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contact with the angle-cut of the jack rafters. In hip roofs, the jack rafters are nailed to the hip rafters and wall plate. Where a valley occurs, nail the jack rafters to the valley rafter and ridge. Dormers are framed so that the rafters at each side are doubled to support the side studs and valley rafters. The top ends of the valley rafters are supported by a header spanning between the doubled rafters (Figure 88). The most common method of construction is to install the roof sheathing before the dormer is framed, and then cut the sheathing flush with the framing members
around the opening. A bottom plate added on top of the sheathing supports the side studs enclosing the dormer and also serves as a nailing base for the wall sheathing.
Gable-End Framing and Projections After roof framing members have been installed, the gable-end studs are nailed in place. Studs in unfinished attics can be placed with the wide face parallel to the wall. Cut the ends of the studs to fit the angle of the rafter and toenail them to the wall plate and to the underside of the rafter with at
88 Typical dormer framing
double header jack rafter double rafter
joist hangers valley rafter
side stud size window to allow for proper flashing, detailing and finishing of roofing roof sheathing applied prior to construction of dormer