based on specific design pressures (DP). ▫ Water penetration resistance (ASTM E and ASTM E). ▫ Uniform load deflection test (ASTM. ASTM International E Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Wall by Cyclic Static Air Pressure. ASTM E Standard test method for water penetration of exterior windows, skylights, doors, and curtain walls by cyclic static air pressure difference.
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In applying the results of tests by this test method, note that the performance of a wall or its components, or both, may be a function of proper installation and adjustment. In r547, the performance will also depend on the rigidity of supporting construction and on the resistance of components to deterioration by various causes, vibration, thermal expansion and contraction, etc.
For specific hazard statements, see 7. Some designs are more sensitive than others to this upward moving water. The ASTM E testing is performed by applying water to the exterior of the test specimen while lowering the pressure inside by means of an air chamber built on the inside or opposite side of the test specimen. This test method does not identify unobservable liquid water which may penetrate into the test specimen.
BDG has extensive knowledge asmt most building systems and specializes in forensic water intrusion investigations. These factors should be fully considered prior to specifying the test pressure difference to be used.
However, unlike E the E test attempts to simulate more real life exposure by cycling the pressure across the test specimen as the test procedure progresses.
ASTM E — QED LAB | Air Barrier Testing | AAMA Accredited Window Testing
For specific hazard statements, see 7. To watch a three minute video for an AAMA The list below shows what we have discussed so far and the next steps. BDG utilizes professional testing equipment that is calibrated to each specific testing standard for accurate results.
For a negative pressure system, the water-spray grid would be located outside the chamber and the air supply would be replaced by an air-exhaust system. Water that penetrates the assembly, but does not result in a failure as defined herein, may have adverse effects on the performance of contained materials such as sealants and insulating or laminated glass.
The water spray system has nozzles spaced on a grid to deliver water so that the test specimen is wet uniformly, including those areas vulnerable to water penetration. I also detailed the value of assembly testing which evaluates the complex details in real building walls versus material testing that evaluates a specific property without linkage to the wall geometry and the different substrate conditions in the wall.
In my last blog I listed the steps for the E test and in this blog I have left kept those steps but in bold font for comparison. These factors should be fully considered prior to specifying the test pressure difference to be used. This test method does not address these issues. 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.
Some designs are more sensitive than others to this upward moving water. Building Diagnostics Group, Inc. Blog Building Wall Assemblies: Give us a call today for more information or to discuss you next project. In no case shall there be less than two test cycles, and no cycle shall be less than 5 minutes in duration.
The ASTM E Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Cyclic Static Air Pressure Difference is a testing standard of procedures used to determine the water penetration resistance of windows, curtain walls, skylights, and doors when water is applied using a calibrated spray apparatus while simultaneously applying cyclic static pressure to opposite sides of the test specimen.
Most generic specifications call for a minimum testing pressure of 6. See the illustration below.
ASTM E 547-16
In service, the performance will also depend on the rigidity of supporting construction and on the resistance of components to deterioration by various causes, vibration, thermal expansion and contraction, etc. In my last blog, I focused on a long standing and very useful laboratory test used to measure water penetration: The air-pressure differences acting across a building envelope vary greatly.
The test-pressure difference or differences at which water penetration is to be determined, unless otherwise specified, shall be Pa 2. The E test, like E, atsm the details of the instrumentation similar to ASTM E to create a pressure difference across a multitude of building assemblies during the calibrated water spray minimum rate of 3.
We also looked at how sealants and adhesives provide air leakage resistance and how the air leakage is related to water ingress as well.
The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. If you are looking for a reputable second or third-party testing company to perform accurate professional testing, provide concise reports, and help you through the entire process, contact BDG today. This allows us to not only properly test fenestrations on new construction projects, but also pinpoint the cause of any test failures and provide accurate recommendations to achieve successful testing results.
These methods are often used both for determining the cause of existing building air leakage and for confirming the adequacy of newly constructed wall designs. Our field consultants are properly trained and knowledgeable of all testing standards. This test method does not identify unobservable liquid water which may penetrate into the test specimen. Historical Version s – view previous versions of standard. We provide testing services throughout the United States from our headquarters located in Atlanta, GA.
ASTM E 547
The testing pressure differential is usually determined by the testing specifier. Failures during quality assurance new construction testing can result in unnecessary delays that impact your bottom line. The calibrated spray apparatus spray-rack system delivers water to the test specimen at a rate of ast. This test method does not address these issues. 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.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Link to Active This link will always route to the current Active version of the standard. It is difficult to simulate the identical complex wetting conditions that can be encountered in service, with large wind-blown water drops, increasing water drop impact pressures with increasing wind velocity, astmm lateral or upward moving air and water.
The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.