Roof Return Framing

The rise or height of the roof at its peak is the altitude of the triangle.

Roof return framing.

Rafters start at the top of the roof and go down to the eaves but not exceeding the exterior walls of the house. This structure supports all roof sheathing materials such as plywood sheathing underlayment and of course shingles. Therefore they cannot create overhangs or. The last pieces to go in were nailing blocks above the ledger for the back of the return and at the bottom edge of the soffit for attaching the rake 20.

The required bevel angle is a little more difficult to visualize since the return roof doesn t miter into the main roof on this side it tucks. And the line length measurement from the roof peak to the building wall is the hypotenuse. The run or half the building span is the base of the triangle. The miter angle for the sheathing on the right side is the major purlin miter angle.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Remember the eave return roof is the roof you re really working on so that s the major pitch. This excerpt from john carroll s the complete visual guide to building a house the taunton press 2014 uses a series of illustrations to detail the process of framing a cornice return with two different styles of roof. Both designs start with structural support and then the process varies slightly for a shed capped cornice return vs.

Make sure you drag over the wall and not over the roof edge. Before the roof sheathing goes on the open framing provides easy access for attaching the return blocking and the nailers for the rake soffit. Click and drag a new roof plane baseline along the outside edge of the framing layer of the wall that you would like to add returns to.