36C78619Q0347-003.pdf

06-01-14

FINISH CARPENTRY

06 20 00 - 1

SECTION 06 20 00

FINISH CARPENTRY

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies interior millwork.

1.2 RELATED WORK

A. Wood doors: Section 08 14 00, WOOD DOORS.

1.3 PERFORMANCE REQUIREMENTS

A. Engineered Wood Products:

1. Provide products with no added urea formaldehyde; determine formaldehyde concentrations in air from wood products under test conditions of temperature and relative humidity in accordance with

ASTM D6007 or E1333.

2. Bio-based Content:

a. Interior Panels: Engineered products designed specifically for interior applications and providing a surface that is impact-, scratch-, and wear-resistant and that does not absorb or retain moisture; provide minimum 55 percent bio-based content.

b. Structural Interior Panels: Engineered products designed for use in structural construction applications; provide minimum 89 percent bio-based content.

3. VOC Emissions:

a. Provide low VOC products with Green Seal Certification to GS-36 and description of the basis for certification.

1.4 SUBMITTALS

A. Provide documentation of conformance with performance requirements of this section.

B. Shop Drawings:

1. Millwork: Half size scale for sections and details; 1:50 (1/4-inch) for elevations and plans.

2. Indicate materials and details of construction, methods of fastening, erection, and installation.

C. Samples:

1. Plastic laminate, finished plywood or particleboard, 150 mm by 300 mm (6 by 12 inches).

D. Certificates:

1. Indicate preservative treatment of materials meet the requirements specified.

06 20 00 - 2

2. Indicating moisture content of materials meet the requirements specified.

E. List of acceptable sealers for fire retardant and preservative treated materials.

F. Manufacturer's literature and data:

1. Finish hardware.

2. Sinks with fittings.

3. Electrical components.

1.5 DELIVERY, STORAGE AND HANDLING

A. Protect lumber and millwork from dampness, maintaining moisture content specified both during and after delivery at site.

B. Store finishing lumber and millwork in weathertight well ventilated structures or in space in existing buildings designated by RE/COR.

Store at a minimum temperature of 210C (700F) for not less than 10 days before installation.

C. Pile lumber in stacks in such manner as to provide air circulation around surfaces of each piece.

1.6 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by the basic designation only. Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.

B. American Society of Testing and Materials (ASTM):

A167-99(2009) Stainless and Heat-Resisting Chromium-Nickel

Steel Plate, Sheet, and Strip

B26/B26M-12 Aluminum-Alloy Sand Castings

B221-13 Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

D6007-02 Determining Formaldehyde Concentration in Air from Wood Products Using a Small Scale Chamber

E1333-10 Determining Formaldehyde Concentrations in Air and Emission Rates from Wood Products Using a

Large Chamber

C. American Hardboard Association (AHA):

A135.4-12 Basic Hardboard

D. American Lumber Standard Committee, Incorporated (ALSC):

ALSC Board of Review

E. American National Standards Institute (ANSI):

06 20 00 - 3

NPA A208.1-2009 Particleboard (published by National

Particleboard Association/Composite Panel

Association)

Z124.3-05 Plastic Lavatories

F. American Society of Mechanical Engineers (ASME):

B18.2.1-2012 Square, Hex, Heavy Hex and Askew Head Bolts and

Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag

Screws

B18.2.2-2010 Nuts for General Applications: Machine Screw

Nuts, Hex, Square, Hex Flange, and Coupling

Nuts (Inch Series)

G. American Wood-Preservers’ Association (AWPA)

H. Architectural Woodwork Institute (AWI):

Architectural Woodwork Standards and Quality Certification Program

(2009)

I. Builders Hardware Manufacturers Association (BHMA):

A156.9-10 Concealed Cabinet Hardware

A156.11-10 Cabinet Locks

A156.16-02 Auxiliary Hardware

A156.18-12 Exposed Cabinet Hardware

J. Green Seal (GS):

GS-36 (2013) Commercial Adhesives

K. Hardwood Plywood and Veneer Association (HPVA):

HP-1-2011 Hardwood Plywood Handbook

L. National Electrical Manufacturers Association (NEMA):

LD 3-05 High-Pressure Decorative Laminates

M. National Hardwood Lumber Association (NHLA)

N. South Coast Air Quality Management District (SCAQMD):

SCAQMD Rule 1168 (1989; R2005) Adhesive and Sealant Applications

O. U.S. Department of Commerce/National Institute of Science and

Technology:

PS1-09 Construction and Industrial Plywood

PS20-10 American Softwood Lumber Standard

PART 2 - PRODUCTS

2.1 LUMBER

A. Grading and Marking:

1. Lumber to bear the grade mark, stamp, or other identifying marks indicating grades of material.

06 20 00 - 4

2. Such identifying marks on a material to be in accordance with the rule or standard under which the material is produced, including requirements for qualifications and authority of the inspection organization, usage of authorized identification, and information included in the identification.

3. The inspection agency for lumber to be approved by the Board of

Review, American Lumber Standards Committee, to grade species used.

B. Sizes:

1. Lumber size references, unless otherwise specified, are nominal sizes; actual sizes to be within manufacturing tolerances allowed by the standard under which product is produced.

2. Millwork, standing and running trim, and rails: Actual size as shown or specified.

C. Hardwood: FAS Grade of NHLA, species as specified for each item.

D. Softwood: PS-20, exposed to view appearance grades:

1. Use C select or D select, vertical grain for transparent finish including stain transparent finish.

2. Use Prime for painted or opaque finish.

E. Use edge grain wood members exposed to weather.

2.2 PLYWOOD

A. Softwood Plywood:

1. Prod. Std.

2. Grading and Marking:

a. Each sheet of plywood must bear the mark of a recognized association or independent inspection agency that maintains continuing control over the quality of the plywood.

b. The mark must identify the plywood by species group or identification index, and show glue type, grade, and compliance with PS1.

3. Plywood, 13 mm (1/2 inch) and thicker; not less than five ply construction, except 32 mm (1-1/4 inch) thick plywood not less than seven ply.

4. Plastic Laminate Plywood Cores:

a. Exterior Type, any species group.

b. Veneer Grade: A-C.

5. Shelving Plywood:

a. Interior Type, any species group.

b. Veneer Grade: A-B or B-C.

