HomeMy WebLinkAbout09 29 00.docMATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
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MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
SECTION 09 29 00 - GYPSUM BOARD
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Interior gypsum board.
2. Tile backing panels.
B. Related Requirements:
1. Section 09 22 16 "Non-Structural Metal Framing" for non-structural framing and
suspension systems that support gypsum board panels.
2. Section 09 30 00 "Tiling" for cementitious backer units installed as substrates for ceramic
tile.
1.3 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. Samples: For the following products:
1. Trim Accessories: Full-size Sample in 12-inch- long length for each trim accessory
indicated.
1.4 QUALITY ASSURANCE
A. Mockups: Provide any gypsum board mockups only as approved by Architect. Before
beginning gypsum board installation, install mockups of at least 100 sq. ft. in surface area to
demonstrate aesthetic effects and set quality standards for materials and execution.
1. Install mockups for the following:
a. Each level of gypsum board finish indicated for use in exposed locations.
2. Apply or install final decoration indicated, including painting and wall coverings, on
exposed surfaces for review of mockups.
3. Simulate finished lighting conditions for review of mockups.
4. Subject to compliance with requirements, approved mockups may become part of the
completed Work if undisturbed at time of Substantial Completion.
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1.5 DELIVERY, STORAGE AND HANDLING
A. Store materials inside under cover and keep them dry and protected against weather,
condensation, direct sunlight, construction traffic, and other potential causes of damage. Stack
panels flat and supported on risers on a flat platform to prevent sagging.
1.6 FIELD CONDITIONS
A. Environmental Limitations: Comply with ASTM C 840 requirements or gypsum board
manufacturer's written recommendations, whichever are more stringent.
B. Do not install paper-faced gypsum panels until installation areas are enclosed and conditioned.
C. Do not install panels that are wet, those that are moisture damaged, and those that are mold
damaged.
1. Indications that panels are wet or moisture damaged include, but are not limited to,
discoloration, sagging, or irregular shape.
2. Indications that panels are mold damaged include, but are not limited to, fuzzy or
splotchy surface contamination and discoloration.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. Fire-Resistance-Rated Assemblies: For fire-resistance-rated assemblies, provide materials and
construction identical to those tested in assembly indicated according to ASTM E 119 by an
independent testing agency.
B. STC-Rated Assemblies: For STC-rated assemblies, provide materials and construction
identical to those tested in assembly indicated according to ASTM E 90 and classified according
to ASTM E 413 by an independent testing agency.
C. Low-Emitting Materials: For ceiling and wall assemblies, provide materials and construction
identical to those tested in assembly and complying with the testing and product requirements
of the California Department of Health Services' "Standard Practice for the Testing of Volatile
Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."
2.2 GYPSUM BOARD, GENERAL
A. Recycled Content of Gypsum Panel Products: Postconsumer recycled content plus one-half of
pre-consumer recycled content not less than 25 percent.
B. Size: Provide maximum lengths and widths available that will minimize joints in each area and
that correspond with support system indicated.
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2.3 INTERIOR GYPSUM BOARD
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1. American Gypsum.
2. CertainTeed Corp.
3. Georgia-Pacific Gypsum LLC.
4. Lafarge North America Inc.
5. National Gypsum Company.
6. PABCO Gypsum.
7. Temple-Inland.
8. USG Corporation.
B. Gypsum Wallboard: ASTM C 1396.
1. Thickness: 1/2 inch.
2. Long Edges: Tapered.
C. Gypsum Board, Type X: ASTM C 1396.
1. Thickness: 5/8 inch.
2. Long Edges: Tapered.
D. Flexible Gypsum Board: ASTM C 1396. Manufactured to bend to fit radii and to be more
flexible than standard regular-type gypsum board of same thickness.
1. Thickness: 1/4 inch.
2. Long Edges: Tapered.
E. Gypsum Ceiling Board: ASTM C 1396.
1. Thickness: 1/2 inch.
2. Long Edges: Tapered.
F. Moisture- and Mold-Resistant Gypsum Board: ASTM C 1396. With moisture- and mold-
resistant core and paper surfaces.
