| Flashing Cement |
Trowel able mastic used for waterproofing
and reinforcing and as an adhesive for flashing areas. |
| Flood Coat |
Top layer of waterproofing over top layer
of paper on built-up roof. |
| Foam Roofs |
Polyurethane foam applied by spray in
multiple coats. A top coat is then applied to protect foam from
moisture and the sun's ultraviolet rays. |
| Insulation Barriers |
A vent or device to allow moisture or vapor
to escape from insulation through roofing. |
| Membrane |
Paper, rubber, modified bitumen or other
type of roofing sheet. |
| Mineral Roof |
See Composition roof. |
| Modified Bitumen |
A single-ply rolled roofiing system. Torch
applied. Made from Modified Asphalt Bitumens. |
| Paper |
A roofing ply or layer of paper in a
built-up roof. |
| Parapet |
Wall along the edge of the roof. |
| Ply |
A layer of roof membrane. |
| Primer |
A thin paint or coating used to prepare the
surface of a roof for additional coatings. |
| Ribbed Roof |
See Corrugated Roof. |
| Roll Roofiing |
Roofing Paper. A term commonly used to
describe mineral rolled roofing. |
| Roof Mat |
The layers of built-up roof on top of roof
deck or insulation. |
| Roof Square |
the measuring unit in the
industry - one square is an area 10 feet by 10 feet or 100 square feet. |
| Roofing System |
The various components that combine to
waterproof, weatherproof and insulate a building's top surface. |
| Saturated Felt |
Roofing paper saturated or impregnated with
Bitumen. |
| Single-Ply |
A roofing alternative to built-up roofs.
Commonly made of rubber (similar in appearance to an inner tube) the
membrane is rolled out in sheets. Seams are heat welded or sealed with
adhesive. |
| Slope |
Angle of roof to horizontal. |
| Standing Seam Roof |
Similar to a ribbed metal roof except
vertical "standing seam" approximately 2" in height are used to
strengthen the metal panels. |
| Valley |
Area where two roof slopes meet. |
| Vent |
A pipe or other device designed to allow
water vapor or gas to pass into the atmosphere from inside the building
or roofing system. |