06 20 00 - 5

6. Other: As specified for item.

B. Hardwood Plywood:

1. HPVA: HP-1.

2. Species of Face Veneer: As shown or as specified in connection with each particular item.

3. Inside of Building:

a. Use Type II (interior) A grade veneer for transparent finish.

b. Use Type II (interior) Sound Grade veneer for paint finish.

4. On Outside of Building:

a. Use Type I, (exterior) A Grade veneer for natural or stained and varnish finish.

b. Use Type I, (exterior) Sound Grade veneer for paint finish.

5. Use plain sliced red oak unless specified otherwise.

2.3 PARTICLEBOARD

A. ANSI NPA A208.1

B. Plastic Laminate Particleboard Cores:

1. Use Type 1, Grade 1-M-3, or Type 2, Grade 2-M-2, unless otherwise specified.

2. Use Type 2, Grade 2-M-2, exterior bond, for tops with sinks.

C. General Use: Type 1, Grade 1-M-3 or Type 2, Grade 2-M-2.

D. Do not use product with urea formaldayhyde.

2.4 PLASTIC LAMINATE

A. NEMA LD-3.

B. Exposed decorative surfaces including countertops, both sides of cabinet doors, and for items having plastic laminate finish; General

Purpose, Type HGL.

C. Cabinet Interiors including Shelving: Both of following options to comply with NEMA CLS Grade, as a minimum.

1. Plastic laminate clad plywood or particle board.

2. Resin impregnated decorative paper thermally fused to particle board.

D. Backing sheet on bottom of plastic laminate covered wood tops: Backer, Type HGP.

E. Plastic Laminate Work:

1. Factory glued to a plywood or particle board core, thickness as shown or specified.

2. Cover exposed edges with plastic laminate, except where aluminum, stainless steel, or plastic molded edge strips are shown or

06 20 00 - 6 specified. Use plastic molded edge strips on 19 mm (3/4-inch) molded thick or thinner core material.

3. Provide plastic backing sheet on underside of countertops, thru-wall counter, including back splashes and end splashes of countertops.

4. Use backing sheet on concealed large panel surface when decorative face does not occur.

F. Counter or Work Tops:

1. Fabrication with plastic laminate over 32 mm (1-1/4 inch) thick core unless shown otherwise.

a. Use decorative laminate for exposed edges of tops 38 mm (1-1/2 inches) wide and on back splash and end splash. Use plastic or metal edges for top edges less than 38 mm (1-1/2 inches) wide.

b. Assemble back splash and end splash to counter top.

c. Use one piece counters for straight runs.

d. Miter corners for field joints with overlapping blocking on underside of joint.

2.5 SOLID SURFACE COUNTERTOPS

A. Comply with AWI Section 400 and ANSI Z124.3 requirements for countertops.

2.6 BUILDING BOARD (HARDBOARD)

A. ANSI/AHA A135.4.

2.7 ADHESIVE

A. Product compliant with performance requirements.

2.8 STAINLESS STEEL

A. ASTM A167, Type 302 or 304.

2.9 ALUMINUM CAST

A. ASTM B26.

2.10 ALUMINUM EXTRUDED

A. ASTM B221.

2.11 HARDWARE

A. Rough Hardware:

1. Furnish rough hardware with a standard plating, applied after punching, forming and assembly of parts; galvanized, cadmium plated, or zinc-coated by electric-galvanizing process. Provide galvanized where indicated.

2. Use galvanized coating on ferrous metal for exterior work unless non-ferrous metals or stainless is used.

3. Fasteners:

06 20 00 - 7

a. Bolts with Nuts: ASME B18.2.1 and ASME B18.2.2.

b. Screws: ASMC B18.6.1.

B. Finish Hardware:

1. Cabinet Hardware: ANSI A156.9.

a. Door/Drawer Pulls: B02011. Door in seismic zones: B03182.

b. Drawer Slides: B05051 for drawers over 150 mm (6 inches) deep, B05052 for drawers 75 mm to 150 mm 3 to 6 inches) deep, and

B05053 for drawers less than 75 mm (3 inches) deep.

c. Sliding Door Tracks: B07063.

d. Adjustable Shelf Standards: B4061 with shelf rest B04083.

e. Concealed Hinges: B1601, minimum 110 degree opening.

f. Butt Hinges: B01361, for flush doors, B01381 for inset lipped doors, and B01521 for overlay doors.

g. Cabinet Door Catch: B0371 or B03172.

h. Vertical Slotted Shelf Standard: B04103 with shelf brackets

B04113, sized for shelf depth.

2. Cabinet Locks: ANSI A156.11.

a. Drawers and Hinged Door: E07262.

b. Sliding Door: E07162.

3. Primers: Manufacturer's standard primer for steel providing baked enamel finish.

2.12 MOISTURE CONTENT

A. Moisture content of lumber and millwork at time of delivery to site.

1. Moisture content of other materials to be in accordance with the standards under which the products are produced.

2.13 FIRE-RETARDANT TREATMENT

A. Fire-retardant-treated wood products to be free of halogens, sulfates, ammonium phosphate and formaldehyde.

B. Fire retardant treatment of wood products to conform to the requirements of AWPA Standard U1, Commodity Specification H and AWPA

Standard T1, Section H.

2.14 FABRICATION

A. General:

1. Provide interior woodwork complying with referenced quality standard.

2. Use AWI Custom Grade for architectural woodwork and interior millwork, except as otherwise indicated.

3. Finish woodwork must be free from pitch pockets.

06 20 00 - 8

4. Provide trim as standard stock molding and members of the same species, except where special profiles are shown.

5. Plywood cannot be less than 13 mm (1/2 inch), unless otherwise shown or specified.

6. Edges of members in contact with concrete or masonry to have a square corner caulking rebate.

7. Fabricate members less than 4 m (14 feet) in length from one piece of lumber, back channeled and molded as shown.

8. Plastic Laminate Work:

a. Factory glued to plywood or particle board core, thickness as shown or specified.

b. Cover exposed edges with plastic laminate, except where aluminum, stainless steel, or plastic molded edge strips are shown or specified. Use plastic molded edge strips on 19 mm (3/4-inch) molded thick or thinner core material.

c. Provide plastic backing sheet on underside of countertops, vanity tops, thru-wall counter including back splashes and end splashes of countertops.

d. Use backing sheet on concealed large panel surface when decorative face does not occur.

