Framing Intersecting Roof Lines

A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration.

Framing intersecting roof lines.

Learn more about off angle roof framing. Keeping the outside edge of the blade flush with the edge of the plywood slide the square until the 12 inch mark on the tongue intersects with the hip. Like the hip rafter it extends diago nally from the top plate to the ridge. Is that it is more difficult to construct than a gable roof.

At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. A hip rafter is called for only when framing a hip roof but a valley rafter is needed on both hip and gable roofs whenever roof planes intersect. A jack rafter is a shortened com mon rafter that may be framed to a hip. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge.

In a standard gable roof the ridge. It extends from one gable end to the other at the peak of the roof. Rafter forms a depression in the roof instead of a hip. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes.

Intersecting the intersecting roof consists of a gable and valley or hip and valley. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. Explore framing complexities that result when roofs of two different pitches intersect. The ridge board is the horizontal framing member that defines the roofline in a gable roof.

The valley is formed where the two different sections of the roof meet generally at a 90 angle. Add the length of the overhang beyond this mark and.