How To Frame A Valley In A Roof

Soup to nuts riley shows the proper way of installing a valley on a roof.

How to frame a valley in a roof.

Then nail off the valley sleeper material at 6 o c. 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. The rise or height of the roof at its peak is the altitude of the triangle. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing.

This is the only pic i have so its not the best example. The valley rafter is marked for a 12 in 17 pitch and then cut with a double bevel to fit into the ridge intersection. New 2013 california valley framing requirements. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

This will establish a center point. In conventional roof framing the. 504 chapter 18 hip valley jack rafters. Nail off the new roof sheathing at the shear wall schedule nailing pattern.

Install flat blocking below the new california valley sleeper. Then string a line across the peaks of the perpendicular trusses. Framing a dramatic dormer. Framing a roof valley.

Soup to nuts riley shows the proper way of installing a valley on a roof. If doghouse dormers or shed dormers aren t dressy enough a dormers can add an exciting design note and they re easier to seal against the elements. The roof framing plan. And the line length measurement from the roof peak to the building wall is the hypotenuse.

The general arrangement of rafters shown in the larger drawing. The run or half the building span is the base of the triangle. Obviously sheet the roof thats under the layover trusses first. Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes.

A mastery of roof framing with hip valley and jack rafters is what distinguishes the true hip rafters 18 1 figure 18 1 hip jack and valley rafters roof anatomy a. Do the math on a calculator so that you can concentrate on what s important. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition.