ASTM C846-94(1999)

Standard Practice for Application of Cellulosic Fiber Insulating Board for Wall Sheathing

SCOPE
1.1 This practice covers the requirements for storing, handling, and application of cellulosic fiber insulating board products.  
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.

General Information

• Status: Historical
• Publication Date: 09-Mar-1999
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.40 - Insulation Systems

Relations

• Replaced By: ASTM C846-94(2003) - Standard Practice for Application of Cellulosic Fiber Insulating Board for Wall Sheathing
• Effective Date: 01-Oct-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact
ASTM International (www.astm.org) for the latest information.
Designation: C 846 – 94 (Reapproved 1999)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Practice for
Application of Cellulosic Fiber Insulating Board for Wall
Sheathing
This standard is issued under the fixed designation C 846; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope with Section 7, it is considered a structural sheathing providing
adequate racking resistance. It is 4 ft (1.22 m) wide and ⁄2in.
1.1 This practice covers the requirements for storing, han-
(12.7 mm) or ⁄32 in. (19.8 mm) in thickness with square-cut
dling, and application of cellulosic fiber insulating board
edges on all sides.
products.
3.1.3 framing members—those portions of the studs, head-
1.2 This standard does not purport to address all of the
ers, bracing, and blocking which serve to receive the sheathing.
safety concerns, if any, associated with its use. It is the
Framing members can be wood or metal.
responsibility of the user of this standard to establish appro-
3.1.4 fasteners—nails, staples, or screws used for applica-
priate safety and health practices and determine the applica-
tion of the sheathing.
bility of regulatory limitations prior to use.
3.1.5 vertical application—sheathing applied with the long
1.3 The values stated in inch-pound units are to be regarded
edges parallel to the studs.
as the standard. The values given in parentheses are provided
3.1.6 exterior finish—the shingle, lap, or panel siding ma-
for information only.
terial, masonry veneer, or stucco applied over the sheathing as
2. Referenced Documents a protective, decorative exterior finish of the building.
2.1 ASTM Standards:
4. Significance and Use
C 208 Specification for Cellulosic Fiber Insulating Board
4.1 This standard provides recommendations for the instal-
D 1554 Definitions of Terms Relating to Wood-Base Fiber
lation in a safe and effective manner. Actual conditions may
and Particle Panel Materials
vary greatly, and additional care should be taken to ensure a
2.2 Voluntary Product Standard:
4 safe and effective installation.
ANSI/AHA A194.1 Cellulosic Fiberboard
4.2 This standard presents requirements that are general in
2.3 Federal Specifications:
nature and considered practical. They are not intended as
FF-N-105-B with Interim Amendment 4 Nails, Brads,
specific recommendations. The user should consult the manu-
Staples and Spikes: Wire Cut and Wrought
facturer for recommended application methods and procedures.
UU-B-790-A Building Paper, Vegetable Fiber: (Kraft, Wa-
4.3 This standard does not address the applicability of
terproofed, Water Repellent and Fire Resistant)
regulatory limitations. This is the responsibility of the user.
3. Terminology
5. Materials
3.1 Definitions of Terms Specific to This Standard:
5.1 Sheathing shall conform to ANSI/AHA A194.1 and
3.1.1 regular wall sheathing—described in Definitions
Specification C 208.
D 1554 and Specification C 208. It is 4 ft (1.22 m) wide with
5.2 Nails for application of sheathing to wood framing shall
square-cut edges on all sides and ⁄2 in. (12.7 mm) in thickness.
conform to Federal Specification FF-N-105-B, including In-
3.1.2 structural wall sheathing—described in Definitions
terim Amendment 4, and shall be in accordance with Table 1.
D 1554 and Specification C 208. When installed in accordance
1 25
5.3 Staples for application of ⁄2-in. and ⁄32-in. sheathing
to wood framing shall meet the following requirements:
Gage 16
This practice is under the jurisdiction of ASTM Committee C-16 on Thermal
Thickness, min, in. (mm) 0.057 (1.45)
Insulation and is the direct responsibility of Subcommittee C16.22 on Organic and
Width, min, in. (mm) 0.063 (1.59)
Nonhomogeneous Inorganic Thermal Insulations.
Length, min, in. (mm) 1 ⁄2 (38.1)
Current edition approved Feb. 15, 1994. Published April 1994. Originally
Crown, min, in. (mm) ⁄16 (11.1)
published as C 846 – 76. Last previous edition C 846 – 93.
Points chisel point
Annual Book of ASTM Standards, Vol 04.06.
divergent point
Annual Book of ASTM Standards, Vol 04.10.
divergent chisel point
Available from American Hardboard Assoc., 1210 W. Northwest Highway,
1 25
Palatine, IL. 5.4 Screws for application of ⁄2-in. and ⁄32-in. sheathing
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
on 14-gage (0.075-in.) (1.90-mm) to 20-gage (0.036-in.)
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
NOTICE:¬This¬standard¬has¬either¬been¬superceded¬and¬replaced¬by¬a¬new¬version¬or¬discontinued.¬
Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
C 846
TABLE 1 Nail Dimensions
Sheathing Thickness, Galvanized Steel Common
in. (mm) Roofing Nails Nails
Gage 11 11 ⁄2 (6d)
Length, min, in. (mm) 1 ⁄2 (38.1) 2 (50.8)
1 7 17
⁄2 (12.7) Head diameter, min, in. (mm) ⁄16 (11.1) ⁄64 (6.75)
A
Wire diameter, min, in. (mm) 0.120 (3.06) 0.1130 (2.87)
Gage 11 10 ⁄4 (8d)
3 1
Length, min, in. (mm) 1 ⁄4 (44.5) 2 ⁄2 (63.5)
25 7 9
⁄32 (19.8) Head diameter, min, in. (mm) ⁄16 (11.1) ⁄32 (7.14)
A
Wire diameter, min, in. (mm) 0.120 (3.06) 0.131 (3.33)
A
Prior to galvanizing.
(0.91mm) steel studs shall meet the following requirements: framing, space fasteners 6 in. (152 mm) (Note 1) on center.
Apply perimeter fasteners 3 in. (76 mm) (Note 1) on center and
Head type bugle head
Head diameter, min, in. (mm) ⁄16(7.94) 3
a minimum of ⁄8 in. (9.5 mm) from the edge. Apply staples
Length, min, in. (mm) 1 ⁄4 (31.8)
(5.3) vertically with the crown parallel to the framing member.
Major diameter, in. (mm) ⁄64 (3.57)
Drive fasteners flush with the sheathing surface, but do not
Minor diameter, in. (mm) ⁄64 (2.78)
Point drill point
countersink. For metal framing, space the fasteners 5 in. (127
mm) around the perimeter of the sheets and 10 in. (254 mm)
5.5 Framing Members shall be of such size and quality as
into intermediate framing.
to be structurally adequate for the type of building being
constructed.
NOTE 1—When bracing strength is provided separately, intermediate
5.5.1 Stud spa
...