SECTION 061100
FRAMING AND SHEATHING
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PART 1
1.1
1.2
GENERAL
SUMMARY
A.
Section Includes:
1.
[Floor] [roof] [and] [wall] framing.
2.
Floor decking.
3.
[Roof] [and] [wall] sheathing.
4.
Wood blocking and furring.
5.
Telephone and electrical panel backboards.
6.
Roof curbs.
7.
[Preservative] [and] [fire retardant] treatment of wood.
B.
Related Sections:
1.
Division 01: Administrative, procedural, and temporary work requirements.
REFERENCES
A.
American Wood Protection Association (AWPA):
1.
M4 - Standard for the Care of Preservative Treated Wood Products.
2.
U1 - Use Category System - User Specification for Treated Wood.
B.
ASTM International (ASTM):
1.
A153/A153M - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.
2.
A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron
Alloy Coated (Galvannealed) by the Hot-Dip Process.
3.
E84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
4.
F593 - Standard Specification for Stainless Steel Bolts, Hex Cap Screws and Studs.
5.
F1554 - Standard Specification for Anchor Bolts, Steel, 36, 55 and 105 KSI Yield Strength.
C.
Engineered Wood Association (APA) PRP-108 - Performance Standards and Qualification Policy for
Structural-Use Panels.
D.
Forest Stewardship Council (FSC) STD-40-004 - Chain of Custody Standard.
E.
National Institute of Standards and Technology (NIST) - Product Standard PS 20 - American
Softwood Lumber Standard.
F.
Northeastern Lumber Manufacturers Association (NELMA) - Standard Grading Rules for
Northeastern Lumber.
G.
National Lumber Grades Authority (NLGA) - Standard Grading Rules for Canadian Lumber.
© 2016, SpexPlus, Inc.
1Q 2016
061100-1
Framing and Sheathing
1.3
H.
Redwood Inspection Service (RIS) - Standard Specifications for Grades of California Redwood
Lumber.
I.
Southern Pine Inspection Bureau (SPIB) - Standard Grading Rules for Southern Pine Lumber.
J.
West Coast Lumber Inspection Bureau (WCLIB) - Standard Grading Rules for West Coast Lumber.
K.
Western Red Cedar Lumber Association (WRCLA) - Grading Rules.
L.
Western Wood Products Association (WWPA) G-5 - Western Lumber Grading Rules.
SUBMITTALS
A.
1.4
1.5
1.6
QUALITY ASSURANCE
A.
Lumber Grading Agency: Certified to NIST PS 20.
B.
Identify lumber and sheet products by official grade mark.
C.
Fire Retardant Treated Products: Bear label of recognized independent testing laboratory indicating
flame spread rating of [25] [__] or less, tested to ASTM E84.
DELIVERY, STORAGE AND HANDLING
A.
Store materials minimum [6] [__] inches above ground on framework or blocking and cover with
protective waterproof covering providing for adequate air circulation.
B.
Do not store seasoned or treated materials in damp location.
C.
Protect edges and corners of sheet materials from damage.
WARRANTIES
A.
PART 2
2.1
Sustainable Design Submittals:
1.
Materials Reuse.
2.
Recycled Content.
3.
Regional Materials.
4.
Rapidly Renewable Materials.
5.
Low-Emitting Materials.
6.
Certified Wood.
Provide manufacturer’s [10] [20] [__] year warranty against rot and termite damage for composite
wood.
PRODUCTS
MANUFACTURERS
A.
Acceptable Manufacturers - Laminated Veneer Lumber:
1.
Boise Cascade Corporation. (www.bc.com)
2.
Georgia-Pacific Corporation. (www.gp.com)
3.
LP Corp. (www.lpcorp.com)
4.
[____].
5.
[____].
6.
[____].
B.
Acceptable Manufacturers - Prefabricated Wood I Joists:
1.
Boise Cascade Corporation. (www.bc.com)
2.
Georgia-Pacific Corporation. (www.gp.com
Framing and Sheathing
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© 2016, SpexPlus, Inc.
1Q 2016
3.
4.
5.
6.
7.
8.
2.2
LP Corp. (www.lpcorp.com)
Western Wood Structures, Inc. (www.westernwoodstructures.com)
Weyerhauser. (www.weyerhauser.com)
[____].
[____].
[____].
C.
Acceptable Manufacturers - Composite Wood:
1.
CertainTeed Corp. (www.certainteed.com)
2.
Trex Co. (www.trex.com)
3.
[____].
4.
[____].
5.
[____].
D.
Substitutions: [Under provisions of Division 01.] [Not permitted.]
MATERIALS
A.
Dimension Lumber:
1.
Grading rules: [NELMA.] [NLGA.] [RIS.] [SPIB.] [WCLIB.] [WRCLA.] [WWPA.] [____.]
2.
Species: [____.]
3.
