While a windows beauty can never be expressed in numbers… its performance can. Preservation Windows are certified by subjecting them to the battery of ASTM (American Society for Testing and Materials) tests for air infiltration, water infiltration, and structural performance. These tests are part of the accepted industry standard for windows.* Independent third parties, from an AAMA (American Architectural Manufacturers Association) approved testing laboratory, witness all tests. AAMA is a national trade association that establishes voluntary standards for the window and door industry. The AAMA administrator issues the certification.
Air Infiltration- Preservation Windows are tested for air infiltration using the industry’s rigorous air infiltration resistance testing procedure. Test ASTM E 283
Water Resistance Preservation Windows are subjected to a driving water spray of five gallons per hour/per square foot (equals rainfall of eight inches per hour) at a simulated wind speed of over 60 mph. Test ASTM E 547
Structural Load Preservation Windows are subjected to interior (negative) and exterior (positive) structural load conditions simulating a wind speed of over 190 mph (the highest ranking on the Hurricane Damage Potential Scale is a Category 5, which is reserved for those hurricanes which exceed 155 mph wind speeds). Test ASTM E 330.
Underwriters Laboratory In addition to AAMA Certification, the vinyl used in Preservation Windows is also classified by Underwriters Laboratories. As a consumer , you see UL listed products such as hair dryers, coffee pots and power tools everyday. These same safety considerations also apply to manufacturers of building materials. We voluntarily submit to UL bi-yearly testing and quarterly inspections to assure that Preservation windows are UL Classified to ASTM E84. to learn more, visit www.ul.com