Gable Roof Valley Framing

The intersecting roof consists of a gable and valley or hip and valley.

Gable roof valley framing.

Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. 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 valley is formed where the two different sections of the roof meet generally at a 90 angle. The diagonal rafter that runs from the intersection of the ridges down to the top of the walls at the inside.

Framing the gable ends 1 nail 2 boards onto your walls as top plates. For a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. 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.

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. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. This type of roof is more complicated than the figure 2 1 most common types of pitched roofs. Where two gable roof lines meet the intersection forms inside corners called valleys.

Therefore the pitch of the valley rafter is 12 in 17. Gable roof framing calculator plan diagram with full dimensions. Tie a new gable or hip roof to an existing gable or hip roof with valley rafters which perform the same function as ledgers. Strip the roofing from the old roof at the connection point to.

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. Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs. 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.

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.