Roofing Valley Styles

Valleys come in three main styles.

Roofing valley styles.

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. Roof valleys are the points at which 2 planes on your roof are joined which channel the water to flow off your roof. Two common closed valley designs include. Water collects in a valley to flow off the roof.

Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home. Closed valley s or open valleys. 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.

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. Woven style where shingles are overlapped across the valley on alternative slopes. Shingling both a closed cut valley and a long island valley is the same for the first half of the process.

Woven closed cut and open. Align the bottom of a shingle along the chalk line bed the shingle into the roofing cement and nail it to the roof deck. Essentially there are three main ways to shingle a roof valley. It s also known as a cross gable roof since the home has a cross footprint.

All three styles are good options and come down to personal preference when deciding which is better. With each new course roofing shingles continue up the valley. 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.

A roof valley is formed where two roof slopes meet. Place the nails along the edge of the valley metal not into it. For a closed valley shingles are installed across the joint where planes intersect. 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.