PART 3 - EXECUTION

3.1 ENVIRONMENTAL REQUIREMENTS

A. Maintain work areas and storage areas to a minimum temperature of 210C

(700F) for not less than 10 days before and during installation of interior millwork.

B. Do not install finish lumber or millwork in any room or space where wet process systems such as concrete, masonry, or plaster work are not complete and dry.

3.2 INSTALLATION

A. General:

1. Install to comply with AWI 1700.

2. Millwork receiving transparent finish to be primed and back-painted on concealed surfaces; do not set millwork until primed and back-painted.

3. Secure trim with fine finishing nails, screws, or glue as required.

4. Set nails for putty stopping. Use washers under bolt heads where no other bearing plate occurs.

06 20 00 - 9

5. Seal cut edges of preservative and fire retardant treated wood materials with a certified acceptable sealer.

6. Coordinate with plumbing and electrical work for installation of fixtures and service connections in millwork items.

7. Plumb and level items unless shown otherwise.

8. Nail finish at each blocking, lookout, or other nailer and intermediate points; toggle or expansion bolt in place where nails are not suitable.

9. Exterior Work: Provide joints that are close fitted, mitered, tongue and grooved, rebated, or lapped to exclude water filled and sealed.

10. Install woodwork plumb and level to a tolerance of 3 mm in 2400 mm

(1/8 inch in 96 inches).

B. Install with butt joints in straight runs and miter at corners.

- - - E N D - - -

12-01-15

INTERIOR WOOD DOORS

08 14 00 - 1

SECTION 08 14 00

INTERIOR WOOD DOORS

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies stile and rail doors.

B. Section includes fire rated doors.

1.2 RELATED WORK

A. Door hardware including hardware location (height): Section 08 71 00, DOOR HARDWARE.

1.3 SUBMITTALS

A. Shop Drawings:

1. Provide information concerning specific requirements not included in the manufacturer's literature and data submittal.

B. Manufacturer's Literature and Data:

1. Labeled fire rated doors showing conformance with NFPA 80.

C. Laboratory Test Reports:

1. Screw holding capacity test report in accordance with WDMA T.M.10.

2. Split resistance test report in accordance with WDMA T.M.5.

3. Cycle/Slam test report in accordance with WDMA T.M.7.

4. Hinge-Loading test report in accordance with WDMA T.M.8.

1.4 WARRANTY

A. Doors are subject to terms of Article titled “Warranty of

Construction”, FAR clause 52.246-21, except that warranty to be as follows:

1. For interior doors, manufacturer’s warranty for lifetime of original installation.

1.5 DELIVERY AND STORAGE

A. Factory seal doors and accessories in cardboard packages; keep packaging intact during delivery and storage.

B. Label package for door opening where used.

C. Do not deliver or install doors until spaces are enclosed and weathertight, wet work in spaces is complete and dry, and HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during the remainder of the construction period.

D. Store doors flat on level raised platforms in clean, dry, well-ventilated area protected from sunlight and weather; cover but allow for air circulation.

08 14 00 - 2

1.7 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by the basic designation only. Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.

B. Window and Door Manufacturers Association (WDMA):

I.S.1A-11 Architectural Wood Flush Doors

I.S.4-09 Water-Repellent Preservative Non-Pressure

Treatment for Millwork

I.S.6A-11 Architectural Wood Stile and Rail Doors

T.M.5-90(2009) Split Resistance Test Method

T.M.7-08 Cycle-Slam Test Method

T.M.8-08 Hinge Loading Test Method

T.M.10-08 Screwholding Test Method

C. National Fire Protection Association (NFPA):

80-13 Protection of Buildings from Exterior Fire

252-12 Fire Tests of Door Assemblies

SPEC WRITER NOTES:

1. Make material requirements agree with applicable requirements specified in the referenced Applicable Publications.

2. Update and specify only that which applies to the project.

PART 2 - PRODUCTS

2.1 FLUSH DOORS

A. General:

1. Meet requirements of WDMA I.S.1-A, solid core.

2. Thickness: 45 mm (1-3/4 inches) unless otherwise shown or specified.

B. Face Veneer:

1. In accordance with WDMA I.S.1-A.

2. One species throughout the project unless scheduled or otherwise shown.

3. For Transparent Finishes: Premium Grade, rotary cut, red oak.

a. Grade: Custom (Grade A).

b. Match face veneers for doors for uniform effect of color and grain at joints.

c. Provide door edges of same species as door face veneer.

08 14 00 - 3

d. In existing buildings, where doors are required to have transparent finish, use wood species and grade of face veneers to match adjacent existing doors.

C. Wood for stops, louvers, muntins and moldings of flush doors required to have transparent finish:

1. Solid Wood of same species as face veneer, except maple may be used on birch doors.

D. Stiles and Rails:

1. Option for wood stiles and rails:

a. Composite material having screw withdrawal force greater than minimum performance level value when tested in accordance with

WDMA T.M.10.

E. Fire Rated Wood Doors:

1. Fire Performance Rating:

a. “B” Label: 1-1/2 hours.

2. Labels:

a. Conform to the requirements of NFPA 252 and carry an identifying label, from a qualified testing and inspection agency, for class of door or opening shown designating fire performance rating.

b. Metal labels with raised or incised markings.

3. Performance Criteria for Stiles of doors utilizing standard mortise leaf hinges:

a. Hinge Loading: WDMA T.M.8. Average of 10 test samples for Extra

Heavy Duty doors.

b. Direct Screw Withdrawal: WDMA T.M.10 for Extra Heavy Duty doors.

Average of 10 test samples using a steel, fully threaded #12 wood screw.

c. Cycle Slam: 1,000,000 cycles with no loose hinge screws or other visible signs of failure when tested in accordance with WDMA

T.M.7.

4. Additional Hardware Reinforcement:

a. Provide fire rated doors with hardware reinforcement blocking.

b. Size of lock blocks as required to secure hardware specified.

c. Top, bottom, and intermediate rail blocks must measure not less than 125 mm (five inches) by full core width.

d. Reinforcement blocking in compliance with manufacturer's labeling requirements.

e. Mineral material similar to core is not acceptable.

