Valleys are formed when two sloping roof sections drain toward each other.

These two very formal cars had a removable roof section over the front seat and a glass division window.

Additionally the roof section of the old factory has been cut into halves, allowing a walk through it.

The lining is attached to suspension points welded to the roof section.

That roof section is at least fifteen feet thick, must weigh about five hundred tons.

Just a few minutes after, the fire caused the collapse of a roof section which fell over the children, infants and employees below.

They end toward the top in a hollow section, which then takes on the roof sections.

The rear roof section was detachable to make the car into a pick-up.

Total internal reflection from the roof section flips the image laterally.

Tiles were added on the roof section along with more faces.