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.

The existing house built in the 1950 s has california okie valley framing. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. But it doesn t have to be.

This roof valley is a perfect example. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. From the stepped off main part of the roof run shingles into the valley and cut them square from where the bottom corner intersects with the shingles nailed along the valley line. May be for framers that can t cut valleys.

Framing a complex roof is one of the trickiest parts of home building. 1x8 vrustic for the sleeper 2x4 jack rafters and 1x4 ridge that s sagging 2 or 3 from the roof spreading apart. If you begin with accurate as built measurements and use a construction calculator to do the math you can cut all of the rafters for most roofs on the ground in just one shot. 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.

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. California valley sleeper with the roof sheathing miter angle on the face of the sleeper and the bevel angle for the plumb cut using the roof slope angle. Project instructions remove existing valley rafters add wall fill in commons no tails. One nail goes into the top section of the shingle where it covers the valley metal.

The rest of the nails go in the nailing strip.