HomeMy WebLinkAbout06 16 00 - SheathingMidtown West 17070
Carmel, Indiana September 15, 2017
06 16 00 - 1
SECTION 06 16 00 - SHEATHING
PART 1 - GENERAL
1.01 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Condi-
tions and Division 01 Specification Sections, apply to this Section.
1.02 SUMMARY
A. Section Includes:
1. Wall sheathing.
a. Wood structural panels.
b. Gypsum sheathing.
2. Roof sheathing.
3. Subflooring.
B. Related Requirements:
1. Section 06 10 00 "Rough Carpentry" for plywood backing panels.
2. Division 07 Section "Fluid Applied Air/Vapor Barriers" for air/vapor barrier applied over
wall sheathing.
1.03 INFORMATIONAL SUBMITTALS
A. Evaluation Reports: For following products, from ICC-ES:
1. Preservative-treated plywood.
2. Fire-retardant-treated plywood.
1.04 DELIVERY, STORAGE, AND HANDLING
A. Stack panels flat with spacers beneath and between each bundle to provide air circulation. Pro-
tect sheathing from weather by covering with waterproof sheeting, securely anchored. Provide
for air circulation around stacks and under coverings.
PART 2 - PRODUCTS
2.01 PERFORMANCE REQUIREMENTS
A. Fire-Resistance Ratings: As tested according to ASTM E 119; testing by a qualified testing agen-
cy. Identify products with appropriate markings of applicable testing agency.
1. Fire-Resistance Ratings: Indicated by design designations from UL's "Fire Resistance Di-
rectory" or from the listings of another qualified testing agency.
2.02 WOOD PANEL PRODUCTS
A. Plywood: Either DOC PS 1 or DOC PS 2 unless otherwise indicated.
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B. Oriented Strand Board: DOC PS 2.
C. Thickness: As needed to comply with requirements specified, but not less than thickness indicat-
ed.
D. Factory mark panels to indicate compliance with applicable standard.
2.03 PRESERVATIVE-TREATED PLYWOOD
A. Preservative Treatment by Pressure Process: AWPA U1; Use Category UC2 for interior con-
struction not in contact with the ground, Use Category UC3b for exterior construction not in con-
tact with the ground, and Use Category UC4a for items in contact with the ground.
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 au-
thorities having jurisdiction.
2.04 WALL SHEATHING
A. Oriented-Strand-Board Wall Sheathing: Exposure 1 sheathing.
1. Span Rating: Not less than 24/16.
2. Nominal Thickness: Not less than 7/16 inch.
B. Glass-Mat Gypsum Sheathing: ASTM C 1177/1177M.
1. Products: Subject to compliance with requirements, provide one of the following:
a. CertainTeed Corporation; GlasRoc.
b. G-P Gypsum Corporation; Dens-Glass Gold.
c. National Gypsum Company; Gold Bond e(2)XP.
d. Temple-Inland Inc.; GreenGlass
e. United States Gypsum Co.; Securock.
2. Type and Thickness: Type X, 5/8 inch (15.9 mm) thick.
3. Size: 48 by 120 inches (1219 by 3048 mm) for vertical installation.
2.05 ROOF SHEATHING
A. Plywood Roof Sheathing: Exterior sheathing.
1. Roof slopes greater than or equal to 3 in 12:
a. Span Rating: Not less than 24/16.
b. Nominal Thickness: Not less than 7/16 inch.
2. Roof slopes less than 3:12:
a. Span Rating: 48/24.
b. Nominal Thickness: Not less than 23/32 inch.
B. Oriented-Strand-Board Roof Sheathing: Exposure 1 sheathing.
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1. Roof slopes greater than or equal to 3 in 12.
a. Span Rating: Not less than 24/16.
b. Nominal Thickness: Not less than 7/16 inch.
2. Roof slopes less than 3:12:
a. Span Rating: 48/24.
b. Nominal Thickness: Not less than 23/32 inch.
2.06 SUBFLOORING AND UNDERLAYMENT
A. Plywood Combination Subfloor-Underlayment: DOC PS 1, Exposure 1, Underlayment single-
floor panels.
1. Span Rating: Not less than 24 o.c.
2. Nominal Thickness: Not less than 23/32 inch.
3. Edge Detail: Tongue and groove.
4. Surface Finish: Fully sanded face.
B. Oriented-Stand-Board Combination Subfloor-Underlayment: Exposure 1 single-floor panels.
1. Span Rating: Not less than 24 o.c.
2. Nominal Thickness: Not less than 23/32 inch.
3. Edge Detail: Tongue and groove.
4. Surface Finish: Fully sanded or Resin-impregnated overlay face.
2.07 FASTENERS
A. General: Provide fasteners of size and type indicated that comply with requirements specified in
this article for material and manufacture.
1. For roof and 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: ESR-1539.
D. Wood Screws: ASME B18.6.1.
E. Screws for Fastening Wood Structural Panels to Cold-Formed Metal Framing: ASTM C 954, ex-
cept with wafer heads and reamer wings, length as recommended by screw manufacturer for ma-
terial being fastened.
1. For wall and roof sheathing panels, provide screws with organic-polymer or other corro-
sion-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.
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1. For steel framing from 0.033 to 0.112 inch (0.84 to 2.84 mm) thick, use screws that com-
ply with ASTM C 954.
2.08 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 fasten-
ers.
1. Sheathing Tape: Self-adhering glass-fiber tape, minimum 2 inches (50 mm) wide, 10 by
10 or 10 by 20 threads/inch (390 by 390 or 390 by 780 threads/m), 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.
2.09 MISCELLANEOUS MATERIALS
A. Adhesives for Field Gluing Panels to Framing: Formulation complying with APA AFG-01 that is
approved for use with type of construction panel indicated by manufacturers of both adhesives
and panels.
PART 3 - EXECUTION
3.01 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 con-
struction unless otherwise indicated.
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."
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 and roof sheathing installation with flashing, joint sealant and air/vapor barrier in-
stallation 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 struc-
tural support elements.
G. Coordinate sheathing installation with installation of materials installed over sheathing so sheath-
ing is not exposed to precipitation or left exposed at end of the workday when rain is forecast.
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3.02 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 (3 mm) apart at edges and ends.
2. Wall and Roof Sheathing:
a. Nail to wood framing. Apply a continuous bead of glue to framing members at
edges of wall sheathing panels.
b. Screw to cold-formed metal framing.
c. Space panels 1/8 inch (3 mm) apart at edges and ends.
3.03 GYPSUM SHEATHING INSTALLATION
A. Comply with GA-253 and with manufacturer's written instructions.
1. Fasten gypsum sheathing to wood framing with screws.
2. Fasten gypsum sheathing to cold-formed metal framing with screws.
3. Install panels with a 3/8-inch (9.5-mm) gap where non-load-bearing construction abuts
structural elements.
4. Install panels with a 1/4-inch (6.4-mm) 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. Vertical Installation: Install vertical edges centered over studs. Abut ends and edges with those of
adjacent panels. Attach at perimeter and within field of panel to each stud.
1. Space fasteners approximately 8 inches (200 mm) o.c. and set back a minimum of 3/8
inch (9.5 mm) from edges and ends of panels.
D. Seal sheathing joints according to sheathing manufacturer's written instructions.
1. Apply glass-fiber sheathing tape to glass-mat gypsum sheathing joints and apply and
trowel 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.
END OF SECTION 06 16 00