Custom cross section diagram of a house roof showing the many different parts of a residential roof including structural parts the various layers exterior and various roof features such as skylight and chimney.
Terms of various parts of roof.
An eave is a horizontal edge where the roof hangs over the exterior wall.
It is essential to handle the drainage from a roof at the eave properly and protect against wind driven rain at the rake.
A purpose designed tile that covers the ridge apex of a pitched roof.
The terms pitch and slope are simply two different ways of expressing the same measurement.
Decking or sheathing the surface to which the shingles and or panels are applied.
Sheathings usually consist of wood like material called oriented strand board or then plywood.
A term used to describe a pitched roof the ends of which are also sloped and meet at an external angle.
Rafters these are wooden beams that run from the top of the roof to the bottom.
There are quite a few parts of a roof on a home including different layers and features.
Valley this is an internal angle formed by the intersection of two sloping roof planes.
Courses rows of shingles or tiles installed horizontally.
The same roof has a 4 12 or 1 3 pitch.
Dormers were initially introduced by french architect françois mansart who also happened to introduce mansard.
The wood member at the intersection is called the valley rafter.
An internal angle formed by the intersection of two roof surfaces typically at 90.
It usually consists of either plywood.
Hip this is an external angle formed by the intersection of two sloping roof planes.
Common parts components of a roof cornice.
Different parts of a roof and their importance decking sheathing.
There are several other terms that are useful to know.
Like many aspects of a home a roof is fairly complex.
The points of the roof that project from the side walls of the house.