08 14 00 - 4

5. Other Core Components: Manufacturer's standard as allowed by the labeling requirements.

6. Provide steel frame approved for use in labeled doors for vision panels.

7. Provide steel astragal on pair of doors.

2.2 STILE AND RAIL DOORS

A. Meeting requirements of WDMA I.S.6A.

B. Veneer to match flush doors.

C. Grade: Premium.

D. Door Panels:

1. Grain of face of panels parallel with longest dimensions of panel.

2. Flat Panels: Veneered composite core, not less than 6 mm (5/8 inch) thick.

3. Raised Panels: Unless otherwise shown, thickness of raised panels not less than the following:

a. For 35 mm (1-3/8 inch) and 45 mm (1-3/4 inch) thick doors: 28 mm

(1-1/8 inch) thick panels.

b. For 57 mm (2-1/4 inch) thick doors: 41 mm (1-5/8 inch) thick panels.

4. Where armor plate is required in connection with paneled doors, provide panels with plywood fillers, glued in place, and finished.

E. Stops and Molds:

1. Solid sticking both sides, of same material as stiles and rails, coped at intersections.

2. Glazed openings applied wood stops nailed on interior side of door.

2.3 PREFITTING

A. Flush doors may be factory machined to receive hardware, bevels, undercuts, cutouts, accessories and fitting for frame.

B. Factory fitting to conform to specification for shop and field fitting, including factory application of sealer to edge and routings.

2.3 FACTORY FINISHING

A. Grade: Premium.

B. Finish: System 9, UV curable, acrylated epoxy, polyester, or urethane.

C. Effect: Semifilled finish, produced by applying an additional finish coat to partially fill the wood pores.

D. Sheen: Satin.

E. Use stain when required to produce the finish specified.

08 14 00 - 5

2.4 IDENTIFICATION MARK

A. Provide on top edge of door.

B. Provide as a stamp, brand or other indelible mark, giving manufacturer’s name, door’s trade name, construction of door, code date of manufacture and quality.

C. Include one of the following additional requirements:

1. An identification mark or a separate certification including name of inspection organization.

2. Identification of standards for door, including glue type.

3. Identification of veneer and quality certification.

4. Identification of preservative treatment for stile and rail doors.

2.5 BIOBASED CONTENT

Interior Wood Door Products shall comply with following standards for biobased materials:

Material Type Percent by Weight

Lumber 25 percent biobased material

Composite Panels- Structural Interior Panels

89 percent biobased material

The minimum-content standards are based on the weight (not the volume) of the material in the insulating core only.

PART 3 - EXECUTION

3.1 DOOR PREPARATION

A. Factory Preparation: Do not violate the qualified testing and inspection agency label requirements for fire rated doors.

B. Clearances between Doors and Frames and Floors:

1. Maximum 3 mm (1/8 inch) clearance at the jambs, heads, and meeting stiles, and a 19 mm (3/4 inch) clearance at bottom, except as otherwise specified.

2. Maximum clearance at bottom of sound rated doors, light-proofed doors, doors to operating rooms, and doors designated to be fitted with mechanical seal: 10 mm (3/8 inch).

C. Rout doors for hardware using templates and location heights specified in Section, 08 71 00 DOOR HARDWARE.

D. Fit doors to frame, bevel lock edge of doors 3 mm (1/8 inch) for each

50 mm (two inches) of door thickness.

08 14 00 - 6

E. Immediately after fitting and cutting of doors for hardware, seal cut edges of doors with two coats of water resistant sealer.

F. Finish surfaces, including both faces, top and bottom and edges of the doors smooth to touch.

3.2 INSTALLATION

A. Hardware: See Section 08 71 00, DOOR HARDWARE.

B. Installation Instructions: Install doors to comply with manufacturer's written instructions and the referenced quality standard, and as indicated.

1. Install fire-rated doors in corresponding fire-rated frames according to NFPA 80.

C. Factory-Fitted Doors: Align in frames for uniform clearance at each edge.

D. Factory-Finished Doors: Restore finish before installation if fitting or machining is required at Project site.

3.3 DOOR PROTECTION

A. As door installation is completed, place cardboard shipping container over door and tape in place.

B. Provide protective covering over knobs and handles in addition to covering door.

C. Maintain covering in good condition until removal is approved by

RE/COR.

DOOR HARDWARE

08 71 00 - 1

SECTION 08 71 00

DOOR HARDWARE

PART 1 - GENERAL

1.1 DESCRIPTION

A. Door hardware and related items necessary for complete installation and operation of doors.

1.2 RELATED WORK

A. Application of Hardware: Section 08 14 00, INTERIOR WOOD DOORS.

1.3 GENERAL

A. All hardware must comply with UFAS, (Uniform Federal Accessible

Standards) unless specified otherwise.

B. Provide rated door hardware assemblies where required by most current version of the International Building Code (IBC).

C. Hardware for Labeled Fire Doors and Exit Doors: Conform to requirements of NFPA 80 for labeled fire doors, as well as to other requirements specified. Provide hardware listed by UL, except where heavier materials, large size, or better grades are specified herein under paragraph HARDWARE SETS. Instead of UL labeling and listing, test reports from a nationally recognized testing agency may be submitted showing that hardware has been tested in accordance with UL test methods and that it conforms to NFPA requirements.

D. Make hardware for application on metal and wood doors and frames to standard templates. Furnish templates to the fabricator of these items in sufficient time so as not to delay the construction.

E. The following items to be of the same manufacturer, if possible, except as otherwise specified:

1. Mortise locksets.

2. Hinges for hollow metal and wood doors.

3. Surface applied overhead door closers.

4. Exit devices.

1.4 SUBMITTALS

A. Hardware Schedule: Prepare and submit hardware schedule in the following form:

Hardware Item

Quantity Size Reference Publication Type No.

Finish Mfr. Name and Catalog

No.

Key Control Symbols

UL Mark (if fire rated and listed)

ANSI/BHMA

Finish

Designation

08 71 00 - 2

B. Manufacturers' Literature:

1. Samples are not required for hardware listed in the specifications by manufacturer's catalog number, if the contractor proposes to use the manufacturer's product specified.

C. Certificate of Compliance and Test Reports: Submit certificates that hardware conforms to the requirements specified herein. Certificates must be accompanied by copies of reports as referenced. The testing must have been conducted in the manufacturer's plant and certified by an independent testing laboratory or conducted in an independent laboratory, within four years of submittal of reports for approval.

