Vinyl Replacement Windows
WINDOWS PERFORMANCE RESULTS
✔ Pass Air Infiltration
✔ DP45 Water Resistance
✔ DP45 Structural Load
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.
Preservation Windows are tested for air infiltration using the industry’s rigorous air infiltration resistance testing procedure. Test ASTM E283.
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 51 mph. Test ASTM E547.
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 162 mph wind speeds). Test ASTM E330.
*(ANSI/AAMA/NWWDA 101 I.S. 2-97)