Roofing Valley Styles

This recommendation includes iko s premium shingles.

Roofing valley styles.

Closed valleys use the primary roofing material usually shingle or tile to cover the valley and give an appearance of continuity across the roof. All three styles are good options and come down to personal preference when deciding which is better. There are two main styles. To understand what makes a valley either closed or open it is important to understand how a valley is constructed.

Shingles are then bedded in cement going up the valley. One of the details that varies between homes is the method of flashing the valley areas of the roof. It looks very rich and nice but comes with a nice price tag that is usually frown upon afterwards. Valleys come in three main styles.

The three methods to shingle a roof valley. Closed woven and open. The rest of the nails go in the nailing strip. This method is a similar method to what mike guertin calls a long island valley which runs shingles from the first slope past the valley and up the second slope.

There are two common methods for completing the flashing of a valley in a shingle roof system. 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. Iko recommends that you install architectural shingles with the open valley method for the best roof performance.

There are other names for the valley style. Closed valleys or open valleys. With a closed cut valley there s no need to shingle the two roof planes at the same time. Using metal in the valleys is also used more in cedar wood shake roofing slate roofing clay tile roofing or even very high end asphalt shingle roofing that is too thick to wrap into tight valley areas of the roof.

One nail goes into the top section of the shingle where it covers the valley metal. No cut valley tamko valley tamko brand shingle instructions show this as a preferred method california valley. Some homeowners prefer the consistent look that a woven valley provides. Closed cut valleys have been created for cost savings purposes but the open style metal valley is a proven valley application that will match the life expectancy of any roofing warranty.

Check with the shingle manufacturer to see if they approve of the method if you are concerned about warranty coverage. Closed cut valley even if i work toward the valley with three tab shingles cut valleys are faster than woven valleys hands down. To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together. Plus cutting the closed cut valley shingles can happen after the rest of the roof is shingled.