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  • ASTM
    E1646-95 Standard Test Method for Water Penetration of Exterior Metal Roof Panel Systems by Uniform Static Air Pressure Difference
    Edition: 1995
    Unlimited Users - 1 Loc per year

Description of ASTM-E1646 1995

ASTM E1646-95

Historical Standard: ASTM E1646-95 Standard Test Method for Water Penetration of Exterior Metal Roof Panel Systems by Uniform Static Air Pressure Difference

SUPERSEDED (see Active link, below)

ASTM E1646

1. Scope

1.1 This test method covers the determination of the resistance of exterior metal roof panel systems to water penetration when water is applied to the outdoor face simultaneously with a static air pressure at the outdoor face higher than the pressure at the indoor face, that is, positive pressure. This test method is a specialized adaption of Test Method E331.

1.2 This test method is applicable to any roof area and is intended to measure only the water penetration associated with the field of roof including panel side laps and structural connections. It does not include leakage at openings or perimeter or any other details.

1.3 This test method is limited to specimens in which the side seams and attachments are clearly visible and in which the source of leakage is readily determined. Composite systems in which the source cannot be readily determined are outside the scope of this test method.

1.4 The proper use of this test method requires a knowledge of the principles of pressure and flow measurement.

1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only and may be approximate.

1.6 The text of this test method references notes and footnotes excluding tables and figures, which provide explanatory material. These notes and footnotes shall not be considered as requirements of the test method.

1.7 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. For specific hazard statements, see 8.1.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

E331 Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference

E631 Terminology of Building Constructions

E1592 Test Method for Structural Performance of Sheet Metal Roof and Siding Systems by Uniform Static Air Pressure Difference

E1680 Test Method for Rate of Air Leakage Through Exterior Metal Roof Panel Systems

Other Standards

AAMA501 Methods of Test for Metal Curtain Walls Available from Architectural Aluminum Manufacturers Association (AAMA), 1827 Walden Office Square, Suite 550, Schaumburg, IL 60173,


air; air pressure; leakage; mastic; metal; panel; ponding; rain; roof; roof panel; pressure; side lap; side seam; static; structural; thermal expansion; water; water leakage; water penetration; water-spray; Air pressure testing--building constructions/materials; Exterior metal roof panel systems; Leak testing--building constructions/materials; Mastics; Panels; Ponding; Pressure testing--building constructions/materials; Rain; Roofing materials/applications; Roof panel systems; Side lap; Side seam; Structural building materials/applications; Thermal expansion; Uniform static air pressure difference; Water penetration--roofing materials/applications; Water spray method;

DOI: 10.1520/E1646-95

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About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.