Gable Valley Roof Framing

The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.

Gable valley roof framing.

The ridge board is the horizontal framing member that defines the roofline in a gable roof. It extends from one gable end to the other at the peak of the roof. A roof for insulation solar panels and bedrooms intersecting roofs and gable ends form an interesting roofline and allow for usable space on the second level. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes.

An example of each is shown in figure 2 1. It is simple in design economical to construct. Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult.

Gable a gable roof has a ridge at the center and slopes in two directions. Sep 17 2014 a dutch roof has elements of both a gable roof and a hip roof. Like the hip rafter it extends diago nally from the top plate to the ridge. In a standard gable roof the ridge.

In this article builder larry haun explains how the framing is laid out cut and installed. After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors. The first cut that i make on both the common rafters and the valley rafter is the plumb cut where the rafter will meet the ridge board. A valley rafterforms a depression in the roof instead of a hip.

For a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. Gable roof framing calculator plan diagram with full dimensions. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. Another common design in the northeast is the saltbox which is a gable roof with one longer side.

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. Whether you re tying in new gable dormers or adding a chimney cricket during roof framing giving the valley jacks a place to land is an easy task with these step by step instructions. Roofs are basically five types. Shed gable hip gambrel and mansard.

Therefore the pitch of the valley rafter is 12 in 17. On the common rafters the plumb cut is marked with a framing square for a 12 in 12 pitch 45 and cut square i e no bevel. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing.