Each beam is notched at the bottom called a birdsmouth so that it rests flat on top of each wall.
Notched gable roof.
You can use common rafters on any shed roof but they make the most sense when constructing a gable roof or lean to type.
Gable roof in a nutshell.
The latter are progressively shortened to form the characteristic triangular gable end.
Those gable trusses are notched for outlookers.
A gable roof is the classic most commonly occurring roof shape in those parts of the world with cold or temperate climates.
Remember that this truss is covered with sheathing and sits on a continuous bearing wall.
The roof rafters provide integral structural support to the roof.
A purlin roof consists of horizontal logs that are notched into the gable wall logs.
A hip roof or hipped roof is a type of roof design where all roof sides slope downward toward the walls where the walls of the house sit under the eaves on each side of the roof.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
By comparison a gable roof is a type of roof design where two sides slope downward toward the walls and the other two sides include walls that extend from the bottom of.
If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.
At the top where the rafters meet they are either angled to meet at a point or attached to a horizontal ridge beam.