Shingling A Roof Valley

Snap a chalkline 2 to 3 inches past the valley center on the top layer of 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. Keeping a solid roofing layer of shingles is an important way to avoid water damage and. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. 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. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. Step 6 shingle valley. From this starter shingle continue moving up the valley roof.

For a closed valley shingles are installed across the joint where planes intersect. How to lay shingles. 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. With each new course roofing shingles continue up the valley.

The open woven and closed cut methods are demonstrated. 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. Shingling both a closed cut valley and a long island valley is the same for the first half of the process.

Valleys are a prime leak area so it s important to be careful. 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. Stop nailing 6 inches from the center. Shingles protect sloping rooftops from the effects of rain snow and hail while providing an attractive crown for the house.

Closed cut and long island roof valleys. There are two common methods for completing the flashing of a valley in a shingle roof system. Closed valleys or open valleys. Continue until you reach the top edge of the valley roof.