Roofing Terminology Glossary

Common roofing terms explained

Metal flashing along roof edges

Metal sheets that prevent water from entering joints

Ceramic-coated particles on shingle surface

Ridge of ice at roof edge that prevents drainage

The steepness of a roof expressed as a ratio of vertical rise to horizontal run (e.g., 6:12). See our complete guide. Learn more →

Ventilation installed along roof peak

The angle of a roof surface, often used interchangeably with pitch. Measured in degrees or as a ratio. Learn more →

Underside of roof overhang

Water-resistant barrier under roofing material

Internal angle where two roof slopes meet