ASTM D4932-89(2006)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D4932 −89(Reapproved2006)
Standard Test Method for
Fastener Rupture and Tear Resistance of Roofing and
Waterproofing Sheets, Roll Roofing, and Shingles
This standard is issued under the fixed designation D4932; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4.2 Laboratory data will not permit prediction of field
performance,particularlylong-termperformance,andifalltest
1.1 This test method covers the determination of the force
conditions are not the same, data may not be comparable.
needed to pull a fastener through any type of roofing or
waterproofing ply sheet, roll roofing, or shingle, or to cause
5. Apparatus
fastener failure under specified laboratory conditions.
1.2 The values stated in SI units are to be regarded as the 5.1 Testing Machine—Universal or tensile testing machine
standard. The values in parentheses are for information only. with automatic load recording equipment, capable of cross-
head movement at a constant rate of 25.4 mm/min (1.00
1.3 This standard does not purport to address all of the
in./min).
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.2 Grips—Self-aligning grips or clamps for holding the
priate safety and health practices and determine the applica-
free end of the test specimen and the nailer holding jig without
bility of regulatory limitations prior to use.
slippage during the test.
2. Referenced Documents
5.3 Nailer Holding Jig—100-mm (4-in.) length of cold-
2.1 ASTM Standards: formed carbon steel, rectangular structural tubing with outside
D226Specification forAsphalt-Saturated Organic Felt Used nominal dimensions of 102 by 51 mm (4 by 2 in.) and 4.8-mm
in Roofing and Waterproofing
( ⁄16-in.) wall thickness, fabricated as shown in Fig. 1.
5.4 Wood Nailers, 33 by 89−13,+1 by 102 mm (1.5 by
3. Summary of Test Method
3.5−0.5,+0.05 by 4 in.) (nominal 2 by 4 in. lumber cut to 4
3.1 The force perpendicular to the fastener shank to tear the
in. length is appropriate). Thirty nailers are required per
sheet or to cause fastener failure is measured with the fastener
sample.
head seated and not seated (tear).
NOTE 1—The wood nailers must hold the fastener securely and remain
3.2 The force parallel to the fastener shank to rupture the
secure in the nailer holding jig during the test. The 89-mm (3.5-in.)
sheet or to cause fastener failure is measured with the head
dimension is critical for the nailer to be secure in the jig; the other
seated (rupture, head pull-through).
dimensions are not critical and may be varied so long as the nailer works.
If preferred, the operator may use continuous lengths of nailer stock up to
4. Significance and Use
1 m (40 in.) long for multiple specimens as opposed to cutting separate
4.1 Test values for the resistance of specific ply sheets, roll
nailers for each specimen.
roofing,orshinglestoselectedfastenerpull-throughmayassist
in the determination of appropriate fastener spacing. The 6. Sampling and Test Specimens
relative behavior of different fasteners and fasteners with and
6.1 Cut 15 MD specimens, 175 by 100 mm (7 by 4 in.), in
without caps may be evaluated.
themachinedirection(MD)andanother15XMDspecimensin
the cross-machine direction (XMD) from a representative
ThistestmethodisunderthejurisdictionofASTMCommitteeD08onRoofing
portion of the sheet to be tested. If no particular sheet is
and Waterproofing and is the direct responsibility of Subcommittee D08.20 on
specified, useType 1 asphalt-saturated organic felt conforming
Roofing Membrane Systems.
Current edition approved Dec. 1, 2006. Published December 2006. Originally
to the requirements prescribed in Specification D226.
´1
approved in 1989. Last previous edition approved in 2000 as D4932–89 (2000)
. DOI: 10.1520/D4932-89R06.
6.2 Thirty fasteners of the type to be tested are required. If
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
no particular fastener is specified, use galvanized roofing nails
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
with a 38-mm (1 ⁄2 in.) long 3.6-mm (0.1205-in.) diameter
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. straight shank and a 9.5-mm ( ⁄8-in.) diameter head.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D4932−89(2006)
FIG. 3 Multiple Specimens Fastened to Long Nailer
8.1.1 In ten of the MD specimens and ten of the XMD
specimens, seat the heads of the nails firmly, but without
crushing the sheet.
8.1.2 In the remaining five MD and five XMD specimens,
set the heads of the fasteners with a 1-mm (0.04-in.) gap
between the top of the sheet and the underside of the fastener
head or cap.
NOTE 3—A 1-mm (0.04-in.) thick feeler gage aids in establishing the
gap.
8.2 Measure the shank tear resistance on five of the ten MD
specimens with seated fasteners and all five with unseated
NOTE 1—Stock wall thickness is 5 mm ( ⁄16 in.).
fasteners;similarlymeasuretheshanktearresistanceonfiveof
FIG. 1Nailer Holding Jig, 100 mm (4 in.) Long, Cold-Formed Car-
the ten XMD specimens with seated fasteners and all five with
bon Steel
unseated fasteners, as follows:
8.2.1 Clamp the tongue on the narrow side of the nailer
7. Conditioning
holding jig in the lower grip of the testing machine, and slide
the nailer into the jig so that the sheet specimens are on the
7.1 Conditionallspecimensandnailersat20to25°C(68to
same side
...