- 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 …