A roof is made up of a system of products working together and it’s important to be clear on the terminology, especially since the parts of a roof can be referred to in different ways.
Eaves: The eaves of a roof is its lowest horizontal edge. The eaves may terminate flush with the outer face of the wall, in which case it is known as a 'flush eaves'. It may also project out beyond the external wall, with a soffit below.
Verge: the edge of a roof which runs from eaves to ridge at a gable.
Gable: The upper part of a side wall (or flank wall), usually triangular in shape, that comes to a point at the ridge of a sloping roof.
Rafters: sometimes referred to as common rafters, these inclined lengths of timber rise from the eaves at the bottom of the roof to the ridge apex at the top. Rafters support a pitched roof covering.
Ridge: The highest point of a pitched roof that receives the head of the spars (also called rafters or common rafters).
Ridge Tile: a purpose-designed tile that covers the ridge apex of a pitched roof.
Hipped roof: a term used to describe a pitched roof, the ends of which are also sloped and meet at an external angle.
Valley: an internal angle formed by the intersection of two roof surfaces, typically at 90°. The wood member at the intersection is called the valley rafter.
Abutment: a junction where a pitched roof surface adjoins a wall or similar structural feature This is commonly seen in roof and building extensions.