System 2 - Built-in Batten
Same consept as System 1 except the field area is installed using a Build-in Batten thus eliminating horizontal batten strapping. This is a simplification of the same panel used in System 1 but with a batten built into the panel. This system can only be installed on a solid deck not open rafters, most roofs in North America have a solid deck anyway. This makes the installation easier by not having to deal with the carpentry involved in System 1 and still gives you most of the strength, beauty, and durability especially if no extra ventilation or structural repair is required. System 2 panels can also be installed with the same roofers preferred local metal flashings used in System 3. System 2 should be installed by a professional roofer with some experience in metal roofing.