Residential Roof Framing Plan

The run or half the building span is the base of the triangle.

Residential roof framing plan.

Also different architectural styles will use the same type of roof. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Here we have a wood framed gable roof. A design and construction handbook nahbrc 1994.

Framing must transfer all gravity uplift and lateral loads to the foundation. In buildings including residential structures framing systems typically consist of the roof structure that supports the roof. 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. More complex roof designs will need to account for this accordingly.

Similar prescriptive design aids and efficient framing practices can be found in cost effective home building. And the line length measurement from the roof peak to the building wall is the hypotenuse. 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. It is the form most commonly used by.

For most load bearing requirements a roof truss will need to be placed every two feet along the walls. 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. Deck exterior and interior load bearing walls beams girders posts and floor framing. 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.

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. For high wind conditions prescriptive guidelines for design and construction may be found in the wood. The rise or height of the roof at its peak is the altitude of the triangle.

Let s consider a basic gable wood roof framing design. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. Such methods use a 4 foot design module which governs a 16 inch spacing of joists studs rafters and panel sheathing products. Gable a gable roof has a ridge at the center and slopes in two directions.

Common types of roofs and basic framing terms. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. You will then have to choose between two very different types of roof framing stick framing vs.