Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to.
Pitched roof framing plan.
Pitch for a gable roof the most common is generally 1 4 or 1 3.
If going the non trussed route for a moderate to low pitched roof the rate per square foot of framing including labor is a range of 11 to 22.
Keep in mind the rafter approach can take several days and up to 3 weeks to complete a suitable frame.
To frame a roof start by choosing a roof style like a frame or gabled.
Parts of a roof.
For instance a 4 12 pitch denotes a roof rising 4 inches for each 12 inches.
It is simple in design economical to construct.
A roof framing plan shows the size and direction of the construction 425 figure 20 1 the shape of the roof can play an important role in the design of the structure as seen in this home by the architect robert roloson.
A ridge board is a horizontal member of the roof frame.
Roof framing plans are usually required for complicated residential roof shapes and for most commercial projects.
Ridge board ridge beam.
Then gather your measurements by calculating the run rise and length of each rafter segment in feet and the pitch of your roof in inches.
An example of each is shown in figure 2 1.
Pitch can vary a great deal from a shallow slope up to a very steep pitch.
Ridge board v s beam.
Gable a gable roof has a ridge at the center and slopes in two directions.
Transfers the loadof the roof through the raftersto walls below.
Ridge beam sits below the rafters.
The point at which all the raftersare attached to.
Supported by lally columns.
Pitch also has its own denotation determined by the rise in inches in 12 inches.
It is the form most commonly used by the navy.
Which is equal to 1 4 or 1 3 the total span of the building not counting any overhang.