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Significance and Use
An important factor affecting the performance of membrane roofing systems is their ability to resist dynamic puncture loads. This test method provides a means to assess dynamic puncture resistance.
This test method can be used to compare the dynamic puncture resistance of a single type of membrane as a function of a variety of insulation substrates or, conversely, to compare the resistance of a number of membrane specimens set on a single type of insulation.
The effect of temperature on puncture resistance can be studied by conducting the test under controlled conditions using such equipment as an environmental chamber, oven, or freezer.
The test method can be useful in developing performance criteria for membrane roofing systems.
The test method can be useful in developing classifications of dynamic puncture resistance of membrane roofing systems.
While it is considered that the results obtained by this laboratory test can afford a measure of the dynamic puncture resistance of membrane roofing systems in the field, (provided that service loads and temperature conditions are known) no direct correlation has yet been established.
This test method can be useful for evaluating the dynamic puncture resistance of membranes used in vegetative roof systems.
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.
1.3.1 The applicability of this test method to these membrane specimens includes their use in vegetative roof systems.
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 either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C578 Specification for Rigid, Cellular Polystyrene Thermal Insulation
D1079 Terminology Relating to Roofing and Waterproofing
ICS Number Code 91.100.50 (Binders. Sealing materials)
UNSPSC Code 30151505(Roofing membranes)