The answer to many of your technical questions can be found here. Our Code Compliance page has links to all the latest DECRA approvals, offering the most up-to-date information.
If you want to know what makes DECRA panels perform so well, take a look at the Panels Layers section. Each layer and process that makes a DECRA panel from start to finish is described in detail.
These tools can also be downloaded for future use. If it is specifications or technical drawings that you need DECRA offers a CSI 3-Part Spec in MS Word and pdf formats as well as CAD drawings in dwg and jpg formats.