A - E | F - I | J - O | P - Z         Pitch 3-Tab   Re-sheet Timberline®   Ridge Tear-off   Sheathing Underlayment   Soffit Valley

Pitch: Ratio of the rise of the roof to the span of the roof.

Re-sheet: Installing new decking after all layers of shingles have been torn off. (sometimes referred to as a tear-off and re-sheet)

Ridge: A beginning or termination point at the top of the roof.

Sheathing: The plywood, wood boards or planks which roofing is applied. (also see decking)

Soffit: The space between the eave and the overhang of the house.

3-Tab: A standard composition shingle that is 3 feet long with slits every 12 inches.

Timberline^®: GAF Manufacturer's Trademark name for laminated wood shake style shingles.

Tear-off: Removal of existing roofing materials down to the roof deck.

Underlayment: Asphalt based rolled materials designed to be installed under main roofing materials to serve as added protection. (commonly referred to as 30 lb felt)

Valley: Area where two adjoining sloped roof planes intersect on a roof creating a "V" shaped depression.