A - E | F - I | J - O | P - Z         Laminated shingles Mop Down   Mansard OSB   Metal Edge Overlay

Laminated shingles: Shingles made from two separate pieces that are laminated together. Example: Timberline^™

Mansard: A roof design with a nearly vertical roof plan that ties into a roof plane of less slope at its peak.

Metal Edge: An installed metal lip that keeps shingles up off of the deck at edges and extends shingles out over eaves and gutters to prevent water from backing up under shingles. (also see drip edge)

Mop Down: Modified roll roofing designed for flat roof applications, a better alternative to a 90-pound roll roofing application.

OSB: (Oriented Strand Board) A preferred application for decking made from wood chips and laminated glues.

Overlay: To install a new layer of roofing over an existing layer of roofing.