Roofing Valley Styles

Two common closed valley designs include.

Roofing valley styles.

The gable and valley roof is a very popular roof design. Water collects in a valley to flow off the roof. 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. Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home.

All three styles are good options and come down to personal preference when deciding which is better. Closed valley s or open valleys. Essentially there are three main ways to shingle a roof valley. Woven style where shingles are overlapped across the valley on alternative slopes.

It s also known as a cross gable roof since the home has a cross footprint. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks. The shingles on the higher slope are then cut in a straight line through the valley. Valleys come in three main styles.

For a closed valley shingles are installed across the joint where planes intersect. Closed woven and open. Shingling both a closed cut valley and a long island valley is the same for the first half of the process. With each new course roofing shingles continue up the valley.

Woven closed cut and open. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. 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. One of the details that varies between homes is the method of flashing the valley areas of the roof.

Place the nails along the edge of the valley metal not into 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. Align the bottom of a shingle along the chalk line bed the shingle into the roofing cement and nail it to the roof deck. A roof valley is formed where two roof slopes meet.