California 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.

California valley roof framing. Bct 123 roof framing 2 blind valley roof. First enter 4 12 for both the main and adjacent roof pitches with an eave angle of 90. 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. Project instructions remove existing valley rafters add wall fill in commons no tails.

On this house the main roof slope is an 4 12 pitch and the off angle california framing is at an 6 12 pitch. Therefore the pitch of the valley rafter is 12 in 17. 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. 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.

Look down the ridge of the valley metal to make sure it is straight from top to bottom and nail it off. A california valley is faster than cutting all of the shingles up a valley. California valley includes an actual laminate shingle like you see in the field on your roof installed parallel and is called a bleeder shingle on one side of the valley typically about 2 away from the valley center. The existing house built in the 1950 s has california okie valley framing.

This type of roof is more complicated than the figure 2 1 most common types of pitched roofs. 1x8 vrustic for the sleeper 2x4 jack rafters and 1x4 ridge that s sagging 2 or 3 from the roof spreading apart. Make sure the valley metal is straight before nailing it. With shingles bedded in cement it can be exported to other states.

May be for framers that can t cut valleys. The intersecting roof consists of a gable and valley or hip and valley. Here is eric s method. California valley roof remodeling room additions faster easier.