1.5 DELIVERY AND MARKING

A. Deliver items of hardware to job site in their original containers, complete with necessary appurtenances including screws, keys, and instructions. Tag one of each different item of hardware and deliver to

RE/COR for reference purposes. Tag must identify items by Project

Specification number and manufacturer's catalog number. These items will remain on file in RE/COR's office until all other similar items have been installed in project, at which time the RE/COR will deliver items on file to Contractor for installation in predetermined locations on the project.

1.6 INSTRUCTIONS

A. Keying: Key cylinders into existing Master Key System. Provide removable core cylinders that are removable only with a special key or tool without disassembly of knob or lockset. Provide // 6 // 7 // pin type cylinders. Keying information will be furnished at a later date by the RE/COR.

1.7 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by the basic designation only. Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.

B. American National Standards Institute/Builders Hardware Manufacturers

Association (ANSI/BHMA):

A156.1-13 Butts and Hinges

A156.2-11 Bored and Pre-assembled Locks and Latches

A156.3-01 Exit Devices

08 71 00 - 3

A156.4-08 Door Controls (Closers)

A156.5-10 Auxiliary Locks and Associated Products

A156.6-10 Architectural Door Trim

A156.8-10 Door Controls-Overhead Stops and Holders

A156.13-12 Mortise Locks and Latches

A156.15-11 Release Devices-Closer Holder, Electromagnetic and Electromechanical

A156.16-02 American National Standard for Auxiliary

Hardware

A156.18-12 Materials and Finishes

A156.21-09 Thresholds

A156.22-12 Door Gasketing and Edge Seal Systems

A156.23-10 Electromagnetic Locks

A156.24-12 Delayed Egress Locking Systems

A156.26-12 Continuous Hinges

A156.31-01 Electric Strikes and Frame Mounted Actuators

C. American Society for Testing and Materials (ASTM):

F883-09 Padlocks

D. Builders Hardware Manufacturers Association (BHMA):

Certified Products Directory 2014

E. National Fire Protection Association (NFPA):

80-13 Fire Doors and Fire Windows

101-12 Life Safety Code

F. Underwriters Laboratories, Inc. (UL):

Building Materials Directory

PART 2 - PRODUCTS

2.1 BUTT HINGES

A. ANSI A156.1. Provide the following types of butt hinges for the types of doors listed, except where otherwise specified:

1. Interior Doors: Type 8112 for doors 900 mm (3 feet) wide or less and

Type A8111 for doors over 900 mm (3 feet) wide.

B. See Articles "MISCELLANEOUS HARDWARE" and "HARDWARE SETS" for pivots and hinges other than butts specified above and continuous hinges specified below.

2.2 DOOR STOPS

A. Conform to ANSI A156.16.

B. Provide door stops wherever an opened door or any item of hardware thereon would strike a wall, column, equipment or other parts of

08 71 00 - 4 building construction. For concrete, masonry or quarry tile construction, use lead expansion shields for mounting door stops.

C. Where cylindrical locks with turn pieces or pushbuttons occur, equip wall bumpers Type L02251 (rubber pads having concave face) to receive turn piece or button.

D. Substitute floor stops Type L02141 or L02161 as appropriate, when wall bumpers would not provide an effective door stop.

E. Where drywall partitions occur, use floor stops, Type L02141 or L02161.

F. Provide stop Type L02011 or L02181, as applicable for exterior doors.

G. Provide appropriate roller bumper for each set of doors (except where closet doors occur) where two doors would interfere with each other in swinging.

H. Provide appropriate door mounted stop on doors in individual toilets where floor or wall mounted stops cannot be used.

2.3 FLOOR DOOR HOLDERS

A. Conform to ANSI Standard A156.16. Provide extension strikes for Types

L01301 and L01311 holders where necessary.

2.4 LOCKS AND LATCHES

A. Conform to ANSI A156.2. Locks and latches for doors 45 mm (1-3/4 inch) thick or over must have beveled fronts. Lock cylinders must have not less than six pins. Cylinders for all locksets to be removable core type. Provide cylinders with construction removable cores and construction master keys. Cylinder to be removable by special key or tool. Construct all cores so that they will be interchangeable into the core housings of all mortise locks, rim locks, cylindrical locks, and any other type lock included in the Great Grand Master Key System.

Lever or lockset must not require disassembly to remove core from lockset. All locksets or latches on double doors with fire label to have latch bolt with 19 mm (3/4 inch) throw. Provide temporary keying device or construction core of allow opening and closing during construction and prior to the installation of final cores.

B. In addition, locks and latches must comply with following requirements:

1. Mortise Lock and Latch Sets: Conform to ANSI/BHMA A156.13; Series

1000, minimum Grade 2. Locks and latchsets to be furnished with curved lip strike and wrought box. Lock function F02 to be furnished with emergency tools/keys for emergency entrance. Furnish armored fronts for all mortise locks. Where mortise locks are installed in

08 71 00 - 5 high-humidity locations or where exposed to the exterior on both sides of the opening, provide non-ferrous mortise lock case.

2. Cylindrical Lock and Latch Sets: Levers must meet ADA (Americans with Disabilities Act) requirements. Cylindrical locksets to be series 4000 Grade I. Knobs for series 4000 lock and latch sets to have 57 mm (2-1/4 inch) diameters. Where two turn pieces are specified for lock F76, turn piece on inside knob must lock and unlock inside knob, and turn piece on outside knob must unlock outside knob when inside knob is in the locked position. (This function is intended to allow emergency entry into these rooms without an emergency key or any special tool.)

3. Auxiliary locks specified under hardware sets must conform to ANSI

A156.5.

2.5 KEYS

A. Stamp all keys with change number and key set symbol. Furnish keys in quantities as follows:

Locks/Keys Quantity

Cylinder locks 2 keys each

Cylinder lock change key blanks

10 each different key way

Master-keyed sets 6 keys each

Grand Master sets 6 keys each

Great Grand Master set 5 keys

Control key 1 key

2.6 FLUSH BOLTS (LEVER EXTENSION)

A. Conform to ANSI A156.16, Type L24081 unless otherwise specified.

Furnish proper dustproof strikes conforming to ANSI A156.16, for flush bolts required on lower part of doors. Modify flush bolts to fit stiles of aluminum doors on double-acting doors.

