News

Perforated and Expanded Metal Updates
April 21, 2018
Nine things you should know about these building components...
EMMA Testing Update
April 27, 2016
The EMMA division has completed tests showing the effectiveness of expanded metal used as a screen for openings. For details of the three tests, see the links below. The range of values for SHGC (Solar Heat Gain Coefficient) is from 0 to 1. A window …