Asphalt Shingle Roof Valley

I work out of the valley with full shingles placing the lower corner of the shingle at the point where it crosses the valley facing edge of the starter shingles.

Asphalt shingle roof valley.

Preparation of the valley with an underlayment is a critical part of your roof installation. A closed cut asphalt shingle roof valley starts the same way as a woven valley with the first course of shingles run across the valley from both roof planes lapping the shingle from the larger or steeper roof plane over the shingle from the smaller shallower plane. This recommendation includes iko s premium shingles. One of the details that varies between homes is the method of flashing the valley areas of the roof.

The underlayment is an integral part of every valley and provides a waterproof base all valley installations require appropriate underlayment layers. Contact oro valley roofing inc when asphalt shingles begin to show signs of curling and buckling and if you spot loose or visible nails or broken or missing shingles. Iko recommends that you install architectural shingles with the open valley method for the best roof performance. For this article i mocked up a section of roof to show four ways to shingle valleys.

The three methods to shingle a roof valley. There are two common methods for completing the flashing of a valley in a shingle roof system. The three methods to shingle a roof valley. Because valleys collect and channel a greater volume of water than a single roof plane i always make an extra effort to design and build them as watertight as possible.

I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. Closed valleys or open valleys. When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof.

When two roof planes meet at an inside corner a valley is created. Roof installation how to shingle a valley hd by roofrepair101 more about roofing at. To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof.