Metal Roof Gable Overhang

The biggest problems with gable end overhang strength occur if your roof overhang is greater than about 12 inches.

Metal roof gable overhang.

A typical metal roof overhang may be 2 to 4 inches or even less. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. That means you will have 4 of materials loss. Extending a gable roof can be tricky since it involves working on the roof but you may be able to do it yourself if you only need to add 1 2 2 inches 1 3 5 1 cm.

It is cut angled and folded onto the roof line and fasteners usually evenly spaced between 12 and 24 inches apart set it in place. It can be made of metal. Prior to preparing gable trim you will need to know the pitch of your roof. Gable end overhangs also known as rake overhangs extend all the way to the peak of the roof.

Rake trim also known as gable trim is a metal flashing finishing piece placed along the roofline at the sloped sides at the end of a residence s dormer or gable. A rake on the gable end of the roof can be created with the construction of additional roof framing. Three inches is needed for overlaps and a minimum of 1 for ridge preparation. For example if you had 10 0 of coverage then you would need a 10 4 piece of gable trim.

Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Of the many ways that gable end overhangs are built the two most common ways are the use of ladder details and outriggers. Then the barge or fly rafter is attached to the end of the cantilevered outlooker. The 6 inches of rigid insulation added to the top of the existing roof deck needed to be done in a manner that was invisible.

However for larger extensions you ll need to hire a professional to get up there and remove large portions of the roof before extending the overhang. Rake trim can be flat with no overhang or it can overhang the gable end like an eave. In extreme versions they appear to create the prow of a ship and are thus known also as prow overhangs. For gabled roofs the roof rafters extending beyond the wall caps creating an angled roof overhang on the eaves.

Now comes the really really big point. Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. Then a 2 4 outlooker is placed over the dropped gable and butted into the side of the adjacent full height truss.