Pitched Roof Roof Structure Terminology

2 1 duo pitched roof.

Pitched roof roof structure terminology.

Pitched roofs are constructed in two ways. Angle f equals angle g. This is the most common roof shape with equal pitches on either side i e. It has a 1 4 pitch.

This truss form is often introduced into domestic housing in conjunction with the conventional duo pitched roof to form an interesting roof line. The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness. A pitched roof is a roof that slopes downwards typically in two parts at an angle from a central ridge but sometimes in one part from one edge to another. A 4 in 12 pitch means the roof rises 4 inches for every 12 inches of horizontal distance.

Angle a equals angle b. The word pitch was first used in the early 17th century to denote the highest point. Roof slope is expressed as the ratio of a roof s rise vertical distance to each foot of run horizontal distance.