Measured by rise in inches for each 12 inches of horizontal run: A roof with a 4-in-12 slope rises 4 inches for every foot of horizontal distance (also known as roof pitch).
The common measurement for roof area. One square is 100 square feet (10 by 10 feet).
The first row of shingles applied to the base of your roof.
The upper portion of a side wall that comes to a triangular point at the ridge of a sloping roof.
A non-corrosive, non-straining material used along the eaves and rakes to allow runoff to drip clear of underlying construction.
A type of roof containing sloping planes of the same pitch on each side of the ridge. Contains a gable at the end.
The surface installed over the supporting framing members to which the roofing is applied.
Fibrous material saturated with asphalt (often called tar paper or underlayment) and used as a secondary layer of protection for the roof deck.
The peak of your roofline along it’s top.
The portion of your roof where two slopes of intersect.
Ventilation that is applied underneath your roof’s ridge.
Pieces of metal used to prevent the seepage of water around any intersection or projection in a roof system, such as vent pipes, chimneys, valleys, and joints at vertical walls.
The peak of your roofline going downward.
An opening for passage of air through your roof.
The overhanging lower edge of your roof.
Waterproofing protection beneath your roof’s deck and shingles.
The side of your roof’s slope.