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ASTM E 1646 Document Information:
Title
Standard Test Method for Water Penetration of Exterior Metal Roof Panel Systems by Uniform Static Air Pressure Difference
ASTM International
Publication Date:
Apr 15, 1995
Scope:
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 E
331.
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.
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.
The proper use of this test method requires a knowledge of the
principles of pressure and flow
measurement.
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.
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.
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 7.1.
Keywords:
- 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
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