Contributing editor scott mcbride replies.
Vaulted gable roof framing.
A plain flat ceiling gable is actually a procession of light trusses usually spaced 16 in.
A simple gable shed roof is often built using 2 4 or 2 6 lumber for the rafters and 2 4 for the collar ties.
Much depends on the structure size and the desired attic loft or headroom.
A vaulted roof structure opens the space below for stylistic reasons or for the addition of an attic or loft area.
This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.
Scissor trusses flat bottomed gable ends 10 14 2019 page 50 of the bcsi b3 states the following.
For example in texas where stick framing is common there are entire crews specializing only in framing roofs.
Each truss is composed of two opposing rafters and a ceiling joist.
A flat bottom chord gable end frame used with adjacent trusses that have sloped bottom chords see figure b3 42b creates a hinge in the wall gable interface that is below the bottom chord plane diaphragm.
Of the four basic roof shapes shed flat gable and hip only the flat roof is.
A gable roof for a shed can be built with rafters with a 1 6 ridge board or using trusses.
In a worst case scenario such as the record snow loads of the.
Rafters and ridge boards.
Framing most common types of roof gable roof.
Collar ties rafter ties tension beams structural ridge beams.
Some of these can support the roof and prevent ridge sagging and wall spreading.
In conventional gable roof framing the slope of the roof is formed by rafters that run diagonally downward from the peak of the roof to the tops of the exterior walls of.
However constructing a stick framed roof is not always easy.
To avoid these problems in a structure with a cathedral ceiling it helps to understand how a typical roof frame works.