Built-up Roof
A low-slope (or flat-seeming) roof covered with alternating layers of roofing felt and hot-mopped asphalt and topped off with a layer of gravel.
Cornice
The portion of the roof projecting out from the side walls of the house.
Counterflashing
The flashing which is embedded at its top in a wall or other vertical structure and is lapped down over shingle flashing.
Courses
Horizontal rows of shingles or tiles.
Drip
The strip of metal extending out beyond the eaves or rakes to prevent rainwater from rolling around the shingles back onto the wooden portion of the house.
Eaves
The lower edge of a roof (usually overhanging beyond the edge of the house).
Fascia
Trimboard behind the gutter and eaves.
Flashing
Sheet metal or other material used at junctions of different planes on a roof to prevent leakage.
Felt
The “tar paper” used by a roofer, usually made of a combination of asphalt and either paper or rags.