The Merchant & Evans factory-formed BD-1520 Pan & Batten System is an architectural prefinished batten seam roofing product designed for domes, radius barrels and straight or conical tapers on slopes 3" (76 mm) or greater, as well as for vertical wall applications. The system allows for both longitudinal and lateral curvatures, and is suitable for application over solid plywood substrates, gypsum deck substrates or on top of rigid insulation over decking. The internal gutter system provides a weathertight sidejoint that does not require the use of sealant.

The BD-1520 System is offered in smooth or stucco embossed textures and in a variety of finishes. Available materials include Galvalume®, aluminum, stainless steel, zinc, copper or terne coated stainless steel (TCS).