Gable End Roof Overhang Framing

There are no similar requirements for wood framing.

Gable end roof overhang framing.

Framing for gable end overhangs rakes for steel framing is codified in the irc 2012 2015 r804. The picture above shows the plan view of a gable roof ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building. That rafter outside forms the overhang for the barge boards to fix to and so the soffit boards and ventilation are continuous all the way. Uplift of roof decking at the overhang.

A rake on the gable end of the roof can be created with the construction of additional roof framing. Then load bearing roof beams fixed to the trusses are extended in the same way. This can be from two causes. For slanted roof sheds overhangs add character and facilitate proper drainage.

Framing a gable roof building a gable with barge end purlin struts and collar ties. The american wood council s 2012 wood frame construction manual defines rake overhang as the horizontal projection of the roof measured from the outside face of the gable endwall to the. The biggest problems with gable end overhang strength occur if your roof overhang is greater than about 12 inches. The other common wind related failure at gable ends is uplift of the roof decking at the overhang.

After the gable is framed lookouts extend from the first rafter inside the gable wall out over the plates to support the overhanging barge rafter. Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. Inadequate nailing of the sheathing to supporting framing or inadequate connections of the framing at the rake edge that supports the roof. After the end points of the plates are located the length is found using a base 1 triangle for a 6 in 12 pitch where the hypotenuse is 1 118 times the length of the base.

Of the many ways that gable end overhangs are built the two most common ways are the use of ladder details and outriggers ladder details are usually adequate if the overhang is less than about 8 inches although they are frequently used for longer overhangs.