Grade: [____.]
4.
Surfacing: Surfaced four sides (S4S) [unless otherwise indicated].
5.
Maximum moisture content: [19] [__] percent.
6.
Finger jointed, manufactured using low-emitting, urea formaldehyde-free binders.
7.
Certified to FSC STD-04-004.
B.
Laminated Veneer Lumber:
1.
Fabricated by laminating wood veneers under pressure using exterior type adhesive with grain
of veneers parallel with length.
2.
Veneer: [Douglas Fir] [or] [Southern Pine].
3.
Manufactured using low-emitting, urea formaldehyde-free binders.
4.
Certified to FSC STD-04-004.
C.
Prefabricated Wood I Joists:
1.
Fabricated by bonding stress graded lumber flanges to webs with exterior type adhesive.
2.
Flange material: [Laminated veneer lumber.] [[Southern Pine] [Spruce-Pine-Fir] dimension
lumber.] [As standard with joist manufacturer.]
3.
Web material: [Oriented strand board.] [Plywood.] [As standard with joist manufacturer.]
4.
Manufactured using low-emitting, urea formaldehyde-free binders.
5.
Certified to FSC STD-04-004.
D.
Composite Joists and Headers:
1.
Fabricated by laminating wood veneers to narrow oriented strand board to produce rectangular
members with veneers making up not less than [32] [__] percent of total cross section.
2.
Manufactured using low-emitting, urea formaldehyde-free adhesives.
E.
Composite Wood:
1.
Extruded product consisting of [recycled] polyethylene and [industrial waste] wood fibers with
integral coloring.
2.
Color: [____] color [to be selected from manufacturer's full color range.]
F.
Sheet Products:
1.
Type: APA [Plywood.] [Oriented Strand Board.] [COM-PLY.]
2.
Panel grade:
a.
[Floor] [wall] [and] [roof] sheathing: APA [Rated Sheathing.] [Structural I Rated
Sheathing.] [____.]
b.
Combination subfloor/underlayment: APA [Sturd-I-Floor.] [____.]
c.
Underlayment: APA [Underlayment.] [____.]
© 2016, SpexPlus, Inc.
1Q 2016
061100-3
Framing and Sheathing
3.
4.
5.
2.3
2.4
ACCESSORIES
A.
Anchor Bolts: ASTM F1554.
B.
Fasteners:
1.
Type and size: As required by conditions of use.
2.
Exterior locations and treated products: [Hot-dip galvanized steel, ASTM A153/A153M, [G90]
[__] coating class.] [Stainless steel, ASTM F593, Type 304 or 316.]
3.
Other interior locations: Plain steel.
C.
[Metal Connectors:] [Joist Hangers:]
1.
Galvanized steel, ASTM A653/A653M, [G90] [G185] [__] coating class.
2.
Size and shape: To suit framing conditions.
D.
Subflooring Adhesive:
1.
Waterproof, water based, air cure type, in cartridge dispensers.
2.
Maximum volatile organic compound (VOC) content: [30] [__] grams per liter.
E.
Sill Gasket: [1/4] [__] inch thick, plate width, closed cell polyethylene or urethane foam from
continuous rolls.
F.
Termite Shield: Galvanized sheet steel, minimum [26] [__] gage.
FABRICATION
A.
Preservative Treatment:
1.
Treat [lumber] [and] [sheet products] in accordance with AWPA U1:
a.
Interior locations protected from moisture sources: Category UC1 - Interior/Dry.
b.
Interior locations subject to sources of moisture: Category UC2 - Interior/Damp.
c.
Exterior locations above ground: Category [UC3A - Above Ground/Protected.] [UC3B Above Ground/Exposed.]
d.
Exterior locations in contact with ground: Category [UC4A - Ground Contact/General
Use.] [UC4B - Ground Contact/Heavy Duty.] [UC4C - Ground Contact/Extreme Duty.]
2.
Treatment process: Type [MCA - Micronized Copper Azole.] [___ - ____.]
B.
Fire Retardant Treatment; treat [lumber] [and] [sheet products] in accordance with AWPA U1:
1.
Interior locations: Category UCFA - Fire Retardant/Interior.
2.
Exterior locations: Category UCFB - Fire Retardant/Exterior.
PART 3
3.1
Exposure:
a.
Exterior applications: [Exterior.] [Exposure 1.] [____.]
b.
Interior applications: [Interior.] [____.]
Rapidly renewable product made from chopped straw, manufactured using low-emitting, urea
formaldehyde-free binders.
Certified to FSC STD-04-004.
EXECUTION
INSTALLATION
A.
Set members level, plumb, and rigid.
B.
Make provisions for erection loads, and for temporary bracing to maintain structure safe, plumb, and
in true alignment until completion of erection and installation of permanent bracing.
C.
Place beams, joists, and rafters with crown edge up.
D.
