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1.1 This specification is applicable to manufactured polymeric materials used to provide a rainscreen function, a means for the drainage of liquid moisture and the ventilation of vapor moisture that enters an above-grade exterior wall assembly. Rainscreen materials that comply with this specification are intended to be used behind exterior cladding products and intended to cover one hundred percent (100 %) of the wall area that is designed to provide a rainscreen function to resist water infiltration.
1.2 This specification addresses the following types of rainscreen materials:
1.2.1 Type A—entangled mesh materials.
1.2.2 Type B—formed/textured sheet material.
1.2.3 Type C—formed battens.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Other StandardCAN/CGSB 51.33-M89 Vapor Barrier Sheet, Excluding Polyethylene, for Use in Building Construction
C578 Specification for Rigid, Cellular Polystyrene Thermal Insulation
C1338 Test Method for Determining Fungi Resistance of Insulation Materials and Facings
D3045 Practice for Heat Aging of Plastics Without Load
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
D5322 Practice for Laboratory Immersion Procedures for Evaluating the Chemical Resistance of Geosynthetics to Liquids
D6108 Test Method for Compressive Properties of Plastic Lumber and Shapes
D6364 Test Method for Determining Short-Term Compression Behavior of Geosynthetics
E84 Test Method for Surface Burning Characteristics of Building Materials
E631 Terminology of Building Constructions
E2273 Test Method for Determining the Drainage Efficiency of Exterior Insulation and Finish Systems (EIFS) Clad Wall Assemblies
G154 Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials
ICS Number Code 91.060.10 (Walls. Partitions. Facades)
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ASTM E2925-19a, Standard Specification for Manufactured Polymeric Drainage and Ventilation Materials Used to Provide a Rainscreen Function, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top