ABC Roofing Terms Glossary
S
| Term | Definition |
|---|---|
| Saturant |
Asphalt used to impregnate an organic felt base material. |
| Self-sealing shingles |
Shingles containing factory-applied strips or spots a thermal sealing tab cement to firmly cement the shingles together automatically after they have been applied properly and exposed to warm sun temperatures. In warm seasons, the seal will be complete in a matter of days. In colder seasons, sealing time depends on the temperature and amount of direct sunlight hitting the shingles. Hand sealing with plastic cement should be done to ensure sealing in winter. |
| Self-sealing strip or spot |
Factory-applied adhesive that bonds shingle courses together when exposed to the heat of the sun after application. Also known as self-sealing cement. |
| 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. "Step sheathing" is used alone or in combinations with solid sheathing for installation of tiles or shakes. Step sheathing allows air circulations under the tiles by using 1-by-6 or 2-by-6 boards that are evenly spaced so that air can move under the tiles or shakes. |
| 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). |