1. Core: As indicated.
2. Long Edges: Tapered.
3. Mold Resistance: ASTM D 3273, score of 10 as rated according to ASTM D 3274.
G. Moisture-Mold-Resistant, Impact Resistant Gypsum Board: ASTM C 1278.
1. USG Fiberback Aqua-Touch
2. Mold Resistance: ASTM D 3273..
2.4 BACKING PANELS
A. Cementitious Backer Units: ANSI A118.9 and ASTM C 1288 or 1325, with manufacturer's
standard edges.
1. Products: Subject to compliance with requirements, provide one of the following:
a. C-Cure; C-Cure Board 990.
b. CertainTeed Corp.; Fiber Cement Backer Board.
c. Custom Building Products; Wonderboard.
d. James Hardie Building Products, Inc.; Hardiebacker.
e. National Gypsum Company, Permabase Cement Board.
f. USG Corporation; DUROCK Cement Board.
2. Thickness: As indicated.
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3. Mold Resistance: ASTM D 3273, score of 10 as rated according to ASTM D 3274.
B. Water-Resistant Gypsum Backing Board: ASTM C 1396, with manufacturer's standard edges.
1. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
a. American Gypsum.
b. CertainTeed Corp.
c. Georgia-Pacific Gypsum LLC.
d. Lafarge North America Inc.
e. PABCO Gypsum.
f. Temple-Inland.
g. USG Corporation.
2. Core: As indicated on Drawings.
2.5 TRIM ACCESSORIES
A. Interior Trim: ASTM C 1047.
1. Material: Galvanized or aluminum-coated steel sheet or rolled zinc.
2. Shapes:
a. Corner bead.
b. Bull nose bead.
c. LC-Bead: J-shaped; exposed long flange receives joint compound.
d. L-Bead: L-shaped; exposed long flange receives joint compound.
e. U-Bead: J-shaped; exposed short flange does not receive joint compound.
f. Expansion (control) joint.
g. Curved-Edge Corner bead: With notched or flexible flanges.
2.6 JOINT TREATMENT MATERIALS
A. General: Comply with ASTM C 475.
B. Joint Tape:
1. Interior Gypsum Board: Paper.
2. Tile Backing Panels: As recommended by panel manufacturer.
C. Joint Compound for Interior Gypsum Board: For each coat use formulation that is compatible
with other compounds applied on previous or for successive coats.
1. Pre-filling: At open joints and damaged surface areas, use setting-type taping
compound.
2. Embedding and First Coat: For embedding tape and first coat on joints, fasteners, and
trim flanges, use setting-type taping compound.
a. Use setting-type compound for installing paper-faced metal trim accessories.
3. Fill Coat: For second coat, use setting-type, sandable topping compound.
4. Finish Coat: For third coat, use setting-type, sandable topping compound.
5. Skim Coat: For final coat of Level 5 finish, use setting-type, sandable topping compound.
D. Joint Compound for Tile Backing Panels:
1. Cementitious Backer Units: As recommended by backer unit manufacturer.
2. Water-Resistant Gypsum Backing Board: Use setting-type taping compound and setting-
type, sandable topping compound.
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2.7 AUXILIARY MATERIALS
A. General: Provide auxiliary materials that comply with referenced installation standards and
manufacturer's written recommendations.
B. Laminating Adhesive: Adhesive or joint compound recommended for directly adhering gypsum
panels to continuous substrate.
1. Laminating adhesive shall have a VOC content of 50 g/L or less when calculated
according to 40 CFR 59, Subpart D (EPA Method 24).
C. Steel Drill Screws: ASTM C 1002, unless otherwise indicated.
1. Use screws complying with ASTM C 954 for fastening panels to steel members from
0.033 to 0.112 inch thick.
2. For fastening cementitious backer units, use screws of type and size recommended by
panel manufacturer.
D. Sound Attenuation Blankets: ASTM C 665, Type I (blankets without membrane facing)
produced by combining thermosetting resins with mineral fibers manufactured from glass, slag
wool, or rock wool.
1. Fire-Resistance-Rated Assemblies: Comply with mineral-fiber requirements of assembly.
2. Recycled Content of Blankets: Postconsumer recycled content plus one-half of pre-
consumer recycled content not less than 25 percent.
E. Acoustical Joint Sealant: Manufacturer's standard non-sag, paintable, non-staining latex
sealant complying with ASTM C 834. Product effectively reduces airborne sound transmission
through perimeter joints and openings in building construction as demonstrated by testing
representative assemblies according to ASTM E 90.