B. Face plates for cylindrical strikes to be rectangular and not less than

25 mm by 63 mm (1 inch by 2-1/2 inches).

C. Friction-fit cylindrical dustproof strikes with circular face plate may be used only where metal thresholds occur.

2.7 DOOR PULLS WITH PLATES

A. Conform to ANSI A156.6. Pull plate 90 mm by 350 mm (3-1/2 inches by 14 inches), unless otherwise specified. Cut plates of door pulls for cylinders, or turn pieces where required.

08 71 00 - 6

2.8 PUSH PLATES

A. Conform to ANSI A156.6. Metal, Type J302, 200 mm (8 inches) wide by 350 mm (14 inches) high. Provide plastic Type J302 plates 100 mm (4 inches wide by 350 mm (14 inches) high) where push plates are specified for doors with stiles less than 200 mm (8 inches) wide. Cut plates for cylinders, and turn pieces where required.

2.9 COMBINATION PUSH AND PULL PLATES

A. Conform to ANSI 156.6, Type J303; stainless steel 3 mm (1/8 inch) thick, 80 mm (3-1/3 inches) wide by 800 mm (16 inches) high), rounded top and bottom edges. Secure plates to wood doors with 38 mm (1-1/2 inch) long No. 12 wood screws. Cut plates for turn pieces, and cylinders where required. Mount pull in down direction.

2.10 THRESHOLDS

A. Conform to ANSI A156.21, mill finish extruded aluminum, except as otherwise specified. In existing construction, install thresholds in a bed of sealant with machine screws and expansion shields. In new construction, embed aluminum anchors coated with epoxy in concrete to secure thresholds. Furnish thresholds for the full width of the openings.

B. At exterior doors and any interior doors exposed to moisture, provide threshold with non-slip abrasive finish.

2.11 FINISHES

A. Exposed surfaces of hardware to have ANSI A156.18 finishes as specified below. Provide finishes on all hinges, pivots, closers, thresholds, etc. as specified below under "Miscellaneous Finishes."

B. 630: Surfaces on exterior and interior of buildings, except where other finishes are specified.

C. Miscellaneous Finishes:

1. Hinges - Interior Doors: 652 at rated doors or 626.

2. Door Closers: Factory applied paint finish. Dull or Satin Aluminum color // Dull Brass color // Bronze color. //

3. Thresholds: Mill finish aluminum.

4. Other primed steel hardware.

D. Hardware Finishes for Existing Buildings: Match finishes of hardware in

(similar) existing spaces.

2.21 BASE METALS

A. Apply specified U.S. Standard finishes on different base metals as following:

08 71 00 - 7

Finish Base Metal

652 Steel

626 Brass or bronze

630 Stainless steel

PART 3 - EXECUTION

3.1 HARDWARE HEIGHTS

A. For existing buildings locate hardware on doors at heights to match existing hardware. Visit the site, verify location of existing hardware and submit locations to RE/COR for approval.

8. Locate other hardware at standard commercial heights.

9. Locate push and pull plates to prevent conflict with other hardware.

3.2 INSTALLATION

A. Equip and mount closer devices, including those with hold-open features, to provide maximum door opening permitted by building construction or equipment. Closers to be mounted regular arm. Where closers are mounted on doors, mount with sex nuts and bolts; foot fastened to frame with machine screws.

B. Substitute parallel arm or top jamb mounting for regular arm mounting where the following conditions occur:

1. Where door swing, in full open position, would be limited to less than 90 degrees due to partition construction and closer location.

2. Where door to room opens outward into corridor.

3. Where exterior doors open outward.

C. Hinge Size Requirements:

Door Thickness Door Width Hinge Height

45 mm (1-3/4 inch) 900 mm (3 feet) and less 113 mm (4-1/2 inches) 45 mm (1-3/4 inch) Over 900 mm (3 feet) but not more than 1200 mm (4 feet)

125 mm (5 inches)

35 mm (1-3/8 inch) (hollow core wood doors)

Not over 1200 mm (4 feet) 113 mm (4-1/2 inches)

D. Provide hinge leaves sufficiently wide to allow doors to swing clear of door frame trim.

E. Where new hinges are specified for new doors in existing frames or existing doors in new frames, provide sizes of new hinges matching sizes of existing hinges; or, contractor may reuse existing hinges

08 71 00 - 8 provided hinges are restored to satisfactory operating condition as approved by RE/COR. Existing hinges cannot be reused on door openings having new doors and new frames. Coordinate preparation for hinge cut-outs and screw-hole locations on doors and frames.

F. Hinges Required Per Door:

Doors 1500 mm (5 ft) or less in height 2 butts

Doors over 1500 mm (5 ft) high and not over 2280 mm (7 ft 6 in) high

3 butts

Doors over 2280 mm (7 feet 6 inches) high 4 butts

Dutch type doors 4 butts

Doors with spring hinges 1370 mm (4 feet 6 inches) high or less

2 butts

Doors with spring hinges over 1370 mm (4 feet 6 inches) 3 butts

G. Fastenings: Suitable size and type to suit with hardware as to material and finish. Provide machine screws and lead expansion shields to secure hardware to concrete, ceramic or quarry floor tile, or solid masonry.

Fiber or rawl plugs and adhesives are not permitted. All fastenings exposed to weather must be of nonferrous metal.

H. After locks have been installed; show in presence of RE/COR that keys operate their respective locks in accordance with keying requirements.

(Send keys, Master Key level and above by Registered Mail to the

Cemetery Director along with the bitting list. Also send a copy of the invoice to the RE/COR for the records.) Installation of locks which do not meet specified keying requirements will be considered sufficient justification for rejection and replacement of all locks installed on project.

3.3 FINAL INSPECTION

A. Installer to provide letter to RE/COR that upon completion, installer has visited the Project and has accomplished the following:

1. Re-adjust hardware.

2. Evaluate maintenance procedures and recommend changes or additions, and instruct VA personnel.

3. Identify items that have deteriorated or failed.

4. Submit written report identifying problems.

GYPSUM BOARD

09 29 00 - 1

SECTION 09 29 00

GYPSUM BOARD

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies installation and finishing of gypsum board.

