Pitched Roof Roof Structure Terminology

The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness.

Pitched roof roof structure terminology.

2 4 truncated duo pitched roof. These roofs often include living accommodation in the roof void. Easily identified by their triangular shape gable roofs are generally two sided with a peak formed at the top hip. A purlin normally supports the rafters where the two pitches on the same elevation meet.

Often used in attics to add light and a pleasing design to the house. Angle a equals angle b. 2 1 duo pitched roof. Angle f equals angle g.

A roof that has two pitches on each slope. This is the most common roof shape with equal pitches on either side i e. Pitched roofs are constructed in two ways. The butt of a shingle is the end that faces down roof.

The slope of a roof. Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist. A horizontal timber beam providing intermediate. A low wall that projects beyond the eves at the edge of a roof.

The inherent strength and integrity of the triangular form makes the roof a sound structure. Cupola a relatively small roofed structure generally set on the ridge or peak of a main roof area. Part of roof construction. All four sides slope downwards and are all equal in length to form a ridge at the top of the roof.

This truss form is often introduced into domestic housing in conjunction with the conventional duo pitched roof to form an interesting roof line.