Roof Shingles On Valleys

Ensure ice and water protector has been installed along the valley first.

Roof shingles on valleys.

Place a roofing nail in each corner and one in the center on its appropriate side. One layer of shingles actually crosses the valley beneath the other. Measure the width of the sheet metal valley flashing. Then starting at the base of the.

I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner. Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys. Cut the tabs off of one shingle and lay it on the bottom edge with a 1 4 inch overhang. Start at the upper row of shingles at the upper end of the.

Position an extension ladder against the lower edge of the roof near the valley that is repaired. Press the shingle into the valley and make sure that it is flat against the surface of the roof. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley. To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof.

Typical valley flashing is 14 inches wide. Valleys are a prime leak area so it s important to be careful. The open woven and closed cut methods are demonstrated. For closed cut valleys shingles on one roof plane are installed through a valley and extended at least 30 cm into the intersecting plane.

Only nail at the edges with only enough nails to. Starting at the bottom edge of the valley begin laying down the shingles. However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed.