The overhang of the truss is horizontal distance from the end of the bottom chord or wall to the end of the top chord of the truss.
Roof truss design overhang.
This roof is more complex because of the two different angles with the roof.
Top chord an inclined or horizontal member that establishes the upper edge of a truss usually carrying compression and bearing stress.
Overhang this is the extra part that extends beyond the exterior wall of the home.
To accomplish this your end trusses should be designed with either one truss at five foot plus a notation stating they can support an 18 inch end overhang or have a spacing of 6 6.
In addition to the lean to shed there is a gable shed roof.
On some roof trusses the 2 top chords extend down over the edges of the bottom chord creating a built in overhang.
The gable shed has a roof like a house so the roof trusses will have a peak in the middle.
Guessing your building has a pair of trusses every 10 feet and a single truss on each end it will need to be designed to account overhang weight plus any other dead loads and snow loads.
Depending on the complexity of your free computational tool it may require you to enter details about rafter spacing usually 16 on center bridge type height and board size.
If you think you d prefer an overhang style truss adjust the measurements for your top chords accordingly.
16 4 12 residential end frame.
The balance between solar heat gain and shading you desire.
This roof truss is only one angle and a board that goes from high to low and back to front.
The amount of rainfall in the area around your home.
Your top chords can protrude beyond the bottom chord anywhere from 1 3 feet 0 30 0 91 m.
Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list.
The amount of shading that you would like for your windows and doors.
Now that you know how steep you want your shed roof the pitch and how much overhang you want you can jump right to this shed roof truss design calculator.
The top chord can have two cuts.
In designing the overhanging part of a roof you will need to keep in mind certain key features.
Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.
Before you input your values be sure to account for the extra 4 on each side for the span of your shed.
