Shingling A Roof Valley

There are two common methods for completing the flashing of a valley in a shingle roof system.

Shingling a roof valley.

Keeping a solid roofing layer of shingles is an important way to avoid water damage and. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Roof one side of the valley running the shingles across it. In order to shingle this kind of roof valley a roofing professional has to install both roof faces at the same time which is quite slow.

How to lay shingles. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Shingle the other side of the valley the same way. Stop nailing 6 inches from the center.

For a closed valley shingles are installed across the joint where planes intersect. A woven valley shingle installation has other drawbacks including that they are slow to install especially in cold weather and more difficult to repair than the other types. Continue until you reach the top edge of the valley roof. Shingles protect sloping rooftops from the effects of rain snow and hail while providing an attractive crown for the house.

The next shingle should be directly atop the first one. Shingling both a closed cut valley and a long island valley is the same for the first half of the process. Closed valleys or open valleys. To understand what makes a valley either closed or open it is important to understand how a valley is constructed.

Step 6 shingle valley. With each new course roofing shingles continue up the valley. Closed cut and long island roof valleys. For the next two shingling methods closed cut and long island valleys i work out of the valley using laminated shingles instead of working toward the valley with three tab shingles.

According to long time iko sales representative jeff tessaro closed valleys for residential construction have been popular since he was a roofing contractor in the late 90 s.