Xtend Wind & Water Testing Report
Independent third-party water and structural test results for a 42" x 84" Xtend porch window, performed by Element Materials Technology. Useful for permitting, specification, and answering durability questions about wind and water performance.
What this document covers
This is the full lab report from an accredited testing facility, documenting how a full-size Xtend unit performed under water-penetration and structural-pressure testing.
- Independent testing by Element Materials Technology (Des Moines, IA)
- Water penetration results
- Structural pressure results and equivalent wind speed
- Full sample description and construction details
- Test standards and installation method used
Test results at a glance
- Tested unit: 42" x 84" Xtend porch window, 4 track / 4 sashes
- Structural: 60 psf held for 10 seconds — equivalent to approximately 153 mph
- Water penetration: no water leakage
- Standards: ASTM E547-00 (2016) and ASTM E330/E330M-14 (2021)
- Glazing: 10-gauge clear marine-grade double-polished vinyl; powder-coated aluminum frame and sash; full Phifer BetterVue screen
Installation method tested
The unit was installed with screws fastened through the integral nailing flange of the extrusion into a wooden enclosure — the same integrated-flange method shown in the Xtend profile drawings.
