A lot of research and testing has gone into the development of our windows.
In order to view the PDFs you are required to have Adobe Acrobat Reader.

WINDOW	TESTING REPORT
Series 800 Heavy Picture Window - Report 1
Series 800 Heavy Picture Window - Report 2
Series 800 True Divided Lite Heavy Picture Window Report
Series 800 Twin Heavy Picture Window Report
Series 840 Heavy Picture Window (Inside Glaze) Report
Series 840 True Divided Lite Heavy Picture Window (Inside Glaze) Report
Series 900 Casement Window
Series 900 Casement Window with Twin Series 800 Heavy Picture Window Report
Series 900 Twin Casement Window Report
Series 990 Awning Window Report