Gable Roof Valley Framing

Tie a new gable or hip roof to an existing gable or hip roof with valley rafters which perform the same function as ledgers.

Gable roof valley framing.

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. Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs. 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. 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. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. Where two gable roof lines meet the intersection forms inside corners called valleys.

Like the hip rafter it extends diago nally from the top plate to the ridge. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. A valley rafterforms a depression in the roof instead of a hip. 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. Gable roof framing calculator plan diagram with full dimensions. Framing the gable ends 1 nail 2 boards onto your walls as top plates. The diagonal rafter that runs from the intersection of the ridges down to the top of the walls at the inside.

Strip the roofing from the old roof at the connection point to. The valley is formed where the two different sections of the roof meet generally at a 90 angle. Therefore the pitch of the valley rafter is 12 in 17. This type of roof is more complicated than the figure 2 1 most common types of pitched roofs.

For a good straight fascia add an extra inch or 2 to the tails of all your rafters total length.