1.2 TERMINOLOGY

A. Definitions and description of terms to be in accordance with ASTM C11, C840, and as specified.

1.3 SUBMITTALS

A. Manufacturer's Literature and Data:

1. Cornerbead and edge trim.

2. Finishing materials.

3. Gypsum board, each type.

B. Shop Drawings:

1. Typical gypsum board installation of all assemblies, showing corner details, edge trim details and the like.

C. Samples:

1. Cornerbead.

2. Edge trim.

1.4 DELIVERY, IDENTIFICATION, HANDLING AND STORAGE

A. In accordance with the requirements of ASTM C840.

1.5 ENVIRONMENTAL CONDITIONS

A. In accordance with the requirements of ASTM C840.

1.6 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by the basic designation only. Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.

B. American Society for Testing and Materials (ASTM):

C11-13 Terminology Relating to Gypsum and Related

Building Materials and Systems

C475/C475M-12 Joint Compound and Joint Tape for Finishing

Gypsum Board

C840-11 Application and Finishing of Gypsum Board

C954-11 Steel Drill Screws for the Application of

Gypsum Panel Products or Metal Plaster Bases to

Steel Studs from 0.033 in. (0.84 mm) to 0.112

in. (2.84 mm) in Thickness

09 29 00 - 2

C1002-07 Steel Self-Piercing Tapping Screws for the

Application of Gypsum Panel Products or Metal

Plaster Bases to Wood Studs or Steel Studs

C1047-10a Accessories for Gypsum Wallboard and Gypsum

Veneer Base

C1177/C1177M-08 Glass Mat Gypsum Substrate for Use as Sheathing

C1280-11 Application of Exterior Gypsum Panel Products for Use as Sheathing

C1325-08b Fiber Mat Reinforced Cementitious Backer Unit

C1396/C1396M-13 Gypsum Board

C1658/C1658M Glass Mat Gypsum Panels

D3273-12 Resistance to Growth of Mold on the Surface of

Interior Coatings in an Environmental Chamber

PART 2 - PRODUCTS

2.1 GYPSUM BOARD

A. Gypsum Board (Typical) - Mold and Moisture-Resistant: ASTM C1396, (Type

X,) 1/2-inch thick unless shown otherwise.

B. Cementitious Backing Board: ASTM C1325.

C. Provide gypsum cores with a minimum of 95 percent postindustrial recycled gypsum content. Provide paper facings with 100 percent post-consumer recycled paper content.

2.2 ACCESSORIES

A. ASTM C1047, except form of 0.39 mm (0.015 inch) thick zinc coated steel sheet or rigid PVC plastic.

2.3 FASTENERS

A. ASTM C1002 and ASTM C840, except as otherwise specified.

B. ASTM C954, for steel studs thicker than 0.04 mm (0.33 inch).

C. For fire rated construction, type and size same as used in fire rating test.

2.5 FINISHING MATERIALS AND LAMINATING ADHESIVE

A. ASTM C475 and ASTM C840.

B. Provide material free of antifreeze, vinyl adhesives, preservatives and biocides; VOC content within limits of stated performance requirements.

C. Joint Tape: Use cross-laminated, tapered edge, reinforced paper, or fiber glass mesh tape recommended by the manufacturer.

09 29 00 - 3

PART 3 - EXECUTION

3.1 GYPSUM BOARD HEIGHTS

A. Extend gypsum board from floor to heights as follows, unless shown otherwise:

1. Not less than 150 mm (6 inches) above suspended acoustical ceilings.

2. At existing ceilings.

3.2 INSTALLING GYPSUM BOARD

A. Install gypsum board in accordance with ASTM C840, except as otherwise specified.

B. Provide and install moisture and mold-resistant glass-mat-faced interior gypsum wallboard products with moisture-resistant surfaces complying with ASTM C1658 where shown and in high humidity and wet areas or locations which might be subject to moisture exposure during construction.

C. Ceilings:

1. For single-ply construction, use perpendicular application.

2. For two-ply assembles:

a. Use perpendicular application.

b. Apply face ply of gypsum board so that joints of face ply do not occur at joints of base ply with joints over framing members.

D. Install control joints in accordance with ASTM C840.

E. Accessories:

1. Install the following accessories in accordance with ASTM C1047.

a. Corner Beads.

b. Edge Trim (casing beads).

3.3 INSTALLING GYPSUM SHEATHING

A. Comply with ASTM C1280; install sheathing vertically, with edges butted tight and ends occurring over firm bearing.

B. Coordinate sheathing installation with flashing and joint-sealant installation so these materials are installed in sequence and manner that prevent exterior moisture from passing through completed exterior wall assembly.

C. Do not bridge building expansion joints with sheathing; cut and space edges to match spacing of structural support elements.

D. Seal sheathing joints according to sheathing manufacturer's written recommendations.

09 29 00 - 4

1. Apply glass-fiber sheathing tape to glass-mat gypsum sheathing board joints, and apply and trowel silicone emulsion sealant to embed sealant in entire face of tape.

2. Apply sealant to exposed fasteners with a trowel so fasteners are completely covered.

3. Seal other penetrations and openings.

3.4 FINISHING OF GYPSUM BOARD

A. Finish joints, edges, corners, and fastener heads in accordance with

ASTM C840.

B. Use Level 5 finish for all finished areas open to public view; level 2 finish in utility, maintenance and service areas and level 1 in plenums, attics and other concealed areas.

C. Follow manufacturer’s fire testing reports where fire resistant construction is shown on drawings.

3.5 REPAIRS

A. After taping and finishing has been completed, and before decoration, repair all damaged and defective work, including non-decorated surfaces.

B. Patch holes or openings 13 mm (1/2 inch) or less in diameter, or equivalent size, with a setting type finishing compound or patching plaster.

C. Repair holes or openings over 13 mm (1/2 inch) diameter, or equivalent size, with 1/2 inch thick gypsum board secured in such a manner as to provide solid substrate equivalent to undamaged surface.

D. Tape and refinish scratched, abraded or damaged finish surfaces including cracks and joints in non-decorated surface to provide fire protection equivalent to the fire rated construction.

TILING

09 30 13 - 1

SECTION 09 30 13

TILING

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies ceramic and porcelain tile.

