Series 32 is a Batten Strip System that has three different extrusions to enclose the system: Joint Extrusion, Perimeter Extrusion, and Outside Corner Extrusion. Each one of these extrusions is made up of three pieces: base, retainer, and cover. The non-progressive install is very easy with flat ACM pieces sliding into the extrusions. The ACM pieces can be fabricated on site, or fabricated by our shop.