ASTM E2925-19a PDF
Name in English:
St ASTM E2925-19a
Name in Russian:
Ст ASTM E2925-19a
Original standard ASTM E2925-19a in PDF full version. Additional info + preview on request
Full title and description
Standard Specification for Manufactured Polymeric Drainage and Ventilation Materials Used to Provide a Rainscreen Function — ASTM E2925-19a. This specification defines performance, material, labeling, and reporting requirements for manufactured polymeric products used to provide a rainscreen drainage and ventilation function behind exterior cladding systems.
Abstract
This specification covers requirements and corresponding test methods for manufactured polymeric materials intended to provide a rainscreen function (drainage of liquid moisture and ventilation of vapor moisture) in above‑grade exterior wall assemblies. It addresses three product types (Type A: entangled mesh; Type B: formed/textured sheet; Type C: formed battens) and specifies properties and test performance criteria for airflow/ventilation, drainage efficiency, thickness, compressive behavior, strength, resistance to UV and heat aging, mold/fungal growth, and water exposure, as well as specimen preparation, reporting, marking, packaging and labeling.
General information
- Status: Active (current ASTM specification, E2925-19a).
- Publication date: 2019 (approved/issued in 2019; includes amendment/changes dated August 27, 2019).
- Publisher: ASTM International.
- ICS / categories: Building façades / walls (ICS code commonly referenced for this standard: 91.060.10 Walls, partitions, facades).
- Edition / version: E2925-19a (2019 edition, with 2019 amendment included).
- Number of pages: 7 pages.
Scope
Applies to manufactured polymeric materials intended to provide a rainscreen function behind exterior cladding for above‑grade walls. The standard specifies three product types (entangled mesh, formed/textured sheet, and formed battens) and provides test/acceptance criteria and reporting requirements so products can be evaluated for drainage capability, ventilation/airflow, mechanical and environmental durability, and suitability for covering the intended wall area that is designed to act as a rainscreen. SI units are the standard units of record within the document.
Key topics and requirements
- Definition of rainscreen function and applicability to above‑grade exterior wall assemblies.
- Classification of product types: Type A (entangled mesh), Type B (formed/textured sheet), Type C (formed battens).
- Performance criteria for ventilation/airflow and drainage capacity (drainage plane function).
- Dimensional and thickness requirements and tolerances.
- Mechanical requirements: compressive behavior and strength under design loads.
- Durability testing: UV exposure, heat aging, water exposure, and mold/fungal growth resistance.
- Specimen preparation, test methods, reporting format, marking/labeling, and packaging requirements.
Typical use and users
Used by product manufacturers (polymeric drainage mats, ventilation meshes, battens), façade and enclosure system designers, building envelope consultants, architects, specifiers, testing laboratories, and code/approval authorities looking to evaluate or specify manufactured rainscreen drainage and ventilation materials for cladding systems and wall assemblies.
Related standards
Referenced or commonly associated standards include ASTM E2273 (drainage efficiency test for EIFS/clad wall assemblies), ASTM C1715 (related wall drainage tests), ASTM G154 (UV exposure practice referenced for weathering), and industry voluntary methods/specifications for rainscreen and pressure‑equalized systems (for example AAMA 508/509). The specification itself lists related ASTM terminology and test practices used in evaluating materials.
Keywords
rainscreen, drainage plane, ventilation, drainage mat, cavity ventilation, polymeric drainage material, Type A mesh, Type B sheet, Type C battens, water‑resistive barrier, cladding, façade, drainage efficiency, airflow.
FAQ
Q: What is this standard?
A: ASTM E2925-19a is a specification that defines minimum material, performance, test, reporting, and labeling requirements for manufactured polymeric drainage and ventilation materials used to provide a rainscreen function behind exterior cladding.
Q: What does it cover?
A: It covers three types of polymeric rainscreen products (entangled mesh, formed/textured sheet, and formed battens) and specifies criteria for ventilation/airflow, drainage, thickness, compressive performance, strength, UV and heat aging resistance, mold/fungal growth resistance, water exposure, specimen prep, and marking/packaging.
Q: Who typically uses it?
A: Product manufacturers, façade designers, architects, building enclosure consultants, testing laboratories, specifiers, and regulatory/approval bodies use this standard when specifying, testing, or approving polymeric rainscreen drainage and ventilation materials.
Q: Is it current or superseded?
A: As published, E2925-19a (2019 edition with amendment in August 2019) is the current ASTM specification for this topic. Users should confirm the status on the ASTM catalog or with ASTM International for any revisions after 2019.
Q: Is it part of a series?
A: It is an ASTM E06 committee document (book of standards volume for building performance and enclosure topics) and sits alongside related ASTM test methods and guides for wall drainage and façade performance; it was developed by subcommittee E06.55. It is not a multi‑part series but references and complements other wall/cladding test standards.
Q: What are the key keywords?
A: Rainscreen, drainage plane, ventilation, drainage mat, cavity ventilation, polymeric drainage materials, drainage efficiency, airflow, cladding, façade.