As you can see the initial plan for framing your roof needs to take into account several key variables such as the shape of the roof and any relevant community building codes.
Residential roof framing plan.
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.
More complex roof designs will need to account for this accordingly.
Gable a gable roof has a ridge at the center and slopes in two directions.
Floor beam span tables of residential structural design we will now look at roof rafter and beam design.
Common types of roofs and basic framing terms.
For high wind conditions prescriptive guidelines for design and construction may be found in the wood.
Similar prescriptive design aids and efficient framing practices can be found in cost effective home building.
It is the form most commonly used by.
Such methods use a 4 foot design module which governs a 16 inch spacing of joists studs rafters and panel sheathing products.
For most load bearing requirements a roof truss will need to be placed every two feet along the walls.
The run or half the building span is the base of the triangle.
You will then have to choose between two very different types of roof framing stick framing vs.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.
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.
An example of each is shown in figure 2 1.
Here we have a wood framed gable roof.
Continuing on from part 3.
Deck exterior and interior load bearing walls beams girders posts and floor framing.
Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss.
Framing must transfer all gravity uplift and lateral loads to the foundation.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
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.
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.
The rise or height of the roof at its peak is the altitude of the triangle.
