How Much Overhang On Roof Trusses

However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes.

How much overhang on roof trusses.

Overhangs can vary from a few inches to a few feet depending on preference. 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. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. Measuring trusses depends on how much overhang you want length and pitch of the roof.

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. We can also build a cantilever for the overhang which is where the bottom chord of the truss continues beyond the wall. This length can easily be changed to fit the need of the truss. Two feet is the general maximum length for a typical roof overhang.

This can make extensive roof overhangs more trouble than they are worth in all but the harshest climates. 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. A standard overhang is 16 24 inches but the overhang can be any length you wish. The average overhang for trusses used for housing or related buildings with a finished soffit is between 1 4 to 2.

Pitch is a measurement of roof rise and width. That said overhangs can extend as far as 2 without the need for external supports. A 4 12 pitch would rise four feet for every twelve feet of roof width.