Maximum Metal Roof Overhang Without Support

Inadequate nailing of the sheathing to supporting framing or inadequate connections of the framing at the rake edge that supports the roof.

Maximum metal roof overhang without support.

Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Some metal roofs have wood framed eaves that extend several inches or a foot beyond the house or shed wall to support metal roofing. The construction of a roof overhang is one important way that homeowners can protect the exterior of their home and preserve its value. They can also include certain architectural features that make overhangs more than just functional parts of the home.

With a flat shed roof the roof simply extends past the wall plate to provide an overhang. That said overhangs can extend as far as 2 without the need for external supports. Overhangs like those found on a wall pass through and eating bars of more than 6 but less than 12 can be supported with wood or metal corbels. This can be from two causes.

In designing the overhanging part of a. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Solid surface tops that are thick that extend beyond the cabinets by six inches or more need overhang support. The other common wind related failure at gable ends is uplift of the roof decking at the overhang.

The size of the roof overhang you choose depends largely on the style of your shed s roof. This will protect a roof from most types of damage. Two feet is the general maximum length for a typical roof overhang. The distance your joists can safely cantilever or overhang a drop beam is determined by the size of the joists the wood type and grade of the lumber and the spacing between joists.

This gets snow and ice drip line farther away from the building walls without the danger of the metal roofing bending under the weight. Many building departments limit joist cantilevers to 24 maximum. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. This can make extensive roof overhangs more trouble than they are worth in all but.