Roofing Valley Styles

With each new course roofing shingles continue up the valley.

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

Closed valley s or open valleys. 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. A roof valley is formed where two roof slopes meet. There are two common methods for completing the flashing of a valley in a shingle roof system.

Woven style where shingles are overlapped across the valley on alternative slopes. Woven closed cut and open. Water collects in a valley to flow off the roof. Closed woven and open.

The gable and valley roof is a very popular roof design. Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home. Essentially there are three main ways to shingle a roof valley. For a closed valley shingles are installed across the joint where planes intersect.

One of the details that varies between homes is the method of flashing the valley areas of the roof. Valleys come in three main styles. Place the nails along the edge of the valley metal not into it. Shingling both a closed cut valley and a long island valley is the same for the first half of the process.

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. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. It s also known as a cross gable roof since the home has a cross footprint. Two common closed valley designs include.