1. Products: Subject to compliance with requirements, provide one of the following:
a. Specified Technologies, Inc.; Smoke N Sound Acoustical Sealant.
b. USG Corporation; SHEETROCK Acoustical Sealant.
2. Acoustical joint sealant shall have a VOC content of 250 g/L or less when calculated
according to 40 CFR 59, Subpart D (EPA Method 24).
F. Thermal Insulation: As specified in Section 07 21 00 "Thermal Insulation."
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine areas and substrates including welded hollow-metal frames and framing, with Installer
present, for compliance with requirements and other conditions affecting performance.
B. Examine panels before installation. Reject panels that are wet, moisture damaged, and mold
damaged.
C. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 APPLYING AND FINISHING PANELS, GENERAL
A. Comply with ASTM C 840.
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B. Install ceiling panels across framing to minimize the number of abutting end joints and to avoid
abutting end joints in central area of each ceiling. Stagger abutting end joints of adjacent
panels not less than one framing member.
C. Install panels with face side out. Butt panels together for a light contact at edges and ends with
not more than 1/16 inch of open space between panels. Do not force into place.
D. Locate edge and end joints over supports, except in ceiling applications where intermediate
supports or gypsum board back-blocking is provided behind end joints. Do not place tapered
edges against cut edges or ends. Stagger vertical joints on opposite sides of partitions. Do not
make joints other than control joints at corners of framed openings.
E. Form control and expansion joints with space between edges of adjoining gypsum panels.
F. Cover both faces of support framing with gypsum panels in concealed spaces (above ceilings,
etc.), except in chases braced internally.
1. Unless concealed application is indicated or required for sound, fire, air, or smoke ratings,
coverage may be accomplished with scraps of not less than 8 sq. ft. in area.
2. Fit gypsum panels around ducts, pipes, and conduits.
3. Where partitions intersect structural members projecting below underside of floor/roof
slabs and decks, cut gypsum panels to fit profile formed by structural members; allow
1/4- to 3/8-inch- wide joints to install sealant.
G. Isolate perimeter of gypsum board applied to non-load-bearing partitions at structural
abutments, except floors. Provide 1/4- to 1/2-inch- wide spaces at these locations and trim
edges with edge trim where edges of panels are exposed. Seal joints between edges and
abutting structural surfaces with acoustical sealant.
H. Attachment to Steel Framing: Attach panels so leading edge or end of each panel is attached
to open (unsupported) edges of stud flanges first.
I. STC-Rated Assemblies: Seal construction at perimeters, behind control joints, and at openings
and penetrations with a continuous bead of acoustical sealant. Install acoustical sealant at both
faces of partitions at perimeters and through penetrations. Comply with ASTM C 919 and with
manufacturer's written recommendations for locating edge trim and closing off sound-flanking
paths around or through assemblies, including sealing partitions above acoustical ceilings.
J. Install sound attenuation blankets before installing gypsum panels unless blankets are readily
installed after panels have been installed on one side.
3.3 APPLYING INTERIOR GYPSUM BOARD
A. Install interior gypsum board in the following locations:
1. Wallboard Type: As indicated on Drawings.
2. Type X: As indicated on Drawings.
3. Flexible Type: As indicated on Drawings.
4. Ceiling Type: As indicated on Drawings.
5. Moisture- and Mold-Resistant Type: As indicated on Drawings.
6. Type C: As indicated on Drawings.
B. Single-Layer Application:
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1. On ceilings, apply gypsum panels before wall/partition board application to greatest
extent possible and at right angles to framing unless otherwise indicated.
2. On partitions/walls, apply gypsum panels vertically (parallel to framing) unless otherwise
indicated or required by fire-resistance-rated assembly, and minimize end joints.
a. Stagger abutting end joints not less than one framing member in alternate courses
of panels.
b. At stairwells and other high walls, install panels horizontally unless otherwise
indicated or required by fire-resistance-rated assembly.
3. On Z-furring members, apply gypsum panels vertically (parallel to framing) with no end
joints. Locate edge joints over furring members.
4. Fastening Methods: Apply gypsum panels to supports with steel drill screws.
C. Multilayer Application:
1. On ceilings, apply gypsum board indicated for base layers before applying base layers on
walls/partitions; apply face layers in same sequence. Apply base layers at right angles to
framing members and offset face-layer joints one framing member, 16 inches minimum,
from parallel base-layer joints, unless otherwise indicated or required by fire-resistance-
rated assembly.
