Shingling A Roof Valley

Valleys are a prime leak area so it s important to be careful.

Shingling a roof valley.

How to lay shingles. For a closed valley shingles are installed across the joint where planes intersect. Closed valleys or open 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.

Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. Shingling both a closed cut valley and a long island valley is the same for the first half of the process. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. With each new course roofing shingles continue up the valley.

Each successive shingle should be then placed with a six inch overlap or until the adhesive strip contacts the bottom of the shingle tabs. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Continue until you reach the top edge of the valley roof. One of the details that varies between homes is the method of flashing the valley areas of the roof.

From this starter shingle continue moving up the valley roof. Step 6 shingle valley. The open woven and closed cut methods are demonstrated. Roof one side of the valley running the shingles across it.

Shingles protect sloping rooftops from the effects of rain snow and hail while providing an attractive crown for the house. 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. Keeping a solid roofing layer of shingles is an important way to avoid water damage and. The next shingle should be directly atop the first one.

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. 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. There are two common methods for completing the flashing of a valley in a shingle roof system. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.