Shingling A Roof Valley

Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.

Shingling a roof valley. There are two common methods for completing the flashing of a valley in a shingle roof system. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. Continue until you reach the top edge of the valley roof.

Step 6 shingle valley. With each new course roofing shingles continue up the valley. 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. Roof one side of the valley running the shingles across it.

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. 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.

Shingling both a closed cut valley and a long island valley is the same for the first half of the process. Each successive shingle should be then placed with a six inch overlap or until the adhesive strip contacts the bottom of the shingle tabs. 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.

How to lay shingles. Closed cut and long island roof valleys. The next shingle should be directly atop the first one. The open woven and closed cut methods are demonstrated.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. From this starter shingle continue moving up the valley roof. One of the details that varies between homes is the method of flashing the valley areas of the roof. For a closed valley shingles are installed across the joint where planes intersect.