1.2 RELATED WORK

A. Sealing of joints where specified: Section 07 92 00, JOINT SEALANTS.

B. Color, texture and pattern of field tile and trim shapes, size of field tile, trim shapes, and color of grout specified.

1.3 PERFORMANCE REQUIREMENTS

A. Grout: Provide materials complying with SCAQMD Rule 1168; petroleum-and plastic-free grout.

1.5 SUBMITTALS

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Samples:

1. Porcelain tile, each type, color, patterns and size.

2. Wall tile, each color, size and pattern.

3. Trim shapes, bullnose cap and cove including bullnose cap and base pieces at internal and external corners of vertical surfaces, each type, color, and size.

C. Product Data:

1. Ceramic and porcelain tile, marked to show each type, size, and shape required.

2. Cementitious backer unit.

3. Dry-set Portland cement mortar and grout.

4. Divider strip.

5. Reinforcing tape.

6. Leveling compound.

7. Latex-Portland cement mortar and grout.

8. Commercial Portland cement grout.

9. Slip resistant tile.

11. Fasteners.

D. Certification:

1. Master grade, ANSI A137.1.

2. Manufacturer's certificates indicating that the following materials comply with specification requirements:

a. Commercial Portland cement grout.

09 30 13 - 2

b. Cementitious backer unit.

c. Dry-set Portland cement mortar and grout.

d. Reinforcing tape.

e. Latex-Portland cement mortar and grout.

1.6 DELIVERY AND STORAGE

A. Deliver materials in containers with labels legible and intact and grade-seals unbroken.

B. Store material to prevent damage or contamination.

1.7 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by the basic designation only. Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.

B. American National Standards Institute (ANSI):

A108.1B-13 Installation of Ceramic Tile on a Cured

Portland Cement Mortar Setting Bed with dry-Set or latex-Portland Cement Mortar

A108.11-10 Interior Installation of Cementitious Backer

Units

A108.5-10 Installation of Ceramic Tile with Dry-Set

Portland Cement Mortar or Latex-Portland Cement

Mortar

A118.1-12 Dry-Set Portland Cement Mortar

A118.4-12 Latex-Portland Cement Mortar

A118.6-10 Standard Cement Grouts for Tile Installation

A118.7-10 High Performance Cement Grouts for Tile

Installation

A137.1-12 Ceramic Tile

C. American Society for Testing and Materials (ASTM):

C627-10 Evaluating Ceramic Floor Tile Installation

Systems Using the Robinson-Type Floor Tester

C954-11 Steel Drill Screws for the Application of

Gypsum Board on Metal Plaster Base to Steel

Studs from 0.033 in (0.84 mm) to 0.112 in (2.84

mm) in thickness

C1002-07 Steel Self-Piercing Tapping Screws for the

Application of Panel Products

09 30 13 - 3

C1027-09 Determining “Visible Abrasion Resistance on

Glazed Ceramic Tile”

C1028-07e1 Determining the Static Coefficient of Friction of Ceramic Tile and Other Like Surfaces by the

Horizontal Dynamometer Pull Meter Method

C1178 /C1178M-11 Coated Glass Mat Water-Resistant Gypsum Backing

Panel

C1325-08b Non-Asbestos Fiber-Mat Reinforced Cementitious

Backer Units

E. South Coast Air Quality Management District (SCAQMD):

SCAQMD Rule 1168 (1989/R2005) Adhesive and Sealant Applications

F. Tile Council of North America, Inc. (TCNA):

Handbook for Ceramic, Glass, and Stone Tile Installation

PART 2 - PRODUCTS

2.1 TILE

A. Comply with ANSI A137.1, Standard Grade, except as modified:

1. Inspection procedures listed under the Appendix of ANSI A137.1.

2. Abrasion Resistance Classification: Tested in accordance with values listed in Table 1, ASTM C1027.

3. Slip Resistant Tile for Floors - Coefficient of friction, when tested in accordance with ASTM C1028, required for level of performance: Not less than 0.7 (wet condition) for bathing areas.

4. Factory Blending: For tile with color variations, within the ranges selected during sample submittals blend tile in the factory and package so tile units taken from one package show the same range in colors as those taken from other packages and match approved samples.

5. Factory-Applied Temporary Protective Coating:

a. Protect exposed face surfaces (top surface) of tile against adherence of mortar and grout by pre-coating with a continuous film of petroleum paraffin wax, applied hot.

b. Do not coat unexposed tile surfaces.

c. Pre-wax tiles set or grouted with latex modified mortars.

B. Glazed Wall Tile: Cushion edges, glazing, as specified.

E. Porcelain Paver Tile: Nominal 8 mm (5/16 inch) thick, cushion edges.

Produce porcelain tile by the dust pressed method made of approximately

50 percent feldspar; the remaining 50 percent to be made up of various high-quality light firing ball clays yielding a tile with a water

09 30 13 - 4 absorption rate of 0.5 percent or less and a breaking strength of between 390 to 400 pounds.

F. Trim Shapes:

1. Conform to applicable requirements of adjoining floor and wall tile.

2. Use trim shapes sizes specified in contract drawings and Statement of Work.

2.2 CEMENTITIOUS BACKER UNITS

A. Comply to ASTM C1325.

B. Joint materials for Cementitious Backer Units:

1. Reinforcing Tape: Vinyl coated woven glass fiber mesh tape, open weave, 50 mm (2 inches) wide. Tape with pressure sensitive adhesive backing will not be permitted.

2. Tape Embedding Material: Latex-Portland cement mortar complying with

ANSI A108.1.

3. Joint material, including reinforcing tape, and tape embedding material, must be as specifically recommended by the backer unit manufacturer.

2.3 FASTENERS

A. Screws for Cementitious Backer Units:

1. Standard screws for gypsum board are not acceptable.

2. Minimum 11 mm (7/16 inch) diameter head, corrosion resistant coated, with washers.

3. ASTM C954 for steel 1 mm (0.033 inch) thick.

4. ASTM C1002 for steel framing less than 0.0329 inch thick.

B. Washers: Galvanized steel, 13 mm (1/2 inch) minimum diameter.

2.4 GLASS MAT WATER RESISTANT GYPSUM BACKER BOARD

A. Confirm to ASTM C1178 for optional system instead of cementitious backer units for areas other than showers.

2…