a small tapered/sloped roof area structure that helps to channel surface water to drains. Frequently located in a valley. A saddle is often constructed like a small hip roof or pyramid with a diamond-shaped base.

undesirable excessive flow in material after application to a surface.

Southern Building Code Congress International, Inc.

shaped by grinding.

a hatch that provides access to the roof from the interior of the building. The NRCA Roofing and Waterproofing Manual—Fifth Edition -Glossary 999

the process of striking off excess concrete to bring the top surface of the concrete to the proper finish and elevation.

a nonstructural wall erected around units or curbs on a roof. Typically the framing consists of girts with a wood or metal covering attached to the frame.

a woven, nonwoven or knitted fabric composed of continuous strands of material used for reinforcing or strengthening membranes.

drainage device in the form of an outlet through a wall, parapet wall or raised roof edge lined with a soldered sheet metal sleeve.

(1) a material that has the adhesive and cohesive properties to form a seal; (2) a mixture of polymers, fillers, and pigments used to fill and seal joints where moderate movements is expected; unlike caulking, it cures to a resilient solid.

a compressible material placed in a joint before applying a sealant.

a coating designed to prevent excessive absorption of finish coats into porous surfaces; a coating designed to prevent bleeding.

a rubber or neoprene washer, sometimes metal-backed, typically placed on a fastener to prevent water from migrating into and through the fastener hole.

a joint formed by mating two separate sections of material. Seams can be made or sealed in a variety of ways, including adhesive bonding, hot-air welding, solvent welding, using adhesive tape, sealant, etc.

in single-ply and sometimes modified bitumen membrane roofing, a sample from the membrane that extends through the side lap of adjacent rolls of membrane, taken for the purpose of assessing the quality of the seam.

a membrane that can adhere to a substrate and to itself at overlaps without the use of an additional adhesive. The undersurface of a self-adhering membrane is protected by a release paper or film, which prevents the membrane from bonding to itself during shipping and handling.

a fastener that taps and drills its own hole during application.

an asphalt shingle containing a factory-applied strip or spots of heat sensitive adhesive intended to adhere the overlying shingle once installed on the roof and warmed by the sun.

a fastener that forms receiving threads when turned in a previously drilled hole.

(1) an edge or edging that differs from the main part of a fabric, granule-surfaced roll roofing or cap sheet, or other material; (2) a specially defined edge of the material (lined for demarcation), which is designed for some special purpose, such as overlapping or seaming.

the minimum or maximum temperature at which a coating, SPF or other material will perform satisfactorily.

to convert into a fixed or hardened state by chemical or physical action.

slight differences in surfacing color, such as shingle granule coloring, that may occur as a result of manufacturing operations.

an upward-curled felt side lap or end lap.

the resistance to forces that cause or tend to cause two contiguous parts of a body to slide relative to each other in a direction parallel to their contrast.