Learn more about Vertical Siding Landing Page from CertainTeed..The Traditional Look of Alternating Wide and Narrow Cedar Boards. With Board Batten, CertainTeed has recreated a siding favored by early se.ers to protect and beautify homes and outbuildings. Alternating wide and narrow vertical panels combine in a simple, yet beautiful, design well suited to distinctive architectural .Re siding your house with Har.Panel vertical sidingor combining it with Har.Plank lap sidingis sure to add visual punch to your design. The beauty of Har.Panel vertical siding is that it is unique without being too trendy. We use James Harfor many reasons .