HomeMy WebLinkAbout06 16 00.DOCMATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
06 16 00 -
CARMEL CITY CENTER Issue Date 03.26.12 SHEATHING
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
SECTION 06 16 00 - SHEATHING
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. Wall sheathing.
2. Subflooring.
3. Sheathing joint and penetration treatment.
B. Related Requirements:
1. Section 06 10 00 "Rough Carpentry" for plywood backing panels.
1.3 ACTION SUBMITTALS
A. Product Data: For each type of process and factory-fabricated product. Indicate component
materials and dimensions and include construction and application details.
1. Include data for wood-preservative treatment from chemical treatment manufacturer and
certification by treating plant that treated plywood complies with requirements. Indicate
type of preservative used and net amount of preservative retained.
2. Include data for fire-retardant treatment from chemical treatment manufacturer and
certification by treating plant that treated plywood complies with requirements. Include
physical properties of treated materials.
3. For fire-retardant treatments, include physical properties of treated plywood both before
and after exposure to elevated temperatures, based on testing by a qualified independent
testing agency according to ASTM D 5516.
4. For products receiving a waterborne treatment, include statement that moisture content
of treated materials was reduced to levels specified before shipment to Project site.
5. Include copies of warranties from chemical treatment manufacturers for each type of
treatment.
1.4 INFORMATIONAL SUBMITTALS
A. Evaluation Reports: For following products, from ICC-ES:
1. Preservative-treated plywood.
2. Fire-retardant-treated plywood.
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
06 16 00 -
CARMEL CITY CENTER Issue Date 03.26.12 SHEATHING
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
1.5 QUALITY ASSURANCE
A. Testing Agency Qualifications: For testing agency providing classification marking for fire-
retardant-treated material, an inspection agency acceptable to authorities having jurisdiction
that periodically performs inspections to verify that the material bearing the classification
marking is representative of the material tested.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Stack panels flat with spacers beneath and between each bundle to provide air circulation.
Protect sheathing from weather by covering with waterproof sheeting, securely anchored.
Provide for air circulation around stacks and under coverings.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. Fire-Test-Response Characteristics: For assemblies with fire-resistance ratings, provide
materials and construction identical to those of assemblies tested for fire resistance per
ASTM E 119 by a testing and inspecting agency acceptable to authorities having jurisdiction.
1. Fire-Resistance Ratings: Indicated by design designations from UL's "Fire Resistance
Directory."
2.2 WOOD PANEL PRODUCTS
A. Emissions: Products shall meet 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."
B. Plywood: DOC PS 1.
C. Thickness: As needed to comply with requirements specified, but not less than thickness
indicated.
D. Factory mark panels to indicate compliance with applicable standard.
2.3 PRESERVATIVE-TREATED PLYWOOD
A. Preservative Treatment by Pressure Process: AWPA U1; Use Category UC2.
1. Preservative Chemicals: Acceptable to authorities having jurisdiction and containing no
arsenic or chromium.
B. Mark plywood with appropriate classification marking of an inspection agency acceptable to
authorities having jurisdiction.
C. Application: Plywood in contact with masonry or concrete.
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
06 16 00 -
CARMEL CITY CENTER Issue Date 03.26.12 SHEATHING
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
2.4 FIRE-RETARDANT-TREATED PLYWOOD
A. General: Where fire-retardant-treated materials are indicated, use materials complying with
requirements in this article that are acceptable to authorities having jurisdiction and with fire-
test-response characteristics specified as determined by testing identical products per test
method indicated by a qualified testing agency.
B. Fire-Retardant-Treated Plywood by Pressure Process: Products with a flame-spread index of
25 or less when tested according to ASTM E 84, and with no evidence of significant progressive
combustion when the test is extended an additional 20 minutes, and with the flame front not
extending more than 10.5 feet beyond the centerline of the burners at any time during the test.
1. Use treatment that does not promote corrosion of metal fasteners.
2. Interior Type A: Treated materials shall have a moisture content of 28 percent or less
when tested according to ASTM D 3201 at 92 percent relative humidity. Use where
exterior type is not indicated.
C. Kiln-dry material after treatment to maximum moisture content of 19 percent. Do not use
material that is warped or does not comply with requirements for untreated material.
D. Identify fire-retardant-treated plywood with appropriate classification marking of qualified testing
agency.
1. Wall sheathing within 48 inches of fire walls.
2. Subflooring and underlayment for raised platforms.
2.5 WALL SHEATHING
A. Plywood Wall Sheathing: Exposure 1 sheathing.
1. Span Rating: Not less than 16/0.
2. Nominal Thickness: Not less than 1/2 inch.
B. Glass-Mat Gypsum Wall Sheathing: ASTM C 1177.
1. Products: Subject to compliance with requirements, provide the following:
a. G-P Gypsum Corporation; Dens-Glass Gold.
2. Type and Thickness: Type X, 5/8 inch thick.
3. Size: 48 by 96 inches for vertical installation.
C. Cementitious Backer Units: ASTM C 1325, Type A.
1. Products: Subject to compliance with requirements, provide one of the following:
a. C-Cure; C-Cure Board 990.
b. Custom Building Products; Wonderboard.
c. USG Corporation; DUROCK Cement Board.
2. Thickness: 1/2 inch.
2.6 SUBFLOORING
A. Plywood Subflooring: Exposure 1, Structural I single-floor panels or sheathing.
1. Span Rating: Not less than 16 o.c.
2. Nominal Thickness: Not less than 3/4 inch.
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
06 16 00 -
CARMEL CITY CENTER Issue Date 03.26.12 SHEATHING
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
2.7 FASTENERS
A. General: Provide fasteners of size and type indicated that comply with requirements specified
in this article for material and manufacture.
