Caulk and the reveal joint

Basically, you're putting a bead of caulk in this joint before you put it up, and if it's an architectural panel, the factory will pre-butyl that edge, but we usually caulk it, field caulk it, or recommend it as field caulk, especially in the inclement weather. When it gets to be cold, that butyl moves real, the viscosity stiffens up. So these panels, like I said, they fit together pretty tightly, and this reveal, this is an architectural reveal joint. This joint can vary, and when I say it varies, you can order it as an eighth inch and less reveal, and this one appears to be an eighth inch and less. That could be field caulked, but it also appears to be a nice sight line, so it just depends if it's a washdown environment.