ROOF NAMES PAGE
Most of us have heard of Gable and Hip roofs and know what an Eaves is, these are all illustrated here along with some less common terms that are used in building works.
Other common usage words include; A soffit for instance is the underside of an eaves. Thus you can work out what a soffit board is.
A good diagram exists at https://sdelaysam.files.wordpress.com/2011/06/