Click on colorful terms to see a picture. Some terms, such as various methods, will not have a picture.
Eaves: The horizontal, lowest edge of a sloped roof that extends beyond the exterior wall.
Eaves Flashing: Additional layer of roofing material applied at the eaves to help prevent damage from water backup.
Edging Strips: Boards nailed along eaves and rakes after cutting back existing wood shingles to provide secure edges for reroofing with asphalt shingles.
Ell: An extension of a building at right angles to its length, forming an “L” shape.
End Laps: When installing rolled products in roofing, the area where a roll ends on a roof, and is overlapped by the next section of rolled material.
EWA: Engineered Wood Association. Tests and sets standards for all varieties of plywood used in the US.
Exposed Nail Method: Application of roll roofing in which all nails are driven into the cemented, overlapping course of roofing. Nails are exposed to the weather.
Exposure: The area on any roofing material that is left exposed to the elements.
Exposure I Grade Plywood: Type of plywood approved by the American Plywood Association for exterior use.
Fascia: A vertical or steeply sloped roof or trim located at the perimeter of a building. Typically, it is a border for the low-slope roof system that waterproofs the interior portions of the building.
Fasteners: Nails or staples used to secure roofing to the deck.
Feathering Strips: Tapered wood filler strips placed along the butts of old wood shingles to create a level surface when reroofing over existing wood shingle roofs. Also called horsefeathers.
Felt: Fibrous material saturated with asphalt and used as an underlayment or sheathing paper.
FHA: The Federal Housing Authority sets construction standards throughout the US.
Fiberglass Mat: An asphalt roofing base material manufactured from glass fibers.
Flange: Metal pan extending up or down a roof slope around flashing pieces. Usually at chimneys and plumbing vents.
Flashing: Pieces of metal or roll roofing used to prevent seepage of water into a building around any intersection or projection in a roof such as vent pipes, chimneys, adjoining walls, dormers, and valleys. Galvanized metal flashing should be minimum 26-gauge.
Flashing Cement: Sealant designed for use around flashing areas, typically thicker than plastic cement.
Free-Tab Shingles: Shingles that do not contain factory-applied strips or spots of self-sealing adhesive.