Notched Gable Roof

At the top where the rafters meet they are either angled to meet at a point or attached to a horizontal ridge beam.

Notched gable roof.

Typically in the truss calc package that is submitted there is a detail showing this notch detail. A gable roof is the classic most commonly occurring roof shape in those parts of the world with cold or temperate climates. A purlin roof consists of horizontal logs that are notched into the gable wall logs. The roof rafters provide integral structural support to the roof.

The latter are progressively shortened to form the characteristic triangular gable end. Each beam is notched at the bottom called a birdsmouth so that it rests flat on top of each wall. 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. Those gable trusses are notched for outlookers.

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. You can use common rafters on any shed roof but they make the most sense when constructing a gable roof or lean to type. Remember that this truss is covered with sheathing and sits on a continuous bearing wall. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.

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.