Roofing Valley Styles

Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks.

Roofing valley styles.

Align the bottom of a shingle along the chalk line bed the shingle into the roofing cement and nail it to the roof deck. Two common closed valley designs include. 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. With each new course roofing shingles continue up the valley.

Woven closed cut and open. The shingles on the higher slope are then cut in a straight line through the valley. Closed cut where shingles are first installed on the lower adjoining roof slope through the valley line followed by the shingle installation on the higher slope through the valley line. Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home.

One of the details that varies between homes is the method of flashing the valley areas of the roof. From the stepped off main part of the roof run shingles into the valley and cut them square from where the bottom corner intersects with the shingles nailed along the valley line. 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. All three styles are good options and come down to personal preference when deciding which is better.

Shingling both a closed cut valley and a long island valley is the same for the first half of the process. For a closed valley shingles are installed across the joint where planes intersect. Water collects in a valley to flow off the roof. Place the nails along the edge of the valley metal not into it.

Valleys come in three main styles. Essentially there are three main ways to shingle a roof valley. Closed woven and open. Roof valleys are the points at which 2 planes on your roof are joined which channel the water to flow off your roof.

Woven style where shingles are overlapped across the valley on alternative slopes. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. There are two common methods for completing the flashing of a valley in a shingle roof system. It s also known as a cross gable roof since the home has a cross footprint.