2. On partitions/walls, apply gypsum board indicated for base layers and face layers
vertically (parallel to framing) with joints of base layers located over stud or furring
member and face-layer joints offset at least one stud or furring member with base-layer
joints, unless otherwise indicated or required by fire-resistance-rated assembly. Stagger
joints on opposite sides of partitions.
3. On Z-furring members, apply base layer vertically (parallel to framing) and face layer
either vertically (parallel to framing) or horizontally (perpendicular to framing) with vertical
joints offset at least one furring member. Locate edge joints of base layer over furring
members.
4. Fastening Methods: Fasten base layers and face layers separately to supports with
screws.
D. Laminating to Substrate: Where gypsum panels are indicated as directly adhered to a substrate
(other than studs, joists, furring members, or base layer of gypsum board), comply with gypsum
board manufacturer's written recommendations and temporarily brace or fasten gypsum panels
until fastening adhesive has set.
E. Curved Surfaces:
1. Install panels horizontally (perpendicular to supports) and unbroken, to extent possible,
across curved surface plus 12-inch- long straight sections at ends of curves and tangent
to them.
2. For double-layer construction, fasten base layer to studs with screws 16 inches o.c.
Center gypsum board face layer over joints in base layer, and fasten to studs with screws
spaced 12 inches o.c.
3.4 APPLYING TILE BACKING PANELS
A. Cementitious Backer Units: ANSI A108.11:
1. At locations indicated to receive tile.
2. At interior columns with thin stone veneer.
3. At interior walls with thin brick veneer panel finish.
B. Water-Resistant Backing Board: Install where indicated with 1/4-inch gap where panels abut
other construction or penetrations.
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C. Where tile backing panels abut other types of panels in same plane, shim surfaces to produce a
uniform plane across panel surfaces.
3.5 INSTALLING TRIM ACCESSORIES
A. General: For trim with back flanges intended for fasteners, attach to framing with same
fasteners used for panels. Otherwise, attach trim according to manufacturer's written
instructions.
B. Control Joints: Install control joints according to ASTM C 840 and in specific locations approved
by Architect for visual effect.
C. Interior Trim: Install in the following locations:
1. Corner bead: Use at outside corners unless otherwise indicated.
2. Bull nose Bead: Use where indicated.
3. LC-Bead: Use at exposed panel edges.
4. L-Bead: Use where indicated.
5. U-Bead: Use where indicated.
6. Curved-Edge Corner bead: Use at curved openings.
3.6 FINISHING GYPSUM BOARD
A. General: Treat gypsum board joints, interior angles, edge trim, control joints, penetrations,
fastener heads, surface defects, and elsewhere as required to prepare gypsum board surfaces
for decoration. Promptly remove residual joint compound from adjacent surfaces.
B. Pre-fill open joints and damaged surface areas.
C. Apply joint tape over gypsum board joints, except for trim products specifically indicated as not
intended to receive tape.
D. Gypsum Board Finish Levels: Finish panels to levels indicated below and according to
ASTM C 840:
1. Level 1: Ceiling plenum areas, concealed areas, and where indicated.
2. Level 2: Panels that are substrate for tile.
3. Level 3: Where indicated on Drawings.
4. Level 4: At panel surfaces that will be exposed to view unless otherwise indicated.
a. Primer and its application to surfaces are specified in Section 09 91 00 "Painting."
5. Level 5: Where indicated on Drawings.
a. Primer and its application to surfaces are specified in Section 09 91 00 "Painting."
E. Cementitious Backer Units: Finish according to manufacturer's written instructions.
3.7 PROTECTION
A. Protect adjacent surfaces from drywall compound and promptly remove from floors and other
non-drywall surfaces. Repair surfaces stained, marred, or otherwise damaged during drywall
application.
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B. Protect installed products from damage from weather, condensation, direct sunlight,
construction, and other causes during remainder of the construction period.
C. Remove and replace panels that are wet, moisture damaged, and mold damaged.
1. Indications that panels are wet or moisture damaged include, but are not limited to,
discoloration, sagging, or irregular shape.
2. Indications that panels are mold damaged include, but are not limited to, fuzzy or
splotchy surface contamination and discoloration.
END OF SECTION 09 29 00