Valley Roof Intersections

Iko recommends that you install architectural shingles with the open valley method for the best roof performance.

Valley roof intersections.

When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. Valley rafters and valley jacks. Entire width of new metal flashing properly extends over fascia at bottom of roof. This recommendation includes iko s premium shingles.

Where two roof valleys meet for example above a gable dormer a soldered joint is likely to break from the movement. The bottom of our blind valley was about 30 inches short of the bottom of the porch roof so we extended the line of the valley down to the edge of the new roof. The diagonal rafter that runs from the intersection of the ridges down to. To do this we had to extend the plane of the shed roof out over the porch roof creating a small triangular extension of the existing roof.

All shingles removed from closed cut valley. Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss. Also different architectural styles will use the same type of roof. A lead cap overlaid 6 inches onto each valley is an effective way to seal the top.

The three methods to shingle a roof valley. You can see in our roof valley photo left that there has been a history of patching at the valley intersection on this roof.