More complex roof designs will need to account for this accordingly.
Residential roof framing plan.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
For high wind conditions prescriptive guidelines for design and construction may be found in the wood.
You will then have to choose between two very different types of roof framing stick framing vs.
Gable a gable roof has a ridge at the center and slopes in two directions.
Continuing on from part 3.
The rise or height of the roof at its peak is the altitude of the triangle.
Floor beam span tables of residential structural design we will now look at roof rafter and beam design.
An example of each is shown in figure 2 1.
A design and construction handbook nahbrc 1994.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
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.
Roof framing plans are usually required for complicated residential roof shapes and for most commercial projects.
Similar prescriptive design aids and efficient framing practices can be found in cost effective home building.
Common types of roofs and basic framing terms.
For most load bearing requirements a roof truss will need to be placed every two feet along the walls.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.
Let s consider a basic gable wood roof framing design.
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.
Deck exterior and interior load bearing walls beams girders posts and floor framing.
It is the form most commonly used by.
Framing must transfer all gravity uplift and lateral loads to the foundation.
The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members.
Depending on how wide the home is you can divide the total length in feet by two to determine how many trusses will be needed.
Also different architectural styles will use the same type of roof.
In buildings including residential structures framing systems typically consist of the roof structure that supports the roof.
Here we have a wood framed gable roof.
The run or half the building span is the base of the triangle.