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.

Of the many ways that gable end overhangs are built the two most common ways are the use of ladder details and outriggers. Gable end overhangs also known as rake overhangs extend all the way to the peak of the roof. For gabled roofs the roof rafters extending beyond the wall caps creating an angled roof overhang on the eaves. 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 typical metal roof overhang may be 2 to 4 inches or even less. 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. Then a 2 4 outlooker is placed over the dropped gable and butted into the side of the adjacent full height truss.

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. Gable end detail overhang cut and then rebuilt to hide the thickness of the over roofing rigid insulation. Then the barge or fly rafter is attached to the end of the cantilevered outlooker. Three inches is needed for overlaps and a minimum of 1 for ridge preparation.

Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. Rake trim can be flat with no overhang or it can overhang the gable end like an eave. Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. Prior to preparing gable trim you will need to know the pitch of your roof.

Now comes the really really big point. In extreme versions they appear to create the prow of a ship and are thus known also as prow overhangs. 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. For example if you had 10 0 of coverage then you would need a 10 4 piece of gable trim.

That means you will have 4 of materials loss. A brow roof is a narrow roof attached to the wall at the level of the first floor ceiling. If a truss roof is used with this method the gable truss is manufactured 3 shorter than the others.