Built for beauty, durability and value, Metal Sales Classic Rib is a hard-working roof panel that performs in all seasons. Ideal for a variety of structures including pole barns, equipment storage, stables, garages, sheds and houses. This lightweight metal panel is easy to install and protects your investment beautifully and affordably. Classic Rib has a low profile rib height of 3/4 in. and is designed for attachment to the roof substrate with fasteners that penetrate the face of the panel. Fastener heads feature a gasket that prevents leaking. Classic Rib also provides you with decades of worry-free service with low maintenance requirements.