Construct load bearing framing members full length without splices.
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1Q 2016
E.
Sills:
1.
Place full width continuous sill flashings under framed walls on cementitious foundations. Lap
flashing joint [4] [__] inches.
2.
Place sill gasket directly on [sill flashing.] [cementitious foundation.] Fit tight to protruding
foundation anchor bolts.
3.
Anchor sills to foundation with [anchor bolts] [expansion fasteners] [or] [power driven fasteners].
F.
Joist Framing:
1.
Provide minimum [1-1/2] [__] inches of bearing.
2.
Lap members framing from opposite sides minimum [4] [__] inches.
3.
Construct double joist headers at floor and ceiling openings and under wall stud partitions that
are parallel to floor joists. Frame rigidly into joists.
4.
Bridge joists at mid span for spans in excess of [8] [__] feet.
G.
Stud Framing:
1.
Provide single bottom plate and double top plates for load bearing partitions.
2.
Provide single bottom and top plates for non load bearing partitions.
3.
Anchor bottom plates to concrete structure with [anchor bolts] [expansion fasteners] [or] [power
driven fasteners].
4.
Triple studs at corners and partition intersections.
5.
Anchor studs abutting masonry or concrete with toggle or expansion bolts.
6.
Frame openings with double studs and headers. Space short studs over and under opening to
stud spacing.
7.
[If wood sheathing is not installed] At corners, provide diagonal [1 x 4] [__ to __] inch bracing;
notch studs to fit.
H.
Rafter Framing:
1.
Notch to fit exterior wall plates.
2.
Double rafters at roof openings; support with metal hangers.
3.
At ridge, place rafters directly opposite each other and secure to ridge member.
4.
At hips and valleys, bevel ends for bearing against hip or valley rafter.
5.
Locate collar ties at every [third] [__] pair of rafters, one third of the distance to ceiling joists; cut
ends to fit slope and secure to rafters.
I.
Beams:
1.
Provide minimum end bearing of [4] [__] inches.
2.
Nail built-up members with two rows of nails spaced [6] [__] inches on center maximum.
J.
[Lumber] [Composite Wood] Decking:
1.
Place decking to span two or more supports, with ends occurring over supports.
2.
Stagger end joints in adjacent rows.
3.
Secure to each support with [2] [__] fasteners.
K.
Roof Sheathing:
1.
Place panels perpendicular to framing members with ends staggered and sheet ends over firm
bearing.
2.
[If tongue-and-groove panels are not used,] Install sheathing clips between adjacent sheets
between roof framing members.
3.
Leave [1/8] [__] inch expansion space at panel ends and edges.
4.
Secure to supports with [nails] [screws] spaced maximum [6] [__] inches on center along edges
and maximum [12] [__] inches on center in field of panels.
L.
Wall Sheathing:
1.
Place panels [parallel] [perpendicular] to framing members, with ends over firm bearing [and
staggered].
2.
[If diagonal corner braces are not installed,] At corners, place sheathing for a horizontal
distance of [48] [__] inches.
3.
Leave [1/8] [__] inch expansion space at panel ends and edges.
© 2016, SpexPlus, Inc.
1Q 2016
061100-5
Framing and Sheathing
4.
3.2
Secure to supports with [nails] [screws] spaced maximum [6] [__] inches on center along edges
and maximum [12] [__] inches on center in field of panels.
M.
Floor Decking:
1.
Place panels perpendicular to framing members, with ends over firm bearing and staggered.
2.
Leave [1/8] [__] inch expansion space at panel ends and edges.
3.
Secure to supports with [nails] [screws] spaced maximum [12] [__] inches on center along
edges and in field of panels.
N.
Subflooring:
1.
Install flooring underlayment after dust and dirt generating activities have ceased and prior to
application of finished flooring.
2.
Install building felt between floor decking and subflooring.
3.
Apply perpendicular to decking; stagger joints of underlayment in adjacent rows.
4.
Leave [1/8] [__] inch expansion space at panel ends and edges.
5.
Secure to supports with [adhesive and] [nails] [screws] spaced maximum [6] [__] inches on
center along edges and maximum [12] [__] inches on center in field of panels.
O.
Provide blocking, nailers, grounds, furring, and other similar items required to receive and support
work.
P.
Curb roof openings except where prefabricated curbs are provided. Form corners by alternating
lapping side members.
Q.
Install telephone and electrical panel backboards where indicated: Oversize panel by [12] [__] inches
on all sides.
R.
Treat field cuts and holes in preservative treated members providing structural support in accordance
with AWPA M4.
TOLERANCES
A.
Framing Members: [1/4] [__] inch from true position, maximum.
B.
Surface Flatness of Floor: [1/4] [__] inch in 10 feet maximum.
END OF SECTION
Framing and Sheathing
061100-6
© 2016, SpexPlus, Inc.
1Q 2016