ASTM E 2359/E 2359M:2025

1.1 This test method covers a procedure to determine the resistance of a section of an exterior insulation and finish system (EIFS) or EIFS with drainage to outward loads imposed on an existing exterior wall assembly that has been in place on the building for an unspecified period of time. It is destructive in nature within the localized areas tested and requires appropriate repair of the EIFS cladding and sheathing once the test procedure has been completed. This test procedure utilizes mechanical methods to obtain information, which may be helpful in evaluating the natural application of negative wind loads on the assembly. Some variability of results should be anticipated within the wall assembly tested due to differences in installation procedures, exposure, or abuse subsequent to application. 1.2 This test method is suitable for use on assemblies that have been in place a short time (new construction), as well as for longer periods in order to evaluate detrimental effects on the lamina, insulation attachment, water resistive barrier (if used), substrate integrity, and attachments after exposure to weather and other environmental conditions. It is not intended to evaluate the performance of structural framing. Test results on any particular building may be highly variable depending on specimen location and condition, and are subject to interpretation by the test specifier. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.4 This standard may involve hazardous materials, operations, or equipment. This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and to determine the applicability of regulatory limitations prior to use. Note 1: Due to variations in exposure and construction assemblies, field specimens selected for testing utilizing this test method may experience sudden failure and release of the imposed loads. See Note 7 for further information. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

91.120.30