Stick Frame Roof Design

Continuing on from part 3.

Stick frame roof design.

The two basic types of roof construction stick framing and truss assembly both produce a structurally sound roof. It is easy for boards to walk off the job site when they are loose and in easy to carry pieces. Stick roof overview a stick framed roof is made up of individual rafters and that are connected to a top beam. Additional boards are placed horizontally on the frames to create a complete cover for the structure.

You then have rafters running down from this ridge board and resting on the top wall plates. Here we have a wood framed gable roof. Then dimensional lumber called rafters are cut to fit one piece at a time and shoved up to a framer on the roof that s balancing on scaffolding who installs the rafters. Determining the ridge beam height.

It starts with setting ridge and valley beams above the house walls. A stick framed roof uses 2x4 s or 2x6 s or whatever you are framing with but has a ridge board running down the middle ridge line. Shed gable hip gambrel and mansard. Stick framing can t span very far.

Stick framing takes place on site while trusses come prefabricated and ready to. Although truss designed roofs are predominant throughout most of the residential construction industry there are regions where building with stick frame roofs is still common. The finished ridge beam height z above the top of the wall will be m plus the y height. 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. Sometimes the rafter will have a tail and extend out past the wall so that you have a soffit or overhang. In this post randy shackelford discusses some design choices available to stick frame builders the challenges they pose and the solutions offered by the simpson strong tie three connector system for stick frame roofing. 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.

Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult. Another common design in the northeast is the saltbox which is a gable roof with one longer side. Stick framing requires larger lumber and more of it. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.

The beam or the ridge is the central part of the structure as all the framing must be connected to it.