Shingling A Roof Valley

How to lay shingles.

Shingling a roof valley.

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. For a closed valley shingles are installed across the joint where planes intersect. Shingling both a closed cut valley and a long island valley is the same for the first half of the process. From this starter shingle continue moving up the valley roof.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Shingles protect sloping rooftops from the effects of rain snow and hail while providing an attractive crown for the house. Valleys are a prime leak area so it s important to be careful. Step 6 shingle valley.

To understand what makes a valley either closed or open it is important to understand how a valley is constructed. 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. 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. One of the details that varies between homes is the method of flashing the valley areas of the roof.

The next shingle should be directly atop the first one. Continue until you reach the top edge of the valley roof. With each new course roofing shingles continue up the valley. The open woven and closed cut methods are demonstrated.

Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. Keeping a solid roofing layer of shingles is an important way to avoid water damage and. Shingle the other side of the valley the same way. Each successive shingle should be then placed with a six inch overlap or until the adhesive strip contacts the bottom of the shingle tabs.

There are two common methods for completing the flashing of a valley in a shingle roof system. 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. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.