Unsupported Roof Overhang
If you are building trusses it is easy to make part of the roof into a cantilevered extension.
Unsupported roof overhang. Inadequate nailing of the sheathing to supporting framing or inadequate connections of the framing at the rake edge that supports the roof. Steeper pitched metal roofs typically do not require much overhang because snow and ice slides off the smooth surface so easily. Just make one of the rafter members extend beyond the cross tie. The other common wind related failure at gable ends is uplift of the roof decking at the overhang.
Because there is so little danger of water damage there is no required overhang and overhang lengths are minimal and sometimes nonexistent. Building a shed roof with an overhang is an important part of protecting your shed and thus should not be overlooked. A shed roof overhang is something most homeowners don t think about until their standing in the rain trying to get the door unlocked or fretting about all the water that s suddenly pooling around the shed s foundation. This guide will help you decide what shed overhang is best for your shed and walk you through the installation process.
Further note that the 3 layers of 2 inch rigid. If your roof is strong enough it can extend beyond the support walls without external bracing. This can be from two causes. Moderate climates in moderate climates there is some damage of wood decay and a roof overhang is recommended.
A cantilever is any structure such as a roof or floor overhang that is braced internally.