Gable Valley Roof Framing

Gable roof framing calculator plan diagram with full dimensions.

Gable valley roof framing.

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

Another common design in the northeast is the saltbox which is a gable roof with one longer side. 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. Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult. Common types of roofs and basic framing terms.

At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. The ridge board is the horizontal framing member that defines the roofline in a gable roof. Roofs are basically five types. It is simple in design economical to construct.

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. In this article builder larry haun explains how the framing is laid out cut and installed. 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. Therefore the pitch of the valley rafter is 12 in 17.

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. Sep 17 2014 a dutch roof has elements of both a gable roof and a hip roof. 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. In a standard gable roof the ridge.

Like the hip rafter it extends diago nally from the top plate to the ridge. It extends from one gable end to the other at the peak of the roof. It is the form most commonly used by the navy. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes.

Shed gable hip gambrel and mansard. For a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. Gable a gable roof has a ridge at the center and slopes in two directions.