How Much Overhang On Roof Trusses

Overhang this is the extra part that extends beyond the exterior wall of the home.

How much overhang on roof trusses.

Pitch is a measurement of roof rise and width. The average overhang for trusses used for housing or related buildings with a finished soffit is between 1 4 to 2. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. A standard overhang is 16 24 inches but the overhang can be any length you wish.

How do you secure a truss. We can also build a cantilever for the overhang which is where the bottom chord of the truss continues beyond the wall. Two feet is the general maximum length for a typical roof overhang. A 4 12 pitch would rise four feet for every twelve feet of roof width.

Overhangs can vary from a few inches to a few feet depending on preference. This length can easily be changed to fit the need of the truss. 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. This will protect a roof from most types of damage.

If the overhang is more than around 2 6 it will require a 2 6 top cord for the tail section to handle that amount. If the overhang exceeds 2 5 feet we will need to use a larger top chord for the overhang typically a 2 6 top chord for the truss. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes.