ASTM D5635/D5635M-11

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Designation:D5635/D5635M −11
Standard Test Method for
Dynamic Puncture Resistance of Roofing Membrane
1
Specimens
This standard is issued under the fixed designation D5635/D5635M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope C578 Specification for Rigid, Cellular Polystyrene Thermal
Insulation
1.1 This test method covers the evaluation of the maximum
D1079 Terminology Relating to Roofing and Waterproofing
dynamic puncture load that roofing membrane samples can
withstand, without allowing the passage of water, when sub-
3. Terminology
jected to impact from a rigid object having a sharp edge.
3.1 Definitions:
1.2 This laboratory test can be conducted at any desired
3.1.1 For definitions of terms used in this test method, refer
temperature using membrane samples manufactured in a fac-
to Terminology D1079.
tory or prepared in a laboratory.
4. Summary of Test Method
1.3 Roof membrane specimens to which the test method is
applicable include bituminous built-up, polymer-modified
4.1 The roofing membrane test specimen, set on a thermal
bitumens, vulcanized rubbers, non-vulcanized polymeric, and
insulation substrate, is subjected to a predetermined dynamic
thermoplastic materials.
impact load created by a rigid falling puncture head. The head
1.3.1 The applicability of this test method to these mem-
falls through a quarter-circle trajectory from a vertical position
brane specimens includes their use in vegetative roof systems.
to horizontal position under gravitational acceleration.
1.4 This test method is not applicable to aggregate-surfaced
4.2 The puncture energy is increased from 5 to 50 J [119 to
membrane specimens; however, it is applicable to specimens
1190 ft·pdl] in 2.5 J [59.4 ft·pdl] increments until puncture of
having factory-applied granules.
themembranespecimenoccursoruntilthemaximumenergyis
reached.
1.5 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
4.3 Puncture of the test specimen is assessed by visual
each system may not be exact equivalents; therefore, each
examination and verified by conducting a watertightness test.
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
5. Principle of the Test Method
with the standard.
5.1 The energy at impact is equated to the potential energy
1.6 This standard does not purport to address all of the
of the raised puncture head as follows:
safety concerns, if any, associated with its use. It is the
E 5 mgH (1)
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- where:
bility of regulatory limitations prior to use.
m = mass of the puncture head (in kg or lbm),
2 2
g = gravitational acceleration (in m/s or ft/s ), and
2. Referenced Documents
H = height through which the puncture head falls (in metres
2
or feet).
2.1 ASTM Standards:
In this test method, the height is fixed at 0.51 m [1.67 ft].
2
With gravitational acceleration being equal to 9.8 m/s [32
1
This test method is under the jurisdiction ofASTM Committee D08 on Roofing
2
ft/s ], the impact energy is, thus, equal to the following:
and Waterproofing and is the direct responsibility of Subcommittee D08.20 on
Roofing Membrane Systems.
E 55·m (2)
Current edition approved Feb. 15, 2011. Published May 2011. Originally
approved in 1994. Last previous edition approved in 2004 as D5635 – 04a. DOI:
where:
10.1520/D5635_D5635M-11.
m = kg.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. E 5 53.4·m (3)
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D5635/D5635M−11
where:
m = lbm.
Increasing the mass of the puncture head from 1 to 10 kg
[2.2 to 22 lbm] in increments of 0.5 kg [1.1 lbm] increases the
puncture energy from 5 to 50 J [119 to 1190 ft·pdl] in
increments of 2.5 J [59.4 ft·pdl].
NOTE 1—A counter weight placed on the falling arm opposite to the
axis of rotation eliminates the need to include the mass of the arm in the
determination of the impact energy.
6. Significance and Use
6.1 An important factor affecting the performance of mem-
braneroofingsystemsistheirabilitytoresistdynamicpuncture
loads. This test method provides a means to assess dynamic
puncture resistance.
6.2 Thi
...