Roof Beam Framing Plan

In order to do roof framing properly it is important to understand the unique shape and dimensions of your roof since these will greatly impact the geometry of the roof frame.

Roof beam framing plan.

Here we have a wood framed gable roof. Supported by lally columns. Determining the ridge beam height. The point at which all the rafters are attached to.

Floor beam span tables of residential structural design we will now look at roof rafter and beam design. If you know the slope x in 12 you want to use for your roof framing design you can use it along with the run r to determine the height of the ridge beam for example if the slope is 4 in 12 and the run is 12 feet the ridge beam height m will be 4 feet. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. Roof framing simply describes how a group of rafters and beams are fitted or joined together in order to provide support for the roof covering.

Let s consider a basic gable wood roof framing design. Continuing on from part 3. Ridge beam sits below the rafters. Transfers the load of the roof through the raftersto walls below.

Parts of a roof a ridge board is a horizontal member of the roof frame. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Collar ties rafter ties tension beams structural ridge beams. While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below.