Gable Valley Roof Framing

In this article builder larry haun explains how the framing is laid out cut and installed.

Gable valley roof framing.

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. 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 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. An example of each is shown in figure 2 1.

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. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. Like the hip rafter it extends diago nally from the top plate to the ridge. Another common design in the northeast is the saltbox which is a gable roof with one longer side.

Therefore the pitch of the valley rafter is 12 in 17. It extends from one gable end to the other at the peak of the roof. Gable roof framing calculator plan diagram with full dimensions. 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 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. The ridge board is the horizontal framing member that defines the roofline in a gable roof. 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. It is simple in design economical to construct.

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. Roofs are basically five types. It is the form most commonly used by the navy. Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult.

In a standard gable roof the ridge. Gable a gable roof has a ridge at the center and slopes in two directions. For a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet.

Common types of roofs and basic framing terms. Sep 17 2014 a dutch roof has elements of both a gable roof and a hip roof. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition.