requirements of indicated and specified fireproofing.

1.5.4 Four Hour Fire Rated Construction

Prior to the commencement of work, submit certificates of conformance for fireproof plaster showing conformance with the ICC IBC , "International Building Code", "Requirements for Four-Hour Construction". Submit manufacturer's instructions for Fireproof Plaster including special provisions required to install equipment components and system packages.

Indicate all detail impedances, hazards and safety precautions on drawings.

1.5.5 Mockups

Build mockups to demonstrate aesthetic effects and to set quality standards for materials and execution.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Fireproof Plaster

Provide gypsum-vermiculite fireproof plaster mix, consisting of one part gypsum to two parts vermiculite, conforming to ICC IBC , "Requirements for 4-Hour Construction".

Ensure cohesion of the dry set material is such that the fireproofing coat will not crack or delaminate when the structural steel element is subjected to a downward deflection of 1/120 of the span, and the minimum compressive strength requirement in accordance with ASTM E761/E761M is not less than 70 pounds per square inch.

Provide set and dried material, which when tested in accordance with ASTM E84, yields the following characteristics:

a. Flame spread 10

b. Fuel contributed 5

c. Smoke developed 0

2.1.2 Water

Use only potable water for mixing.

PART 3 EXECUTION

3.1 INSTALLATION

Apply fireproofing plaster as specified to those areas indicated on drawings. Install per details as indicated on drawings.

3.1.1 Application

Provide trowelled application of fireproofing plaster in accordance with

SECTION 09 23 82 Page 4 material manufacturer's written recommendations and ASTM E736. Provide thickness of application as indicated and in compliance with ASTM E605 and the applicable fire and local codes to provide rated fireproofing when tested in accordance with ASTM E119.

Provide framing and furring that meets the requirements of 09 22 00, and as recommended by manufacturer for the installation of the fireproofing plaster thickness requiredas indicated in the drawings.

3.2 ADJUSTING AND CLEANING

After completion of fireproofing work, remove all application equipment.

Clean all areas of ceilings, walls, and floors, adjacent or exposed to the operations of application of the fireproofing material, and other surfaces and finishes that may have been soiled by fireproofing materials.

Remove any damaged or unacceptable portions of the fireproofing plaster and replace with new work at no additional cost to the Government.

SECTION 09 23 82 Page 5

DIVISION 09 - FINISHES

SECTION 09 24 23

CEMENT STUCCO

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALITY ASSURANCE

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 ENVIRONMENTAL REQUIREMENTS

PART 2 PRODUCTS

2.1 PORTLAND CEMENT

2.2 COLORED STUCCO FINISH COAT

2.3 LIME

2.4 SAND

2.5 ACCESSORIES

2.6 STEEL FRAMING

2.7 METAL LATH

2.8 WATER

2.9 HANGERS

2.9.1 Wires

2.9.2 Straps

2.9.3 Rods

2.9.4 Eyebolts

2.9.5 Masonry Anchorage Devices

PART 3 EXECUTION

3.1 INSTALLATION

3.2 FRAMING

3.3 CONTROL JOINTS

3.4 LATH

3.4.1 Steel and Wood Supports

3.4.2 On Concrete and Masonry

3.4.3 Over Metal Lintels and Flashings

3.4.4 Special Shapes, Profiles, and Contours

3.5 FURRING

3.6 PREPARATION OF SURFACES

3.7 PROPORTIONS AND MIXING

3.8 STUCCO APPLICATION

3.8.1 Workmanship

3.8.2 Scratch Coat

3.8.3 Brown Coat

3.8.4 Finish Coat

3.8.5 Surface Tolerance

3.9 CURING AND PROTECTION

3.10 PATCHING AND POINTING

SECTION 09 24 23 Page 1

SECTION 09 24 23 Page 2

SECTION 09 24 23

CEMENT STUCCO

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM A489 (2018; E 2018) Standard Specification for Carbon Steel Eyebolts

ASTM A641/A641M (2019) Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire

ASTM A653/A653M (2020) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A1008/A1008M (2021a) Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable

ASTM A1064/A1064M (2017) Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

ASTM B633 (2019) Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel

ASTM C150/C150M (2022) Standard Specification for Portland Cement

ASTM C206 (2014) Standard Specification for Finishing Hydrated Lime

ASTM C636/C636M (2013) Standard Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels

ASTM C841 (2003; R 2013) Installation of Interior Lathing and Furring

ASTM C847 (2014a) Standard Specification for Metal Lath

SECTION 09 24 23 Page 3

ASTM C897 (2015; R 2020) Aggregate for Job-Mixed Portland Cement-Based Plasters

ASTM C926 (2022) Standard Specification for Application of Portland Cement-Based Plaster

ASTM C933 (2014) Welded Wire Lath

ASTM C1032 (2014) Standard Specification for Woven Wire Plaster Base

ASTM C1063 (2022) Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster

ASTM D1784 (2020) Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds

1.2 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

Lath

SD-03 Product Data

Proportions and Mixing

Recycled percentage of fly ash in Portland cement; S

Recycled Content for steel framing; S

Recycled Content for metal lath; S

SD-04 Samples

Colored Stucco Finish Coat

Sample Panel; G

1.3 QUALITY ASSURANCE

Submit a SAMPLE PANEL as follows: One 12 inch square stucco panel showing finish texture and color and exposed reinforcement at the edges, one 12

SECTION 09 24 23 Page 4 inch square of reinforcement, and a 12 inch length of each accessory proposed, prior to proceeding with stucco work.

1.4 DELIVERY, STORAGE, AND HANDLING

Deliver packaged materials to the site in the original packages and containers with labels intact and seals unbroken. Keep cementitious materials dry and stored off the ground, under cover and away from damp surfaces until ready to be used. Aggregate must be covered to prevent the absorption or loss of moisture.

1.5 ENVIRONMENTAL REQUIREMENTS

Do not apply stucco when the ambient temperature is 40 degrees F or lower, or when a drop in temperature below 40 degrees F is expected within 48 hours after application.

PART 2 PRODUCTS

2.1 PORTLAND CEMENT

Portland cement must conform to ASTM C150/C150M, gray Portland cement Type II .