Proper Way To Shingle A Roof Valley

Roof one side of the valley running the shingles across it.

Proper way to shingle a roof valley.

Doing it properly will keep you without problems for 20 or 40 years. There are two common methods for completing the flashing of a valley in a shingle roof system. Laying shingles can be hard and hot work but the reward of an attractive watertight roof can be worth it. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

Shingle the other side of the valley the same way. Stop nailing 6 inches from the center. Regardless of the shingling method every successful valley installation begins with proper roof preparation. Begin to install roof shingles on either roof face.

To understand what makes a valley either closed or open it is important to understand how a valley is constructed. Over driving nails is always a. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. One of the details that varies between homes is the method of flashing the valley areas of the roof.

You can use a straight edge to achieve a straight cut. As shingles are installed on the adjoining roof area the end of each course of shingles is trimmed cut 2 back of. 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. The most common closed valley is a closed cut valley where shingles are installed on the entire roof area on one side of the valley first with each shingle course extending at least 12 through the valley centerline.

Closed valleys or open valleys. Taking the right steps before applying the shingles not only goes a long way toward preventing roof leaks but it also helps to cushion the shingles or metal valley against the ragged edges of the roof sheathing at the centerline of. Keeping a solid roofing layer of shingles is an important way to avoid water damage and leaks. 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.

A solid watertight roof is absolutely essential to your home but the asphalt shingles that protect your roof from the elements don t last forever.