Ridge

Ridge,

the upper angle of a roof. It has usually, though by no means always, a piece of timber running along it, called the ridge piece, upon which the upper ends of the rafters rest; the tiles with which it is covered are called ridge-tiles. These are sometimes made ornamental, good instances of which are found at Great Malvern and Lincoln. — Parker, Glossary of Architecture, s.v. SEE RIB.

⇒Definition of ridge