1. For wall sheathing, provide fasteners with hot-dip zinc coating complying with
ASTM A 153.
B. Nails, Brads, and Staples: ASTM F 1667.
C. Power-Driven Fasteners: NES NER-272.
D. Wood Screws: ASME B18.6.1.
E. Screws for Fastening Wood Structural Panels to Cold-Formed Metal Framing: ASTM C 954,
except with wafer heads and reamer wings, length as recommended by screw manufacturer for
material being fastened.
1. For wall sheathing panels, provide screws with organic-polymer or other corrosion-
protective coating having a salt-spray resistance of more than 800 hours according to
ASTM B 117.
F. Screws for Fastening Gypsum Sheathing to Cold-Formed Metal Framing: Steel drill screws, in
length recommended by sheathing manufacturer for thickness of sheathing to be attached, with
organic-polymer or other corrosion-protective coating having a salt-spray resistance of more
than 800 hours according to ASTM B 117.
1. For steel framing less than 0.0329 inch thick, use screws that comply with ASTM C 1002.
2. For steel framing from 0.033 to 0.112 inc thick, use screws that comply with ASTM C 954.
2.8 SHEATHING JOINT-AND-PENETRATION TREATMENT MATERIALS
A. Sealant for Glass-Mat Gypsum Sheathing: Silicone emulsion sealant complying with
ASTM C 834, compatible with sheathing tape and sheathing and recommended by tape and
sheathing manufacturers for use with glass-fiber sheathing tape and for covering exposed
fasteners.
1. Sheathing Tape: Self-adhering glass-fiber tape, minimum 2 inches wide, 10 by 10 or 10
by 20 threads/inch, of type recommended by sheathing and tape manufacturers for use
with silicone emulsion sealant in sealing joints in glass-mat gypsum sheathing and with a
history of successful in-service use.
PART 3 - EXECUTION
3.1 INSTALLATION, GENERAL
A. Do not use materials with defects that impair quality of sheathing or pieces that are too small to
use with minimum number of joints or optimum joint arrangement. Arrange joints so that pieces
do not span between fewer than three support members.
B. Cut panels at penetrations, edges, and other obstructions of work; fit tightly against abutting
construction unless otherwise indicated.
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
06 16 00 -
CARMEL CITY CENTER Issue Date 03.26.12 SHEATHING
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
C. Securely attach to substrate by fastening as indicated, complying with the following:
1. NES NER-272 for power-driven fasteners.
2. Table 2304.9.1, "Fastening Schedule," in ICC's "International Building Code."
3. Table R602.3 (1), "Fastener Schedule for Structural Members," and Table R602.3 (2),
"Alternate Attachments," in ICC's "International Residential Code for One- and Two-
Family Dwellings."
D. Use common wire nails unless otherwise indicated. Select fasteners of size that will not fully
penetrate members where opposite side will be exposed to view or will receive finish materials.
Make tight connections. Install fasteners without splitting wood.
E. Coordinate wall 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 assembly.
F. Do not bridge building expansion joints; cut and space edges of panels to match spacing of
structural support elements.
G. Coordinate sheathing installation with installation of materials installed over sheathing so
sheathing is not exposed to precipitation or left exposed at end of the workday when rain is
forecast.
3.2 WOOD STRUCTURAL PANEL INSTALLATION
A. General: Comply with applicable recommendations in APA Form No. E30, "Engineered Wood
Construction Guide," for types of structural-use panels and applications indicated.
B. Fastening Methods: Fasten panels as indicated below:
1. Subflooring:
a. Glue and nail to wood framing.
b. Screw to cold-formed metal framing.
c. Space panels 1/8 inch apart at edges and ends.
2. Wall Sheathing:
a. Screw to cold-formed metal framing.
b. Space panels 1/8 inch apart at edges and ends.
3.3 GYPSUM SHEATHING INSTALLATION
A. Comply with GA-253 and with manufacturer's written instructions.
1. Fasten gypsum sheathing to cold-formed metal framing with screws.
2. Install boards with a 3/8-inch gap where non-load-bearing construction abuts structural
elements.
3. Install boards with a 1/4-inch gap where they abut masonry or similar materials that might
retain moisture, to prevent wicking.
B. Apply fasteners so heads bear tightly against face of sheathing, but do not cut into facing.
C. Horizontal Installation: Install sheathing with V-grooved edge down and tongue edge up.
Interlock tongue with groove to bring long edges in contact with edges of adjacent boards
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
06 16 00 -
CARMEL CITY CENTER Issue Date 03.26.12 SHEATHING
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
without forcing. Abut ends of boards over centers of studs, and stagger end joints of adjacent
boards not less than one stud spacing. Attach boards at perimeter and within field of board to
each steel stud.
1. Space fasteners approximately 8 inches o.c. and set back a minimum of 3/8 inch from
edges and ends of boards.
2. For sheathing under stucco cladding, boards may be initially tacked in place with screws
if overlying self-furring metal lath is screw-attached through sheathing to studs
immediately after sheathing is installed.
D. Seal sheathing joints according to sheathing manufacturer's written instructions.
1. Apply elastomeric sealant to joints and fasteners and trowel flat. Apply sufficient amount
of sealant to completely cover joints and fasteners after troweling. Seal other
penetrations and openings.
2. Apply glass-fiber sheathing tape to glass-mat gypsum sheathing joints and apply and
trowel silicone emulsion sealant to embed entire face of tape in sealant. Apply sealant to
exposed fasteners with a trowel so fasteners are completely covered. Seal other
penetrations and openings.
3.4 CEMENTITIOUS BACKER UNIT INSTALLATION
A. Install panels and treat joints according to ANSI A108.11 and manufacturer's written instructions
for type of application indicated.
END OF SECTION 06 16 00