ASTM D5635-04
(Test Method)Standard Test Method for Dynamic Puncture Resistance of Roofing Membrane Specimens
Standard Test Method for Dynamic Puncture Resistance of Roofing Membrane Specimens
SCOPE
1.1 This test method covers the evaluation of the maximum dynamic puncture load that roofing membrane samples can withstand, without allowing the passage of water, when subjected to impact from a rigid object having a sharp edge.
1.2 This laboratory test can be conducted at any desired temperature using membrane samples manufactured in a factory or prepared in a laboratory.
1.3 Roof membrane specimens to which the test method is applicable include bituminous built-up, polymer-modified bitumens, vulcanized rubbers, non-vulcanized polymeric, and thermoplastic materials.
1.4 This test method is not applicable to aggregate-surfaced membrane specimens; however, it is applicable to specimens having factory-applied granules.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 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.
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Designation: D 5635 – 04
Standard Test Method for
Dynamic Puncture Resistance of Roofing Membrane
1
Specimens
This standard is issued under the fixed designation D 5635; 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 3.1.1 For definitions of terms used in this test method, refer
to Terminology D 1079.
1.1 This test method covers the evaluation of the maximum
dynamic puncture load that roofing membrane samples can
4. Summary of Test Method
withstand, without allowing the passage of water, when sub-
4.1 The roofing membrane test specimen, set on a thermal
jected to impact from a rigid object having a sharp edge.
insulation substrate, is subjected to a predetermined dynamic
1.2 This laboratory test can be conducted at any desired
impact load created by a rigid falling puncture head. The head
temperature using membrane samples manufactured in a fac-
falls through a quarter-circle trajectory from a vertical position
tory or prepared in a laboratory.
to horizontal position under gravitational acceleration.
1.3 Roof membrane specimens to which the test method is
4.2 The puncture energy is increased from 5 to 50 J (119 to
applicable include bituminous built-up, polymer-modified bi-
1190 ft·pdl) in 2.5 J (59.4 ft·pdl) increments until puncture of
tumens, vulcanized rubbers, non-vulcanized polymeric, and
the membrane specimen occurs or until the maximum energy is
thermoplastic materials.
reached.
1.4 This test method is not applicable to aggregate-surfaced
4.3 Puncture of the test specimen is assessed by visual
membrane specimens; however, it is applicable to specimens
examination and verified by conducting a watertightness test.
having factory-applied granules.
1.5 The values stated in SI units are to be regarded as the
5. Principle of the Test Method
standard. The values given in parentheses are for information
5.1 The energy at impact is equated to the potential energy
only.
of the raised puncture head as follows:
1.6 This standard does not purport to address all of the
E 5 mgH (1)
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
where:
priate safety and health practices and determine the applica-
m = mass of the puncture head (in kg or lbm),
bility of regulatory limitations prior to use.
2 2
g = gravitational acceleration (in m/s or ft/s ), and
H = height through which the puncture head falls (in metres
2. Referenced Documents
or feet).
2
2.1 ASTM Standards:
In this test method, the height is fixed at 0.51 m (1.67 ft).
C 578 Specification for Rigid, Cellular Polystyrene Thermal
2
With gravitational acceleration being equal to 9.8 m/s (32
Insulation
2
ft/s ), the impact energy is, thus, equal to the following:
D 1079 Terminology Relating to Roofing, Waterproofing,
E 5 5·m (2)
and Bituminous Materials
where:
3. Terminology
m = kg.
3.1 Definitions:
or
1
This test method is under the jurisdiction of ASTM Committee D08 on Roofing
E 5 53.4·m (3)
and Waterproofing and is the direct responsibility of Subcommittee D08.20 on
Roofing Membrane Systems.
where:
Current edition approved Jan. 1, 2004. Published January 2004. Originally
m = lbm.
approved in 1994. Last previous edition approved in 2003 as D 5635 – 03.
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 Increasing the mass of the puncture head from 1 to 10 kg (2.2
Standards volume information, refer to the standard’s Document Summary page on
to 22 lbm) in increments of 0.5 kg (1.1 lbm) increases the
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D5635–04
puncture energy from 5 to 50 J (119 to 1190 ft·pdl) in so that the puncture head can be secured to it at a distance that
increments of 2.5 J (59.4 ft·pdl). is 0.51 m (1.67 ft), 60.5 %, from the point of rotation at the
base.
NOTE 1—A counter weight placed on the falling arm opposite to the
7.1.2 The shape and dimensions of a typical puncture head
axis of rotation eliminates the need to include the mass of the arm in the
are given in Fig. 2. When mounted on the arm, the face of the
determination of the impact energy.
puncture head is parallel to axis of rotation. Several heads of
6. Significance and Use
different mass may be needed. Alternatively, a means for
6.1 An important factor affecting the performance of mem- adding weights to a given puncture head to increase its mass
brane roofing systems i
...
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