Roofing Valley Styles

Roof valleys are the points at which 2 planes on your roof are joined which channel the water to flow off your roof.

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. A roof valley is formed where two roof slopes meet. It s also known as a cross gable roof since the home has a cross footprint. 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. 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. Two common closed valley designs include.

Water collects in a valley to flow off the roof. Valleys come in three main styles. Essentially there are three main ways to shingle a roof valley. Woven closed cut and open.

All three styles are good options and come down to personal preference when deciding which is better. For a closed valley shingles are installed across the joint where planes intersect. The gable and valley roof is a very popular roof design. The shingles on the higher slope are then cut in a straight line through the valley.

Place the nails along the edge of the valley metal not into it. Closed valley s or open valleys. Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks.

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. 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. There are two common methods for completing the flashing of a valley in a shingle roof system.