The definitions are arranged in alphabetical order:

A | B | C | D | E | F | G | H | I | L | M | N | O | P | Q | R | S | T | U | V | W

Saturant:: Asphalt used to impregnate an organic felt base material.
Saturated felt:: An asphalt-impregnated felt used as an underlayment between the deck and the roofing material.
Self-sealing shingles:: Shingles containing factory-applied strips or spots of self-sealing adhesive.
Self-sealing strip or spot:: Factory-applied adhesive that bonds shingle courses together when exposed to the heat of the sun after application.
Selvage:: That portion of roll roofing overlapped by the succeeding course to obtain double coverage.
Shading:: Slight differences in shingle color that may occur as a result of normal manufacturing operations.
Sheathing:: Exterior grade boards used as a roof deck material.
Shed roof:: A roof containing only one sloping plane. Has no hips, ridges, valleys or gables.
Single coverage:: Asphalt roofing that provides one layer of roofing material over the deck.
Slope:: The degree of roof incline expressed as the ratio of the rise, in inches, to the run, in feet.
Smooth-surfaced roofing:: Roll roofing that is covered with ground talc or mica instead of granules (coated).
Soffit:: The finished underside of the eaves.
Soil stack:: A vent pipe that penetrates the roof.
Span:: The horizontal distance from eaves to eaves.
Specialty eaves flashing membrane:: A self-adhering, waterproofing shingle underlayment designed to protect against water infiltration due to ice dams or wind driven rain.
Square:: A unit of roof measure covering 100 square feet.
Square-tab shingles:: Shingles on which tabs are all the same size and exposure.
Starter strip:: Asphalt roofing applied at the eaves that provide protection by filling in the spaces under the cutouts and joints of the first course of shingles.
Steep slope application:: Method of installing asphalt shingles on roof slopes greater than 21 inches per foot.
Step flashing:: Flashing application method used where a vertical surface meets a sloping roof plane.
Strip shingles:: Asphalt shingles that are approximately three times as long as they are wide.

Tab:: The exposed portion of strip shingles defined by cutouts.
Talc:: See back surfacing.
Telegraphing:: A shingle distortion that may arise when a new roof is applied over an uneven surface.
Three-dimensional shingles:: See laminated shingles.
Top lap:: That portion of the roofing covered by the succeeding course after installation.

UL:: Underwriters Laboratories, Inc.
UL label:: Label displayed on packaging to indicate the level of fire and/or wind resistance of asphalt roofing.
Underlayment:: Asphalt saturated felt used beneath roofing to provide additional protection for the deck.

Valley:: The internal angle formed by the intersection of two sloping roof planes.
Vapor retarder:: Any material used to prevent the passage of water vapor.
Vent:: Any outlet for air that protrudes through the roof deck such as a pipe or stack. Any device installed on the roof, gable or soffit for the purpose of ventilating the underside of the roof deck.
Vent sleeve:: See collar.

Woven Valley:: Method of valley construction in which shingles from both sides of the valley extend across the valley and are woven together by overlapping alternate courses as they are applied. The valley flashing is not exposed.