How To Tie In Vallys On Shingled Roofs Together

Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.

How to tie in vallys on shingled roofs together.

To secure the roof valley flashing nail it down carefully. Step flashing protects the gap where roofs meet walls by weaving into the roof shingles. How to shingle a valley with architectural shingles. String the line along the top of the frame until it meets the shingle roof.

To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. 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. We re going to do a pitch transition or change. We need to do something where that change happens so the panels can go down and water can come off hit the lower slope and come off the roof.

Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. The roofing cement will resist possible leaks overnight. However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed. To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together.

Up from the valley center and cut through the shingles and underlayment. Then starting at the base of the valley center your first piece of flashing in the valley. After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in. The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley.

At the bottom of the roof water needs to be. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. Hold the end of a chalk line at one of the outermost top corners of the carport roof frame. In addition it is important to avoid nailing the shingles through the valley metal.

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. Ensure ice and water protector has been installed along the valley first. Mark this point of the. A chalk line is then used to strike a line from the top of the valley to the bottom of the valley.

But if the shingles are not laid properly in the valley a woven valley may not lay flat creating bumps and detracting from the overall look of the roof.